Products Description
Industrial online pH meter is an intelligent online instrument used to test the pH value of water quality. It has the characteristics of complete functions, stable and reliable performance, easy operation, easy installation and maintenance, and is suitable for various fields such as pH testing and control in industrial enterprises.
Features
- Adopting a 3.0 inch 128 * 64 dot matrix screen with Chinese menu display, easy to operate.
- Isolated 4-20mA current output, with adjustable current output and low interference.
- Two independent control outputs for high and low points, with adjustable range.
- Cleaning function output, time adjustable (optional).
- Temperature measurement function, capable of automatic/manual temperature compensation.
- Isolation RS485 communication output function.
- Password function.
- Backlight control function
- Choose from 3 calibration methods, display in Chinese for easy operation.
- Check the electrode calibration performance.
Technical Parameters
| Measurement project | pH ORP TEMP | Communication output | RS485 |
| Measurement range | 0~14pH -2000mV~2000mV -10~135 ℃ | Input impedance | ≥ 1 × 1012 Ω |
| Resolution | 0.01 pH 1mV 0.1 ℃ | Alarm indication | Two sets of alarm lights display high and low points |
| Accuracy | ± 0.01pH ± 1mV ± 0.2 ℃ | Power supply | 220VAC, 50Hz, or 24VDC (see product identification) |
| Stability | ≤ 0.02pH/24h ≤ 1mV/24h ≤ 0.2 ℃/24h | Power | 3W |
| Standard solution | 6.86/4.00/9.18 Or any standard solution of 7.00/4.00/10.00/ Two point calibration or one known concentration calibration Two point calibration/ | External dimensions | 235 * 210 * 115mm |
| Correction range | Zero point ± 1.50pH, slope ± 30% | Installation method | Wall mounted installation |
| Temperature compensation | manual temperature compensation or Pt1000 automatic temperature compensation | Weight | 0.65Kg |
| Display | 128 * 64 dot matrix Chinese display | Working environment temperature | -5~55 ℃ |
| Control mode | Hi/Lo, two independent relay control outputs; | Relative humidity of air | ≤ 90% |
| Relay load maximum | AC 220V, 3A resistive load | No strong magnetic field interference around except for the Earth's magnetic field | |
| Signal output | 4-20mA isolated signal output, programmable, maximum load 500 Ω |
Matters Needing Attention
1. Please carefully read and understand the user manual before installation to avoid incorrect wiring that may cause damage to the instrument.
2. Please choose a well ventilated location for installation, pay attention to the waterproofing of instruments and cables, and avoid using them in corrosive environments.
3. Do not power on the instrument until all wiring is completed to avoid accidents.
4. The transmission of electrode signals must use RG58 high insulation special coaxial cables and cannot be replaced by ordinary wires casually, otherwise incorrect measurement results will be generated.
5. The controller inside the instrument is a low current relay. If you want to control equipment with high power, please connect an external relay with a high current capacity to avoid burning out the internal relay of the host.
Instrument size (available in panel mounted and wall mounted forms, please feel free to inquire by phone)
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