Specifications

Table Of Contents
Transmitter M400 29
© 02 / 2010 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter M400
Printed in Switzerland 52 121 378
4.5.2 VP cable assignment for pH/ORP sensor
Glass electrode
Ref. electrode
Solution
ground
T3
T1
T2
Outer shield
A transparent
B red
D blue
C gray
E white
F green
S green/yellow
C = 220 nF
T1 / T2: Temperature probe for 2-wire connection
T3: Additional connection for temperature probe (3-wire connection)