Hach-Lange PHC725 - Manual (Page 2)

Specifications Details
Storage solution Saturated KCl
Minimum sample depth 14 mm (0.55 in.)
Dimensions Body diameter: 12 mm (0.47 in.)
Body length: 103 mm (4.1 in.)
Total length: 200 mm (7.87 in.)
Cable length: 1 m (3.28 ft)
Cable connection M12 digital output and connector compatible with HQd meters
1 Radiometer Analytical’s Red Rod technology: Encapsulation of reference elements with a red protection tube.
Product overview
The probe is a digital pH combination electrode with refillable electrolyte, a glass body
and an integrated temperature sensor. The probe is for laboratory use and measures pH
in general aqueous samples.
Note: Do not use the probe with organic solvents, emulsions, samples with high solids content or
high alkaline sample types.
A 59-mL bottle of reference electrolyte filling solution (saturated KCl solution) is included
with the probe. Refer to
Figure 1 .
Figure 1 Probe overview
1 Probe soaker bottle 5 Probe soaker bottle holder
2 Filling-hole cap 6 Reference junction
3 Protective tape and filling-hole 7 Glass bulb and temperature sensor
4 Cable, 1 meter (3.28 ft)
Preparation for use
Prepare the probe before a calibration or a sample measurement.
1. Turn the probe soaker bottle cap counter-clockwise to loosen the cap.
2. Remove the soaker bottle from the probe.
3. Fully rinse the reference junction and the glass bulb with deionized water to remove
all of the storage solution or possible salt particles. Dry with a no-lint cloth.
4. Remove the protective tape from the filling hole before initial use (refer to Product
overview on page 2). Discard the protective tape.
2