Owner's manual

20909-01C Rev 04 Page 6-4

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

(22-16 AWG) conductor sizes. Conductor size 0.52 mm

(20AWG) or

larger cross section is recommended.

I/O NAME OUTPUT IS LIMITED TO LIMIT INPUT TO

Sensor 1 - HI +12V, 48mA Passive 4-20mA transducer

Sensor 1 - LO -12V, 48mA Passive 4-20mA transducer

Sensor 1 - SHD Ground Ground shields at one end only

Sensor 2 - HI +12V, 48mA Passive 4-20mA transducer

Sensor 2 - LO -12V, 48mA Passive 4-20mA transducer

Sensor 2 - SHD Ground Ground shields at one end only

1 – WHT +/-8.5V, 43mA from Sensor Head Connect only to sensor head cable

1 – BLK +/-8.5V, 22mA from Sensor Head Connect only to sensor head cable

2 – WHT +/-8.5V, 43mA from Sensor Head Connect only to sensor head cable

2 – BLK +/-8.5V, 22mA from Sensor Head Connect only to sensor head cable

3 – WHT +/-8.5V, 43mA from Sensor Head Connect only to sensor head cable

3 – BLK +/-8.5V, 22mA from Sensor Head Connect only to sensor head cable

4 – WHT +/-8.5V, 43mA from Sensor Head Connect only to sensor head cable

4 – BLK +/-8.5V, 22mA from Sensor Head Connect only to sensor head cable

5 – WHT +/-8.5V, 43mA from Sensor Head Connect only to sensor head cable

5 – BLK +/-8.5V, 22mA from Sensor Head Connect only to sensor head cable

6 – WHT +/-8.5V, 43mA from Sensor Head Connect only to sensor head cable

6 – BLK +/-8.5V, 22mA from Sensor Head Connect only to sensor head cable

7 – WHT +/-8.5V, 43mA from Sensor Head Connect only to sensor head cable

7 – BLK +/-8.5V, 22mA from Sensor Head Connect only to sensor head cable

8 – WHT +/-8.5V, 43mA from Sensor Head Connect only to sensor head cable

8 – BLK +/-8.5V, 22mA from Sensor Head Connect only to sensor head cable

9 – WHT Ground Connect only to sensor head cable

9 – BLK Ground Connect only to sensor head cable

10 – WHT RS-485 bus levels Connect only to sensor head cable

10 – BLK RS-485 bus levels Connect only to sensor head cable

11 – WHT -12V nom (-14.25V max), 180mA Connect only to sensor head cable

11 – BLK Ground Connect only to sensor head cable

12 – WHT +12V nom (+14.25V max), 180mA Connect only to sensor head cable

12 – BLK Ground Connect only to sensor head cable

SHD Ground Use for drain wire of sensor head

cable

SHD Ground Use for orange communication

wire, if present.

SHD Ground Provisional

Table 5 Sensor Connections