The 757II is an analog conductivity/TDS monitor/controller in the 750 Series II, featuring a 2.5 in./63 mm analog display and a heavy-duty 10 amp SPDT relay rated for 250 VAC or 30 VDC, operable on increasing or decreasing readings. It has IP65/NEMA 4X water-resistant and corrosion-proof ABS enclosure measuring 152 x 122 x 96 mm / 6 x 4.8 x 3.8 in., and supports 115/230 VAC input voltage. The unit includes automatic temperature compensation to 25°C over 0-100°C, adjustable setpoint hysteresis from 0.3-3% of full scale, and built-in electronic calibration compliant with USP requirements. Red and green LEDs indicate alarm status, and a push-to-test button allows setpoint verification without unauthorized adjustment. All features are shared across the 750 Series II family.
The unique circuitry of the 750 Series II Conductivity Monitor/controllers guarantees 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. The TC may be disabled to conform with USP requirements.
Built-in electronic calibration allows for fast quality checks without standard solutions. (Note: for maximum system accuracy standard solutions are recommended).
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 or below setpoint readings.
All 750 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., they are suitable for panel, bench or surface mounting.
Additional options include a 3 Sensor Input Switch and/or a 3 Range Switch and a Remote Alarm™ model RA.
| Myron L Company | |
|---|---|
| Product Category | Water Quality Testing Instruments |
| Product Number | 757II |
| Product Name | 750 Series II Analog Conductivity/TDS Monitor/Controller |
| Water Quality Parameters | Water Quality Measurement Instrument; Measures Conductivity / Dissolved Solids |
| Form Factor | Lab / Benchtop; Panel |
| Instrument Specific Features | Automatic Temperature Compensation |
| Accuracy | 2 ±% Full Scale |
| Conductivity Range | 0.0 to 200000 µS/cm |