ASTM D1287 Engine Coolant, Antifreeze and 

Antirust Agent PH Value Tester

Model: JF0069

Product introduction

This instrument is suitable for testing antifreeze, rust inhibitor and coolant as well as used or unused water dilutions of these product concentrates. It is not suitable for detecting solid rust inhibitor. When equipped with the corresponding ion selective electrode, it can measure a variety of corresponding ion concentrations and can be used as Potentiometric titration measurement display instrument, the instrument has the function of temperature measurement.

Technical Parameter

Applicable standard: ASTM D1287

1. Instrument level: 0.01

2. Measuring range:

pH: (-2.00～16.00) pH

mV: (-1999～1999) mV

Temperature: -5.0～105.0（℃）

3. Basic error of electronic unit:

pH: ±0.01

mV: 0.1% (FS)

Temperature: 0.3 (℃)

4. Input impedance: 3×1012Ω

5. Stability: ±0.01

6. Temperature compensation range: 0～100 (℃)

7. Power supply: AC 110～230(V)

Performance characteristics

1. Automatic calibration, the calibration program is started by a combination of keys, effectively avoiding the loss of calibration data due to misoperation.

2. There are as many as 3 groups of standard solutions to choose from, which can be suitable for various usage habits.

3. The electrode status and slope are displayed, reminding the electrode usage at any time.

4. Automatic end-point locking function to eliminate human reading errors.

5. It can measure pH, redox potential and ion concentration by standard curve method.

6. Automatic and manual temperature compensation intelligent switching.

7. After shutdown, the calibration data can be maintained for a long time for 10 years.

8. Equipped with digital interface RS-232