Metrohm 913 User Manual

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8 Technical specifications
912/913/914 Meter
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89
8 Technical specifications
8.1 Measuring inputs
The four available instruments are each equipped with specific measuring
inputs.
The following table lists the measuring inputs for each instrument and the
corresponding measuring modes.
Table 19
Measuring inputs / instrument
Instrument Measuring inputs / measuring modes
Electrode,
analog
Electrode,
digital
Conductivity Temperature Reference
2.912.010 Κ/TDS/Sal
1)
/ρ/T
2.913.010 pH/U/T pH/U/T pH/U/T x
2.913.020 pH/U/T pH/U/T/DO pH/U/T x
2.914.020 pH/U/T Κ/TDS/Sal
1)
/ρ/T T x
2.914.030 pH/U/T/DO Κ/TDS/Sal
1)
/ρ/T
1)
The salinity (Sal) calculation is based on the specifications in the
"Unesco technical papers in marine science 36" under the title
"Tenth report of the joint panel on oceanographic tables and standards".
Input resistance
> 1 * 10
12
Ohm (under reference conditions)
Table 20 Specification of the measuring inputs
Measuring range Resolution Measuring accuracy
2)
pH value –13.000 - +20.000 0.001 pH ±0.003 pH
Temperature:
Pt1000
with iConnect
NTC 30 kΩ
–150 °C - +250 °C
–150 °C - +250 °C
–5 °C - +250 °C
0.1 °C
0.1 °C
0.1 °C
±0.2 °C (–20 °C - +150 °C)
±0.4 °C (–20 °C - +150 °C)
±0.6 °C (+10 °C - +40 °C)
Potential –1200.0 mV - +1200.0 mV 0.1 mV ±0.2 mV
Conductance
3)
0.1 µS - 500 mS 4 significant digits ±0.5% at 0.1 µS - 16 µS
±0.5% at 16 µS - 1 mS
±1.0% at 1 mS - 500 mS

Metrohm 913 Specifications

General

Brand	Metrohm
Model	913
Category	Measuring Instruments
Language	English