User Manual - Calibration Technologies
Contents
1. are rated 10 Amps 120 VAC e Always use three conductor insulated stranded shielded copper cable or M i for all sensor cables e Only the fault nn Tn a It will de energize to the alarm ME tate upon sensor fault or loss of power Do not pull sensor wiring with AC power cables This can cause gt ne nlarfarance 9 P e Each relay has a status LED to show the state of the relay During normal e Be sure to land the shield conductors of the sensor cables at the shield operation all LEDs are off except for the green Fault LED terminals of the sensor connectors e Use only the existing conduit hole for connections to the sensor e Bonding between metallic conduit connections is not automatic with the non conductive enclosure Separate bonding must be provided Common Relay Outputs AC Power Wiring e Power should be provided by an accessible circuit breaker GasGuardian 2 Operating and Installation Manual Sensor Wiring 4 20 mA 350 Ohm input impedance e Refer to sensor manual for cable recommendations e Usually 20 3 shielded cable Belden 8772 or equivalent e Length of cable should not exceed 1 500 feet DO D OD D SHLD GND 24V SIG Analog Output Wiring e The analog output is 4 20 mA signal for monitoring by plant PLC or other analog input equipment It is powered by the GasGuardian 2 e Use 2 conductor shielded cable compatible with receiving eguipment Bu p s NY CAD LE E N LI Anal2. C or 120 VAC User Interface LCD illuminated screen Graphic display screen 128 x 64 pixels 8 lines x 22 characters 16 sealed membrane switches Limited Warranty amp Limitation of Liability Calibration Technologies Inc CTI warrants this product to be free from defects in material and workmanship under normal use and service for a period of 2 years beginning on the date of shipment to the buyer This warranty extends only to the sale of new and unused products to the original buyer CTI s warranty obligation is limited at CTI s option to refund of the purchase price repair or replacement of a defective product that is returned to a CTI authorized service center within the warranty period In no event shall CTs liability hereunder exceed the purchase price actually paid by the buyer for the Product This warranty does not include a routine replacement of parts due to the normal wear and tear of the product arising from use b any product which in CTI s opinion has been misused altered neglected or damaged by accident or abnormal conditions of operation handling or use c any damage or defects attributable to repair of the product by any person other than an authorized dealer or contractor or the installation of unapproved parts on the product The obligations set forth in this warranty are conditional on a proper storage installation calibration use maintenance and compliance with the product manual instructions and any ot
3. GASGUARDIAN 2 2 Channel Controller ERATA qam ALIBR GasGuardian 2 Operating and Instruction Manual Table of Contents General description kaaa kaaa kaaa kaaa aaa naa 4 MASAI AMOI nom perem mrene mea 4 Locating the GasGuardian 2 4 Installation guidelines 4 WIND PR o op ee oo 5 A o see tree 7 STALL Ur za ee ee ee locali 7 KeVpadi mae A on arena ener a O T LCD Operator Interface aaa aaa aaa kakaa kaaa kakaa aa aaa aa aaa aaaaao 7 MENU Tee neun een ee o u et 8 Navigating the Menu kaaa aaa aa aaa 9 Normal operating mode aaa kakaa kakaa kaaa kaaa kaaa kaaa nana 9 Channel VIEW ua nei nn Me je Db bel ii peda 9 Val mens es urn Dan 9 E en ro e mrp O 9 Calibration MOdE ccc ccc cece kaka aaa eee ee aaa aaa aaa 9 Last calibration date 10 Contig Meli ib 10 A O ha 11 Contras nee lat 11 A cians aa o 11 Mamienanc e ie os eo soi a a aes ake eae i ja 12 SDEEINEANENS AA S De 12 Wa dc ee A ee mr PE ena 13 Calibration Technologies 866 394 5861 GasGuardian 2 Operating and Installation Manual General Description The GasGuardian 2 is a two channel controller designed to accept two 4 20 mA input signals It provides a regulated 2 2 Amp 24 VDC to power all industry standard 4 20 mA gas transmitters The GasGuardia
