Main features:
1. Complies with the DL/T677-2009 standard for the power industry of the People's Republic of China.
2. The transmitter of pH meter is divided into two types: for ordinary water (pure water) and ultrapure water.
3. It has two functions: pH electrode slope temperature compensation and measured solution temperature compensation, and the solution temperature compensation coefficient can be set.
4. Two point and one point automatic calibration, the standard sample can be customized by the user to meet the measurement requirements of different ranges.

Working conditions:
1. Environmental temperature: 5-50 ℃
2. Relative temperature: ≤ 85
3. Water sample temperature: 5-45 ℃
4. Water sample flow rate: ≤ 350ml/mm
5. There are no corrosive gases in the surrounding air, and there are no influential vibrations or strong electromagnetic fields present.
6. Working power supply: AC220V ± 10%, 50Hz, 30W
If the user has other requirements, a statement must be made when placing an order.

Technical indicators:
1Measurement range: 0-14PH
2. Basic error: ≤± 0.05pH (ordinary water), ≤ 0.1pH (ultrapure water)
3. Reproducibility: ≤± 0.03pH (ordinary water), ≤ 0.05pH (ultrapure water)
4. Stability; 24 hours, ≤ ± 0.03pH (ordinary water), ≤ 0.05pH (ultrapure water)
5. Response time: ≤ 60 seconds (stable value 90%)
6. Input impedance: ≥ electrode internal resistance × × 10³Ω
7. Temperature compensation range: 5~45 ℃
8. Temperature measurement range: 0-60 ℃

Resolution: 0.01 ℃ Accuracy: ± 0.3 ℃
9. Output signal:

Current: 2-channel 4-20mA (Rl ≤ 500 Ω) Communication: RS485

Alarm: normally open relay contact 1A/24VDC or 1A/120VAC
10External dimensions:144×144×135mm

Hole size:138×138mm