DL422 ORP Transmitter
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DirectLine® DL422 Oxidation Reduction Potential (ORP) Transmitter modules are next-generation analytical transmitters that combine the latest in microelectronics technology with the proven performance of Honeywell’s unique sensing technologies in and unique modular design. The ORP transmitter provides unequaled savings during installation, startup, operation, and maintenance.

DirectLine DL422 Oxidation Reduction Potential (ORP) system consists of an electronics module connected to a Meridian II ORP electrode.   

This ORP transmitter is designed for use in harsh environments where moisture, dust, and chemical attack are prevalent. The DL3000ORP electrodes are remotely mounted and are connected to the electronics module to the ORP electrode via a cable. In addition, the module can be mounted on a 2-inch pipe, wall or DIN rail.

The DirectLine DL422 Oxidation Reduction Potential (ORP) Transmitter is equipped with a sensor which may be mounted integral to the transmitter or remotely eliminating the need and added cost of a separate analyzer or transmitter. A unique Honeywell sensor connected to the sensor side of the transmitter and a 4-20 mA weatherproof output cable for power complete the system.

The ORP transmitter’s local display and keypad facilitate quick set-up, calibration, and operational activities, while the electronics and probe diagnostics reduces troubleshooting time and the sample calibration option electrode reduces calibration time. In addition, the playing card-sized guide facilitates simple, correct, and consistent calibration and configuration.

Honeywell’s DirectLine DL422 Oxidation Reduction Potential Transmitter offers an accurate and cost-effective analytical measurement of ORP, resulting in efficient control of process systems. The highly advanced features of this ORP system make the transmitter easy to install, start-up, operate, maintain and highly cost effective.

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Documentation
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DirectLine Sensor Module, 51-52-16-71DirectLine Sensor Module, 51-52-16-7150.85 KBModel Selection Guide7 May 2014
Smart Sensors and Analytical Instruments BrochureAnalytical brochure - measurements for pH, ORP, conductivity/resistivity, dissolved oxygen and hydrogen purity.1.55 MBBrochure22 Apr 2014
DirectLine Sensor Module, 51-52-16-71DirectLine Sensor Module, 51-52-16-7153.54 KBModel Selection Guide29 Oct 2013
Field and process instrumentation and controller solutions for the pulp and paper industry brochure Learn how Honeywell's transmitters, flow meters, controllers and analytical instrumentation solve problems for the pulp, paper and printing industry.3.45 MBBrochure10 Jun 2012
MSG - DirectLine Sensor Module Model Selection Guide - 51-52-16-71 31.92 KBTech Spec13 Mar 2012
Improving Power Plant Efficiency and Extending Equipment Life Brochure on how analytical instruments can improve power plant efficiency.1.04 MBBrochure30 Sep 2011
Remote Analytical Measurements Use wireless networking to gather remote analytical measurements 454.88 KBSolution Note6 Feb 2008
DL421/422 DirectLine Sensor specification, 70-82-03-40DL421/422 DirectLine Sensor for Durafet II and Meredian II pH/ORP Electrodes282.35 KBTech Spec1 Jan 2003
DL421/422 DirectLine Sensor Russian version, 70-82-03-40-RUDL421/422 DirectLine Sensor For Durafet II and Meredian II pH/ORP Electrodes, Russian version390.41 KBTech Spec1 Jan 2003
DirectLine Sensor Module For Durafet II and Meredian pH Electrodes Specifications, 70-82-57-11Sensor Module For Durafet II and Meredian pH Electrodes Specification 145.18 KBBrochure1 Mar 2001
Public Support Documentation
2 Documents FoundItems per page :
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DL421_DL422_EU DeclarationEuropean Union Declaration of Conformity308.05 KBSupport Document10 Aug 2016
DirectLine DL422 Sensor ModuleUser Manual, 70-82-25-107DirectLine DL422 Sensor Module for Meredian II ORP Electrodes565.37 KBSupport Manual1 Jan 2003

​Training, maintenance and support are critical aspects to consider when choosing a technology partner. Honeywell offers world-class training through our Automation College, as well as comprehensive maintenance and support services designed to leverage your physical and intellectual assets and help you sustain and increase their value and performance over time.

 
 
 
 
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