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The unique circuitry of our 750 Series II Resistivity Monitor/controllers guarantee accurate and reliable measurements.  Drift free performance is assured by "field proven" electronics, including automatic DC offset compensation and highly accurate drive voltage.

 

Since temperature compensation is at the "heart" of accurate water measurement, all Myron L Monitor/controllers feature a highly refined and precise TC circuit.  This feature perfectly matches the water temperature coefficient as it changes.  All models corrected to 25°C.  Uncompensated models available to conform with USP 25.

A push-to-test button makes setpoint checks easy, while the internal alarm set discourages unauthorized adjustments.

Standard on all controller models is a heavy-duty 10 amp output relay, operating on either increasing or decreasing readings.  Bright green/red LEDs indicate above/below setpoint readings.

 

Applications

Deionization (DI) and distillation ultrapure water treatment systems

Electronics
Pharmaceuticals
Laboratories
Food Processing
Plating
Power Plants
Boiler Condensate
Process Control

 

All 750 Series II models feature an IP65/NEMA 4X water resistant and corrosion-proof rated enclosure while being a compact size at 6x4.8 inches (15.2x122 mm).  They are suitable for panel, bench or surface mounting.

Accessories include a 3 Sensor input, a 3 Range switch (both installed separately from the monitor/controller), and a RA™ - Remote Alarm.  See pricelist (below) for a complete list of options and accessories.  Custom and OEM Models available.  Contact us with your requirements.

 

Features

Seven Ranges:  0-200 Kilohms to 0-20 Megohm-cm
Choice of analog meter or 3½ digit LCD
Automatic temperature compensation to 25°C
0-10 VDC Recorder Output
IP65/NEMA 4X water resistant & corrosion proof enclosure
Single setpoint/alarm
Adjustable setpoint hysteresis 
24VDC Solid state output
10 amp relay operates on choice of increasing or decreasing reading
LED's show "above/below" alarm/control status
Push-to-test set point check
Internal set point discourages unauthorized adjustment
Selectable 115/230 VAC
Reliable, easily installed sensor
CE Approved
Options Include
Second Alarm/control Module
4-20 mA Isolated Output
Piezo Electric Alarm
3½ Digit Backlit Display
Temperature Module
24 VAC and 24 VDC Isolated Power

 

Sensors:

All 750 II Resistivity models require a CS10 series sensor.  This reliable sensor features two integral thermistors to ensure accurate and rapid automatic temperature compensation. The sturdy polypropylene standard bushing is modular for easy, inexpensive replacement. A PVDF or 316 stainless steel bushing can also be ordered. The metal portion is available in either 316 stainless steel (standard) or titanium.

Special Order CS40 and CS41, High Temperature/High Pressure sensor available upon request.

resistivity, sensor, monitor, controller, meter

Specifications:

Constant:
0.05
Temperature Compensation: Two integral temperature sensors provide automatic TC to 25°C.
Pressure / Temperature Limits: 100 psi/690 kPa @ 212°F/
100°C.
Bushing: Modular Polypro py lene threaded 3/4" NPT. 1/2" PVDF (standard) or 316 stainless steel fi ttings (optional).
Wetted Materials: Electrodes: 316 stainless steel (standard) or titanium (optional).
Cable: Shielded 10 ft./3 meters standard; 25 and 100' ft./8 and 30 meter lengths available.
Dimensions: Metal portion 1.2 L x 0.5 Dia. in./30 L x 13 Dia. mm; Overall length 3.6 in./91 mm
 
Additional Information
Data Sheet
(includes specs, options & order info)

click here: PDF
Price List click here: PDF
Sensor Price Listclick here: PDF
Replacement Partsclick here: PDF
OEM Parts click here: PDF
Range Selection Guide  click here: PDF
Sensor Selection Guide  click here: PDF
Operation Manual  click here: PDF
CE Certification Information  click here: HTML


 
Limited Warranty
All Myron L Monitor/controllers and sensors have a Two (2) Year Limited Warranty. If any monitor/controller or sensor fails to function normally, return the unit to the factory prepaid. If, in the opinion of the factory, failure was due to materials or work man ship, repair or replacement will be made without charge.  A reasonable service charge will be made for diagnosis or repairs due to normal wear, abuse or tampering. Warranty is limited to the repair or re placement of monitor/controller or sensor only. The Myron L Company assumes no other responsibility or liability.

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