DRS220 - PlumbersStock
Contents
1. E DRS220 Digital Refrigerant Scale N I Instruction Manual Limited Warranty r The DRS220 Digital Refrigerant Scale is warranted to be free from defects in materials and TEST iNSTRUMENTS workmanship for a period of one year from the date of purchase If within the warranty period Dw e S M4 M4 O your instrument should become inoperative from such defects the unit will be repaired or replaced at UEi s option This warranty covers normal use and does not cover damage which occurs in shipment or failure which results from alteration tampering accident misuse abuse neglect or improper maintenance Batteries and consequential damage resulting from failed bat Di g ital teries are not covered by warranty Refri geran t Any implied warranties including but not limited to implied warranties of merchantability and Scale fitness for a particular purpose are limited to the express warranty UEi shall not be liable for loss of use of the instrument or other incidental or consequential damages expenses or eco nomic loss or for any claim or claims for such damage expenses or economic loss A purchase receipt or other proof of original purchase date will be required before warranty repairs will be rendered Instruments out of warranty will be repaired when repairable for a service charge For returm authorization and a service number contact UEi or visit us online Return the unit postage paid and insured to 8030 SW Nimbus Avenue Beavert2. zero and the RUN indicator will show to indicate that the program is running 6 When the applied or removed weight exceeds the programmed amount the alarm will sound and the DONE indicator will flash on the display 7 Press any key to stop the alarm 8 To cancel the RUN mode at any time press the key NOTE The RUN mode can only be initiated from the SET mode If you cancel the RUN mode by pressing e and wish to RUN again press the previous set point will be restored followed by again The display will be zeroed when the program restarts You may program the SET mode without starting the RUN mode by pressing after setting the program set point The new value will be saved HOLD until next time the SET mode is activated can be used during the RUN mode similarly as described in the HOLD MODE section The CM 500 provides additional functionality when using the RUN mode Refer to the CM 500 User s Guide for details Tank Capacity Mode It is often convenient to know the relative amount of material i e refrigerant remaining in a container tank The DRS220 s Tank Capacity Mode allows a continuous display of the percentage of material remaining in a tank In order to compute the percentage accurately the DRS220 must be trained to know the weights of an empty and full tank To train the DRS220 Tank Capacity Mode perform the following steps DRS220 User s Guide Tank Capacity Mode Training 1 While holding do
3. THE DRS220 CAREFULLY OBSERVE BATTERY POLARITY AS MARKED INSIDE THE BATTERY COMPARTMENT DO NOT LEAVE DEAD BATTERIES INSIDE THE CONTROL BOX REMOVE BATTERIES IF THE DRS220 IS NOT TO BE USED FOR AN EXTENDED PERIOD OF TIME DRS220 User s Guide Resolution The resolution minimum incremental weight than can be displayed by the DRS220 can be adjusted to make the display easier to read Unstable loads or high winds can cause the display to fluctuate erratically By reducing the display resolution external influences can be minimized As shipped the DRS220 is set to MEDIUM resolution suitable for most purposes The resolution can be changed to LOW MEDIUM or HIGH by repeated pressing on the keypad The table 1 illustrates the displayed resolution for each units mode vs resolution Regardless of the resolution setting the scale operates internally with the highest resolution therefore only the displayed value is affected Pounds amp Resolution Kilograms Pounds Ounces Ounces TABLE 1 Resolution Settings DRS220 User s Guide Over Range Indication lf the weight applied to the weighing platform exceeds the maximum capacity of the DRS220 100 kg a single 1 will be shown on the left side of the display To prevent damage to the DRS220 immediately remove the weight from the platform Hold Mode A special feature of the DRS220 allows the emptying or replacing bins or containers used for weighing without a
