1、 Product Introduction:
Online pH meter PH3000 is a new generation of intelligentWater quality detectorFeaturing Chinese menu operation, high stability, superior repeatability, and multifunctionality, it can accurately measure the pH value and redox potential in solutions（ORP）And temperature values. Widely used for online detection of pH values in solutions such as environmental protection, sewage treatment, thermal power, aquaculture, food processing, printing, metallurgy, pharmaceuticals, fermentation, chemical engineering, and tap water.
2、 Main features:
● Large screen dot matrix LCD display, Chinese menu operation, and simultaneous display of multiple parameters.

● Automatic temperature compensation function
Communication function: Equipped with RS-485 communication interface (partially compatible with MODBUS protocol, optional), capable of converting to RS-232. The pH value corresponding to the 4-20 mA current output can be set arbitrarily.
● Optional upper computer online acquisition software from our company for data collection and processing.
● Automatically recognize standard solution and restore factory settings.
Watchdog function: Ensure that the instrument panel does not crash.
The core components are all from well-known foreign brands.
● Power failure protection>10 years
3、 Technical indicators:
● Measurement range:- 0.00~14.00PH，- 1999~1999mV (ORP)，0~100.0℃
Resolution: 0.01PH, 1mV, 0.1 ℃
Accuracy: ± 0.02 PH, ± 1mV, ± 0.3 ℃
Stability: ≤ 0.01pH/24h
● PH standard solution: 6.86/4.00/9.18 7.00/4.00/10.01
Temperature compensation: 0~99.9 ℃ (pH)
PH correction range: zero point ± 1.45 pH; Slope ± 30%
Control interface: Two sets of ON/OFF relay contacts, divided into high point and low point alarm control.
● Signal isolation output: 4-20mA isolation protection output
● Relay: Relay hysteresis can be set arbitrarily, relay load 10A 220VAC
Working conditions: ambient temperature of 0-60 ℃, relative humidity ≤ 90%
● Input impedance: ≥ 1×1012Ω
Output load: load<500 Ω (0-10mA), load<750 Ω (4-20mA)
Working voltage: 220VAC ± 10%, 50/60Hz
● Size: 96 × 96 × 115 mm
● Hole size: 91 × 91mm
Weight: 0.9Kg