961-20A0-010 Datasheet, PDF (12/36 Pages) Magnetrol International, Inc. – Ultrasonic Single and Dual Point Level Switches

Ground
Shield: 1, 3, 5, 7
Signal: 2, 4, 6, 8
037-3317-xxx Cabling
RECV2
XMIT2
RECV1
XMIT1
TB1
TB4
TB3
TB2
Model 962 Remote Transducer Wiring
Figure 13
Model 962 Loop-Powered Remote Transducer Wiring
Model 962 Loop-powered Remote Mount Wiring
Transducer
Gap
Upper
Upper
Upper
Upper
Lower
Lower
Lower
Lower
Cable
Marker
High
High
High
High
Low
Low
Low
Low
Wire
Marker
1
1
(none)
(none)
1
1
(none)
(none)
Transducer
Housing TB
Position
1
2
3
4
5
6
7
8
Wire
Transmit Shield
Transmit Signal
Receive Shield
Receive Signal
Transmit Shield
Transmit Signal
Receive Shield
Receive Signal
Electronics
Housing TB &
Terminal Position
TB2
XMT1
TB3
RCV1
TB4
XMT2
TB1
RCV2
NOTE: The Signal wires are 30 AWG RG Type 178/U coax with the white jacket stripped off. The Shield wires are
prepared with solid tinned copper 22 AWG bus wire.
2.5 Configuration
2.5.1 Model 961 Line-powered Configuration
Model 961 line-powered units have the following
configuration options:
• TIME DELAY potentiometer for 0.5 to 45 second
signal averaging
• LEVEL TEST push button for testing of the DPDT
process level alarm
• MALF TEST push button for testing of the SPDT
malfunction alarm
• Hi/Lo DIP switch for fail-safe high or low level selection
• I/J DIP switch for independent or joint operation of
the relays
12
51-646 Echotel^® Model 961 & 962 Ultrasonic Level Switches