DRSA-1100 User Manual
Contents
1. Check that the temperature probe is properly installed fully mated and locked on the plug 22 End of Life Disposal Contemporary electronic assemblies such as this unit contain trace amounts of lead which is harmful to the environment if not properly disposed of Also much of the plastic case is recyclable where facilities exists Digi Cool Industries supports the proper disposal of this product at the end of its service life New companies and initiatives to collect electronic products for disposal are underway around the world Please contact your local waste disposal agency or visit the following Internet sites for more information usa Environmental Protection Agency http www epa gov Electronics Recycling Resources http www clectroniesrecycling org Canada Environment Canada http www ec ge ca 2 Warranty Digi Cool Industries Ltd Limited Two Year Warranty What is covered This warranty covers any defects in materials or workmanship in your new analyzer with the exceptions stated below How long coverage lasts This warranty lasts for 2 years after purchase date Coverage terminates if you transfer ownership of the product to another party during the warranty period What is not covered This warranty does not cover normal wear and tear of the unit in service including but not limited to 1 scratches to the surface finish 2 discharge of the supplied batteries This warranty do2. This warranty is governed by and will be construed in accordance with the laws of British Columbia Canada without reference to any rules of conflict of laws The Courts of British Columbia will have jurisdiction over all claims disputes and actions related to or arising from or out of or in connection with the warranty and the purchased product and Digi Cool and all purchasers hereby irrevocably attorn to the jurisdiction of those courts 26 Service and Support If you experience problems with the use of your analyzer please read the features and troubleshooting sections of this manual Should your analyzer require service you may return it to Digi Cool Industries Contact Digi Cool Industries for a return authorization RA number Once we receive your unit the repaired unit or a replacement will be sent to you within 10 business days Within the continental United States and Canada you can request rapid replacement service for an additional fee We will ship you a replacement unit within 2 business days after which you can return the defective unit to us Before returning the unit for service please remove all attachments and accessories not originally supplied with the analyzer Refrigerant Expansion The unit is upgradeable to support new refrigerants Please visit our Internet site or contact us to inquire about the availability of upgrades for new refrigerants Contact Information Digi Cool Industries L
3. ASHRAE Trade shown Trade RIZ 12 12 R22 2 22 RIGA T34A T34A R290 290 R 290 Propane RAIA 39 MP39 R401B 66 MP66 R402A 30 PRO R402B 3T PST R404A 2 P62 FX 10 R406A 406A 406A 7 GHGI2 R407C 9000 Suva 9000 RASA 10 FX 10 ROJA 56 FX 56 R4I0A 20 AZ 20 R414B 414B HotShot RAGA TIGA FRIGCE FR 12 RATA 59 TSCEON 59 RAZOA 70A 420A R502 502 502 R507 50 AZ 50 R508B 95 Suva 95 R600A 600A 600A Isobutane Ifthe R prefix is visible the ASHRAE reference number is being shown If R prefix is not visible the number shown is the numeric portion of the refrigerant s trade name as shown below The user may change the set of names displayed by holding R 4s during power up The unit has been designed for use with modem HCFC and HFC refrigerants some of which operate at substantial pressures The resolution may be somewhat coarse for work with low pressure refrigerants such as R 11 or R 123 Therefore these refrigerants are not included with the unit Contact the manufacturer if you wish to upgrade your unit to handle these or other refrigerants 6 Hold Time These indicators show how often the digital readings are being updated The ISEC indicator shows that it is updated once every second The SSEC indicator means the digits are updated once every 5 seconds The HOLD indicator means the digits are not being updated 7 Low Battery The indicator will be visible when the batteries should be replaced
4. Digi Cool Industries Ltd Digital Refrigeration System Analyzer DRSA 1100 User manual To take full advantage of your analyzer please read this manual and store in a safe place for future reference Table of Contents Package Contents Features and Use General Proper Use External Features Display Keys Using the Pressure Gauges Using Pressure Recall Modes Using Temperature Modes Specifications Care amp Maintenance Troubleshooting Warranty Limitation of Liability Service and Support Package Contents 1 Digi Cool DRSA 1100 Digital Refrigeration System Analyzer Unit 4 AA Alkaline Batteries installed 1 Phillips Machines Screw spare 2 1 8 90 Street Elbow Fittings 2 1 8 90 Swivel Elbow Fittings 1 Extended Hanging Hook for Manifold 1 User Manual 1 Quick Start Card 1 Product Registration Card Features and Use General The unit performs the following tasks e Sense and display pressures present in the manifold e Calculate and display dew bubble points corresponding to the sensed pressures for the selected refrigerant Sense and display temperature of probe tip Calculate and display system supetheat or subcooling based on sensed pressure and temperature for the selected refrigerant Displays maximum and minimum pressures observed since threshold reset The unit has two 1 8 pressure ports acting as two gauges blue for low side red for high side All settings are controlled thr
