Phonetics SENSAPHONE EXPRESS II, User Manual

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12 Sensaphone ® Express II User's Manual
4-20mA sensor
RED WIRE
BLACK WIRE
+
_
12V
+OUT-
24V
+OUT-
+MIC- BAT
+IN- RELAY
NO COM NC
OFF ON
POWER
SENSAPHONE R
E
XPRESS
II
MONITORING SYSTEM
ABC
2
DIAL OUT
DEF
3
DIAL IN
MNO
6
SOUND
JKL
5
INPUTS
GHI
4
MESSAGES
PRS
7
POWER
TUV
8
OUTPUTS
WXY
9
DATA LOG
ENTER
CODE
HALT
ALARM
CANCEL
OPER
0
SYSTEM
INQUIRE
STATUS
ALARMS
LOCK
UNLOCK
DISPLAY
1
PHONE
PROGRAM
Input terminal
C
10
C
11
C
9 INPUT
COMMON
INPUT
INPUT
COMMON
COMMON
(+)
Figure 6: 4-20mA transducer using internal power supply
To use an
external power supply, wire the positive lead from the sensor to the positive terminal
on the external power source. Wire the negative lead from the sensor to a numbered input
screw on Express II. Next, connect the power supply to Express II by wiring the negative
terminal on the power supply to the corresponding common screw on Express. See Figure 7.