Gas detection control unit ET-1D

Features:

Number of transmitters:
1 (4-20 mA)

Signal evaluation:
Microcontroller with A/D converter

Alarm/Fault/Display:
Illuminated 4-line display for showing measurements, messages, and alarms, bar graph display of concentration
Green LED for operational indication
2 red LEDs for alarm indication (Alarms 1 and 2)
Yellow LED for device and transmitter fault indication

User interface:
Menu-driven system via graphical display and buttons
Fully configurable on the device without additional tools
Password protection

Alarm evaluation:
2 freely adjustable alarm thresholds
Monitoring: Exceedance, fall below
Self-holding configuration for each alarm

Relays, potential-free:
4 changeover contacts 230 V / 5 A (total switching current: max. 10 A) for Alarm 1 and 2, fault, alarm sound

Additional functions:
Zero-point and sensitivity adjustment of the measuring channel
Alarm lock during maintenance mode
Separate acknowledgment of alarm sound
New value alarm notification
2 digital inputs, potential-free
Analog output 4…20 mA (only ET-1DA)

Operating temperature:
-10 °C to +40 °C, humidity: non-condensing

Storage temperature:
-25 °C to +60 °C, humidity: non-condensing