5. and swivel fittings 4 Temperature Probe Plug Connect the temperature probe to this port When not in use cover the plug with the sealing cap to maintain water resistance 5 Battery Compartment Door secured using machines screws When properly closed the unit water resistant for operation in the rain 6 Vent Allows for atmospheric and internal pressure adjustment without moisture entry Do not cover this port 7 Temperature Probe The temperature probe can be secured onto piping from 3 8 to 3 in outer diameter 1 to 7 5em with the attached hook n loop strap The connectors are water resistant when mated or when covered by their protective caps For accurate measurements use a piece of pipe insulation over the sensor and pipe to insulate them against the ambient air To install the connector align the key on the plug with the slot on the connector Push connector while wiggling to mate together then tighten the thread on the blue collar to lock connector into place When not in use apply the attached cover to the connector to keep moisture and dirt out The probe comes with a 10 3m long cord 8 Display The display of the unit is very user friendly For users familiar with traditional manifold gauges the readouts should be self explanatory The quantity of information offered to the user is more than any other gauge traditionally available A full understanding of these features allow fo
6. Continuing to use the unit when batteries are low will lead to less accurate measurements 12 8 Multi Functional Field The analyzer operates in several modes depending on user selection Keys PWR Normal Mode Temperature mode display temperature reading in either F or C as selected by UNIT selection Superheat mode display superheat reading in either F or C If temperature reading lower than the low side dew point for the selected refrigerant SH is negative Subcooling mode display subcooling reading in either F or C If temperature reading higher than the high side bubble point for the selected refrigerant SC is negative Maximum pressure recall mode pressure fields display highest pressures sensed since threshold reset and their associated saturation temperatures In this mode the 15 min automatic shutdown is disabled Minimum pressure recall mode pressure fields display lowest pressures sensed since threshold reset and their associated saturation temperatures In this mode the 15 min automatic shutdown is disabled This key turns unit on for a period of 15 minutes Ifit is pressed again while the unit is on the unit will tum off To sable automatic shutdown hold ENG SI while pressing PWR to turn the unit on Pr will be shown on the screen Press ISEC SSEC HOLD to continue Automatic shutdown is disabled when in HI or LO modes Rally These keys select between a
7. accuracy during manufacturing The absolute accuracy of the calibration is traceable to the U S National Institute of Standards and Technology NIST The measurements will perform within the specified accuracy over its life No calibration is necessary If the unit gives erroneous readings please return to the manufacturer for service 20 Troubleshooting Ifthe unit is not performing properly please use this troubleshooting chart Try the listed actions under the appropriate problem in order from top to bottom until the problem is resolved If these steps do not correct the problem please contact the manufacturer for vice ptom Action No display when PWR pressed Increase LCD contrast Ifno response press PWR and try increasing contrast again Check if batteries are installed Install fresh batteries and try again Check polarity of batteries Follow the battery replacement procedures Ifany batteries were left installed in reverse for some time they may be drained Remove the old set wait 30 seconds and install a fresh set Ifthe unit is hot to the touch allow unit to cool and try again Strange characters or patterns seen on display Press ISEC SSEC HOLD to exit from any test mode displays entered accidentally Press PWR to turn the unit off and back on Ifthe unit has been exposed to extreme cold allow unit to warm above 4 F 20 C and try again Ift