4. PM Warn 162 vs ENGINE ROOM a NH3 Fault VENT LINE Chl Ch2 162 Alarm 0 0 PPM Warn Menu 1 of 2 1 Alarm Log 2 Cal Mode 3 Last CAL Date 4 CONFIG Menu Menu 2 of 2 5 Clock 6 Contrast 7 RELAY Test Menu RELAY Test RELAY Test 1 Horn Relay RELAY Test 1 Horn Relay RELAY SET Push lt NO gt to clear and Exit 1 Horn 4 Ch 1 Alarm 2 Fault 5 Ch 2 Warn 3 Ch 1 Warn 6 Ch2 Alarm Push lt YES gt to set relay lt NO gt to Exit CONFIG Menu Password 5861 CONFIG Menu CONFIG Mode 1 CONFIG Ch 1 2 CONFIG Ch 2 Ch 1 State CONFIG Mode Channel1 ACTIVE Ch 1 State CONFIG Mode Channel1 PMAR Ch 1 State CONFIG Mode Chamnel1 WAFA Ch 1 State CONFIG Mode Channel1 NOT ACTIVE Ch 1 Range CONFIG Mode Span 250 Zero 0 Ch 1 Location CONFIG Mode ENGINE ROOM Ch 1 Alarm CONFIG Mode Latch YES Ch 1 Alarm CONFIG Mode Set Point 150 Direction UPSCALE Ch 1 Warn CONFIG Mode Latch NO Horn NO Ch 1 Warn CONFIG Mode Set Point 50 Direction UPSCALE Ch 1 Unit Gas CONFIG Mode Unit PPM Gas NH3 Navigating the Menu Normal operating mode After system power up the normal operating screen will be displayed It provides at a glance system status showing real time gas concentrations In this example channel 1 gas concentration has exceeded the warn and alarm setpoints Channel 2 indicates a fault due to faulty wiring or a sensor sign
5. RESET button once the gas has cleared Horn Allows horn relay and buzzer to activate during a Warn condition Alarm Setpoint Use this field to change the default alarm setpoint Direction Use this field to change the default direction setting For example oxygen level monitoring may require downscale alarming Latch for Alarm Relay Allows alarm relay of channel being programmed to latch once activated A latched relay must be cleared by pressing the RESET button once the gas has cleared Location Name Use this field to name the location of the sensor being programmed To delete the existing label ENTER and then PREV to delete characters ESC to return to Config menu Clock Set current time and date Ch 1 Warn CONFIG Mode Latch NO Horn NO Ch 1 Alarm CONFIG Mode Set Point 150 Direction UPSCALE Ch 1 Alarm CONFIG Mode Latch YES Ch 1 Location CONFIG Mode ENGINE ROOM CLOCK Date 12 29 08 Time 15 28 46 Contrast Adjust contrast to allow for best viewing of LCD Relay Test The relay test menu allows the relay outputs to be tested individually for correct output functions Select the relay to be tested with the alphanumeric keys Press YES to Set relay NO to exit Relay has been set Press NO to clear the relay and exit once the relay output function has been verified ESC back to Config main menu Press YES to save changes Press ESC again to exit without s
6. al less than 1mA The Warn Alarm and Fault indications will flash until the conditions are cleared PREV or NEXT to go to Channel View screens MENU to go to main menu screen Channel view Channel view displays only the status of the channel being viewed It also displays the room zone location Warn Alarm and Fault indications will flash until the conditions are cleared PREV or NEXT to view normal operating screen or next channel view screen MENU to go to main menu screen An over range condition is indicated by flashing of the full scale reading This also indicates that the sensor output is over 20 MA Main Menu The main menu can be accessed by pressing the menu key at any time Use the alpha numeric keys to select a sub menu or NEXT to advance to the next menu screen ESC to return to the normal operating screen Chl Ch2 162 Alarm 0 0 PPM Warn NH3 NH3 Fault Alarm PPM Warn ENGINE ROOM Ch2 NH3 Fault VENT LINE Menu 1 of2 1 Alarm Log 2 Cal Mode 3 Last CAL Date 4 CONFIG Menu Main Menu cont Alarm Log The alarm log captures every event in chronological order with the most recent event displayed first 10 000 events can be stored with the oldest events being automatically truncated once the alarm log is full Time date stamp and event number are also displayed PREV or NEXT to scroll Hold button in for turbo scroll ESC to return to normal operating screen MENU to
