Search This Site

(Search by Product Type i.e. Level or Brand Name i.e. Walchem)

DR5000 ORP Controller

USA Toll Free: 1-800-730-0302 Tel: 416-240-1920 -

Electronic Metering Pump, LMIDR5000 ORP Controller

The DR5000 ORP Controller is designed to control LMI Metering Pumps for the addition of oxidizing and reducing agents. It shares the same features and options as the DP5000 and is often used in water and wastewater treatment, fruit processing and metal finishing.

Features & Benefits

  • +2000 to -2000 mV Scale

  • Dual-channel output fully programmable

  • On/off and/or proportional pump control

  • Alarm output with programmable set points

  • Drain valve control with programmable timers

  • 3-point proportional pump control

  • Probe diagnostics with 1- or 2-point calibration

  • Tactile keypad for ease of programming

  • Backlit LCD display


The DR5000 allows independent programming of control methods:

  • ON/OFF

Control of dosage for:

  • Reducing Agent (Pump A)
  • Oxidizing Agent (Pump B)

Independent high and low ORP alarms may be set with activation of the Alarm relays.

A third relay output is available for activating a solenoid valve or other devices.


  • Electrodes
  • Flow Switch Assemblies
  • Pre-Amp with cables
  • Extension Cable Assemblies
  • Tee Assemblies
  • Manifolds
  • Replacement Parts


About Us

Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


Our Products

Dataloggers, sensors, pumps, recorders, hand held instruments, flow instrumentation, level controls, valves, instrumentation, containers, tanks, transmitters, data loggers, digital indicators, mixers and agitators, pressure intrumentation, analyzers and controllers for a variety of industrial applications such as water quality, pH/ORP and more.

Website Content

Water Analyzers and Controllers, Wireless Products, Corrosion Monitoring Equipment, Cooling Tower and Boiler Controllers, a wide variety of Pumps, Valves, Dataloggers and Recorders, HVAC, Instrumentation, Skids and Systems, Containers and Tanks from world leading manufacturers are products you will find on this site.

Get in Touch