Checkout, Calibration – Honeywell C7189U User Manual
Page 4
C7189U REMOTE INDOOR SENSOR
Automation and Control Solutions
Honeywell International Inc.
Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North
35 Dynamic Drive
Golden Valley, MN 55422
Scarborough, Ontario M1V 4Z9
http://yourhome.honeywell.com
® U.S. Registered Trademark
© 2005 Honeywell International Inc. Patents Pending.
69-1710EFS-1 M.S. Rev. 10-05
CHECKOUT
For best results, allow the sensor to absorb the air
moving through the room for a minimum of twenty
minutes before taking a resistance measurement.
1. Use an accurate thermometer (+/-1ºF[0.5ºC]) mea-
sure the temperature at the sensor location.
2. Remove one wire from one of the sensor's wiring
terminals. Use an ohmmeter to measure the resis-
tance across the sensor. Verify the sensor accu-
racy with the temperature/resistance in Table 1.
CALIBRATION
The sensor is calibrated at the factory and cannot be
recalibrated in the field.
Table 1. Sensor Resistance at Room Temperature.
Room Temperature
Ohms of
Resistance
°F
°C
40
4.4
22537
42
5.6
21516
44
6.7
20546
46
7.8
19626
48
8.9
18754
50
10.0
17926
52
11.1
17136
54
12.2
16387
56
13.3
15675
58
14.4
14999
60
15.6
14356
62
16.7
13743
64
17.8
13161
66
18.9
12607
68
20.0
12081
70
21.1
11578
72
22.2
11100
74
23.3
10644
76
24.4
10210
78
25.6
9795
80
26.7
9398
82
27.8
9020
84
28.9
8659
86
30.0
8315
88
31.1
7986
90
32.2
7672
92
33.3
7372
94
34.4
7086
96
35.6
6813
98
36.7
6551
100
37.8
6301