Temperature; Polarizer - Metrohm 867 pH Module Manual

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7.1.2

Temperature

Measuring range
Pt1000
NTC
Resolution
Pt1000
NTC
Measuring accu-
racy
Pt1000
NTC
7.1.3

Polarizer

Measuring mode
Ipol
Polarization cur-
rent
Measuring
range
Resolution
Measuring
accuracy
Measuring mode
Upol
Polarization
voltage
Measuring
range
867 pH Module
A measuring input (Temp.) for temperature sensors of the Pt1000 or NTC
type with automatic temperature compensation.
R (25 °C) and B value can be configured for NTC sensors.
–150 - +250 °C
–5 - +250 °C
(R (25 °C) = 30000 Ω and B (25/50) = 4100 K)
0.1 °C
0.1 °C
±0.2 °C
(Applies for measuring range –20 - +150 °C; ±1 digit; without sensor
error, under reference conditions)
±0.6 °C
(Applies for measuring range +10 - +40 °C; ±1 digit; without sensor
error, under reference conditions)
One measuring input (Pol.) for polarizable electrodes.
Determination with adjustable polarization current
–122.5 - +122.5 µA (increment: 0.5 µA)
–125.0 - +125.0 µA: non-guaranteed values, dependent on reference
voltage +2.5 mV
–1200 - +1200 mV
0.1 mV
±0.2 µA
(±1 digit; without sensor error, under reference conditions)
Determination with adjustable polarization voltage
–1,225 - +1,225 mV (increment: 25 mV)
–1,250 - +1,250 mV: non-guaranteed values, dependent on reference
voltage +2.5 mV
–120 - +120 µA
7 Technical specifications
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