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8900 Multi-Parameter Controller


Price starts at $349.72

Product Code : 3-8900 Signet Multi-Parameter Controller

Manufacturer : GF Signet

Model / Description:
I/O Module, required; choose one:
Power module, required; choose one:
Relay module, optional; choose zero, one or two:
External relay module, optional; choose zero / one:
Additional outputs, options; choose zero or one:
Other Accessories:
Mounting Accessories:

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Download or View this product's / series details and specifications Specifications (PDF)

Multi-Parameter and Multi-Channel Instrument - ProcessPro Family
8900 Multi-Parameter Controller

The Signet 8900 Multi-Parameter Controller takes the concept of modularity to the extreme. Each 8900 is field commissioned with the users specified combination of inputs, outputs, and relays using simple-to-install modular boards into the base unit. To assemble a controller, there is a choice of two base units offered with a choice of back-lit LCD or vacuum fluorescent display. Then, continue building with a selection of plug-in modules for either two, four, or six input channels which accepts any of the Signet sensors listed below, and/or other manufacturer's sensors via a 4 to 20mA signal converter (Signet Model 8058). To complete your unit, choose a power module with universal AC line voltage or 12 to 24 VDC.

If more features are needed, analog output and relay modules are available and easily installed. Plus, the 8900 will support up to four additional relays via an external relay module.

There are other notable features that the 8900 offers. For instance, digital input to th 8900 enables longer cable runs and simplified wiring with minimal noise interference. Advanced relays provide "and/or" logic to produce hi/low alarms. Derived measurements include difference, sum, ratio, percent recovery, percent rejection, percent passage, and now with BTU. The menu system can be programmed to display in multi-languages including English, German, French, Spanish, Italian, and Portuguese.

  • Measures Flow, pH, ORP, Conductivity, Pressure, Level and Temperature
  • Multi-language display
  • 1/4 DIN enclosure
  • Up to 4 analog outputs
  • Up to 8 relays
  • 12 to 24 VDC or 85 to 264 VAC Power
  • Digital Communication for improved noise tolerance, extended cable lengths, and easy wiring
  • Accepts 4 to 20mA output devices when used with 8058 signal converter
  • BTU Calculation


  • Pure Water Production
  • Demineralizers
  • Chemical Processing
  • Metal &Plastics Finishing
  • Fume Scrubbers
  • General Heat Transfer System
  • HVAC
  • Proportional Chemical Addition
  • Cooling Tower & Boiler Protection
  • Wastewater Treatment
  • Aquatic Animal Life Support System
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