TREND HT-O User Manual
Outside Humidity and Temperature Sensor
HO
2
Important: Retain these instructions
Installation Instructions
HT/O
CONTENTS
1 Unpacking.......................................................................... 1
2 Installation .......................................................................... 1
1 Unpacking
2 Installation
1
Dimensions
3 Fault Finding ...................................................................... 4
4 Maintenance ...................................................................... 5
5 Disposal ............................................................................. 8
HT/O Installation
Instructions TG200992
2
Requirements
a
196 mm, 7.72”
0.87”
Ø 5 mm
0.2”
112 mm, 4.4”
22 mm
d
+60 °C (+140 °F)
+50 °C (+122 °F)
b
e
0 %RH 100 %RH
Protection: IP65
f
10 mm, 0.39”
69.5 mm, 2.74”
c
g
ambient limit
-40 °C (-40 °F)
measurement
-30 °C (-22 °F)
HT/O Installation Instructions TG200992 Issue 1/A 30/01/08
1
HT/O Installation Instructions
2 Installation (continued)
2
h
3
Requirements (continued)
Remove Cover
a
ij k
b
B1 < L1
L1
> 1 m, 1 yd
L2
B2 < L2
Caution: This unit contains static sensitive devices. Suitable anti-static precautions
4
Fit Bracket, Shield and Sensor
a
44 mm (1.73”)
2 wallplugs and screws supplied
Ø 6 mm (0.24”)
should be taken throughtout the operation to prevent damage to the units.
BS EN100015/1 Basic Specification: protection of electrostatic sensitive
devices.
c
b
2
HT/O Installation Instructions TG200992 Issue 1/A 30/01/08
Installation Instructions HT/O
I Q
2 Installation (continued)
5
7
Insert Cable
through gland
M16 gland
Fit Cover
6
Wire to Controller
V+
RH
T
Tp
V+
RH
T
Tp
8
IQ1 & IQ2
C (+24V)
} humidity
IN
C
} temperature
IN
earth (ground) screens at IQ end
N
N+1
IQ3
humidity
temperature
0 (0V)
N (in)
+ (+24V)
0 (0V)
N+1 (in)
+ (+24V)
earth (ground) screens at IQ end
Configure IQ
2 analog input
channels
linked for
current (I)
linked for
thermistor
(T)
linked for
current (I)
linked for
thermistor
(T)
or
I Q
IQ Configuration Manual 90-1533
HT/O Installation Instructions TG200992 Issue 1/A 30/01/08
3
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