Operations Manual
Contents
1. 0 5 LEL 0 5 LEL 2 5 LEL 2 5 LEL IR 1460780 0 5 volume Carbon Dioxide CO2 0 01 volume T Band Tolerance band 29 Sensor Specifications MK211 6 Catalytic combustion sensor for combustible gases and vapors GfG part number 1460710 Response time t90 lt 30 seconds Pressure 950 to 1 100 hPa Maximum 5 of detection range or 15 of display 1 013 hPa Humidity 5 to 90 r h Maximum 5 of detection range or 15 of display 55 r h Temperature 4 to 122 F 20 to 50 C Maximum 3 of detection range or 10 of display 68 F or 20 C Cross sensitivities at 50 LEL 2 00Vol H2 approx 140 0 70Vol C4H10 approx 72 2 20Vol CH4 100 0 70Vol C5H12 approx 71 0 85Vol C3H8 approx 85 0 50Vol C6H14 approx 55 The above information refers to the detection range for methane It may vary from sensor to sensor and depends on the gas concentration and on the age of the sensor Expected lifetime 3 years MK222 2 3 Photo ionisation sensor for toxic combustible vapors Isobutylene i C4H8 GfG part number 1460703 1460704 Response time t90 lt 30 seconds Ionisation potential 10 6 eV Cross sensitivities Kerosene approx 250 C8H8 250 C7H8 190 C6H6 190 Diesel approx 110 Benzine approx 90 C3H60 83 C8H18 45 C7H16 40 H2S 30 C6H14 22 NO 14 NH3 11 C5H12 10 C4H10 C3H8 CH4 H2 0 Expected lifetime 3 years MK224 1 Infrared2. lt 90 seconds Pressure 800 to 1 200 hPa Maximum 10ppm or 10 of display refered to 1 000 hPa Humidity 15 to 90 r h Maximum 10ppm or 10 of display refered to 50 r h Temperature 4 to 122 F 20 to 50 C Maximum 20ppm or 20 of display refered to 68 F or 20 C Cross sensitivities C2H4 80 NO 35 HCN 30 CO lt 20 H2S lt 20 NO2 SO2 Cl2 HCl 0 1 Expected lifetime 2 years 31 MK396 5 Electrochemical sensor for hydrogen H2 2 GfG part number 1318260 Response time t50 lt 45 seconds t90 lt 90 seconds Pressure 800 to 1 200 hPa Maximum 0 01Vol or 10 of display refered to 1 000 hPa Humidity 15 to 90 r h Maximum 0 01Vol or 10 of display refered to 50 r h Temperature 4 to 122 F 20 to 50 C Maximum 0 02Vol or 20 of display refered to 68 F or 20 C Cross sensitivities NO2 400 CO 150 H2S 20 C2H4 n d NH3 CO2 Cl2 SO2 HCN 0 1 Expected lifetime 2 years MK396 5 Electrochemical sensor for hydrogen H2 2 GfG part number 1318259 Response time t50 lt 45 seconds t90 lt 90 seconds Pressure 800 to 1 200 hPa Maximum 0 01Vol or 10 of display refered to 1 000 hPa Humidity 15 to 90 r h Maximum 0 01Vol or 10 of display refered to 50 r h Temperature 4 to 122 F 20 to 50 C Maximum 0 02Vol or 25 of display refered to 68 F or 20 C Cross sensitivitie
3. 15 Bump Test 16 Calibration 16 Inspection 17 Time 17 Options 18 Latching Alarm Function 18 Sensor Enable 18 AutoCal Air 19 AutoCal Gas 19 Sensor Menu 19 Zeroing Adjust Zero Point 20 Calibration 21 Alarms Adjust Alarm Thresholds 22 Calibration Dates 22 Information 23 CH4 Unit 23 Activate Lights 23 Replacing the Batteries and the Rechargeable Battery Pack Module 23 Charging the Optional NiMH Battery Pack 24 Cleaning 24 Maintenance and Inspection 25 Service Repair 25 Sensor Types and Detection Ranges 27 Sensor Specifications 28 Technical Data 31 Caution 32 Warranty 33 Table of Contents 1 Introduction For Your Safety Like any piece of complex equipment the GfG G460 will do the job it is designed to do only if it is used and serviced in accordance with the manufacturer s instructions CAUTION For safety reasons this equipment must be operated and serviced by qualified personnel only Read and understand the instruction manual completely before operating or servicing this device The warranties made by GfG with respect to the product are voided if the product is not used and serviced in accordance with the instructions in this manual Please protect yourself and your employees by following them The above does not alter statements regarding GfG s warranties and conditions of sale and delivery Ap
4. D Contact an authorized GfG service center or distributor for assistance The anti lazy battery procedure is initiated by following these steps 1 Press and hold the Reset button until Main menu choices appear 2 Select Options you will need to arrow down the list to select it 3 From the Options menu choose Anti Lazy Batt 4 Press Change to turn on the one time deep discharge feature 5 Display will show 1X instead of Off to the right 6 Press Exit then Detect to return the instrument to normal operation NOTE Do not turn the instrument off 7 Allow it to run until the battery is completely drained then recharge as normal If you have the latest version of firmware on the instrument and the latest version charger cradle and power adapter when the battery icon shows it is down to the last 10 remaining voltage the instrument can be placed in the charger and the instrument will complete the anti lazy battery deep discharge then charge normally NOTE The instrument needs to be programmed for automatic activation To set the instrument for automatic activation follow steps 1 through 4 above then follow these steps 5 Choose Days 6 Select Anti Lazy days you will need to arrow down the list to select it 7 Press Change 8 Select the desired days for the automatic activation of this feature 9 Select Exit twice then Detect to return the i
