No.6425-00
Immersion Probe
640S-2
JAN code : 4974425642595
Calibration : Not available
JCSS Accredited Calibration : Not available
This is a waterproof sensor probe for SK-620PH, SK-620PHII, SK-625PH Handy Type pH Meter and SK-650PH Desktop Type pH Meter that can be immersed in a target such as liquid in a tank. Available to extend the length of a cord by multiple of a meter.
Feature
■ Its waterproof property enables the probe to be immersed in a target.
Description
■ Notice
- The sensor may be damaged to shorten its life if it is used for liquids such as organic solvents, oils, adhesives, surface-active agents, strong acids (pH 0 to 2), or strong alkalis (pH 12 to 14).
- The reading may become unstable if you measure pure or tap water.
- If you measure food or drink, take a sufficient quantity of a sample in a separate container so that the end of the sensor is immersed at least 3 cm in the sample. Do not eat or drink the sample after measurement.
- The sensor is made of glass, so take a great care in handling. Be careful not to injure yourself when it is broken.
■ For 640S-1 and 640S-2 probes, the length of the probe can be extended by multiple of a meter. Ask us for details.
■ Due to the shape, calibration solutions attached to SK-620PHII cannot be used with 640S-2.
Specifications
| Cat. No. | 6425-00 | |
| Product name | Immersion Probe | |
| Model name | 640S-2 | |
| Measuring range | pH | 2.00 to 13.00 |
| Temperature | 0.0 to 50.0°C | |
| Accuracy | pH | ±0.03 |
| Temperature | ±0.5°C | |
| Detectors | pH | Glass electrode with non-refillable KCl solution of 3.3 mol/L |
| Temperature | Thermistor | |
| Operation ambient | 0 to 50°C | |
| Liquid junction | Ceramic type | |
| Materials | Electrode protection tube, cable: PVC | |
| Dimensions |
Probe: 34 mm diameter x 147 mm (L) Cable: 3 m (L) | |
| Weight | 365 g | |
| Standard accessories | Electrode cap x1, electrode protection cap x1 | |
