Owner's manual

IM 12B6J1-41E-E

2. GENERAL SPECIFICATIONS

2.1 Measuring elements : pH glass electrode

: Silver Chloride reference

: Solid Titanium electrode

: Pt1000 temperature sensor

2.2 Wetted parts

Sensor body : Glass, PPS

Measuring sensor : G-glass or L-glass

Reference junction : Porous PTFE

Earth pin : Solid Titanium

O-ring : FKM (Viton)

2.3 Functional specifications (at 25°C)

Measuring system

Isothermal point : pH 7

Reference system : Ag/AgCl with saturated KCl

Glass impedance - G-glass : 400 MΩ nominal

- L-glass : 775 MΩ nominal

Liquid outlet : Non-flow junction

Junction resistance : < 10 kΩ

Temperature element : Pt1000 to IEC 751

Asymmetry potential(zero) : 8 ± 15 mV

Slope : > 96 % (of theoretical value)

Note: The SC25F temperature sensor is designed for cell compensation and for indication.

It is NOT designed for process temperature control.

2.4 Dynamic specifications

Startup time sensor : < 60 sec.

Response time pH : t

< 15 sec. (for 7 to 4 pH step at 25 ºC)

Response time temperature : t

< 1.5 min. (for 10 °C step)

Stabilization time pH : < 2 min. (for 0.02 pH unit during 10 sec.)

2.5 Operating range

pH* : 0 to 14

Temperature** - G-glass : -10 °C to 80 °C (14 °F to 176 °F)

- L-glass : +15 °C to 125 °C (59 °F to 257 °F)

Pressure (static) *** :

Conductivity : > 10 µS/cm

Note* : The pH operating range is 0-14 pH, but using the sensor at temperature- and / or

pH-extremes will seriously shorten the lifetime.

Note** : The operating temperature for sensor in combination with PR10 retractable fitting

is limited to 80 ºC

Note*** : Process pressure fluctuations will shorten the lifetime of the sensor

p(bar)

Temp. (ºC)-10 25 130

50 1000