Operating Manual - John Morris Scientific
Operating Manual - John Morris Scientific
Operating Manual - John Morris Scientific
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Ultra-Low Refrigerated Circulators<br />
5. <strong>Manual</strong> operation<br />
5.1. Start - Stop<br />
24.60<br />
S 150.00<br />
E -----<br />
Setpoint1: 150.00°C<br />
IntAct : 24.60°C<br />
Power : 80 %<br />
Control : intern<br />
Start: Press the start/stop key .<br />
The actual bath temperature is displayed on the VFD COMFORT-<br />
DISPLAY.<br />
The LCD DIALOG-DISPLAY informs about adjustments and<br />
conditions on the circulator (see example on the left).<br />
Stop: Press the start/stop key .<br />
The VFD COMFORT-DISPLAY indicates the message „OFF“.<br />
Autostart: see chapter 6.1. Configuration<br />
The Autostart function enables the start of the circulator directly by<br />
pressing the mains switch or using a timer.<br />
Control of the cooling machine:<br />
With the mains switch (1b) turned on, the circulator automatically<br />
switches the cooling machine off and on.<br />
<br />
<br />
It is switched off, if:<br />
- the actual working temperature is increased by >30 °C (cooling is<br />
not required).<br />
- the heater operates at full power (>800 W) for longer than 5<br />
minutes.<br />
It is switched on, if:<br />
- cooling is necessary for maintaining the bath temperature.<br />
After switch-off, the cooling machine automatically switches on only<br />
after a delay of 5 minutes for protecting the cooling compressor.<br />
To save energy, turn off the cooling machine with the mains switch<br />
(1b) whenever cooling is not required.<br />
25
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