8. an accessory not permanently attached to the main unit Digi Cool may elect to service or replace the accessory only or reimburse the value of the accessory Before returning the unit for service please remove all attachments and accessories not originally supplied with the analyzer such as service manifolds How To Get Service In order to be eligible for service under this warranty you MUST register your purchase by returning the registration card attached or registering at our internet site http www digi cool com register within 30 days of purchasing the product If service is required contact the support department at Digi Cool by telephone or visit our internet site for a return authorization RA number The user is responsible for returning the product to Digi Cool Industries or their authorized dealers Fill out the following information and include it when you return the product Properly package the product to prevent damage during shipping Fill out the shipping label on page 27 and affix it to the package Digi Cool Support Telephone 250 748 1783 Internet Site http iwww digi cool com Digi Coo s obligation under this limited warranty is strictly and exclusively limited to the repair or replacement free of charge of such articles found to be defective in material or workmanship or to refund the full purchase price upon the return of the defective article on the condition that the purchaser gives prompt wr
9. e time selected is 14 HOLD the temperature and pressure readout are held at the readings when HOLD was initiated In HI and LO pressure recall modes only ISEC setting is available Regardless of the update period the bar graph updates automatically 4 times per second At the moment that the numeric readout is updated the bar graph will clear itself In this way the bar graph indicates the current deviation from the displayed numeric reading LoD A V These keys increase and decrease the contrast of the LCD display respectively MIN MAX CLR This key clears the memory of the HI and LO pressure recall modes Depress this when you wish to begin a session of minimum and maximum pressure monitoring Depending on the mode selected there may not be any visible effect from this key press MODE This key toggles between the following modes in sequence Normal Mode et Temperature mode e SH Supetheat mode e SC Subcooling mode e HI Maximum pressure recall mode e LO Minimum pressure recall mode not available if temperature probe is not installed 15 Using the Pressure Gauges Once mounted properly onto a service manifold the pressure gauges behave just like traditional needle pressure gauges Usually the low side of the manifold is connected to the low side service port and the high side of the manifold to the high side service port Using Pressure Recall Modes The pressure recall modes are useful when
10. elected Depending on the measurement and sensor contact it takes 30 seconds to 2 minutes for the sensor to settle to the correct temperature reading SH mode The superheat mode is useful when verifying proper operation to safeguard against compressor damage Secure the temperature probe on the compressor suction line Ensure the correct refrigerant is selected If the system is operating properly supetheat should be between 10 to 30 F 5 to 15 C while the compressor is operating steady state If superheat is negative the compressor may be drawing some liquid SC mode The subcooling mode is useful to verify full condensation Some systems required subcooling for proper operation refer to the equipment specifications Secure the temperature probe on the condenser outlet line Ensure the correct refrigerant is selected If subcooling is negative the refrigerant is not completely condensed indicating poor heat rejection Specifications Sensing resolution Low side High side Sensing accuracy Working pressure Low side High side 7 0 25psi 2kPa 0 02bars Ipsi 7 kPa 0 07 bars 0 5 FS 1 least significant digit 0 200psia 1350 kPa 13 5 bars 0 550psia 3000 kPa 37 9 bars Proof pressure Tolerable pressure without intemal damage Low side High side 600psia 4100 kPa 41 bars 1500psia 10300 kPa 103 bars Burst pressure Tolerable pressure without lost of seal Low side High s
11. es not cover the supplied alkaline batteries or damage due to leakage of battery electrolyte Remove batteries from the unit if it will not be used for some time Included refrigerant information is based on data from the U S National Institute of Standards and Technology NIST as expressed by the REFPROP program standard reference database 23 version 7 0 Digi Cool does not guarantee the complete accuracy of encoded refrigerant properties users are advised to use due diligence when interpreting readings from the analyzer Only products purchased from Digi Cool and authorized dealers are covered by this warranty Damage caused by misuse or operation outside of specified limits or purposes or in a non approved manner immersion in liquids user abuse war civil unrest terrorism vandalism fire floods lightning power surges industrial or other accidents or other natural disasters are not covered Refer to Proper Use Specifications and Care amp Maintenance sections of this manual for details on for the proper use and parameters of the analyzer What Digi Cool Will Do Digi Cool will repair any product that proves to be defective in materials or workmanship In the event repair is not possible Digi Cool will either replace your unit with another functional unit of the same model or another with equivalent functionality or refund the full purchase price at the discretion of Digi Cool If the affected part is