5. the physical location of the G460 2 User user identity 3 Datalogger adjust datalogger function 4 Confidence blip adjust intervals 5 Service start service menu 6 AutoCal 7 Options adjust alarm volume and display contrast The keys functions are explained in the bottom line of the display In the main menu the keys have the following functions Left key scroll down Middle key SELECT select menu point Right key DETECT back to detection mode Location Entering a Location From a deposited table one location out of a hundred possible locations can be selected The first two digits stand for the number of the table entry With the exception of 00 all other 99 entries can only be edited with a PC Within 00 up to 15 letters figures can be entered which will be stored as operational place in the G460 Entry is automatically completed when the cursor reaches the end mark gt When Location is selected by the middle key SELECT the following is displayed and the keys have the following functions First a location number is specified EDIT Change location name EXIT Back to main menu Change location number 10 After selecting a location number by pressing the right key the location entry will be displayed To change the location press the left key EDIT The following is displayed and the keys have the following functions ABC Select sy
6. 1194 Oak Valley Dr Ste 20 Ann Arbor MI 48108 USA 800 959 0329 734 769 0573 www goodforgas com Multi gas Detector G460 Operations Manual GfG Products for Increased Safety Congratulations on your purchase of a high technology product from GfG you have made an excellent choice Our detectors are characterized by reliability safety peak performance and economic efficiency They comply with national and international directives This manual will help you operate the detector quickly and safely Please take note of these instructions before putting the device into operation If you have any questions please feel free to contact us GfG Instrumentation Inc 1194 Oak Valley Drive Ste 20 Ann Arbor MI 48108 USA Phone 800 959 0329 or 734 769 0573 Fax 734 769 1888 E mail info gfg inc com Website www gfg inc com Introduction 1 For Your Safety 1 Application and Purpose 1 Design 2 Operation 3 Detection Mode 3 Turning the Device Off 5 Display Illumination 5 Individual Gas Display Rotating the Display 5 Battery 6 Alarms 6 Resetting Latching Alarms 7 STEL TWA Maximum Minimum Values 8 Peak Adjusting Peak Values 8 Service Mode 8 Main Menu 9 Location Entering a Location 9 User Entering User Name 10 Datalogger 11 Datalogger sample screen shots 12 Confidence Blip 13 Options 14 Service Menu 14 System Menu
7. both a visual red alarm LED and an discharged battery symbol in the display and an audible warning Alarms If the measured gas concentration exceeds a pre set threshold the detector immediately gives audible visual and vibrating alarms The display also indicates the exceeded alarm threshold which caused the alarm A loud acoustic alarm 103 dB at 30 cm bright flashing LEDs and a vibrating alarm warn of dangerous gas concentrations In case of a gas alarm the whole display turns orange or red depending on the gas concentration and the exceeded alarm threshold The G460 provides three instantaneous alarms for oxygen O2 and combustible gases CH4 and two alarms for toxic gases CO H2S The G460 warns the user of dangerous conditions caused by oxygen deficiency or enrichment and levels of combustible and toxic gases which exceeds the alarm threshold 7 For toxic gases there is an additional alarm for exceeded time weighted averages and short term exposure levels TWA and STEL Alarm Type Sensors Number of Alarms Description Instantaneous Value AL Oxygen Combustible gases Toxic gases 3 3 2 An instantaneous alarm is activated immediately if the gas concentration exceeds or falls below a pre set threshold The alarm values are adjustable Short Term Value STEL Toxic gases 1 The short term value STEL is the average concentration over a short period of time e g 15 minutes The STEL alar
8. ck to Alarm menu Increases alarm value by one unit WARNING If alarm points are set to off the user will not be notified of an alarm condition This could result in injury or death Calibration Dates Within the sensor menu point Calibration dates the date of the last calibration can be displayed as well as if the calibration was successful or not 23 Information In this menu point specific information for the sensor can be displayed Type of sensor ID Type of sensor Serial number SN Serial number Detection range NR Detection range Temperature range TR Temperature range CH4 Unit A unit equipped with a CH4 sensor has an additional Unit and gas menu point in which you can set the CH4 sensor to detect in LEL or volume along with a variety of combustiable gases Activate Lights The G460 provides an optional battery pack with lights The lights can be switched on or off by holding down the left key for approximately 5 seconds The lights are useful when the device is tied to a cord and lowered down into a sewer system Using the lights can prevent the device from being dunked under water Replacing the Batteries and the Rechargeable Battery Pack Module NOTE Batteries must not be replaced in hazardous locations Replace only in non hazardous locations Turn the detector off before you replace the batteries To replace the batteries or the supply
