GF Signet 9950 SmartPro® Dual Transmitter

No reviews yet Write a Review
$20.40 - $1,411.00 ex. Tax
159 001 841


The 9950 Transmitter is a two channel controller that supports two sensors of same or different types in one instrument. The sensor types supported by the 9950 are Signet Flow, pH/ORP, Conductivity/Resistivity, Salinity, Temperature, Pressure, Level, Dissolved Oxygen, and devices that transmit a 4 to 20 mA signal with the use of the 8058 iGo® Signal Converter.

The 9950 includes advanced features such as derived functions, advanced multiple relay modes, and timer based relay functions. Derived functions allows for the control of a relay or current loop with the sum, delta (difference), or ratio of two measurements, for example delta pressure and delta temperature. Multiple relay modes allow up to three signals to be used for the control of a single relay.  This can be any combination of analog and binary inputs.  The timer relay modes allow a relay to be activated on a repeating basis from every minute to once every 30 days. Weekday timer mode allows a relay to be energized on a specific day or days of the week at a specific time.

The 3-9950.393-3 Relay Module includes the ability to interface up to four binary inputs. The binary inputs are compatible with either open collector or mechanical contacts. The binary inputs can supply power to the four inputs or accepts powered outputs from external devices. These inputs can be used with level switches, fl ow switches, pressure switches or other devices. The inputs can be used to directly control the relays of the 9950 or can be used in combination with the measurement readings for advanced control of your process.

The 9950 supports the following relay module add-ons

  • Four Channel Mechanical Relay Module
  • Two Mechanical and Two Solid State Relay Module
  • Two Mechanical Relays and Four Binary Inputs Module 

The 9950 supports one or two direct conductivity modules for conductivity, resistivity or salinity measurements.A dual channel 4 to 20 mA passive output module is available. This will allow expansion from a base of 2 current loop outputs to a maximum of 6 current loop outputs in a single transmitter.

Fields of Application:

  • Wastewater Treatment
  • Reverse Osmosis
  • Deionization
  • Chemical Manufacturing/Addition
  • Metal and Plastic Finishing
  • Fume Scrubbers
  • Cooling Towers
  • Media Filtration
  • Chemical Dosing/Injection
  • Aquatic Life Support
  • Pools & Fountains
  • Rinse Tanks
  • Chemical Neutralization


  • One instrument for multiple sensor types
  • Two different sensor types can be combined in one instrument
  • Configurable display
  • Derived measurements
  • Advanced boolean logic
  • Optional modules can be added for additional capabilities
  • USB port for field upgrades using standard USB flash drives

Relay Modules:

  • Relay Module

Single and Dual Channel Modules:

  • Single and Dual Channel Modules


  • CE
  • UL
  • CUL
  • China RoHS
  • RoHS Compliant
  • FCC

Compatible Products

  • 515 Paddlewheel Rotor-X Flow Sensor
  • 2536 Paddlewheel Rotor-X Flow Sensor
  • 525 Metalex™ Flow Sensor
  • 2000 Micro Flow Sensor
  • 2100 Turbine Flow Sensor
  • 2507 Micro Flow Sensor
  • 2540 High Performance Flow Sensor
  • 2551 Electromagnetic Flow Sensor
  • 2552 Metal Magmeter Flow Sensor
  • 2537 Paddlewheel Flowmeter
  • 2610 Dissolved Oxygen Sensor
  • 2724-2726 pH/ORP Electrodes
  • 2734-2736 pH/ORP Electrodes
  • 2764-2767 Differential DryLoc® pH/ORP Electrodes
  • 2774-2777 Threaded DryLoc® pH/ORP Electrodes
  • 2751 DryLoc® pH/ORP Smart Sensor Electronics
  • 2850 Conductivity/Resistivity Sensor

*Note: Use of the +GF+ signet 2720 Ultrasonic Level Sensor with the 9950 controller requires the i-Go® Signal Converter.

292-2929112-adobe-acrobat-pdf-logo-icon-clipart.pngVIEW / DOWNLOAD 9950 DATASHEET

292-2929112-adobe-acrobat-pdf-logo-icon-clipart.pngVIEW / DOWNLOAD 9950 RELAY MODULES DATASHEET

Extra Information

GF Signet