Heidolph Hei-CHILL, Руководство по эксплуатации, Страница: 35 / 92

Assembly
35
A maximum 30 V DC at 0.2A may be
connected to the alarm output.
Sleep state
If the device is switched off or there is
a fault after switching it on, the alarm
output is in a sleep state:
▪ Pin 1 and 2 are open.
▪ Pin 3 and 2 are closed.
Alarm output
1 2 3
Alarm output in sleep
state
Good state
If the device is switched on and operating without any faults, the alarm output is in a
good state:
▪ Pin 1 and 2 are closed.
▪ Pin 3 and 2 are open.
Temperature control hoses
Warning:
Risk of frostbite!
If you use unsuitable hoses at very low cooling temperatures, the
thermal fluid may escape and you could experience frostbite if you
come into contact with it.
Only use hoses with a temperature resistance that corresponds to
the operating temperature range of the device.
Warning:
Risk of frostbite!
If you come into contact with cold hoses, you could experience frost -
bite if you are working with very low cooling temperatures.
Only use insulated hoses at operating temperatures < 0 °C.
All hose connections are located on the
top rear of the device.
▪ Pump flow line
▪ Pump return
▪ Overflow pipe
All hose connections are fitted with a
hose connector suitable for hoses with an
internal diameter of Ø 8 mm.
Pump connection
return line
Overflow pipe
Pump connection
flow line
Rear of device
Hei-CHILL 250, Hei-CHILL 350