9. e is found to be defective provided that the product is returned by the purchaser to GfG s factory intact for our examination with all transportation costs prepaid and provided that such examination reveals in our judgment that it is defective This warranty does not extend to any products that have been subjected to misuse neglect accident or unauthorized modifications nor does it extend to products used contrary to the instructions furnished by us or to products that have been repaired or altered outside of our factory No agent or reseller of GfG Instrumentation may alter the above statements GfG Instrumentation Inc 1194 Oak Valley Dr Suite 20 Ann Arbor MI 48108 USA US Canada 800 959 0329 US Canada Fax 734 769 1888 International 1 734 769 0573 International Fax 1 734 769 1888 Website www goodforgas com Worldwide Manufacturer of Gas Detection Solutions 2014 7004 460 Rev 7 02 14
10. e kit includes 6 screws and hex key 4003 450 Battery pack alkaline without batteries with vibrator 1450 202 Battery pack rechargeable NiMH with vibrator 1450 211 Battery pack rechargeable NiMH with vibrator and lights 1450 212 Cable data downloading USB interface for PC 1650231 Calibration adapter with tubing 7771 450 Calibration connector 1450225 Charger plug in 110 VAC wall pack for use with drop in charger 4001 650 Charger vehicle 4001 650V Crocodile clip 943450 Datalogging kit alkaline cable software and drop in cradle charger 1450235 Datalogging kit rechargeable cable and software 1450235R Drop in cradle charger charge and data transfer 1450220 Regulator for aluminum calibration gas cylinders 0 5 lpm fixed flow rate with pressure gauge and on off knob 2603 025 Regulator for steel calibration gas cylinders 0 5 lpm fixed flow rate with pressure gauge and on off knob 2603 020 Sensor carbon monoxide CO 0 500 ppm 1318232 Sensor hydrogen sulfide H2S 0 100 ppm 1318236 Sensor methane CH4 combustible gases 0 100 LEL 1460710 Sensor oxygen O2 0 25 volume 1318231 Sensor COSH CO H2S 0 300 ppm 0 100 ppm 1650730 Sensor PID 0 2 000 ppm 1460704 Software datalogging CD only 1450233 Spare parts and accessories should be stored at ambient temperatures of 32 to 86 F 0 to 30 C Storage time should n
11. e prevents important functions from being changed by mistake or by unauthorized persons In service mode all alarms are suppressed 15 ABC Previous digit lt lt gt gt Enter cursor moves automatically to the next position By holding the key the last entry will be deleted and the cursor will move one position back 012 Next digit After entering code 0011 you enter the service menu see System Menu and can perform general adjustments zeropoint span alarms calibration etc Select Sensors to adjust sensor specific functions alarms calibration etc DETECT Back to detection mode System Menu Within the System menu the following adjustments are possible Bump Test Date of next bump test Calibration Date of next calibration Inspection Date of next inspection Time Date and time Options Change language vibrating alarm latch and auto save settings Sensor Enable Turn sensors on or off AutoCal Air Enable AutoCal to zero specific sensors AutoCal Gas Enable AutoCal to adjust the sensitivity of specific sensors Information Software version instrument serial number battery type etc 16 Bump Test The date of the next bump test can be entered under the Bump Test menu When the date arrives the G460 will automatically sound an alarm If the bump test date passes the G460 will give a reminder every time it is s
12. ence blip menu point the interval between confidence blips can be chosen The confidence blip can be heard in intervals of 15 to 90 seconds or be deactivated Scroll down SELECT Confirm interval EXIT Return to main menu 14 AutoCal The AutoCal menu point can be selected in the main menu or occurs automatically when the calibration adapter Smart Cap is connected Within the AutoCal menu point the device can be calibrated with fresh air ZERO or test gas CAL AIR AutoCal with fresh air GAS AutoCal with test gas EXIT Back to main menu Options Within Options you can adjust Anti Lazy battery syndrome The buzzer volume 90 dB or 103 dB The screen contrast 1 very low up to 15 very high Scroll down CHANGE Change selected parameter EXIT Back to main menu Note Rechargeable batteries inherently have a tendency to loose capacity over time Some of this loss manifest itself as voltage depresion aka Lazy Battery With GfG s advanced battery management technology some of the lost capacity can be restored using the Anti Lazy Battery feature The overall battery life can be extended if this feature is used at least once every three months Service Menu Enter the service menu by selecting Service Within the service menu the G460 program parameters can be adjusted This menu point is only accessible with the code 0011 The cod