7. aving changes GasGuardian 2 Operating and Instruction Manual Contrast Minimum 0 100 Maximum 35 RELAY Test 1 Horn 4 Ch 1 Alarm 2 Fault 5 Ch 2 Warn 3 Ch1 Warn 6 Ch2 Alarm RELAY Test 1 Horn Relay Push lt YES gt to set relay lt NO gt to Exit RELAY Test 1 Horn Relay RELAY SET Push lt NO gt to clear and Exit GasGuardian 2 Operating and Installation Manual Maintenance Specifications All gas detection systems should be calibrated with certified calibration gas AC Power Requirements 120 VAC 1A once every six months At this interval all alarm functions and outputs should DC Power Available For Sensors and connected audio visual devices be tested verified and documented 424 VDC 2 2 A If sensor span or zero cannot be adjusted the sensor may be approaching its Dimensions III MAR AREP end of life and must be replaced Keep an operation log of all maintenance Weight 6 Ibs calibrations and alarm events Enclosure Fiberglass Reinforced Polyester NEMA 4X with polyurethane gasket Continuous stainless steel hinge Captive screws in lid For non To clean the controller use a mild cleaning solution and soft cloth classified areas Temperature Range 0 F to 122 F Humidity Range 0 to 100 condensing with proper conduit seals Sensor Inputs 4 20 mA 350 Ohm input impedance Analog Outputs 2 Linear 4 20 mA max input impedance 700 Ohms Relay Outputs 6 SPDT relays 10A 24 VD
8. f CTI toll free phone number with the alphanumeric keys Enter number 1 or 2 to configure that channel repeat same steps for both channels State Allows for turning on or off a channel For example if a sensor is removed from the system that channel should be changed to NOT ACTIVE To change this programming field press ENTER to highlight the field Last CAL Date 11 20 08 14 50 54 CONFIG Menu Password 5861 CONFIG Menu CONFIG Mode 1 CONFIG Ch 1 2 CONFIG Ch 2 Ch 1 State CONFIG Mode Channel1 ACTIVE Ch 1 State Channel1 Ogg A CONFIG Mode Use up or down arrows to select item Press ENTER to select item Range Allows adjustment of sensor zero and full scale range use alphanumeric keys to enter values Unit Gas Use these fields to change the unit of measurement and gas type Warning Setpoint Use this field to change the default warning setpoint Direction Use this field to change the default direction setting For example oxygen level monitoring may require downscale alarming Ch 1 State Channel 1 Ner xs CONFIG Mode Ch 1 State CONFIG Mode Channel1 NOT ACTIVE Ch 1 Range CONFIG Mode Span 250 Zero 0 Ch 1 Unit Gas CONFIG Mode Unit PPM Gas NH3 Ch 1 Warn CONFIG Mode Set Point 50 Direction UPSCALE Latch for Warn Relay Allows warning relay of channel being programmed to latch A latched relay must be cleared by pressing the
9. her applicable recommendations of CTI b the buyer promptly notifying CTI of any defect and if required promptly making the product available for correction No goods shall be returned to CTI until receipt by the buyer of shipping instructions from CTI and c the right of CTI to require that the buyer provide proof of purchase such as the original invoice bill of sale or packing slip to establish that the product is within the warranty period THE BUYER AGREES THAT THIS WARRANTY IS THE BUYER S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE CTI SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES INCLUDING LOSS OF DATA WHETHER ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT TORT OR RELIANCE OR ANY OTHER THEORY 13 LIBR SPECIALISTS IN LEEREN Gs Denen GG 2 09 2014 v1 13
10. n 2 provides continuous real time monitoring of each sensor The backlit LCD display provides an at a glance status of gas concentrations and alarms The GasGuardian 2 is assembled into a wall mounted enclosure designed for non classified locations The gas sensors one or two are installed at specific locations where gas is to be detected up to 1 500 feet from the controller They are electrically connected to the controller via three conductor cables The onboard relays have 10 second on off time delays to prevent unnecessary cycling during a fault warning or alarm condition All operator functions are performed from the keypad on the front of the panel Installation Locating the GasGuardian 2 The important consideration when installing GasGuardian 2 controller is that it must be easily accessible for operating personnel Installation Guidelines e Mount controller on a solid surface with minimal vibration e Mount controller thru the holes in the mounting flanges e Mount controller in a general purpose location only Do not install in a hazardous environment e Mount controller away from electromagnetic interference e Protect controller from physical damage A 11 3 GasGuardian 2 Operating and Instruction Manual Wiring u Electrical wiring must comply with all applicable codes Relay Wiring e AC wiring must be run in separate conduit from the sensor cables Wiring Guidelines e All relays have Form C dry contacts and
