Spirax Sarco UTM20 Series - Page 38

IM-P505-02-US Issue 1
38
UTM20 Series Ultrasonic Transit-time Flowmeters
Fig. 43 Three-wire RTD interface
Fig. 44 Four-wire RTD interface
RTD1 Ex +
RTD1 Sense +
RTD1 Sense -
RTD1 Ex -
RTD2 Ex +
RTD2 Sense +
RTD2 Sense -
RTD2 Ex -
1
2
3
4
5
6
7
8
9
External Equipment
Temp #1
PT100 or PT1000 RTDs
Temp #2
(Acceptable wire sizes: 28 to 12 AWG)
Chassis_GND
Black
Red/Blue
Red
Red/Blue
Red
White
White
(Note: Wire colors apply to Badger Meter PN 68996.)
TB900
RTD1 Ex +
RTD1 Sense +
RTD1 Sense -
RTD1 Ex -
RTD2 Ex +
RTD2 Sense +
RTD2 Sense -
RTD2 Ex -
1
2
3
4
5
6
7
8
9
External Equipment
Temp #1
PT100 or PT1000 RTDs
Temp #2
(Acceptable wire sizes: 28 to 12 AWG)
Chassis_GND
(Note: Wire colors apply to Badger Meter PN 68996.)
TB900