All of the following signals are energy-limited for the TB8-xx-xx-xx-03 transmitter
only. For the TB8-xx-xx-xx-04 Transmitter they are not energy-limited.
Note: These signals are not present on every model. Some models may have one-
piece screw terminal blocks and others may have two-piece pluggable terminal
blocks with either screw or spring clip terminals. These terminals will accept 0.325
to 1.31 mm
larger cross section is recommended.
I/O NAME
Sensor 1 - HI
Sensor 1 - LO
Sensor 1 - SHD
Sensor 2 - HI
Sensor 2 - LO
Sensor 2 - SHD
1 – WHT
1 – BLK
2 – WHT
2 – BLK
3 – WHT
3 – BLK
4 – WHT
4 – BLK
5 – WHT
5 – BLK
6 – WHT
6 – BLK
7 – WHT
7 – BLK
8 – WHT
8 – BLK
9 – WHT
9 – BLK
10 – WHT
10 – BLK
11 – WHT
11 – BLK
12 – WHT
12 – BLK
SHD
SHD
SHD
SHD
20909-01C Rev 06
2
(22-16 AWG) conductor sizes. Conductor size 0.52 mm
OUTPUT IS LIMITED TO
+12V, 48mA
-12V, 48mA
Ground
+12V, 48mA
-12V, 48mA
Ground
+/-8.5V, 43mA from Sensor Head
+/-8.5V, 22mA from Sensor Head
+/-8.5V, 43mA from Sensor Head
+/-8.5V, 22mA from Sensor Head
+/-8.5V, 43mA from Sensor Head
+/-8.5V, 22mA from Sensor Head
+/-8.5V, 43mA from Sensor Head
+/-8.5V, 22mA from Sensor Head
+/-8.5V, 43mA from Sensor Head
+/-8.5V, 22mA from Sensor Head
+/-8.5V, 43mA from Sensor Head
+/-8.5V, 22mA from Sensor Head
+/-8.5V, 43mA from Sensor Head
+/-8.5V, 22mA from Sensor Head
+/-8.5V, 43mA from Sensor Head
+/-8.5V, 22mA from Sensor Head
Ground
Ground
RS-485 bus levels
RS-485 bus levels
-12V nom (-14.25V max), 180mA
Ground
+12V nom (+14.25V max), 180mA
Ground
Ground
Ground
Ground
Ground
Table 5
Sensor Connections
2
(20AWG) or
LIMIT INPUT TO
Passive 4-20mA transducer
Passive 4-20mA transducer
Ground shields at one end only
Passive 4-20mA transducer
Passive 4-20mA transducer
Ground shields at one end only
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Connect only to sensor head cable
Use for drain wire of sensor head
cable
Use for orange communication
wire, if present.
Provisional
Provisional
Page 6-4