New Monitor/Controller Features Seven Parameters in One Unit

 The Myron L Company 900 Series multiparameter water quality monitor/controller is easy to install, easy to use, and does the job of multiple monitors and controllers.

The 900 Series multiparameter monitor/controller includes everything required to simplify water quality management of municipal unit processes in one flexible, powerful instrument. Users can simultaneously monitor and control critical water quality parameters through multiple inputs/outputs with the accuracy and reliability the Myron L Company has come to be known for. The 900 Series is user-intuitive with an LCD touch-screen GUI along with pluggable terminal blocks for quick and easy equipment installation and configuration.

Seven inputs make it possible to monitor all the most common water quality parameters simultaneously: two conductivity, resistivity, TDS or salinity; one pre-amplified pH or ORP; one BNC pH or ORP; one 0-20/4-20 mA; one RTD temperature; and one flow/pulse. Percentage rejection is available as a derived value.

Advanced conductivity and TDS functions feature three preprogrammed solution modes, KCl, NaCl, and Myron L’s own 442 Natural Water Standard. You can also program a user solution mode when the constituents and behavior of the solution are known. The ability to match the solution mode to the actual characteristics of the water being monitored instead of using one set solution model yields far greater precision conserving chemicals and ensuring regulatory compliance. Temperature compensation is automatic to 25 degrees C but can be disabled by the user if required.

The pH/ORP input channel is designed for use with Myron L pre-amplified pH and ORP sensors. These sensors contain precision circuitry that increases accuracy and permits application of the sensors over greater distances. A 0-20/4-20 mA input accepts user-defined 0- to full-scale values and units of measure for an array of sensor types. The 900 Series is also low maintenance and user serviceable with both electronic and wet calibration functions.

Additional features

Outputs include up to three relays; two remote alarms; one 0-20/4-20 mA; one 0-5/0-10 VDC; and one RS-485 ASCII serial output. Relays output to any user-supplied control equipment requiring up to 250 volts each and can trigger on any input parameter. The 0-20/4-20 mA output can transmit a signal for any input parameter. 0-5/0-10 VDC can be scaled to optimize resolution and can output to a recorder, PLC or SCADA system. 0-1 VDC is possible with an optional resistor. Hysteresis values can be specified by the user or automatically set by the 900 Series to prevent chatter.

The user-adjustable cell constant (conductivity, resistivity, TDS and salinity) and sensor cable length (conductivity, resistivity, TDS, salinity, pH and RTD) assure precise measurements from sensor to sensor. Administrator and operator password protection levels prevent unwanted tampering. A brightly colored red, yellow and/or blue LCD background instantly alerts the user to the solution status. And a 1/4 DIN size chassis makes it easy to mount.


Myron L Company has been a leading manufacturer of water quality instrumentation for over 60 years. Because it is a privately held, customer-focused corporation, it is able to remain committed to excellence in accuracy, reliability and simplicity while investing heavily in research and development. The result is a product line that includes innovative, high-performance multiparameter monitor/controllers, handheld meters and pocket testers built to last with convenient features like touch-screens and Bluetooth connectivity. The company offers a wide variety of measurement parameters including conductivity, resistivity, TDS, salinity, pH, ORP, free chlorine equivalent, dissolved oxygen, nitrate concentration, hardness, alkalinity, temperature, flow, percent rejection and more. The company also backs its products up with live service and technical support for life.

760-438-2021 | info@myronl.com | www.myronl.com



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