Sigma 980 Operating And Maintenance Manual page 52

Section 2
Pin
1
2
Pin
1
2
3
Figure 23 Ultrasonic Transducer Connections
No Connection
POWER
OFF
1. Protective Cover for TB5 and TB6
Page 50
Wiring the Downlook Ultrasonic Sensor
6. To ensure protection against electrical shock reinstall the protective cover
over the Ultrasonic + and - terminal connections.
Table 13 Ultrasonic Terminal Block Connections (TB5)
Signal Description
Ult + (pos)
Ult - (neg)
Table 14 Ultrasonic Terminal Block Connections (TB6)
Signal Description
RTD + (pos)
RTD - (neg)
ON ON
F1 F1
T, 1.0A 250V T, 1.0A 250V
HOT/ 1 HOT/ 1 HOT/ 1 HOT/ 1
J12 J12
NEU/ 2 NEU/ 2 NEU/ 2 NEU/ 2
Wire Type
Coax Inner Conductor
Coax Outer Conductor
shield
TB3 TB3 pH pH
MODEM MODEM RAIN RAIN TB4 TB4 TB 9 ANALOG TB 9 ANALOG
TB2 TB2
1 1
1 1
RING RING
SHIELD SHIELD
RAIN+ RAIN+
NO NO
TIP TIP
REF REF RAIN– RAIN–
COM RELAY 4 COM RELAY 4 1 1 1
pH pH RING RING RING SHIELD SHIELD
NC NC
TIP TIP TIP
RTD RTD CH 1 CH 1
TB5 TB5 TB5
NO NO
ULTRASONIC ULTRASONIC ULTRASONIC
–5V –5V COMMON COMMON
F2 F2
COM RELAY 3 COM RELAY 3
COMMON COMMON SHIELD SHIELD
TB6 TB6 TB6
1 1 1
NC NC
+5V +5V CH 2 CH 2
RTD RTD RTD
NO NO
RTD RTD RTD RTD – RTD – RTD – COMMON COMMON
485A 485A
COM RELAY 2 COM RELAY 2
SHIELD SHIELD SHIELD
SHIELD SHIELD
485B 485B
NC NC
1 1
NO NO 485+ 485+ CH 3 CH 3
TOTAL + TOTAL +
COM RELAY 1 COM RELAY 1 485GND 485GND COMMON COMMON
TOTAL – TOTAL –
NC NC SHIELD SHIELD SHIELD SHIELD
SHIELD SHIELD
RS485 RS485 ANALOG ANALOG ANALOG ANALOG
J13 J13 J13 J13 TB7 TB7 TOTALIZER TOTALIZER
TB8 TB8 TB8 TB8
2
2. Cable to Ultrasonic Sensor
Wire Color
yellow
orange
Wire Color
red
black
clear
TB11 TB11 AV AV
SHEILD SHEILD
1
TB10 TB10 4-20 mA 4-20 mA RCV– RCV–
CH 4 CH 4 CH A+ CH A+
RCV+ RCV+
COMMON COMMON CH A– CH A–
XMIT– XMIT–
SHIELD SHIELD SHIELD SHIELD
XMIT+ XMIT+
CH 5 CH 5 CH B+ CH B+ COMMON COMMON
COMMON COMMON CH B– CH B– +12V +12V
SHIELD SHIELD SHIELD SHIELD DEPTH– DEPTH–
CH 6 CH 6 START START DEPTH+ DEPTH+
COMMON COMMON PULSE PULSE SHIELD SHIELD
SHIELD SHIELD BOTTLE BOTTLE COMMON COMMON
DSR DSR
CH 7 CH 7 EVENT EVENT
COMMON COMMON COMMON COMMON RXD RXD
SHIELD SHIELD SHIELD SHIELD DTR DTR
SAMPLER SAMPLER
TXD TXD
+12V +12V
RS232C RS232C