
Transmitter M400/2(X)H, M400G/2XH 96
© 03 / 2014 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter M400/2(X)H, M400G/2XH
Printed in Switzerland 30 031 683
Available Buffer Sets:
Standard buffers
MT-9 buffers, MT-10 buffers, NIST Technical Buffers,
NIST Standard Buffers (DIN 19266:2000–01), JIS Z 8802 buffers, Hach buffers, CIBA (94)
buffers, Merck Titrisols-Reidel Fixanals, WTW buffers
Dual membrane electrodes pH buffers (pH/pNa)
Mettler-pH/pNa buffers (Na+ 3.9M)
Oxygen amperometric
Measurement
parameters
– Dissolved oxygen: Saturation or concentration and temperature
– Oxygen in gas: Concentration and temperature
Current range 0 to7000nA for analog sensors
Oxygen measuring
ranges
– Dissolved oxygen: Saturation 0 to 500 % air,
0 to 200 % O2
Concentration: 0ppb (µg/L)
to 50.00 ppm (mg/L)
– In gas: 0 to 9999 ppm O2 gas,
0 to 100 vol % O2
Oxygen accuracy*
– Dissolved oxygen Saturation: ± 0.5% of the measured value
or ± 0.5%, depending on which is larger.
Concentration at high values: ± 0.5% of the
measured value or ± 0.050 ppm / ± 0.050
mg/L, depending on which is larger.
Concentration at low values: ± 0.5% of the
measured value or ± 0.001 ppm / ± 0.001
mg/L, depending on which is larger.
Concentration at traces values: ± 0.5% of
the measured value or ± 0.100 ppb / ± 0.1
µg/L, depending on which is larger.
– In gas ± 0.5 % of the measured value or ± 5 ppb,
depending on which is larger for ppm O2
gas.
± 0.5% of the measured value or ± 0.01%,
depending on which is larger for vol % O2.
Resolution current 6 pA
Polarization voltage
– 1000 to 0 mV for analog sensors
– 550 mV or – 674 for ISM sensors (congurable)
Temperature input NTC 22 kΩ, Pt1000
Temperature
compensation
Automatic
Temperature measuring
range
–10 to 80 °C
Temperature accuracy* ± 0.25 K in the range of – 10 to + 80 °C (14 to + 176°F)
Max. length sensor
cable
Analog: 20 m (65 ft); ISM 80 m (260ft)
Calibration
1-point (slope or offset) calibration, process calibration (slope or
offset) calibration
* For analog input signal (ISM input signal causes no additional error)
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