Metrohm 890 Titrando - Manual (Page 43)

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8 Technical specifications
890 Titrando
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Measuring
accuracy ±0.2 mV
(±1 digit, without sensor error, under reference conditions)
Measuring mode
Upol Determination with adjustable polarization voltage
Polarization
voltage –1,225 - +1,225 mV (increment: 25 mV)
–1,250 - +1,250 mV: non-guaranteed values, dependent on reference
voltage +2.5 V
Measuring
range –120 - +120 µA
Resolution 0.1 µA
8.2 Internal dosing device
Cylinder volume of
the exchange unit 1 mL, 5 mL, 10 mL, 20 mL or 50 mL
Resolution 20,000 steps per cylinder volume
8.3 Power connection
Supply voltage 100 - 240 V
Frequency 50 - 60 Hz
Power consump-
tion Maximum 45 W
Fuse Electronic overload protection
8.4 Safety specifications
Design and testing ￭ EN/IEC 61010-1
￭ UL 61010-1
￭ CSA-C22.2 No. 61010-1
￭ Protection class I
Safety instructions The documentation contains safety instructions which have to be fol-
lowed by the user in order to ensure safe operation of the instrument.