4. e weight of the reference calibration weight Use the kg increments key to adjust in 1 6 Press A number representing the weight of the unloaded platform will appear on the display Press to lock in this value The display will read zero 7 Apply the calibration weight to the platform A number representing the applied reference weight will appear on the display Allow at least 10 seconds for this number to stabilize 8 Press The DRS220 is now recalibrated to the reference weight 9 Refer to the Quick Start section above for setting the desired Units and Resolution DRS220 User s Guide Restoring Factory Calibration If you make a mistake recalibrating the DRS220 you can always restore the factory calibration and factory defaults of the scale To restore the factory settings perform the following steps 1 Turn the power to the DRS220 off 2 Remove any objects from the platform 3 While holding amp press and release The DRS220 will turn on and 10 beeps will sound The factory settings are now restored 4 Refer to the Quick Start section above for setting the desired Units and Resolution NOTE When calibrating or restoring the factory calibration or must be held while pressing and releasing o Otherwise the calibration or calibration restore functions will not operate Sound As delivered from the factory the DRS220 beeps when turning on and when keys are pressed This sound can be muted a
5. ffecting the weight shown on the display This Hold Mode may be used as follows 1 Allow load to seitle until display is steady 2 Press The HOLD indicator will turn on and the current weight is now locked on the display 3 Remove empty or replace objects bins or containers on the platform 4 Wait 5 seconds for the new load to stabilize 5 Press ro The HOLD indicator will turn off Measurements will continue from where they left off prior to initiating Hold Mode Programming With the DRS220 a programmable threshold weight will sound an alarm The alarm will sound when the displayed weight either positive for increasing weight or negative for decreasing weight equals the programmed weight To program the alarm perform the following steps 1 Set up the DRS220 with the desired units and resolution as described in the Quick Start Setup section above 2 lf measuring decreasing weight place the objects or container with the objects or material that will be removed on the weighing platform 3 Press to start the SET Mode indicated by the SET annunciator on the LCD display DRS220 User s Guide 4 Press and or hold the A or Y ies to set the desired alarm set point To es This will activate the FAST SET mode which will change the set point 10x faster than normal Press again to return to the normal speed SET mode change the set point faster press 5 Press E The display will automatically change to
6. ies while charging a Close all valves b Press to freeze the display as described in the Hold Mode Section Replace the empty refrigerant cylinder with a full one Attach and purge hoses d Press to exit the Hold Mode e Open manifold valve s Charging will continue from where it left off 9 When charging is complete the alarm will sound Close all valves and press any key to cancel the alarm NOTE The DRSCM Charging Module allows for automatic charging of HVAC systems Please refer to the DRSCM Charging Module User s Guide for details Notes DRS220 User s Guide 15 DRS220 User s Guide DRS220 User s Guide Notes Notes 16 w
7. ith A and Y Freezes display I n a E A gt D z 4 i N ro J w A 4 wo Starts programming mode A Cc z n 4 oO Activates Deactivates stored program iN DRS220 User s Guide Quick Start To operate the DRS220 as a basic weigh scale perform the following steps Setup 1 Unpack the scale as described in the Unpacking the DRS220 section below 2 Install the batteries into the control box as described in the Battery Installation section below 3 Place the Weighing Platform on a firm level surface 4 Turn the DRS220 on by pressing 5 Select the proper measurement units by repeated pressing Sj The units will cycle as follows kilograms pounds gt pounds and ounces ounces 6 Select the desired display resolution by repeatedly pressing as described in the RESOLUTION section Basic Weighing Operation 1 If using a container to hold the objects being measured place it empty on the center of the platform Press to zero out the scale The display will read zero Place the material to measure in the container or on the center of the platform Read the weight on the display A positive number indicates the applied weight is greater than the zero value A negative number indicates the applied weight is less than the zero value Repeat steps 1 through 5 as necessary oe IY O gt 7 Turn the DRS220 off by pressing and holding down until the scale tur
