On-line PH meter with RS485/RS232 output for sewage treatment
Introduction
This product is a new - generation intelligent water quality detector independently developed by our company. It features English menu operation, high stability, excellent repeatability and multiple functions. It can accurately measure the pH value and temperature value in solutions. It is widely used for the online detection of pH values in solutions in fields such as environmental protection, sewage treatment, thermal power generation, aquaculture, food processing, printing, metallurgy, pharmacy, fermentation, chemical industry and tap water.
Technical Parameters
Measuring range | 0.00~14PH |
Resolution | 0.01PH,1mV,0.1℃ |
Accuracy | ±0.02PH, ±1mV, ±0.3℃ |
Stability | ≤0.01 PH/ 24h |
Standard liquid |
6.86/4.00/9.18, 7.00/4.00/10.01 |
Temperature compensation | 0~99.9℃(PH) |
PH calibration range | 0±1.45PH; slope ±30% |
Control interface | two group of ON/OFF relay contacts are divided into upper and lower limit alarm control. |
Signal isolation output | 4~20mA isolation protection output and RS485 |
Relay | the relay hysteresis is arbitrarily set, relay load 3A 220VAC |
Working conditions | Ambient temperature is 0~60℃, relative humidity ≤90% |
Input impedance | ≥1×1012Ω |
Output load | <750Ω(4-20mA) |
Working voltage | 220VAC ±10%, 50/60hz or DC24V and DC110V |
Dimensions | 96×96×115 mm |
Hole-cutting Size | 92×92mm |
Weight | 0.9Kg |
Protection level | IP57 |
Features