Instruction Manual
ExTox Control Unit ET-1D Series
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Features of the Control Unit of the ET-1D Series
Concentrations of flammable and toxic gases as well as of oxygen are centrally evaluated by
the Control Units of the ET-1D Series after measuring them safely with our ExTox transmit-
ters. Control Units of the ET-1D Series could be combined with all ExTox-Transmitters Ex-
Sens (-I) and Sens (-I).
Other measurands such as for example temperature or pH-value can be evaluated with
suitable transmitters (4-20 mA, 3-wires).
The control units are available in wall mounted housing, for DIN-Rail installation and for
installation in 19''-Rack or Control Panel. The power supply can flexibly be done with 230 V
or 24 V DC. On request we could supply you with corresponding uninterruptible power sup-
plies for our control units.
The control units in combination with ExTox transmitters comply with EN 60079-29-1 and
EN 45544 for Gas Detection Systems. Furthermore they are in conformity with the European
Directives 94/9/EC (ATEX), 2004/108/EEC (EMC) and 2006/95/EEC (LVD).
Survey on the Control Unit of the ET-1D Series:
1 input channels for transmitter (4-20 mA, 3-wire)
Adjustment to be done directly at the control unit without any work at the transmitter
2 digital inputs, potential free
2 freely adjustable alarm levels per channel, latching adjustable
integrated acoustic signalling device
1 fault indication per transmitter/channel
4 relays outputs, potential free, for indication of Alarm 1, Alarm 2, horn and device fault
illuminated LC-display (4 x 20 signs) for indication of measured values, messages and
alarms
menu oriented configuration of the device without further tools needed
LEDs for alarms, operation, channel fault, device fault and service mode
Service mode
horn reset
1 analogue output (Type ET-1DA only)