8. ns off 8 To conserve battery life the DRS220 will turn itself off after 30 minutes of inactivity unless it is currently running a program see Programming section The last state of the DRS220 will be restored upon power up DRS220 User s Guide Unpacking the DRS220 1 Remove the DRS220 from the carry case 2 Remove the control box from the storage dock in right side of the weighing platform by pulling the control box firmly from the dock 3 Unwrap the coiled cord from around the weighing platform When using the DRS220 ensure the coiled cord does not touch the top of the weighing platform or inaccuracies may result 4 If desired extend the easel at the top back of the control box by pulling it out The easel may be used straight for hanging or folded at an angle for resting on a level surface Repacking the DRS220 1 If extended restore the easel to the retracted position 2 Wrap the coiled cord counter clockwise around the weighing platform 3 Push the control box firmly into the storage dock of the weighing platform until it Snaps in place 4 Replace the DRS220 into the carry case Battery Installation amp Replacement 1 Remove the battery cover from the rear of the control box by compressing tab at the base of the battery cover 2 If necessary remove old set of batteries 3 Insert 4 AAA Replace battery cover by aligning tabs and snapping back into place IMPORTANT TO PREVENT DAMAGE TO
9. ograms 220 Pounds Accuracy 0 5 of Reading 1 Least Significant Digit Resolution 29 0 005 Ibs 0 1 oz Power 4x 1 5V AAA Alkaline Batteries 6 VDC Battery Life 30 hours continuous use Operating Temperature 0 C 60 C 32 F 140 F Weight 2 5 kg 5 5 Ibs Dimensions 26 7 cm x 26 7 cm x 4 5 cm 10 5 x 10 5 x 1 75 NOTE To prevent damage never exceed the rated capacity of the DRS220 DRS220 User s Guide Parts Diagram Easel 4 Extended Keypad Easel i Retracted Weighing l Platform Mounting Hooks Speaker Grill Optical Port for CM 500 Battery Cover Control Box Rear View DRS220 User s Guide LCD Display CICI ct N AN AEN A T T RUN HOLD CAL VALVE q TANKA ADONE CLOSED OPEN kesorurion amp OO OOO Item Main Numeric Display B Alternate Numeric Display Tank Capacity Percent Indication D Units Indicators Sound Mute Indicator Floating Negative Indicator Indicates weight removed from olatform G H J K Hold Mode Indicator P Resolution Indicator DRS220 User s Guide Keypad RUN STOP HOLD FAST Press for power on press hold for power off Press to cycle through displayed units Press to select low medium or high display resolution Press to zero out current reading on display Y Use to adjust various settings and programming values For faster adjustments Used in conjunction w
10. on OR 97008 CALL 1 800 547 5740 FAX 503 643 6322 www ueitest com Email info ueitest com This warranty gives you specific legal rights You may also have other rights which vary from state to state USA 1 800 547 5740 Fax 503 643 6322 1 800 547 5740 WWW UEiTEST COM info UEiTEST COM CANADA 1 877 475 0648 Fax 604 278 8299 WWW UEITEST COM COPYRIGHT 2011 UEi DRS220 User s Guide Introduction Thank you for your purchase of the UEI DRS220 Digital Charging Scale The DRS220 is the most accurate and precise refrigerant meter available today with features that cannot be found anywhere else It is ideal for HVAC and Refrigeration service including Critical Charging of small refrigeration systems With the DRS220 you can measure weight in both metric and english units The DRS220 is programmable and has a built in alarm to indicate a programmed threshold has been exceeded Attaching the DRS220 to the DRSCM optional extra allows automatic refrigerant charging for A C systems Features e Large high visibility LCD display e Measures Weight in kgs and lbs e Built in memory remembers all previous settings e Refrigerant Tank Capacity Indicator e Rugged Compact Design e Long Battery Life e High Accuracy and Resolution e Programmable e Can be calibrated in the field with inexpensive reference weights e Expandable with DRSCM Charge module not included Specifications Capacity 100 kil
11. s follows 1 Make sure the power is on 2 While holding press The musical symbol on the left of the display will turn off to indicate that the sound has been muted Repeat steps 1 and 2 to turn the sound back on NOTE The Mute function only affects the power on and key press beeps It has no effect on the alarm DRS220 User s Guide HVAC Service Because of its high stability and accuracy the DRS220 is ideal for automotive commercial and residential A C refrigerant charging and recovery Its high resolution also allows accurate critical charging of small refrigeration systems such as commercial freezers To use the DRS220 for refrigerant charging perform the following steps Press to set the desired display units 2 If desired set up the Tank Capacity Mode as described in the Tank Capacity Mode section This will allow you to know at any time the percent of refrigerant remaining in the refrigerant cylinder 3 Carefully set the refrigerant cylinder on the weighing platform 4 Attach the cylinder to the charging manifold via a utility hose Open the cylinder valve and purge air from the hose 5 Program the desired refrigerant charge as described in the Programming section Activate the program by pressing 6 Open the manifold valve s 7 The display will indicate the weight charged as negative indicating refrigerant is being removed from the charging cylinder 8 Ifthe refrigerant cylinder empt
