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1. SPECIFICATIONS
The PH8ECP pH sensor, consisting of a complex glass electrode assembly, has high resistance
to corrosion in solutions involving highly concentrated chlorine (Cl
can be used to measure the pH of solutions in an electrolytic plant. This KCl filling type pH sensor is
incorporated in a flow-through type holder.
1.1
Standard Specifications
Measurement: Hydrogen ion concentration (pH) of a solution
Measurement principle:
Measuring range:
Weight:
Installation:
When a sensor is built into the submersion type holder, seal materials are required.
Contact your nearest Yokogawa service station or sales representative.
Ambient temperature limits:
Wetted part materials:
Body;
Earth eIectrode;
Liquid junction material;
Cable specifications: Four-conductor low-noise cable, O.D. approx. 6.5 mm;
Operating Conditions:
Solution temperature: -5 to 105 °C
Note: The maximum solution temperature also depends on the material of the holder.
Temperature detection element:
Solution pressure:
(When a flow-through type holder with a medium pressure KCl solution reserve tank is used,
the maximum solution pressure is limited to 500 kPa.)
Solution flow velocity: Maximum 2 m/sec
Solution flow rate:
Solution conductivity: 50 µS/cm or higher
KCl solution consumption: 3 mL/day or less (pressurized with 10 kPa)
Response time:
Glass electrode method
0 to 14 pH
Approx. 0.4 kg (including 3-meter cable)
Mounted in a flow-through type holder
-10 to 50 °C.
(Do not allow KCl to condense in the reserve tank).
Glass
Platinum
Ceramics
3 or 5 meter length should be selected.
Atmospheric pressure
3 to 11 L/min (when a flow-through type holder is used)
90% response within 10 seconds to measurement or buffer solution at 20 °C
< 1. SPECIFICATIONS >
) and sodium chloride (NaCl). It
2
Pt1000
IM 12B7J3-01E
7th Edition : Nov.20,2018-00
1-1
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