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Transmitter M400
138
Parameter
Sub parameter
Value
Unit
Cal constants
(analog sensors)
Cond / Res
M = 0.1,
A = 0.0
cm–1
Ω
Cond / Ind
M = 2.1750,
A = 0.0
cm–1
Ω
O2 high
S = –70.00
A = 0.0
nA
nA
O2 low
S = –350.00
A = 0.0
nA
nA
S = 100.0,
Z = 7.0
S = 1.0, Z = 0.0
S = 100.0
Z = 7.0
%
pH
pH incl. ISFET
pH – mV
CO2
Temperature
Analog Out
1
2
3
All analog out
Conductivity Resitivity
4
Mode
Type
Alarm
Hold mode
Value 4 mA
Value 20 mA
Dissolved Oxygen (M400, type 2)
Dissolved Oxygen (M400, type 3)
pH incl. ISFET
Dissolved carbon dioxide
Temperature
Set point 1
Conductivity Resistivity
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA
Measurement
Type
High Value
Low Value
O2
pH (incl. ISFET)
High Value
Low Value
High Value
Low Value
© 12 / 2013 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland
Printed in Switzerland
M = 1.0,
A = 0.0
Ch A – pH (M400 Type 1, 2, 3)
Ch A – Conductivity
(M400 Type 1 Cond Ind )
Ch A – Temperature
Ch B – pH (M400 Type 1, 2, 3)
Ch B – Conductivity
(M400 Type 1 Cond Ind)
Ch B – Temperature
4 – 20 mA
Normal
Off
Last value
0.1
10
10
20
0
100
0.000
100.0
2.000
12.00
0
100
0
100
a
Off
0
0
0
0
50
0
12
0
%
pH
Ω
S/cm
°C
S/cm
°C
µS/cm
MΩ-cm
µS/cm
MΩ-cm
%sat
%sat
ppb
ppb
pH
pH
hPa
hPa
°C
°C
S/cm
MΩ-cm
S/cm
MΩ-cm
% sat
% sat
pH
pH
Transmitter M400
52 121 378