12. he unit has been exposed to extreme heat allow unit to cool below 122 F 50 C and try again Remove batteries hold PWR key for several seconds and reinstall batteries Display flashes You may be exceeding the 200psia and 550psia working ranges or selected a refrigerant unsuitable for the current pressure reading Disconnect pressure connection to system press ZERO to recalibrate LCD has dim contrast Press LCD T to increase contrast Replace batteries with a fresh set Display visibly Contact the manufacturer for service cracked Condensation Allow unit to warm to ambient temperature ide display hadnt T Open battery compartment and allow unit to dehumidify in a dry or air conditioned environment for 24 hours Keys do not respond MIN MAX CLR does not give visual results when pressed in modes other than HI and LO but the pressure memory is cleared Contact the manufacturer for service Pressure port loose against case Tighten the speed nut using a deep socket or wrench Do not use excessive force Apply thread lock if desired Mode changes randomly without MODE key press When the temperature probe is installed it automatically enters t mode When the temperature probe is removed it automatically enters normal mode Check that the temperature probe is properly installed fully mated and locked on the plug Cannot access t SH or SC modes
13. ide Temperature sensor range Temperature accuracy Dimension Weight with batteries Battery life Usage environment 2000psia 13500 kPa 135 bars 5000psia 34500 kPa 345 bars 40 to 250 F 40 to 125 C 40 9 F 40 5 C between 32 to 158 F 0 to 70 C 7 3x4 9x2 6 18 5 x 12 5 x 6 Sem 1 6 Ib 7202 approx 6 months with normal use Indoors and outdoors Dew and splash resistant Do not immerse in water Storage and operational temperature 4 F to 12 F 20 C to 50 C 18 Care amp Maintenance General Care Follow these basic precautions to ensure that your analyzer will perform well for years to come e Do not push keys with sharp objects Do not expose the unit to extreme heat or leave in direct sunlight for extended periods of time e Do not leave the unit in contact with water or other fluids for extended periods of time Do not immerse the unit in liquids Do not pull on the temperature probe cord Avoid rapidly heating or cooling the unit Store in a dry location near room temperature away from direct sunlight in a vibration free environment Replacing Batteries The unit is designed for use with 4 AA alkaline batteries They should be replaced as a set Carefully follow all instruetions and warnings on the battery label and package 1 Find a dry low humidity environment preferably at room temperature or lower This will keep condensation from forming in
14. itten notice to Digi Cool 25 of any claim under this warranty period within the two year warranty period and if requested retums the defective articles to Digi Cool Digi Cool will not be liable for or is responsible for any expenses arising from or out of or in connection with repairs or modifications made to its articles using components chemicals materials or methods not approved by Digi Cool by persons not authorized or approved by Digi Cool or without Digi Cool consent or approval Limitation of Liability TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW DIGI COOL SHALL NOT BE LIABLE UNDER ANY CIRCUMSTANCES AND UNDER NO LEGAL THEORY WHETHER IN TORT CONTRACT OR OTHERWISE TO YOU OR ANY OTHER PERSON FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL CONSEQUENTIAL OR PUNITIVE DAMAGES OF ANY KIND INCLUDING BUT NOT LIMITED TO DAMAGES FOR LOST OF PROFITS BUSINESS INTERUPTION OR OTHER PECUNIARY LOSSES WHETHER ARISING FROM BREACH OF ANY EXPRESS OR IMPLIED CONDITION GUARANTEE WARRANTY OR REPRESENTATION OR BASED ON CONTRACT FUNDAMENTAL BREACH NEGLIGENCE OR ANY OTHER THEORY OF LIABILITY IN ANY CASE LIABILITY ARISING OUT OF THE SALE OR USE OF THE PRODUCT WILL NOT EXCEED THE COST OF REPAIR OR REPLACEMENT OF THE PRODUCT Other Applicable Laws As laws vary between jurisdictions you may have additional rights at law which are not mentioned in this warranty In the US you may have rights that vary from state to state
