Clark-Reliance		 Electro Eye-Hye Standard Low Volt Control Unit   •   Electro Eye-Hye 2000 Control Unit
Model ECILElectro Eye-Hye Standard Low Volt Control Unit
Basic system includes
  • independently fused relay modules for each probe level
  • one dry set of form C switch contacts rated @ 5 Amp @ 240 VAC or 30 VDC for all probe levels, prewired to terminal block for field selection
Options
  • system exerciser switch
  • test switch
  • dead band relays
  • 4-20 mA output
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Model ECMElectro Eye-Hye 2000 Control Unit
Features
  • Modular design of microprocessor based components permits easy field installation of options at any time, with high reliability.
  • Internal redundant power supplies for each microprocessor operate from either 120 or 240 VAC.
  • Designed to accept 120 or 240 VAC from two power sources.
  • Optional relay contact, rated at 10 Amps each.
  • 4 wire communication/power bus designed to provide the link to relays, keypads, remote panel indicator(s). Two sets of bus lines are designed for independent control functions. One set for the 4-20 mA output and relay communication, and one set for communication with remote indicators and keypads.
  • Microprocessor, relay, 4-20 mA, keypad, and indiator boards are designed with watchdog timers for reliability.
  • Blowdown circuitry provides testing without activating false alarms or trips.
  • This control unit design will operate up to 32 probe levels.
  • The redundant microprocessor board is completely isolated from the primary processor board, to provide the utmost input and output reliability.
  • The control unit measures the conductivity of each probe circuit for comparison to detect probe fatigue or contamination.
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