13. gas type 2 or 3 instantaneous and 2 dosimeter alarms low battery alarm Visual and audible warning and display indication coloring of display depending on alarm status orange red Buzzer 103 dB can be restricted to 90 dB Climate conditions for operation 4 to 122 F 20 to 55 C 5 to 95 r F 70 to 130 kPa for storage 13 to 122 F 25 to 50 C 5 to 95 r F 70 to 130 kPa recommended 32 to 86 F 0 to 30 C Zero point and sensitivity calibration Manual or automatic with calibration program Operational time Up to 25 hours Power supply 1 NiMH battery module rechargeable Im 1 A maximum charging current Um 30 VDC maximum voltage or 2 Alkaline battery module non rechargeable with 2x size AA Duracell MN1500 LR6 Casing Material Rubberized plastic Dimensions 4 3x3 0x2 2 inches 110x75x55 mm HxWxD Weight 10 23 oz 290 g Protection IP 67 Approvals CSA Approval cCSAus Class I Division 1 Group A B C and D Hazardous locations Temp code T3 CSA C22 2 No 152 ANSI ISA 12 13 01 2000 33 Caution Substituting components may hinder intrinsic safety For safety reasons this equipment must be operated and serviced by qualified personnel only Read and understand the user manual completely before operating or servicing this device Do not use the detector if it is damaged Before you use the detector inspect the case Look for cracks or miss
14. ge in quick charge mode Then the Drop in Charger will automatically switch to trickle charge mode so that it is impossible to overcharge the battery pack Both charging modes are indicated on the G460 s display When the charger changes to trickle charge mode the battery pack has reached at least 80 of its capacity An additional 2 3 hours of trickle charge will fully charge the detector The G460 will keep charging as long as it is plugged into the charger Charging can be stopped by removing the G460 from the Drop in Charger or by unplugging the charger Cleaning The casing can be cleaned with a damp cloth Never use solvents or detergents 25 Anti lazy Battery Deep Discharge Cycle NiMH batteries can develop voltage depression Even though the normal amount of power is stored in the battery the peak voltage in lazy batteries drops more quickly than usual To the user it appears the battery is not holding its full charge Fully charged instruments that fail to operate for the expected time should be exercised by means of the anti lazy battery deep discharge cycle G450 instruments with version 3 41 and higher firmware have the enhanced anti lazy battery feature GfG recommends updating your instrument firmware and updating to the latest version charger cradle and power adapter to take full advantage of the latest anti lazy battery options The latest version has a blue case and the serial number ends with a
15. ing parts If the detector is damaged or something is missing contact GfG Instrumentation Inc immediately Calibrate the detector before first time use and then on a regular schedule depending on use and sensor exposure to poisons and contaminants GfG recommends that you bump test the sensors before each use to confirm their ability to respond to gas To do this expose the detector to a gas concentration that exceeds the alarm set points Manually verify that the audible and visual alarms are activated Calibrate if the readings are not within the specified limits It is recommended that the combustible sensor be checked with a known concentration of calibration gas after any known exposure to catalyst contaminants poisons sulfur compounds silicon vapors halogenated compounds etc The combustible sensor is factory calibrated to 50 LEL methane If monitoring a different combustible gas in the LEL range calibrate the sensor using the appropriate gas High off scale readings may indicate an explosive concentration Only the combustible gas detection portion of this instrument has been assessed for performance by CSA International Protect the combustible sensor from exposure to lead compounds silicones and chlorinated hydrocarbons Although certain organic vapors such as leaded gasoline and halogenated hydrocarbons may temporarily inhibit sensor performance in most case
16. iod of time which is determined by the short term period Short term exposure levels are used to evaluate exposure peaks The short term period is typically set to 15 minutes TWA The time weighted average TWA is the average value of the gas concentration over an 8 hour working shift For calculating the total dose the G460 uses all gas levels measured since the detector was turned on MIN MAX Minimum and peak values measured since the detector was switched on or since the stored values were reset Press ZOOM briefly to view one gas at a time ZOOM mode Pressing ZOOM momentarily while in ZOOM mode will cycle to the next detected gas 6 To read the stored values press and hold the right key while in zoom mode Press the key repeatedly to display all other measurement values and the battery capacity one after the other Example Zoom Display for H2S Top left Maximum value Top right Actual gas concentration Bottom left Short term exposure level STEL Bottom right Time weighted average TWA Battery A fully charged G460 battery pack has a capacity of up to 25 hours of continuous operation in diffusion mode The operational time may be reduced by sampling intervals or alarms The remaining battery capacity is indicated by the battery symbol on the left side of the display The black area represents the remaining capacity When the capacity falls to 4 power save mode is displayed and the G460 gives