11. nce key will reset the horn relay and silence the buzzer until the next event occurs The horn relay is triggered by a fault or alarm condition and can be programmed to trigger during a warning condition Reset Pressing the Reset key will attempt to reset any latched relays Any latched relays will not reset as long as there s an existing warning or alarm condition The latch relay function can be enabled for each relay in the Configuration menu GasGuardian 2 Operating and Instruction Manual LCD Operator Interface Key Functions Below is a list of the common key functions used for the LCD operations MENU ESC ENTER lt PREV a NEXT p YES NO Alphanumeric Up Down AV to enter main menu to go back to previous menu sub menu to modify the programming fields to go back to previous screen to advance to next screen when prompted and to accept configuration changes for menu selections and to enter values and text to navigate drop down lists during configuration POWERUP Ch2 0 0 NH3 GasGuardian 2 Operating and Installation Manual Menu Tree Alarm Log 12 29 08 16 39 20 Chl ALARM Rly Set 150 ENGINE ROOM PPM 326 Chl CAL pe arm 249 m ENGINE ROOM Alarm Log 12 29 08 16 39 33 HORN Silence 327 CAL Mode Chl Ch2 249 Alarm 0 0 PPM Warn NH3 NH3 Last CAL Date 11 20 08 14 50 54 CLOCK Date 12 29 08 Time 15 28 46 Contrast Minimum 0 100 Maximum 35 Chl Alarm P
12. og Output Wiring dimi rati FAT CH WAER CEH ALARN CHE vau GET ALARM Po Buf E 2 satin Sensor Wiring o Bu naa jaaa naa jana naa SARAR Fower Supply Zu A Z Uiplene ser sao ou UNES AC Power Relay Wiring Wiring Start up Before applying power make a final check of all wiring for continuity shorts grounds etc It is usually best to disconnect external alarms and other equipment from the controller until the initial start up procedures are completed After initial power up allow at least 12 hours for the sensors to stabilize before calibrating Because sensors are normally located at a distance from the controller the test time required and accuracy of the response checks will be improved if two people perform the start up procedures and use radio contact The GasGuardian 2 has a two minute power up delay during which the relays are held in their normal non alarm state after the application of power or a momentary power loss This allows the sensors time to stabilize and disables the alarm functions Start Up Test 1 One person exposes each sensor to target gas 2 The second person stays at the control unit to determine that each sensor when exposed to the gas is connected to the proper input and responds causing appropriate alarm functions Keypad All operator functions are performed from the membrane switches on the front of the panel Silence Key Pressing the Sile
13. return to main menu screen Cal Mode Calibration mode allows for sensor calibration and maintenance by holding the relays in their normal state preventing unwanted alarms If the unit is left in Cal Mode it will stay active for 48 hours and then return to normal operating mode Make sure the concentration values have dropped below the warning and alarm setpoints before exiting ESC to exit from Calibration mode and return to normal operating mode The analog outputs are not affected by calibration mode and are allowed to increase to full scale GasGuardian 2 Operating and Instruction Manual Menu 2of2 5 Clock 6 Contrast 7 RELAY Test Menu Alarm Log 12 29 08 16 39 33 HORN Silence 327 Alarm Log 12 29 08 16 39 20 Chl ALARM Rly Set 150 ENGINE ROOM PPM 326 CAL Mode Chl Ch2 249 Alarm 0 0 PPM Warn NH3 NH3 Chl CAL on PPM ae NH3 ENGINE ROOM GasGuardian 2 Operating and Installation Manual Last CAL Date The last cal date shows the date and time at which the system was last calibrated When six months has transpired from the last cal date a Cal Due flag will appear indicating the sensors need to be calibrated Holding the 6 key and then pressing the 7 key will reset the Cal Date once the sensors are calibrated CONFIG Menu The Configuration menu is password protected to prevent unauthorized personnel from making programming changes to the system Enter the password last 4 digits o
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