8900 Multi-Parameter Controller

GF SignetSKU: 9278

Sale price$700.00
Non-Stock Item - Ordered as needed. Contact us if you need more information.

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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. Configure the system by selecting 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 20 mA signal converter (Signet Model 8058). To complete your unit, choose a power module with universal AC line voltage or 12 to 24 VDC ±10 percent, regulated.

If more features are needed, analog output and relay modules are available and easily installed. Plus, the 8900 will support four additional relays via an external relay module. There are other notable features that the 8900 offers. For instance, digital input to the 8900 enables longer cable runs and simplified wiring with minimal noise interference. Advanced relay logic allows users to select up to 3 measurement sources to trigger 1 relay. Derived measurements include difference, sum, ratio, percent recovery, percent rejection, percent passage and 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 100 to 240 VAC ±10 percent, regulated power
  • Digital communication allows for extended cable lengths and easy wiring
  • Accepts 3rd party 4 to 20 mA output devices when used with 8058 signal converter
  • Available with 2 to 6 channels
  • Simultaneous BTU Calculations with Heating and Cooling Totalizers per calculation


  • RO/DI System Control
  • Media Filtration
  • Pure Water Production
  • Demineralizers
  • Chemical Processing
  • Fume Scrubbers
  • Wastewater Treatment
  • Rinse Tank
  • Metal and Plastics Finishing
  • Proportional Chemical Addition
  • Cooling Tower and Boiler Protection
  • Aquatic Animal Life Support Systems

Signet Compatible Products:

  • 515 Paddlewheel Rotor-X Flow Sensor
  • 525 Metalex Flow Sensor
  • 2000 Micro Flow Rotor Sensor
  • 2100 Turbine Flow Sensor
  • 2250 Hydrostatic Level Sensor
  • 2350 Temperature Sensor
  • 2450 Pressure Sensor
  • 2507 Mini Flow Rotor Sensor
  • 2536 Paddlewheel Rotor-X Flow Sensor
  • 2537 Paddlewheel Flowmeter
  • 2540 Stainless Steel High Performance Paddlewheel Flow Sensor
  • 2551 Magmeter Flow Sensor
  • 2552 Metal Magmeter Flow Sensor
  • 2750 and 2760 DryLoc pH/ORP Sensors
  • 2850 Conductivity/Resistivity Sensor
  • 4150 Turbidimeter
  • 2610 Dissolved Oxygen Sensor
  • 2724-2726 pH/ORP Electrodes
  • i-Go 8058 Signal Converter
  • 8059 External Relay Modules


None available

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