17. m is not latching it resets automatically as soon as the concentration falls below the threshold Long Term Value TWA Toxic gases 1 The long term value TWA refers to an 8 hour shift and calculates the average concentration The TWA alarm cannot be reset It is only de activated if the detector is switched off Over Range All 1 The screen will display Under Range All 1 The screen will display Resetting Latching Alarms When alarm 2 and 3 are set to latching you must reset an activated alarm by pressing the RESET key Alarm 1 will automatically reset when the gas danger has passed If the detection range of the LEL sensor is exceeded the display will read indicating it is over range instead of a value for gas concentrations above 110 LEL To protect the sensor from damage the device turns off the sensor However the audible and visual alarms and the message remain active The alarms must be reset by pushing the RESET key The display will read Fresh air If you have made sure that there is no combustible gas in the vicinity of the CH4 sensor press yes to resume detection 8 STEL TWA Maximum Minimum Values When you turn the G460 on the unit begins to measure continuously in diffusion mode All concentrations are shown on the display In addition short term and long term averages STEL and TWA are calculated for toxic gases for non toxic gases peak and minimum values MAX and MIN a
18. mbol move down lt lt gt gt Enter the blinking letter for figure and move the cursor to the right 012 Select symbol move up User Entering User Name From a deposited table one entry out of ten possible entries can be selected The first two digits stand for the number of the table entry Except for 00 the other 9 entries can only be edited with a PC Within 00 up to 15 characters can be entered which will be stored as IDENTIFICATION in the G460 Entry is automatically completed when the cursor reaches the end mark gt The entry process for user name ID is the same as that of the location entry EDIT Change location name EXIT Return to main menu Change identification number 11 Datalogger Within the datalogger menu point different settings can be accessed Full shows the used percentage of the datalogger memory Jump to the next parameter ERASE Deletes data A security prompt will appear delete data confirm with yes right key deny with no left key EXIT Back to main menu If Mode is selected the instantaneous value Instant average value Average or peak value Peak can be chosen with the left or right key If Interval is selected the data recording interval can be set between 1 second and 60 minutes by pressing and 12 Datalogger sample screen shots 13 Confidence Blip Within the Confid
19. module unscrew the two screws on the front of the detector and pull the whole module backwards or insert the allen wrench through one of the screw holes to push the module backwards When the alkaline batteries have to be replaced use a thin object to push the two battery cells out through the PCB holes When inserting new batteries check for the correct polarity see plastic holder Use only size AA batteries Duracell MN1500 LR6 Secure the supply module by replacing the two screws 24 Charging the Optional NiMH Battery Pack WARNING The detector must not be charged in a hazardous location Only charge in non hazardous atmospheres of 4 to 122 F 20 to 50 C Charge the detector using only the recommended charging adapter Do not use any other charging adapter as a fire or an explosion may result Do not connect the charging adapter to voltages other than those used in North America or an explosion may result The rechargeable G460 battery pack module can be charged with the GfG Drop in Charger The Drop in Charger is also available as a vehicle charging unit Make sure the maximum connected voltage does not exceed 30 V To charge the G460 simply slide the device into the charging unit The G460 will beep and then display either quick charge or trickle charge These two modes indicate the charge status of the G460 When the rechargeable battery pack is completely depleted it will take approximately 6 hours to rechar
20. nstrument to normal operation 26 Maintenance and Inspection Maintenance includes service calibration and adjustment as well as repair if it is necessary Gas monitoring devices can react differently depending on environmental conditions It is important independent from maintenance duties to test the device before putting it into operation each day Bump testing before each use is highly recommended Service Repair WARNING To avoid personal injury or damage to the detector use only the specified replacement parts A function test must be executed before the first operation and at least once a year This test comprises depending on use and sensor exposure to poisons and contamination Check zero point Charge battery optional Check pump optional and diffusion inlets Test display with standard test gas bump test and adjust if necessary Check alarm signals Test response time NOTE GfG recommends that you bump check the sensors before each day s use to confirm their ability to respond to gas by exposing the detector to a gas concentration which will exceed the alarm set point of the sensor Any G460 repair must be done according to the manufacturer s instructions and with genuine spare parts Return to GfG for proper service 27 Accessories and Replacement Parts Part Number Aspirator hand with wand 7711 450 Batteries alkaline AA 4002 001 Battery hardwar
