Conair MPW, MPA manual Entering Setpoint Deviation Parameters

You can establish a normal operating range around the process temperature setpoint using the high and low deviation parame- ters. If the process temperature exceeds the high deviation limit, or falls below the low deviation limit for longer than 15 minutes, the chiller will alert you to the unacceptable tempera- ture variation with an alarm light.

These temperature deviation limits will adjust automatically relative to the process temperature setpoint.

The factory default setting is the process temperature setpoint

±10° F (6° C). This parameter is adjustable to establish a nar- rower or wider acceptable temperature range for normal oper- ation. You cannot set the Low Deviation below the factory-set Low Safety temperature. The High Deviation cannot be set to exceed the factory-set High Safety temperature.

FACTORY DEFAULT SETTINGS

Model	MPW	MPA
Process Setpoint	50° F (10° C)	50° F (10° C)
High Safety	75° F (24° C)	75° F (24° C)
Low Safety	10° F (-12° C)	10° F (-12° C)

To change the temperature deviation settings:

1 Press the Setpoint Select button to select the deviation parameter you want to change.

2 Use the ▲ and ▼ setpoint buttons to enter the deviation temperature. The setting is stored in memory even when the power is turned off. The recom- mended setting is ± 2-10° F.

NOTE: If you enabled passcode protection, you must enter the passcode to change this parameter. See ENABLING AND

DISABLING PASSCODE PROTECTION.

Too enter the passcode:

Hold down the Setpoint Select button for 5 seconds. When the control displays “ 1 PaS”, use the setpoint adjustment buttons to enter the passcode. Press the Setpoint Select button again. If the correct passcode was entered the controller will display ACC PAS for 3 seconds. If the passcode was incorrect, the controller will display rEJ PAS (rejected passcode).

Access to system parameters remain until power is cycled or the RUN or STOP button is pressed.

ENTERING

SETPOINT

DEVIATION

PARAMETERS

UGH004/0999 microKool Portable Chillers INSTALLATION 3-7