Industrial Online pH/ORP Meter WXZJ-PH8816 Online Acid-Alkali Detector Acid-Base Analyzer

Applications
Widely used in wastewater treatment, pure water, circulating water, boiler water systems, as well as online pH/ORP monitoring in processes such as electronics, aquaculture, food, printing and dyeing, electroplating, pharmaceuticals, fermentation, and chemical industries. It offers powerful functionality in environmental monitoring and remote system applications, including surface water and pollution source discharge monitoring.

Main Features

◇ Large-screen dot-matrix LCD display, Chinese menu operation, multi-parameter simultaneous display.
◇ Automatic temperature compensation function.
◇ Communication function: Equipped with RS-485 communication interface (partially compatible with MODBUS protocol) (optional), convertible to RS-232. The 4–20 mA current output corresponding to pH values can be arbitrarily set.
◇ Optional PC online data acquisition software for data collection and processing.
◇ Notebook function: pH and ORP modes can each store 50 measurement data points, allowing users to record data as needed.
◇ Automatic recognition of standard solutions, factory reset capability.
◇ Watchdog function: Ensures the instrument does not freeze.
◇ Power-off data retention >10 years.

Technical Specifications

◇ Measurement range: -2.00–16.00 pH, -1999–+1999 mV (ORP), -10–130.0°C
◇ Resolution: 0.01 pH, 1 mV, 0.1°C
◇ Accuracy: ±0.02 pH, ±1 mV, ±0.3°C
◇ Stability: ≤0.01 pH/24h
◇ pH standard solutions: 6.86/4.00/9.18???7.00/4.00/10.01
◇ Temperature compensation: 0–99.9°C (pH) PT1000
◇ pH calibration range: Zero point ±1.45 pH; Slope ±30%
◇ Control interface: Two sets of ON/OFF relay contacts for high and low alarm control.
◇ Signal isolated output: 4–20 mA isolated protection output
◇ Relay: Hysteresis adjustable, relay load 10A 220VAC
◇ Operating conditions: Ambient temperature 0–60°C, relative humidity ≤90%
◇ Input impedance: ≥1×1012 Ω
◇ Output load: Load <750 Ω (4–20 mA)
◇ Operating voltage: 220VAC±10%, 50/60Hz, or order DC24V and DC12V power supply
◇ Weight: 0.9 kg
◇ Mounting: Panel mounting
◇ Protection rating: IP65