21. ot be longer than 5 years Electrochemical sensors should not be stored for more than 6 months When you store oxygen sensors be aware that storage reduces the expected lifetime of the sensor When storing spare sensors make sure that the ambient atmosphere is free from corrosive substances and sensor poisons 28 Sensor Types and Detection Ranges Warning To avoid personal injury use only sensors specifically designed for this detector Plug Sensor Part Number Detection Range Gas Resolution T Band EC1 1650730 0 500 ppm 0 100 ppm Carbon monoxide CO Hydrogen sulfide H2S 1 ppm 0 5 ppm 3 ppm 0 2 ppm EC1 EC2 EC3 1460232 1460235 1460018 1460231 1460258 1460260 1460259 1460236 0 300 ppm 0 1000 ppm 0 2000 ppm 0 25 volume 0 2000 ppm 0 1 00 volume 0 4 00 volume 0 100 ppm Carbon monoxide CO Carbon monoxide CO Carbon monoxide CO Oxygen O2 Hydrogen H2 Hydrogen H2 Hydrogen H2 Hydrogen Sulfide H2S 1 ppm 1 ppm 1 ppm 0 1 volume 2 ppm 0 01 volume 0 01 volume 0 1 ppm 3 ppm 5 ppm 4 ppm 0 3 volume 50 ppm 0 02 volume 0 05 volume 0 2 ppm EC2 EC3 1460238 0 50 ppm Nitrogen Dioxide NO2 0 2 ppm 0 6 ppm PID EC2 1460703 1460704 0 500 ppm 0 2000 ppm Isobutylene C4H8 Isobutylene C4H8 0 1 ppm 0 5 ppm 0 2 ppm 1 0 ppm PL 1460710 0 100 LEL 0 100 LEL Methane CH4 Propane C3H8
22. plication and Purpose The G460 is a handheld detector for personal protection from atmospheric hazards The detector measures continuously in diffusion mode and gives visual and audible alarms if a gas induced danger arises The G460 meets the following approval Classified as intrinsically safe for use in Class I Division 1 Group A B C and D Hazardous locations Temp code T3 CSA C22 2 No 152 ANSI ISA 12 13 01 2000 UL 913 2 Design Hook for carrying strap Display Keys Diffusion inlets Contacts for accessories Alarm LEDs Screw connectors for pump Battery pack accessible from back of unit Horn 3 Operation GfG recommends frequent verification of accuracy The safest course of action is to verify accuracy with a known concentration of gas prior to each day s use If the readings are less than 90 or greater than 120 10 to 20 accuracy the detector must be calibrated before use In compliance with c CSA Canada the following requirements must be observed CAUTION Before each use sensitivity must be tested on a known concentration of CO H2S and combustible gas depending on which sensors are installed equivalent to 25 to 50 of the full scale concentration Accuracy must be within 0 to 20 of the actual measurement Accuracy may be corrected by performing an AutoCal adjustment see calibration Detection Mode Turning the Device On Turn the G460 on in an environment kno
23. program Exit Return to service Menu Sensor Menu The following functions refer to individual sensors in the G460 In the sensor menu each individual sensor can be selected The adjustments are only valid for the selected sensor For a description of sensor specific adjustments the O2 sensor is being used as an example The adjustment options are the same for all sensors Move to next sensor SELECT Select sensor Exit Return to service Menu 20 For each sensor the following adjustments can be made Zero Adjust the zero point Calibrate Sensitivity calibration with test gas Alarms Adjust alarm thresholds Calibration dates View the date and status of the last calibration and zero Information View sensor information Move to next menu point SELECT Select menu point EXIT Return to service menu Zeroing Adjust Zero Point To adjust the zero point the sensor menu point Zero must be selected START Start zero point adjustment GAS Enter zero gas concentration EXIT Back to O2 menu After entering GAS the display reads Zero gas value decreases by one unit EXIT Enter Value Zero gas value increased by one unit NOTE To set the zero point for oxygen supply the unit with 100 nitrogen through a calibration adapter 21 Calibration During calibration the sensitivity of the G460 is adjusted Before
24. re stored The stored values can be read from the display by accessing the applicable display mode WARNING To avoid possible personal injury do not turn off the detector during a work shift TWA STEL and MAX readings are reset when the G460 is turned off Peak Adjusting Peak Values During peak mode activated by pressing the left key PEAK peak values can be monitored and displayed The display shows an animated symbol in the bottom left corner Within zoom display the peak value will be displayed instead of the gas concentration Pressing RESET during peak mode will reset the peak memory to the current gas concentration Pressing RESET during zoom display will reset the peak memory and the peak value memory to the current gas concentration By pressing PEAK again peak mode is deactivated Service Mode Hold the middle key RESET for approximately 5 seconds to activate service mode In the service mode the program parameters of the G460 can be adjusted and changed A menu highlights the different adjustment possibilities Several menu points require an access code 0011 to prevent accidental modification of important functions In service mode all alarms are deactivated All adjustments in service mode are menu controlled The 3 keys stand for 9 the function which is shown in the bottom line of the display The main menu is displayed first when you enter service mode Main Menu The menu points are 1 Location
