Start Up/Shut Down - Thermo Scientific NESLAB EX Series Installation, Operation And Maintanance Manual

Start Up/Shut Down

(Digital One/Digital Plus)
Controller
Pre-Start
Before starting the unit, double check all electrical and plumbing connections.
Ensure the bath reservoir is properly filled. The unit will not start if the reservoir
fluid level is below the lower horizontal slit.
The unit can be configured for automatic restart. If the unit shuts down as
a result of a losing power, once power is restored the unit will restart.
See Setup/Tuning Loop on page 21 to enable this feature.
Starting Press . The controller does a self-test (sequences through the LEDs, and
Digital Plus units momentarily sound the alarm), then quickly displays the
setpoint before displaying the reservoir fluid temperature. The pump will start.
NOTE: If the unit's recirculating fluid is outside either temperature limit, the unit
will start but the appropriate indicator will flash until the fluid is within the limit.
Setpoint
To display/change the setpoint press until illuminates. The display
will flash the current setpoint value. Use the arrow buttons to change the value.
The controller will not allow you to enter a setpoint closer than 0.1°C of either
temperature alarm setting, see next page. Attempting to causes the indicator
to flash and, on Digital Plus controllers, sounds the alarm.
Once an arrow button is depressed starts to flash. If an arrow button is not
pressed within 10 seconds the display will return to the reservoir temperature.
On units with the Digital Plus controller, pressing Mute prior to pressing
SCROLL will abort any change and return you to the fluid temperature display.
Once the desired setpoint is displayed, press again to confirm the
change. The display will rapidly flash the new value twice and then return to the
recirculating fluid temperature. If the new value is not confirmed within 60
seconds the display will return to the fluid temperature and ignore any change.
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