This manual introduces the basic operation of the Checker® HI 98103 pH tester, including steps on how to measure pH, temperature, TDS, and EC, and how to calibrate and maintain the instrument.
The document serves as a user guide for the Checker® HI 98103, a portable pH meter equipped with a replaceable HI 1270 electrode. It outlines preliminary examination steps, warranty terms, and essential safety recommendations regarding electrostatic discharge and electrical shock hazards.
The manual details the operational procedures including initial preparation by soaking the electrode, connecting the device, and performing measurements. It also covers battery replacement instructions and provides a step-by-step guide for two-point calibration using pH 7.01 and pH 4.01 (or pH 10.01) buffer solutions.
| Range | 0.00 to 14.00 pH |
|---|---|
| Resolution | 0.01 pH |
| Accuracy | +0.2 pH (@20°C) |
| Calibration Method | Manual, 2 points |
| Included Electrode Model | HI 1270 |
| Operating Temperature | 0 to 50°C |
| Battery Type | 2x1.5V alkaline |
No, you should never use distilled or deionized water for storage purposes.
For best results, the user is advised to calibrate frequently.