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氣體洩漏偵測警報器控制主機 ExTox_ET-8D

規格

Description:

Gas detection control unit for measurement of flammable and/or toxic
gases as well as oxygen. Smoke detection as option. Graphic display.
Menu guided configuration. 3 Alarm levels per channel. 24 freely configurable
relays. Analog outputs 4…20 mA (only ET-8DA).
Features: 
Number of Transmitters: 1 to 8 (4-20 mA)
Signal Processing: Microcontroller with A/D-Converter
Alarm/Fault/Indication:
‧ Illuminated graphic display (240 x 64) for indication of measured values, messages and alarms 
‧ 24 (3 x 8) red LEDs for alarm indication
‧ LEDs for indication of channel fault (8 x yellow), channel operation (8 x green), operation (1 x green), device fault (1 x yellow)
User Interface:
‧ Menu guided system via graphic display and keys
‧ Completely configurable at device, no tools needed
‧ 3 password protected servicing levels
Alarm Evaluation:
‧ 3 freely adjustable alarm levels per channel
‧ Monitoring: over-scale, under-scale or min/max
‧ Latching of each alarm configurable
Relays, potential free:
‧ 24 change-over contacts 230 V / 5 A, ohmic (in total: max. 10 A), freely configurable with Alarm 1 to 3 and transmitter fault
‧ 2 change-over contacts 230 V / 5 A, ohmic, for maintenance mode and device fault

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