PHSJ-4A Laboratory pH MeterDetailed product description：

The main features of PHSJ-4A laboratory pH meter are:

Blue screen dot matrix LCD display, Chinese operation interface
Automatic and manual temperature compensation, automatic calibration, automatic calculation of electrode percentage theoretical slope
The test results can be stored, deleted, viewed, and printed; Up to 200 sets of measurement data can be stored
There is an RS-232 interface that can be connected to a TP-16 printer or communicate with a computer using lightning data acquisition software
By adjusting the equipotential point and selecting specialized electrodes, the pH values of ultrapure water, pure water, and boiler water can be measured
Equipped with our factory's E-201-C pH composite electrode; T-818-B-6 Temperature Electrode

Main technical indicators:
Instrument level: 0.01 level
1. Measurement range:
pH：(0.000~14.000)pH
mV：(0~±1999.9)mV
Temperature: (-5~105.0) ℃
2. Resolution:
pH：0.1pH、0.01pH、0.001pH
mV：0.1mV
Temperature: 0.1 ℃
3. Basic error:
PH: ± 0.005pH ± 1 word
MV: ± 0.2mV (within the range of ± 399.9mV)
± 0.03% (FS) (within other ranges)
Temperature: ± 0.3 ℃
4. Input impedance: not less than 3 × 1012 Ω
5. Stability: ± 0.005pH ± 1 word/3h
6. Automatic: (0.0~60.0) ℃; Manual temperature compensation range: (-5.0~105.0) ℃
7. Temperature of the tested solution: (5-60) ℃
8. Power supply: DC universal power supply (+9V~+15V, 500mA, internal positive, external negative)
9. Dimensions (mm): 290 × 200 × 70
10. Weight: Approximately 1kg