Honeywell’s DirectLine® transmitter modules are the next generation family of analytical transmitters.  Unique architecture in the DirectLine® transmitters combines the latest in microelectronics technology with the proven performance of Honeywell’s unique sensing technologies; providing unequaled savings during installation, start-up, operation, and maintenance.  For REDOX / ORP measurement the DirectLine® transmitter modules can be mounted integrally or remotely with the Meredian II ORP electrode.

The DirectLine® architecture consists of an electronics transmitter module and a sensor which may be mounted integral to the transmitter or remotely eliminating the need and added cost of a separate analyzer or transmitter. The transmitter modules are intrinsically safe, in a weatherproof, corrosion – resistant sealed composite enclosure.   

Completing the system is a unique Honeywell sensor connected to the sensor side of the transmitter and a 4-20 mA weatherproof output cable on the power/output side. The transmitter is designed for outside use in harsh environments where moisture, dust, and chemical attack may be present.  For submersion or special mounting applications, a remote mounting option is available which connects the electronics module to the ORP electrode via a cable. The module can be mounted on a 2-inch pipe, wall or DIN rail.

Signal output of the DirectLine® transmitter is a standard 4-20mAdc output proportional to ORP which may be connected to any host monitor or control device that accept4-20mA loop powered inputs including: :

• Single loop Honeywell or competitive controllers
• Honeywell’s HC900 modular control systems
• PLC’s with analog inputs
• DCS systems
• Honeywell’s Trendview data acquisitions systems