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4TX Product Specifications (PDF)

4TX Operation Manual (PDF)

4TX Relay Supplement (PDF)

4TX Mounting Schematics (PDF)

4TX Hookup Schematic with Preamp (PDF)

4TX Hookup Schematic without Preamp (PDF)

 Model 4TX Single Channel pH, ORP & Temperature Meter & Analyzer
  • pH/ORP MEASUREMENT & CONTROL
  • USER SELECTABLE ATC PROBE
  • (PT-1000, 10K THERMISTOR & 3K BALCO)
  • FOUR PROGRAMMABLE RELAYS FOR pH or ORP
  • REVERSIBLE AND ISOLATED 4-20 mA OUTPUT
  • BUMPLESS CALIBRATION
  • -10 TO + 120 o C TEMPERATURE COMPENSATION
  • CUSTOM DESIGN LARGE DISPLAY LCD
  • MEMBRANE SWITCH WITH AUDIO FEEDBACK
  • AUTOMATIC TEMPERATURE COMPENSATION
  • HIGH 50/60 Hz NOISE REJECTION
  • POWER DOWN MEMORY BACK-UP
  • WATERTIGHT IP65 1/4 DIN ENCLOSURE
  • PROGRAMMABLE DELAY FOR WASH RELAY
  • CE APPROVED

Measurement

Input

Measurement Range

Outputs

Calibration Points

Compatible Sensor(s)

Special Features
pH Single Channel
- pH

pH - 2.00 to 16.00 pH

Current Output Range 4 to 20 mA (isolated), programmable span
Maximum Load 500 ohm
Accuracy ± 0.02 mA

 - Built-in 6 point predefined  or manual calibration option. - User selectable

- ATC probe: Pt-1000 thermistor or 3k Balco

 - Cost Effective
Transmitter for monitoring or control

- RS-485 Output
ORP Single Channel
- ORP

mV (absolute) - 2500 to 2500

Current Output Range 4 to 20 mA (isolated), programmable span
Maximum Load 500 ohm
Accuracy ± 0.02 mA

 - Manual calibration option. - User selectable

- ATC probe: Pt-1000 thermistor or 3k Balco

 - Cost Effective
Transmitter for monitoring or control

- RS-485 Output

Advanced Sensor Technologies, Inc.
603 North Poplar Street, Orange, California 92868-1011 USA
Tel: + (1) 714-978-2837  Toll-Free: + (1) 888-969-2784 Fax: + (1) 714-978-6339 Website: http://www.astisensor.com
Manufacturing Long-Lasting Industrial pH Sensors, ORP sensors, Ion Selective Sensors & Conductivity Sensors for Difficult Inline Process Control Measurement and Monitoring Applications
Supplying Research Grade pH Electrodes, ORP Electrodes, Ion Selective Electrodes and Conductivity Electrodes for Laboratory Testing
Offering industry leading product developments and research services for OEM manufacturers and resellers requiring pH, ORP and Ion Selective Measurements for Medical In-Vitro and In-Vivo Applications and Industrial Inline, Immersion and Submersible Measurements