Mask acidity meter/desktopMask acidity meter/desktopModel PHS-3C

Instrument features: 3 1/2 digit LED digital display, with manual temperature compensation function, can be calibrated with one or two points, with international standard markings, equipped with our factory's E-201-C pH composite electrode
Technical indicators:
1. Instrument level: 0.01 level
2. Measurement range: PH: (0~14.00) pH mV: (0~± 1999) mV (automatic polarity display)
3. Small display unit: 0.01 pH, l mV
4. Temperature compensation range: (0~60) ℃
5. Basic error of electronic unit: PH: ± 0.01 pH mV: ± 1 mV ± 1 word
6. Basic error of the instrument: ± 0.02 pH ± 1 word
7. Input current of electronic unit: not greater than 2 × 10-12A
8. Input impedance of electronic unit: not less than l × 1012 Ω
9. Temperature compensator error: ± 0.01 pH
10. Repetitive error of electronic unit: pH：0.01 pH mV： l mV
11. Instrument repeatability error: not greater than 0.01 pH
12. Electronic unit stability: 0.01 pH ± 1 word/3h
13. Dimensions 1 × b × h, mm：260×190×70
14. Weight: 1.5kg
15. Normal usage conditions
a) Environmental temperature: (5-40) ℃;
b) Relative humidity: not exceeding 85%;
c) Power supply: AC (220 ± 22) V, (50 ± l) Hz;
d) There is no other magnetic field interference except for the Earth's magnetic field.