25. red to 68 F or 20 C Cross sensitivity H2S lt 3 C2H4 lt 60 NO lt 35 NO2 lt 10 H2 lt 10 SO2 0 1 Expected lifetime 3 years MK376 5 Electrochemical sensor for oxygen O2 GfG part number 1318231 Response time t50 lt 10 seconds t90 lt 20 seconds Pressure 800 to 1 200 hPa Maximum 0 2Vol or 2 5 of range refered to 1 000 hPa Humidity 15 to 90 r h Maximum 0 2Vol or 2 5 of range refered to 50 r h Temperature 4 to 122 F 20 to 50 C Maximum 0 5Vol or 2 5 of display refered to 68 F or 20 C Expected lifetime 3 years MK380 5 Electrochemical sensor for carbon monoxide CO and hydrogen sulfide H2S COSH GfG part number 1650730 Response time t50 lt 15 seconds t90 lt 45 seconds Pressure 800 to 1 200 hPa Maximum 3ppm or 7 CO reading or 10 CO reading refered to 1 000 hPa Humidity 15 to 90 r h Maximum 3ppm or 7 CO reading or 10 CO reading refered to 50 r h Temperature 4 to 122 F 20 to 50 C Maximum 3ppm or 15 display refered to 68 F or 20 C Cross sensitivities CO portion H2S 0 40 H2 20 SO2 lt 20 NO2 lt 2 NO lt 0 3 Cl2 0 1 Cross sensitivities H2S portion CO lt 2 NO2 20 SO2 8 20 NO lt 3 H2 0 03 Cl2 0 1 Expected lifetime 3 years MK396 5 Electrochemical sensor for hydrogen H2 2 GfG part number 1318258 Response time t50 lt 30 seconds t90
26. s H2S 220 C2H4 n d NH3 CO2 CO Cl2 HCN NO NO2 0 1 Expected lifetime 2 years MK429 5 6 Electrochemical sensor for hydrogen sulfice H2S GfG part number 1318236 Response time t50 lt 15 seconds t90 lt 45 seconds Pressure 800 to 1 200 hPa Maximum 2ppm or 10 of display refered to 1 000 hPa Humidity 15 to 90 r h Maximum 2ppm or 10 of display refered to 50 r h Temperature 14 to 104 F 10 to 40 C Maximum 2ppm or 10 of display refered to 68 F or 20 C Temperature 4 to 122 F 20 to 50 C Maximum 2ppm or 15 of display refered to 68 F or 20 C Cross sensitivities SO2 20 NO2 lt 20 CO lt 1 NO lt 0 2 H2 lt 0 1 1 Expected lifetime 3 years 1 Displayed value with reference to the supplied gas concentration 2 Not approved for LEL monitoring for applications of primary explosion protection 32 Technical Data Type G460 Detection principle Electrochemical EC toxic gases and oxygen Catalytic combustion CC combustible gases and vapors up to 100 LEL Infrared IR Carbon dioxide Detection range See Sensor Type and Detection Range Response time t90 See Sensor Specifications Expected sensor life 3 years Gas supply Diffusion Display Illuminated full graphic LCD automatic size adjustment for optimal read out battery capacity display gas concentration as instantaneous and peak value Alarm Depending on
27. s the sensor will recover after calibration For use only in hazardous locations where oxygen concentrations do not exceed 20 9 volume v v Any rapidly increasing reading followed by a declining or erratic reading may indicate a gas concentration beyond the upper scale limit which may be hazardous 34 Extended exposure of the G460 to certain concentrations of combustible gases and air may stress detector elements which can seriously affect the device s performance If an alarm occurs due to a high concentration of combustible gases recalibration should be performed or if needed the sensor replaced Do not test the combustible sensor s response with a butane cigarette lighter doing so can damage the sensor Do not expose the detector to electrical shock and or severe continuous mechanical shock Do not attempt to disassemble adjust or service the detector unless instructions for that procedure are contained in the manual and or that part is listed as a replacement part Electromagnetic interference EMI signals may cause incorrect operation of this detector Warranty GfG Instrumentation warrants our products to be free from defects in material and workmanship when used for their intended purpose and agrees to remedy any such defect or to furnish a new part at the option of GfG Instrumentation in exchange for any part of any product that we manufacture that under normal us
28. sensor for carbon dioxide CO2 GfG part number 1460780 Response time t50 lt 20 seconds t90 lt 60 seconds Pressure 800 to 1 200 hPa lt 1 7 of display per 1 pressure change refered to 1 000 hPa Humidity 0 to 90 r h Maximum 0 10Vol or 10 of display refered to 50 r h Temperature 4 to 122 F 20 to 50 C Maximum 0 10Vol or 10 of display refered to 68 F or 20 C Expected lifetime 6 years MK348 5 Electrochemical sensor for nitrogen dioxide NO2 GfG part number 1318238 Response time t90 lt 30 seconds Pressure 800 to 1 200 hPa Maximum 0 3 ppm or 5 of display refered to 1 000 hPa Humidity 15 to 90 r h Maximum 0 3 ppm or 5 of display refered to 50 r h Temperature 4 to 122 F 20 to 50 C Maximum 0 3 ppm or of display refered to 68 F or 20 C Cross sensitivity Cl2 100 H2S 8 CO SO2 NO 0 1 Expected lifetime 3 years 30 MK369 5 6 Electrochemical sensor for carbon monoxide CO GfG part number 1318232 Response time t50 lt 10 seconds t90 lt 30 seconds Pressure 800 to 1 200 hPa Maximum 3 ppm or 10 of display refered to 1 000 hPa Humidity 15 to 90 r h Maximum 3 ppm or 10 of display refered to 50 r h Temperature 14 to 104 F 10 to 40 C Maximum 3 ppm or 10 of display refered to 68 F or 20 C Temperature 4 to 122 F 20 to 50 C Maximum 3 ppm or 15 of display refe
