Honeywell SC Series - 3-Wire Current Amplifier; Figure 12-4: 3-Wire Current Amp Connection to High-Level Input Channel

52 Honeywell Sensing and Control
Signal Conditioning, Self Calibrating Digital Indicators
Rev. G, 008-0608-00
12.2.5 3-wire Current” Ampliers
Use the following wiring diagram when connecting an amplified
transducer or in-line amplifier with a 3-wire current amplifier to a
High-Level Input channel. Examples of such devices include
• transducerswiththeOption2jinternalamplier(withshunt
cal)
• ModelU3WUniversalIn-Lineampliers(withshuntcal)
The High-Level Input channel’s Configuration Jumpers must be
set as follows for proper operation. See “Excitation and Signal
Jumpers” on page 56.
• (+)Excitationsupply:“+28Vdc”
• (-)Excitationsupply:“GND”
• Signaltype:“current”
• Signalreference:“singleended”
1
2
3
4
5
6
7
8
9
10
11
12
(+)EXCITATION
SHUNT CAL 1
SHUNT CAL 2
(-)EXCITATION
(+)SIGNAL
(-)SIGNAL
(+)ANALOG OUTPUT
(-)ANALOG OUTPUT
N/C
DGND
AUX1
AUX2
DESIGNATION
PIN
CABLE SHIELD CONNECTION SCREW
(+)SUPPLY
SHUNT CAL 1
(+)OUTPUT
(-)OUTPUT
IN-LINE AMPLIFIER
CABLE INSTRUMENT CONNECTIONS
(CONNECT TO CABLE SHIELD)
OR
AMPLIFIED TRANSDUCER
SUPPLY RETURN
SHUNT CAL 2
NOTE: SHUNT CALIBRATION
NOT AVAILABLE ON ALL
DEVICES.
SEPARATE POWER
CURRENT OUTPUT,
DEVICE WITH
NOTE KEYED CONNECTOR
+28V
0V
WIRES
NOTE: INTERNAL
CONNECTION
Figure 12-4: “3-wire Current Amp” Connection to High-Level Input Channel