E-bus digital room sensor, Troubleshooting, Operator interface 8 – Orion System E-BUS Digital Room v.1 User Manual
Page 8: Figure 10: temperature/resistance testing, Measuring digital sensor resistance, E-bus cable from sensor disconnected, 2 uf
E-BUS DIGITAL ROOM SENSOR
Operator Interface
8
Troubleshooting
Figure 10: Temperature/Resistance Testing
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T
9302
NOTE:
,
Table 1
For This Test The Sensor Must Be Disconnected From Its E-BUS Cable
As Shown. The Meter Must Be Set To Measure Resistance In Ohms. Use
To Determine If The Sensor Is Reading The Correct Resistance Value For The
Ambient Temperature. This Resistance Value Should Match The Temperature
Value Listed Next To The Resistance Value In The Table. The Temperature Should
Be Measured With A Separate Accurate Temperature Measuring Device Located
In The Area Where The Sensor Is Currently Located.
Measuring Digital Sensor Resistance
E-BUS Cable
From Sensor
Disconnected
MADE IN USA
YS102370 R1
ModBus LCD Space Sensor
W
a
ttMaster Controls, Inc
PROGRAM
COMM
LED1
EXTERN
THERM
+12Vdc
GND
-COM
+COMM
SHLD
P1
R1
F3
U4
C18
R36
C30
D1
L1
C17
R38
R37
C19
C31
C21
TB1
X2
J3
C3
C24
C23
C1
C8
C12
C13
C14
C16
C25
C26
J2
Q2
R3
R4
R6
R8
R9
R10
R1
1
R12
R14
R13
R15
TH1
U3
X1
C27
R18
C20
D4
R17
D6
D7
R32
R33
D5
1
J1
DISP1
C15
D2
R2
R5
R7
R16
R19
R20
U6
U2
TB2
R35
2.2
uF
R18
1002
1001
1330
4751
4751
1001
1001
.1uF
9.2
1M
hz
4751
4751
LTC
35
02
.1uF
15pF
6.8uF
.1uF
10uF
3162
1502
6.8uH
1002
24F
C1025
6.8uF
6.8uF
1001
4751
.1uF
.1u
F
1000
1002
4751
.1uF
4751
A
D
M3
483
.1uF
.1uF
RS1G
X05
MICRO
CH
IP
PIC3
2M
X44
0F
512H-80
IP
T
.1u
F
10RO
10RO
470pF
X05
E-BUS Digital Room Sensor
Back View
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