All Myron L Monitor/controllers feature a highly refined and precise Temperature Compensation circuit. This feature perfectly matches the NERNST equation correcting the displayed reading to 25°C. The TC may be disabled to conform with USP requirements.

Built-in electronic calibration allows for fast quality checks without buffers. (Note: for maximum system accuracy buffers are recommended).

A push-to-test button makes set point 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 set point readings.

All 720 Series II models feature an IP65/ NEMA 4X water resistant and corrosion proof rated enclosure. Compact in size, at 152 x 122 mm/6 x 4.8 in., the 720 Series II models are suitable for panel, bench or surface mounting.

Additional options include a Remote Alarm™ model RA.

In addition, these reliable sensors feature an integral temperature sensor to ensure accurate and rapid automatic temperature compensation.

Several choices of sensors are available, in 1/2” MNPT or 3/4” MNPT, depending on the demands of the application. The basic pH sensor utilizes the standard round glass electrode with a single reference junction. The basic ORP sensor utilizes a Platinum electrode with a single reference junction. See 720II Sensor Selection Guide for additional information.

• Process Control
• Reverse Osmosis
• Seawater Desalination
• Waste Treatment
• Food Processing
• Plating
• Power Plants
• Laboratories
• Printing
• Paper & Pulp
• Boilers & Cooling Towers
• Potable Water
• Waste Water Treatment
• Swimming Pools & Spas
• Bleach Manufacturing
• Reduction of Chromate Waste
• Environmental

• pH 0-14 or ORP ± 2000 mV
• Choice of 3½ digit display or analog meter
• Advanced 'Isolated' circuitry
• Automatic temperature compensation to 25°C (NERNST equation)
• Isolated 0-10 VDC Recorder Output standard 
• IP65/NEMA 4X water resistant and corrosion-proof enclosure
• Built-in electronic calibration
• Single set point/alarm standard
• Adjustable set point hysteresis 
• Solid State 24 VDC Output
• 10 amp relay operates on choice of increasing or decreasing reading
• Push-to-test set point check
• Internal set point discourages unauthorized adjustment
• Selectable 115/230 VAC
• Unique, easily installed sensors
• CE Certified
• Unique, easily installed sensors
• Heavy duty “F” model sensors may be installed in ANY direction including inverted

Pressure/Temperature Limits: P72S: Intermittent use up to 50 psi/690 kPa 100°C/212°F. High Temperature models available, see pH/ORP Sensor Selection Guide.

Cable: 5 wire, 24 ga. shielded, 10 ft./3 meters standard. 25 and 100 ft./8 and 30 meter lengths available.

Material: 1/2' MNPT: CPVC body. 3/4' MNPT: Ryton®* body.

Dimensions: P72S typical: overall length 165 mm/6.5 in., body 127 mm/5 in., electrode length 19 mm/.75 in.