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2. GENERAL SPECIFICATIONS
2.1 Measuring elements: pH glass electrode
2.2 Wetted parts
Sensor body
Earthing pin
Measuring sensor
LE glass tube
O-ring
Reference junction
2.3 Functional specifications (at 25°C)
Isothermal point
Reference system
Glass impedance
- Dome shape
- Flat Surface
Junction resistance
Liquid outlet
Temperature element
Asymmetry potential
Linearity PH (Slope)
NOTE: The temperature sensor included in the FU20 is designed for cell compensation
and for indication. It is NOT designed for process temperature control.
2.4 Dynamic specifications
Response time pH
Response time temperature
- Dome shape
- Flat surface
Stabilization time pH
2.5 Operating range
pH
ORP
Temperature
- Dome shape
- Flat Surface
Pressure
p(bar)
10
NPT / FTD
5
FSM
0
-10
0
25
Conductivity
NOTE: The pH operating range at room temperature is 0-14 pH, but at high temperatures
or range outside 2-12 pH the lifetime will be seriously shortened.
IM 12B06J03-02E-E
: Silver chloride reference
: Solid platinum electrode
: Pt1000 temperature sensor.
: NPT, FSM: PPS GF40: FTD : PVDF- (GF25+TZ24)
: Solid Platinum
: G-glass
: AR-glass
: Viton
: Porous PTFE
: pH 7 / 3.3 M KCL
: Ag/AgCl with saturated KCI
: 200 MΩ nominal
: 700 MΩ nominal
: 1.0 to 10 kΩ
: non-flow double junction
: Pt1000/Pt100 to IEC 751
: 8 ± 15 mV
: > 96 % (of theoretical value)
: t 90 < 15 sec. (for 7 to 4 pH step)
: t 90 < 1 min. (for 10 °C step)
: t 90 < 4 min. (for 10 °C step)
: < 2 min. (for 0.02 pH unit during 10 sec.)
: 0 to 14
: -1500 to 1500 mV
: -10 to 105 ºC (14 to 221 ºF)
: 15 to 105 ºC (59 to 221 ºF)
:
50
105
Temp. (ºC)
: > 10 µS/cm
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