11 technical specifications, 1 measuring inputs, 1 polarizer – Metrohm 870 KF Titrino plus Manual User Manual

Page 93: Polarizer

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11 Technical specifications

870 KF Titrino plus

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83

11 Technical specifications

11.1

Measuring inputs

The measuring cycle is 100 ms for all measuring modes.

11.1.1

Polarizer

A measuring input (Pol.) for polarizable electrodes.

Measuring mode
Ipol

Determination with adjustable polarization current.

Polarization
current

–120 - +120 µA (increment: 1 µA)
–125 - –121 µA / +121 - +125 µA: non-guaranteed values, dependent
on reference voltage +2.5 V

Measuring
range

–1,200 - +1,200 mV

Resolution

0.1 mV

Measuring
accuracy

±0.2 mV
(±1 digit, without sensor error, under reference conditions)

Measuring mode
Upol

Determination with adjustable polarization voltage.

Polarization
voltage

–1,200 - +1,200 mV (increment: 10 mV)
–1,250 - –1,210 mV / +1,210 - +1,250 mV: non-guaranteed values,
dependent on reference voltage +2.5 V

Measuring
range

–120 - +120 µA

Resolution

0.01 µA

Measuring
accuracy

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