PXD-2 typegeneralThe ion meter is a digital pX meter that uses a 3.5-digit LCD digital display. This machine can be equipped with various ion selective electrodes and is suitable for sampling and measuring the pX value and potential (mV) value of aqueous solutions in laboratories of colleges, research institutes, and industrial and mining enterprises. There are six instrument measurement options: mV; pX⁺¹；pX^-1；pX⁺²；pX^-2PH can be used with monovalent or divalent anion or cation selective electrodes. When measuring monovalent cations, set pX+1; when measuring monovalent anions, set pX-1; when measuring divalent cations, set pX+2; when measuring divalent anions, set pX-2; when measuring pH, set pH; when measuring electrode potential, set mV for measurement.

Characteristics of the instrument

● PXD-2 typegeneralThe ion meter adopts single-chip technology, which makes the operation simple and convenient, and the digital display is intuitive and correct.

The instrument hasAutomatic temperature compensation functionWhen the temperature electrode is connected, the instrument enters automatic temperature compensation and displays the current temperature; when the temperature electrode is not connected, the instrument enters manual temperature compensation and displays the manual temperature setting value.

The instrument is calibratedThere is an electrode slope prompt functionFacilitate users to evaluate electrode performance and decide whether to replace the electrode.

The instrument has a beautiful and lightweight appearance.

Main technical parameters

• Measurement range: pX±1：0~14．00pX ;pX±2：0~14．00pX

mV：0~±1999mV (automatic polarity display)

2. Small display unit: 0.01 pX, lmV

3. Temperature compensation range: 0~60 ℃

4. Range of equipotential regulation: (0.00~8.00) pX

5. Basic error of electronic unit: pX±1：±0.01 pX±L word

pX±2：±0.01pX±L word

mV：±0.1%(FS)±L word

6. Basic error of the instrument:±0.02pH±One word

7. Input current of electronic unit: not greater than 2×10^-12A

8. Input impedance of electronic unit: not less than l×10¹²Ω

9. Temperature compensator error:±0.01 pX±L word

10. Repeatability error of electronic unit: pH: not greater than 0.01 pX

MV: not greater than lmV

11. Instrument repeatability error: not greater than 0.01pX

12. Electronic unit stability: 0.01pH±L words/3h

13. Dimensions 1 × b × h, mm: 240 × 180 × 70

15. Weight: 1.0kg

16. Normal usage conditions:

(1）Environmental temperature: (5-40) ℃ (2) Relative humidity: not exceeding 80%

(3) Power supply: AC (220)±22)V；(50±l)Hz

(4) No significant vibration (5) No external magnetic field interference except for the Earth's magnetic field