GF 9950 controller/transmitter showing channels 5 and 6 on-screen with pH and temperature values.

9950 Six-Channel Transmitter

Compact yet powerful, the 9950 Six-Channel Transmitter offers two, four, or six channels with two passive 4 to 20 mA current loop outputs and an optional Modbus module. ​

Six channels and advanced functionality

The 9950 Six-Channel Transmitter has the easy setup of a transmitter with the versatility of a controller. Connect up to six sensors with a daisy chain connection to the single transmitter. Multiple relay modes allow up to three signals to be used for the control of a single relay.​

The 9950 analyzer supports all like sensors or a mix of any GF Piping System sensors. Sensor types and accessories supported by the 9950 are GF flow (frequency and/or digital S³L), pH/ORP, conductivity/resistivity, salinity, temperature, pressure, level, dissolved oxygen, and any device that transmits a 4 to 20 mA signal when used with the single channel 3-8058 iGo® Signal Converter.

  • Extensive Compatibility
    Independent six-channel multi-parameter, flow, pH, ORP, conductivity, resistivity, pressure, temperature, level, volume, salinity, dissolved oxygen and other (4 to 20 mA).

  • Advanced Capabilities
    With onboard clock/calendar, derived functions, advanced relay operation and Boolean logic you have seemingly countless configurations to meet your process control needs. 

  • Streamlined Operation
    Now with two, four and six-channel options, the 9950 can easily replace multiple controllers in a system while offering advanced functionality.

  • Simplified Automation
    Automate processes with math and logic-controlled relays.
9950 controllers in a circle form
Modular Design

Easily configure the controller to meet application requirements. The 9950 supports any one of the following relay modules: four channel mechanical relay module, two mechanical and two solid state relay module, or two mechanical relays and four binary inputs module

Visual Alarm Cue

The screen turns red when the alarm is triggered to give a visual alarm in case of sensor failure. Available in the Options menu, this feature is designed to visually alert personnel in the event of a sensor failure.

Easy Setup

Automatically recognizes GF Piping Systems sensors for easy controller setup. Language support for English, French, German, and Spanish, the controller make starting up the 9950 simple.

Six Channels

The power and versatility of the 9950 allow the use of up to six GF Piping System sensors to manage complex applications. With the additional capacity, installations can be streamlined to a single controller.

Extensive compatibility

With automatic recognition of GF Piping Systems sensors, operating your application from a single point is seamless. Compatible with the full GF Piping Systems portfolio of flow, pH/ORP, conductivity, resistivity, pressure, temperature and level sensors. Additionally, when adding GF Piping System valves and actuators, the 9950 Six-Channel Transmitter becomes a powerful solution.

9950 connected to six sensors including pH, flow and conductivity
Isometric picture of water treatment facility
  • Deionization
  • Chemical Manufacturing / Addition
  • Cooling Tower
  • Chemical Dosing/ Injection
  • Aquatic Life Support
  • Pools & Fountains
  • Rinse Tanks
  • Chemical Neutralization

Introducing the 9950 Six-Channel Transmitter

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Georg Fischer Ltd - Head Office / Warehouse Wellington

13 Jupiter Grove

5018 Upper Hutt

New Zealand

GF logo on the headquarters building