I.Production Overview
A resistivity meter, also known as a resistivity monitor, is an online panel-mounted instrument that simultaneously displays resistivity and temperature, with a low-resistivity alarm function. It is widely used in industries such as pharmaceuticals, electronics, and chemicals for online monitoring of industrial process water quality. Utilizing single-chip microcomputer technology, it allows free setting of the temperature coefficient of pure water, electrode constant, and low-resistivity alarm threshold via panel buttons, making it an ideal supporting instrument for various small and medium-sized pure water equipment.
A resistivity meter mainly consists of five parts: (1) a data acquisition system, (2) a signal generator and amplifier, (3) a transformer, (4) a sample mold, and (5) a small current sensor.
| Technical Indicator | Specification |
| Measurement range | 0~18.25 MΩ·cm |
| Accuracy | 2.0% (FS) |
| Stability | ±2×10⁻³ (FS)/24h |
| Medium temperature | 5~50℃ |
| Temperature compensation | Automatic compensation based on 25℃ |
| Display mode | 3 1/2-digit LCD display |
| Control output mode | ON/OFF relay output |
| Relay load capacity | AC 230V/5A Max; AC 115V/10A Max |
| Power supply | AC 220V±10% 50Hz |
| Environmental conditions | Temperature 0~50℃, relative humidity ≤85% RH |
| Matching electrode | 0.05 cm⁻¹ constant metal electrode |
| Dimensions | 48×96×100 mm (height × width × depth) |
| Mounting hole size | 45×91 mm (height × width) |
| Installation method | Panel-mounted |
IV:Photo
