
Transmitter M400 119
© 02 / 2010 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter M400
Printed in Switzerland 52 121 378
Available Buffer Sets:
MT-9 buffers, MT-10 buffers, NIST Technical Buffers,
NIST Standard Buffers (DIN 19266:2000–01), JIS Standard, Hach buffers, CIBA (94) buffers,
Merck Titrisols-Reidel Fixanals, WTW buffers
Oxygen Specifications
Measuring range current 0 to 900 nA
Sensor maximum distance
Analogue: 20 m (65 ft)
ISM: 80 m (260 ft)
Concentration range 0.1 ppb (µg/l) to 50.00ppm (mg/l)
DO accuracy**
Saturation: 0.5% of reading or 0.5%
(whichever is greater)
Concentration:
Oxygen high: 0.5% of reading or 0.050ppm
resp. 0.050mg/l (whichever is greater)
Oxygen low: 0.5% of reading or 0.001ppm
resp. 0.001mg/l (whichever is greater)
O2 gas accuracy**
0.5% of reading or 5ppb O2 gas (whichever is
greater) for ppm resp. ppb O2 gas
0.5% of reading or 0.01% (whichever is greater) for
Vol% O2 gas
Resolution auto / 0.001 / 0.01 / 0.1 / 1, (can be selected)
Temperature input* Pt1000 / NTC22K
Temperature measuring range – 30 to 150 °C (– 22 to 302 °F)
Temperature resolution auto / 0.001 / 0.01 / 0.1 / 1 K (°F), (can be selected)
Temperature accuracy** ± 0.25 K within –10 to + 80 °C
Temperature repeatability** ± 0.13 K (± 0.23 °F)
* Not requried on ISM sensors
** For analog input signal (ISM input signal causes no additional error).
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