Operating instructions

Code English output Description
15 Digital Input Malfunction at the digital input
20 T ext Ethernet No signal for actual value via the Ethernet module
8.3 Low Level alarm
 If the liquid level falls below the minimum level, an alarm
sounds.
 Low Level is shown on the screen. The device components
such as the pump are switched off by the electronics.
Personnel:

Operating personnel
1. Refill lacking heat transfer liquid.
2. Unlock the display with the OK button.

The device restarts.
8.4 Overtemperature alarm
This alarm can only occur for devices with heater.
 The message 3 Overtemperature is shown on the screen if the
temperature monitor trips.
 The electronics switch off the components of the device.
 The device outputs a two-tone signal.
Fig. 72: Alarm Low Level
Rectifying fault
Fig. 73: Overtemperature alarm
Faults
Variocool 75