15. nded for use in an industrial or commercial environment Use in a residential environment may cause interference with radio and television reception Proper Use This product is intended for use by trained service personnel only for use with vapor compression refrigeration air conditioning and heat pump systems Servicing of refrigeration systems require special training to ensure the safety of the service person building occupants local and global environment Ensure your service manifold is properly rated for the operational pressures of the analyzer at up to 550psia 3000 kPa 37 9 bars To prevent damage never exceed the proof pressure of the analyzer Low side 600psia 4100 kPa 41 bars High side 1500psia 10300 kPa 103 bars For safe operation ensure that the refrigeration system under test has working overpressure relief equipment installed and that they are rated to trigger below the burst pressures of the analyzer Low side 2000psia 13500 kPa 135 bars High side 5000psia 34500 kPa 345 bars Refer to the instruction manual for your service manifold on its use External Features 1 Display Extended temperature LCD display protected with clear resilient window to prevent damage 2 Keypad Tactile response keypad is easy to operate even with gloved hands 3 Transducer Ports 1 8 NPT ports connect to the gauge ports of various service manifolds using supplied street elbows
16. ough the keypad and affect both sides of the display Using the provided swivel and pivot elbows the unit can install onto most service manifolds available on the market Follow the instructions on the quick start card to install the unit onto your manifold Some features of the unit include Working pressure ranges Low side 0 200psia 1350 kPa 13 5 bar High side 0 550psia 3000 kPa 37 9 bar Sensing resolution precision Low side 0 25psi or 0 4 Hg 2kPa 0 02 bar High side Ipsi 7 kPa 0 07bar Includes profiles for 22 common refrigerants R12 R22 R 134A R 290 R 401A R 401B R 402A R 402B R 404A R 406A R 407C R 408A R 409A R 4I0A R 414B R 416A R 417A R 420A R 502 R 507 R 508B R 600A Dynamic Offset bar graph display Pipe mounted temperature probe for automatic superheat and subcooling readings MAX and MIN pressure monitoring for control set up Zero key automatically calibrates to local atmospheric conditions Large easy to read LCD display e Adjustable LCD display contrast Selectable reading update rates of 1 and 5 seconds or hold current reading Upgradable to handle additional refrigerants Automatic shutdown after 15 minutes of inactivity e Low battery indicator e Tough weather resistant case for indoor outdoor field use Features of the unit are patented in the US 5 311 745 and Canada 2 107 134 by Digi Cool Industries Ltd This unit is inte
17. ph represents changes to each pressure reading since the digits were updated The graphs are updated four times every second They allow the user to monitor pressure dynamics in the system closely Each segment in the low side bar graph represents 4 psi 2 kPa 0 02 bars of change in the low side reading On the high side each segment represents Ipsi 8 kPa 0 08 bars of change in the high side reading The hash marks above the bar graph show these units for quick reference Segments on the left of the center mark mean decreased pressure while segments on the right indicate increased pressure 3 Pressure The numeric pressure display is below the bar graph The low side pressure is shown in 0 1 PSI 1 kPa 0 01 bar the high side is shown in PSI KPa 0 1 bar When operating in imperial gauge mode vacuum readings below atmosphere are shown in Hg below atmosphere 4 Temperature This field displays the saturation temperatures of the selected refrigerant at the indicated pressure The left side reading is the vapor saturation dew point for the low side pressure while the right side 10 reading is the liquid saturation bubble point for the high side pressure reading 5 Selected Refrigerant The currently selected refrigerant is shown here The characteristics of the selected refrigerant are reflected in the temperature readings discussed above
18. r rapid system analysis for easier and more accurate trouble shooting T pa QB 3st ong ene Ri fe 75 1 Low and High Side In general displays on the left side of the screen are associated with the low pressure side of the refrigeration system represented by the blue labeling The right side of the display reflects the high pressure side represented by the red labeling The low or high side display will flash when one of the following abnormal pressure conditions occur on each side of the service manifold The pressure detected has exceeded the working pressure range of the gauge or The pressure detected far exceeds the proper operating range for the selected refrigerant resulting in out of range temperature readings This may be caused by improper use of the ZERO key or if the working pressure range has been exceeded Try depressurizing the manifold and press ZERO to recalibrate to a proper atmospheric reference Also ensure the proper refrigerant is selected Bear in mind that readings are subject to device accuracy limitations For example a perfect vacuum of 29 9 Hg may be displayed as 29 8 Hg or cause the device to blink due to an excessive vacuum reading Given the wide operating range of the analyzer extremely accurate vacuum readings are intrinsically difficult to achieve When no pressure unit is indicated the amounts shown are in bars 2 Dynamic Offset Bar Graph Each bar gra