12. s necessary to replace the batteries refer to the Battery Installation section above If the battery power drops to the point where the DRS220 can no longer function accurately the alarm will beep 20 times and the power will turn off automatically When the batteries are replaced and the scale is turned back on the DRS220 will resume operation with all previous setting intact DRS220 User s Guide Calibration The DRS220 is calibrated at the factory to provide high accuracy While recalibration should seldom if ever be necessary recalibration is performed easily without sending the product to the manufacturer for service A Known calibration weight in kilograms is required to recalibrate the scale and can be any value between 5 kg and 100 kg 25 kg is recommend Best accuracy is obtained by using the largest weight available i e a 50 kg calibration weight will provide better calibration accuracy than a 5 kg calibration weight In addition it is necessary to know the weight to within 2 grams To recalibrate the DRS220 perform the following steps 1 Place the DRS220 weighing platform on a firm level surface 2 Turn the power to the DRS220 off 3 Remove all objects from the platform 4 While holding press and release The DRS220 will turn on and after a few seconds the display will show SET CAL and 25 000 kg 5 Using A or Y adjust the displayed value in 2g increments so that it is equal FAST to th
13. t on the training as the Tank Capacity Mode relies on absolute not relative weights DRS220 User s Guide Turning Tank Capacity Mode Off Perform the following steps to turn the Tank Capacity Mode Off 1 While holding down press The SET TANK indicator will turn on and ON will show on the display This indicates that the Tank Capacity Mode is currently on 2 Turn the Tank Capacity Mode off by pressing Y The display will show OFF and the Alternate Numeric Display will turn off RUN 3 Press to return to normal operation Turning the Tank Capacity Mode On without Re training The Tank Capacity Mode can be turned back on without retraining The DRS220 will remember the previous 0 and 100 set points until the unit is re trained as above To turn the Tank Capacity Mode on without re training perform the following steps 1 While holding down press The SET TANK indicator will turn on and OFF will show on the display This indicates that the Tank Capacity Mode is currently off 2 Turn the Tank Capacity Mode on by pressing A The display will show ON and the Alternate Numeric Display and Percent Indicator will turn on 3 Press S to return to normal operation Battery Level Indicator The battery level indicator shows the relative strength of the batteries Full power is indicated by four bars As the batteries are depleted the number of bars displayed decreases until no bars are left At this point it i
14. wn press The SET TANK indicator will turn on and OFF will show on the display This indicates that the Tank Capacity Mode is currently off 2 Turn the Tank Capacity Mode on by pressing 4 The display will show ON and the Alternate Numeric Display and Percent Indicator will turn on 3 Press to proceed to the first step of training 0 will flash in the Alternate Numeric Display indicating that the weight of an empty container must be registered 4 Apply an empty container or a load representing the weight of an empty container on the platform Wait 5 seconds for the load to stabilize then press SET 100 will flash in the Alternate Numeric Display indicating that the weight of a full container must be registered 5 Apply a full container or a load representing the weight of a full container on the platform Wait 5 seconds for the load to stabilize then press This completes the training process and the SET TANK indicator will turn off 6 From this point forward the Alternate Numeric Display will show the percent of material remaining in the container from 0 to 100 NOTE The 100 weight must be larger than the 0 weight by at least 200g lf not Err will show on the Alternate Numeric Display To clear the error retrain as above using a 100 weight that is at least 200g larger than the 0 weight During training the ZERO key may be used to assist in setting the 0 and 100 values This will have no effec
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