Dalian Yheng Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of din-rail mount ph analyzer in China. Welcome to buy high quality din-rail mount ph analyzer in stock here from our factory. If you have any enquiry about customized service, please feel free to email us.
Technical Specifications
| Item | Specifications |
|---|---|
| Measuring Parameter | pH and solution temperature |
| pH Range | 0.00‑14.00pH |
| pH Resolution | 0.01pH |
| pH Accuracy | ±0.02pH |
| Temp. Range | 0~99.9℃, expandable ‑10~120℃ |
| Temp. Accuracy | ±0.5℃ |
| Input Impedance | ≥10¹²Ω |
| ATC Range | 0‑99.9℃, 25℃ reference conversion available |
| Analog Output | Galvanic isolated 4‑20mA, error ≤±1%FS |
| Alarm Relay | High/low alarm relay, AC220V 3A, with hysteresis function |
| Data Logging | 72 points for latest 3‑day historical data |
| Communication | RS485 Modbus‑RTU, isolated version optional |
| Power Supply | AC220V or DC24V optional |
| Mounting | Standard 35 mm DIN rail mounting |
| Ambient Condition | 0‑60℃, RH＜85%, IP20 for cabinet installation |
| Calibration | 2‑point buffer calibration & pH offset correction |
Advantages
- High‑precision signal processing with ≥10¹²Ω high‑impedance input circuit. Opto‑coupled isolated 4‑20mA output ensures strong anti‑interference performance for long‑distance signal transmission, with good long‑term stability of ±0.02pH/24h.
- Multiple practical built‑in functions: real‑time clock, historical data logging, optional auto‑flush relay for electrode cleaning, and 25℃ reference conversion specially for power‑plant pure‑water measurement.
- Integrated high/low alarm relays with hysteresis setting to prevent relay chattering. Directly control acid/alkali dosing pumps and solenoid valves for automatic pH closed‑loop control.
- User‑friendly calibration including 2‑point buffer calibration and offset adjustment. DIN‑rail clip‑on installation plus removable terminal blocks simplify cabinet wiring and maintenance.
- Modbus‑RTU communication for seamless connection with PLC and SCADA systems. Industrial watchdog chip guarantees reliable continuous operation without crash.
- Widely suitable for online continuous pH monitoring in thermal power, chemical, metallurgy, wastewater, pharmaceutical and tap‑water industries.
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