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Product Specifications for Hart & Fieldbus (242K-PDF)

5081 pH/ORP Operation Manual (2,465K-PDF)

3081/5081/54 (w/ preamp)  Hookup Schematic (PDF)

3081/5081/54 (w/o preamp) Hookup Schematic (PDF) 

 Model 5081 pH & ORP Transmitter, Analyzer, Controller
  • The Transmitter has a rugged, weatherproof , corrosion-resistant enclosure.
  • NEMA 4X and IP65 of epoxy-painted aluminum.
  • This enclosure also meets NEMA 7B explosion-proof standards.
  • 24V DC Operation Standard, 12 V minimum and 42.4 maximum.
  • Continous Diagnostics monitor sensor performance and warns of failure (FAULT) or approaching failure (WARNING).
  • CE Certification for Class I, Division I Areas and FM group A-G.
  • Automatic Two-Point Buffer Calibration reduces errors.
  • Choice of  Communication Protocol: HART® or  Foundation Fieldbus.
  • Non-Volatile Memory retains program settings and calibration data during power failures.
  • Solution Temperature Compensation converts measured pH into the pH at 25°C.

Measurement

Input

Measurement Range

Outputs

Calibration Points

Compatible Sensor(s)

Special Features
pH Single Channel
- pH		 - 0 to 14 pH 
(standard)
 - 1 @ 0-20 mA or 4-20 mA for pH
- 1 @ 0-20 mA or 4-20 mA for pH or Temperature		 - 2 point auto buffer recognition
- 2 point user defined		 - Any ASTI pH Sensor with 100 Platinum TC & Solution Ground or
- Any ASTI pH with Sensor integrated 54e preamplifier		 - User/Default Sensor Diagnostics for pH glass resistance
- User/Default Sensor Diagnostics for reference element
ORP Single Channel
- ORP		 -1400 to +1400 mV 
(standard)		 - 1 @ 0-20 mA or 4-20 mA for ORP
- 1 @ 0-20 mA or 4-20 mA for ORP or Temperature		 - 2 point auto buffer recognition
- 2 point user defined		 - Any ASTI pH Sensor with 100 Platinum TC & Solution Ground or
- Any ASTI pH with Sensor integrated 54e preamplifier		 - User/Default Sensor Diagnostics for ORP Element
- User/Default Sensor Diagnostics for reference element

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