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MasterCool 98310 Operating Instructions page 3

Wireless refrigerant charging scale with solenoid

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2. Place DOT tank in center of platform and connect to liquid port. (Place disposable tank upside down.)
3. Make sure the charging lines and the system are free of air using deep vacuum pump. (Follow vacuum instructions.)
4. Press ON/OFF button on monitor and platform to turn unit on.
5. Press TARE/ENTER button - display will read zero.
6. Open the valve to begin charging.
7. When the desired amount is reached, close the valve.
8. Press the ON/OFF button on the monitor and platform to turn unit off.
PROGRAM CHARGING
1. Repeat steps 1 through 4 in BASIC CHARGING. (CHARGING SCALE WITH SOLENOID – Connect hose between tank and
IN fitting, making sure hose is loose enough to not impact scale reading. Connect charging lines to OUT fitting. To
vacuum line between tank and IN fitting, see VACUUM AND RECOVERY WITH SOLENOID.)
2. Press CHARGE/PAUSE button.
3. Set amount of refrigerant you want to charge by using CLEAR, ⇑, ⇓ and SHIFT buttons.
4. Press ENTER to start.
5. Open the valve on the tank to begin charging. Just before charging is complete, a short alarm will sound, allowing time
to turn off supply.
6. When charging is completed, scale will sound an alarm again and display "CH-End." Press any button (except the ON/
OFF button) to stop alarm. (If the tank is empty and the charge is not complete, "E-Pty" will display. Replace the tank
and press CHARGE/PAUSE button to resume charging.)
7. When the desired amount is reached, close the valve and press the ON/OFF button on the monitor and platform to turn
unit off.
The unit is preprogrammed for minimum and maximum cylinder weight 0 oz / 243 lbs (0 kg / 110 kgs.) To change cylin-
der weight setting refer to INSTRUCTIONS FOR SETTING TANK CAPACITIES.
REPEAT CHARGING
1. Press REPEAT to start charging the previously stored amount.
2. Open the valve.
3. When desired amount is reached, close the valve and press the ON/OFF button on the monitor and platform to turn the
unit off. (If the scale was turned off, follow steps (1 through 4) of BASIC CHARGING, then follow the REPEAT CHARGING
steps.)
BASIC RECOVERY
1. Follow steps 1 through 6 in BASIC CHARGING.
2. Begin recovery.
LINE VACUUM AND RECOVERY WITH SOLENOID
1. Place tank on scale and connect line between tank and IN fitting then connect OUT fitting to vacuum pump or recovery
machine. Do NOT open tank valve.
2. Turn on platform and monitor.
3. Press CHARGE/PAUSE button.
4. Set charge weight to 1 lb. (0.45 Kg) using CLEAR, ⇑, ⇓, and SHIFT buttons.
5. When ready to vacuum/recover press ENTER and platform valve will open.
6. When done with vacuuming/recovery, press CLEAR to close valve.
7. Continue to PROGRAM CHARGING step 2, or, if done with line recovery, remove hose.
PROGRAM RECOVERY WITH SOLENOID
Push-Pull
1. Connect line from DOT tank vapor port to IN fitting on platform.
2. Vacuum line between tank and valve using LINE VACUUM and RECOVERY WITH SOLENOID.
3. Connect line from OUT fitting on platform to IN fitting on recovery machine.
4. Connect line from system liquid port to tank liquid port.
5. Press TARE/ENTER then CHARGE/PAUSE.
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This manual is also suitable for:

98315