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DRS220  User’s Guide

1

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

• 

Large, high-visibility LCD display

• 

Measures Weight in kgs and lbs

• 

Built-in memory remembers all previous settings

• 

Refrigerant Tank Capacity Indicator

• 

Rugged, Compact Design

• 

Long Battery Life

• 

High Accuracy and Resolution

• 

Programmable

• 

Can be calibrated in the field with inexpensive reference weights

• 

Expandable with DRSCM Charge module  (not included)

Specifications

Capacity

100 kilograms (220 Pounds)

Accuracy

0.5% of R/- 1 Least Significant Digit

Resolution

2g, 0.005 lbs., 0.1 oz.

Power

4 x 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 lbs.)

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.

Summary of Contents for DRS220

Page 1: ...ies of merchantability and 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 e...

Page 2: ...erant charging for A C systems Features Large high visibility LCD display Measures Weight in kgs and lbs Built in memory remembers all previous settings Refrigerant Tank Capacity Indicator Rugged Comp...

Page 3: ...y B Alternate Numeric Display C Tank Capacity Percent Indication D Units Indicators E Sound Mute Indicator F Floating Negative Indicator Indicates weight removed from platform G Battery Level Indicato...

Page 4: ...ment units by repeated pressing The units will cycle as follows kilograms pounds pounds and ounces ounces 6 Select the desired display resolution by repeatedly pressing as described in the RESOLUTION...

Page 5: ...ld set of batteries 3 Insert 4 AAA Replace battery cover by aligning tabs and snapping back into place IMPORTANT TO PREVENT DAMAGE TO THE DRS220 CAREFULLY OBSERVE BATTERY POLARITY AS MARKED INSIDE THE...

Page 6: ...display DRS220 User s Guide 9 4 Press and or hold the or keys to set the desired alarm set point To change the set point faster press This will activate the FAST SET mode which will change the set poi...

Page 7: ...on absolute not relative weights DRS220 User s Guide 11 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...

Page 8: ...pply 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 n...

Page 9: ...hose Open the cylinder valve and purge air from the hose 5 Program the desired refrigerant charge weight as described in the Programming section Activate the program by pressing 6 Open the manifold v...

Page 10: ...DRS220 User s Guide 16 Notes DRS220 User s Guide 17 Notes...

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