19. setting switching equipment and observing load changes over long periods In HI mode the highest pressure sensed since the MAX MIN CLR button was pressed is shown for both low and high pressure sides along with the corresponding saturation temperatures In LO mode the lowest pressures are shown To begin observing pressure fluctuations press the MIN MAX CLR key Ifnot in HI or LO mode the display will not show any changes but the threshold memory has been updated to the current pressure readings When in HI or LO modes the dynamic update bar graphs is inactive 15 minute automatic shutdown is also disabled to allow continuous monitoring of pressure Be sure to turn off the unit manually when finished Using Temperature Modes The temperature probe is designed for pipes of varying diameters Using the hook and loop fastener or other types of straps secure it firmly onto the pipe with the concave side firmly on the pipe surface For best accuracy on temperature related measurements insulate the sensor against ambient air by wrapping the 7 installed sensor and pipe with a piece of 7 pipe insulation 16 Once the temperature probe is connected to the analyzer the system automatically enters t mode after several seconds Several operation modes are then available through the MODE key tmode The temperature of the probe is shown on the lower right following t It is in F or C depending on the unit s
20. td P O Box 784 Dunean BC VoL 3Y1 Canada Telephone 250 748 1783 Fax 250 748 1743 Internet Site http www digi coolcom Email info digi cooleom Return for Service Please contact us before you return your unit for servicing Include the following information with your package Return Authorization Number Detailed Description of the Problem Name Country Company ZIP Postal Code Address Daytime Telephone City E mail address State Province Upgrades Installed Affix a copy of this shipping label to your package Cool Industries Ltd Attn Service Dept PO Box 784 Duncan BC V9L3Y1 Canada Retum Authorization number From 28 Product Regulatory Information For Customers in Canada As a class A digital apparatus used as test equipment in an industrial environment this device is exempted from the application of the ICES 003 standard For Customers in US When operated as an industrial test instrument this product is not subject to regulation under FCC Part 15 Rules Copyright 2004 Digi Cool Industries Ltd All rights reserved
21. the unit at a later time Air conditioned rooms are ideal Using a dry towel clean battery door area so itis free of dirt and fluids 3 Using Phillips screwdriver remove 4 battery compartment serews and cover 4 Remove old batteries 5 Check that the contact surfaces of the new batteries are visually clean and bright 6 Install batteries noting their orientation in the embossed symbols 7 Replace the battery cover and replace screws 19 If the unit will not be used for several months remove batteries from the unit Do not heat or open batteries Batteries not designed to be recharged can leak or rupture if recharged Where facilities exists alkaline batteries can be recycled An extra screw for the battery door has been provided in case any are lost Cleaning Do not use harsh acids or bases to clean the unit To clean the unit wipe with a damp cloth and a warm solution of soap and water Do not immerse the unit under water Maintenance Check the connections between the pressure port and your service manifold periodically As the unit is exposed to heat and cold the connections may loosen Retighten if necessary Ifthe pressure port is loose against the case of the analyzer use a wrench to tighten the speed nut up against the unit Do not use excessive force There are no user serviceable parts inside the unit Do not disassemble the case Calibration The unit is calibrated to stated
22. vailable refrigerants When the last available refrigerant has been reached the first one is shown again If the unit has been upgraded with addition refrigerants they will be 13 shown following the original refrigerants Refrigerants are labelled according to their ASHRAE designations or trade numbers To change between ASHRAE and trade number display hold R while pressing PWR when turning the unit on ZERO Depress this once to calibrate the unit Regardless of what pressures the low and high side are sampling at the time that this key is pressed these pressures will then be considered the 0 or atmospheric pressure reference reading For best accuracy allow to unit to reach ambient temperature before pressing ZERO UNIT This key toggles the pressure and the temperature readings through the following combinations of pressure units in sequential order kPa C atmospheric reference bars C atmospheric reference PSIA C PSIG C PSIA F PSIG F Temperature units also apply to superheat and subcooling readings when active When no pressure unit is indicated the amounts shown are in bars 14SEC 5SEC HOLD This key selects the time between updates of the numeric pressure reading and corresponding temperature displays For example if the update time selected is ISEC the pressure and temperature displays are updated every second With SSEC the display is updated every 5 seconds If the updat
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