29. starting calibration make sure that the zero point adjustment has been done For calibration you need a suitable test gas e g Detection Range Test Gas TOX Carbon monoxide CO hydrogen sulfide H2S OX Fresh air or test gas with 20 9 volume oxygen O2 in nitrogen N2 EX Methane CH4 NOTE Please call GfG for the correct calibration gas for your instrument To adjust sensitivity the sensor menu point Calibrate has to be selected START Start calibration GAS Enter calibration gas concentration EXIT Return to O2 Menu After entering GAS the display reads Decreases calibration gas value by one unit EXIT Saves value Increases calibration gas value by one unit 22 Alarms Adjust Alarm Thresholds The G460 provides 3 alarm thresholds for each non toxic gas O2 CH4 For each toxic gas H2S CO the G460 provides 2 alarm thresholds The alarms are triggered when the gas concentration exceeds or falls below the threshold For toxic gases an additional alarm for exceeded long term and short term averages can be set After selecting the sensor menu point Alarms the following reading is displayed here for an O2 sensor Scroll down EDIT Change alarm threshold EXIT Back to O2 menu After selecting the alarm thresholds by pressing EDIT e g Alarm 1 the value can be entered Decreases alarm value by one unit EXIT Ba
30. ter SELECT Selects the blinking parameter EXIT Back to system menu Latching Alarm Function The detector is shipped with the latching alarm function disabled If the alarms are set to latch the audible and visual alarms will persist until the alarm is acknowledged by pressing the center key RESET To enable latching alarms press the left key until Latching is highlighted Press the center key CHANGE to enable latching alarms Sensor Enable Each individual sensor can be activated or deactivated for each measurement This function is necessary for applications in which a gas does not need to be measured or if the G460 will be upgraded with different sensors ON or OFF indicates the status of the sensor active or inactive Scroll down On Off Turns sensor on or off Exit Return to system Menu 19 AutoCal Air This menu point is to enable AutoCal for sensors using fresh air zero calibration Generally all sensors will be zero calibrated and show ON Scroll down to next sensor On Off Calibration non calibration of sensor in AutoCal program Exit Return to service Menu AutoCal Gas This menu point is to enable AutoCal for sensors using a test gas gas calibration Generally all sensors except O2 will be calibrated and show ON Scroll down to next sensor On Off Calibration non calibration of sensor in AutoCal
31. witched on To change the interval Decreases value EXIT Confirms value Increases value Calibration The date of the calibration can be entered under the Calibration menu When the date arrives the G460 will automatically sound an alarm If the calibration date passes the G460 will give a reminder every time it is switched on To change the inverval Decreases value EXIT Confirms value Increases value 17 Inspection The date of the next maintenance or inspection can be entered under the Inspection menu When the date arrives the G460 will automatically sound an alarm If the inspection date passes the G460 will give a reminder every time it is switched on gt gt Moves to the next parameter SELECT Selects the blinking parameter EXIT Back to system menu To change a parameter Decreases value EXIT Confirms value Increases value Time The time and date can be adjusted under the Time Menu gt gt Moves to the next parameter SELECT Selects the blinking parameter EXIT Back to system menu To change a parameter Decreases value EXIT Confirms value Increases value 18 Options In the Options menu point the language can be changed the vibrating alarm can be activated or deactivated and the latching and auto save features can be turned on or off gt gt Moves to the next parame
32. wn to be free from gases and or vapors Press the right key to turn the G460 on After turning the G460 on the display gives a short message about the detector the user the location this message can be set in service mode Should the date for the next inspection pass the G460 gives an audible signal and the display reads Inspection Overdue The display also shows every gas being measured its detection range and the set alarm thresholds 4 NOTE GfG recommends that you bump check the sensors before each day s use to confirm their ability to respond to gas by exposing the detector to a gas concentration which will exceed the alarm set point of the sensors 5 Turning the Device Off To turn the G460 off hold the right key ZOOM for approximately 5 seconds Display Illumination Whenever you press a key or any alarm condition is activated the display illumination turns on It turns off automatically after approximately 10 seconds or when the alarm condition is corrected Individual Gas Display Rotating the Display The display can be rotated 180 by pressing the right and the left keys simultaneously The G460 allows the user to store and display time weighted averages TWA short term exposure levels STEL peak values MAX and minimum values MIN The stored values have the following meanings STEL The STEL short term exposure level is the average value of the gas concentration over a per
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