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Section 6 Operation
6.1 User interface—Temperature controller
Figure 9 Temperature controller
1 Left display
2 Output activity
3 Right display
4 Down arrow key
When flow to the unit is stopped, the heater will become too hot. An alarm prevents the heater
operation until the user restores flow and stops the alarm on the controller. Push
alarm acknowledgement mode. Use
to stop the alarm.
6.1.1 Configure the heater alarm
Set the flow through the unit to a range of 100 to 150 ml/minute (6 to 9 L/hr) to make sure that the
heater stays filled with water. Set the flow before power is applied to the unit to prevent damage to
the heater. If cooling water is not supplied to the instrument, remove all cells downstream of the
heater and flow cells. For a description of the temperature controller, refer to
By default, the temperature meter is set to show the actual temperature on the left display and the
maximum temperature on the right display. Do not change the factory-set defaults. Refer to the
Watlow EZ-ZONE PM Express User's Guide (available online) for all of the user instructions.
16 English
5 Up arrow key
6 Infinity key
7 Advance key
and
to scroll through the alarm responses. Select "CLr"
to enter the
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