Digital Charging SCale
USer gUiDe
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
®
PCS220
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Introduction
Thank you for your purchase of the PCS220 electronic refrigerant programmable charging
scale. The PCS220 utilizes the most technologically advanced 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
PCS220 you can measure weight in both English and metric units.
The PCS220 is programmable, and has a built-in alarm to indicate a programmed threshold
has been exceeded.
Features
• High-visibility LCD display
• Measures weight in lbs and kgs
• Built-in memory remembers all previous settings
• Rugged, compact design
• High accuracy and resolution
• Programmable
• Can be calibrated in the field with inexpensive reference weight
®
Specifications
Capacity 220 pounds (100 kilograms)
Accuracy 0.5% of reading +/- 1 least significant digit
Resolution 0.010 lbs (5g)
Power 5 x 1.5 V ‘AA’ alkaline batteries (7.5 VDC)
Battery Life/Type 60 hours continuous use. Qty 5 “AA”
Operation Temperature 50°F - 122°F (10°C - 50°C)
Weight 6.03 lbs (2.74 kg)
Dimensions 9.13” x 9.13” x 2.28” (23.2cm x 23.2 x 5.8cm)
NOTE: To prevent damage, never exceed the rated capacity of the PCS220
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Item Function
1 Main Numeric Display
2 Valve Indicator Light (ON / OFF)
3 Battery Level Indicator
4 “Floating” Negative Indicator
(Indicates weight removed from platform)
5 Display “TARE / ZERO”
6 Indicate Units For oz
7 Indicate units For kg and g
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LCD Display
Item Function
1 Main Numeric Display
2 Valve Indicator Light (ON / OFF)
3 Battery Level Indicator
4 “Floating” Negative Indicator
(Indicates weight removed from platform)
5 Display “TARE / ZERO”
6 Indicate Units For oz
7 Indicate units For kg and g
Item Function
8 Indicate Units For lbs
9 Programmable Weight Set
10 Run Mode Indicator
11 Hold Mode Indicator
12 Valve Open / Close
13 Set Resolution 2G (high) / 5G (low)
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Keypad
Press to power on. Press and
hold 2 seconds to power off
Press to “TARE / ZERO” current
reading on display
Shift imperial / metric
measurements
Press “SET” to start program
amount
Press to increase setting charging
amount or pause when charging
Press to reduce setting charging
amount / Switch 2G or 5G
resolution
Press to shift FAST / SLOW setting
amount. Use ‘5g’ setting when
you need to increase / reduce
Activates / Deactivates stored program. Check if electromagnetic
valve operates normally.
within 1 kg. Use ‘100g’ setting
when you need to increase /
LCD background lamp
reduce beyond 1 kg.
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Basic Weighing Operation
To operate the PCS220 as a basic weight scale, perform the following steps:
1. Remove the PCS220 from the carry case.
2. When using the PCS220, ensure the coiled cord does not touch the top of the weighing
platform, or inaccuracies may result.
3. 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.
4. Install the batteries into the control box as described in the “Battery installation” section
below.
5. Place the weighing platform on a firm, level surface.
6. Turn the PCS220 ON by pressing
7. Select the proper measurement units by repeated pressing.
The units will cycle as follows: kilograms pounds
8. If using a container to hold the objects being measured, place it empty on the center
of the platform.
9. Press to “zero-out” the scale. The display will read zero.
10. Place the material to measure in the container or on the center of the platform.
11. Read the weight on the display.
12. 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.
13. Turn the PCS220 OFF by pressing until the scale turns off.
14. To conserve battery life, the PCS220 will turn itself off after 30 minutes of inactivity, unless
it is currently running a program (see programming section). The last state of the PCS220
will be restored upon power-up.
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Refrigerant charging / recovery operation
1. Install the batteries into the control box as described in the “Battery Installation” section on
page 8.
2. Place the weighing platform on a firm, level surface.
3. Connect one end of charging hose to “INLET” and the other end to refrigerant tank.
4. Connect one end of charging hose to “OUTLET” and the other end to either the manifold
gauge or auto A/C system.
5. Turn on the PCS220 by pressing .
6. Select the proper measurement units by repeated pressing. The units will cycle
as follows: kilograms pounds.
7. Place the refrigerant tank on the center of platform and open refrigerant tank valve, weight
displayed on the screen.
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8. Press to set weight.
(1). If set weight within 1kg, press or repeatly.
Press to start charging work.
(2). If set weight beyond 1 kg, press and press
or repeatly, press to start charging work.
9. When finished refrigerant charging, the Valve will auto shut off and alarm for 6 seconds.
Note:
1. Press if you want to pause the charging work.
2. Press if you want to stop and cancel charging work.
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Battery Installation
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. Inser t 5 ‘AA’. Replace battery cover by aligning
Important:
TO PREVENT DAMAGE TO THE PCS220, CAREFULLY OBSERVE BATTERY POLARITY AS
MARKED INSIDE THE BATTERY COMPARTMENT. DO NOT LEAVE DEAD BATTERIES INSIDE
THE CONTROL BOX. REMOVE BATTERIES IF THE PCS220 IS NOT TO BE USED FOR AN
EXTENDED PERIOD OF TIME.
Over Range Indicator
If the weight applied to the weighing platform exceeds the maximum capacity of the PCS220
(200 lbs), ‘OL’ will be displayed in the middle of the display. To prevent damage to the
PCS220, immediately remove the weight from the platform.
Parts Included
1. 1 set refrigerant charging scale
2. 5 PCS 1.5V “AA” alkaline batteries
3. 1 PCS charging hose
4. 1 user’s guide manual
5. 1 PCS molded case
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