General Purpose Probe

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.

Specifications

Cat. No.		6424-00
Product name		General Purpose Probe
Model name		640S-1
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 refillable KCl solution of 3.3 mol/L
	Temperature	Thermistor
Operation ambient		0 to 50°C
Liquid junction		Sleeve type
Materials		Electrode protection tube: Lead-free glass Cable: PVC
Dimensions		Probe: 12 mm diameter x 156 mm (L) Cable: 1 m (L)
Weight		78 g
Standard accessories		Electrode cap x1, electrode protection cap x1, spare internal solution 35 mL x1, instruction manual