1
HT/ST Space Humidity and Temperature Sensor Installation Instructions TG200921 Issue 1/B 30/08/06
1 - 1
Installation Instructions - Sheet 1
HT/ST
Space Humidity and Temperature Sensor
Important: Retain these instructions
1.2 Installation
1.1 Unpacking
2
1
HT/ST Installation
Instructions TG200921
Dimensions
1
86 mm (3.39”)
26 mm (1.02”)
86 mm (3.39”)
Requirements
2
b
a
c
> 50 cm (20”)
e
d
f
g
1.5 m
(5 ft)
Contents
1.1 Unpacking ........................................ 1 - 1
1.2 Installation........................................ 1 - 1
2.1 Maintenance ..................................... 2 - 1
2-2 Disposal ........................................... 2 - 3
Sheet 1
Sheet 2
HT/ST Installation Instructions - Sheet 1
HT/ST Space Humidity and Temperature Sensor Installation Instructions TG200921 Issue 1/B 30/08/06
1 - 4
I Q
1.2 Installation (continued)
Set up IQ Sensor types
12
tYpe Sensor digI/P Driver Function loGic Loop scHedule seQnc Analog
digBit Knob sWitch Time Zone Oss User addRess intcoN calarM reView Plot
calEndar
= ?
Temperature (0 to +40 °C)
Thermistor
Yn<CR>
TYPE n
:
=?
S=5 (characterise)
Y=, E=, U=, L=, P=,
I1 to I6=, O1 to O6=
X <CR>
It is recommended to use SET (software tool) for the setting of sensor type modules. For all IQ2
series controllers with firmware version 2.1 or greater, or IQ3 series controllers, the following SET
Unique Sensor References should be used:
Humidity: Humidity I
Temperature: Thermistor HTST DT (°C)
Thermistor HTST DT F (°F)
(change the values of U and L to +50 and -5 °C or +122 and +23 °F
respectively)
If not using SET, use the following tables for all IQ2 series controllers of firmware version 2.1 or greater
or IQ3 controllers; for all other IQ controllers see Sensor Scaling Reference Card TB100521A.
Humidity (0 to 100 %RH)
Current
Yx<CR>
TYPE x
:
=?
S=5 (characterise )
Y=, E=, U=, L=, P=
I1 to I2=, O1 to O2=
X <CR>
I Q
Δ T
Test system
13
Temperature
Humidity
Δ H
Y epyttupnI)Amrruc(2
E tnenopxE3
U reppU001
L rewoL0
P stnioP2
xxIxO
1 40
2 02001
stinU
C°F°
Y
epyttupnI
)stlovrotsimreht(1
E
tnenopxE
3
U
reppU
05221
L
rewoL
5-32
P
stnioP
6
xxI)C°(xO)F°(xO
1
146.205221
2
74.304401
3
64.40368
4
366.60105
5
866.7023
6
201.85-32
Assemble unit
10
backplate
‘click’
Configure IQ
11
IQ Configuration
Manual 90-1533
IQ
IQ
or
Maintenance
14
HT/ST Installation Instructions - sheet 2
2
HT/ST Installation Instructions - Sheet 1
HT/ST Space Humidity and Temperature Sensor Installation Instructions TG200921 Issue 1/B 30/08/06
1 - 2
LP2-PWR
TH
I2-N/TH
I1-N
JPR4
I1-P
EARTH
1.2 Installation (continued)
Requirements (continued)
2
i
j
H O
2
-20 °C
(-4 °F)
+60 °C
(140 °F)
0 %RH
100 %RH
non -condensing
h
0 °C
(32 °F)
+40 °C measurement
(104 °F)
lk
Mount backplate
4
wall
back box
(BESA)
35 mm (1.38”)
wall box
Remove backplate
3
a
b
60 mm (2.36”)
35 mm (1.38”)
35 mm (1.38”)
35 mm (1.38”)
FR
ABS
JPR4
Check link
5
JPR4
Caution: This unit contains static
sensitive devices. Suitable ant-
static precautions should be taken
throughout the operation to prevent
damage to the units.
BS EN100015/1 Basic Specifications: protection
of electrostatic sensitive devices.
HT/ST Space Humidity and Temperature Sensor Installation Instructions TG200921 Issue 1/B 30/08/06
1 - 3
Installation Instructions - Sheet 1 HT/ST
1.2 Installation (continued)
Remove cutout(s)
6
Route cables
7
as required
Wire to Controller
9
LP2-PWR
TH
I2-N/TH
I1-N
IN
C
IN
C (+24V)
JPR4
I1-P
EARTH
0 (0V)
N+1 (in)
+ (+24V)
0 (0V)
N (in)
+ (+24V)
N+1
N
LP2-PWR
TH
I2-N/TH
I1-N
JPR4
I1-P
EARTH
Sensor
IQ1 & IQ2
} temperature
} humidity
linked for
thermistor (T)
linked for
current (I)
2 analog input
channels
Sensor
IQ3
temperature
humidity
linked for
thermistor (T)
linked for
current (I)
earth (ground) screens and board earth at sensor end
earth (ground) screens and board earth at sensor end
Note that for CE compliance: Ensure that the sensor end cable
screens and board earth ground wire are connected to the
nearest (<1.5 m) earth ground. Ensure that the controller end
cable screens are connected to the controller earth ground.
Connect board earth
8
LP2-PWR
TH
I2-N/TH
I1-N
JPR4
I1-P
EARTH
terminate screens at IQ end
terminate screens at IQ end
a
b
crimp cable
‘fast on’ socket supplied
2
HT/ST Space Humidity and Temperature Sensor Installation Instructions TG200921 Issue 1/B 30/08/06
2 - 1
Installation Instructions - Sheet 2
HT/ST
Space Humidity and Temperature Sensor
Switch off supply
1
2.1 Maintenance
Over time, the sensing element may get covered in dust. The dust can be removed using compressed
air. Under no circumstances should water or cleansing agents be used on the sensing elements.
It is recommended that the accuracy of the sensor is verified every 12 months. If the sensor falls outside
the quoted accuracy, or the sensor tip is damaged, replace the tip as shown below.
Open housing
2
Unscrew board
3
Remove old sensor tip
4
a
b
Caution: This unit contains static sensitive
devices. Suitable ant-static
precautions should be taken
throughout the operation to
prevent damage to the units.
BS EN100015/1 Basic Specifications:
protection of electrostatic sensitive devices.
J P R 4
L P 2 - P W R
T H
I 2 - N / T H
I 1 - N
I 1 - P
E A R T H
O
I
J P R 4
L P 2 - P W R
T H
I 2 - N / T H
I 1 - N
I 1 - P
E A R T H
hold sides of sensor tip near base of sintered filter
JPR4
LP2-PWR
TH
I2-N/TH
I1-N
I1-P
EARTH
discard old tip, see 2.2
HT/ST Installation Instructions - Sheet 2
HT/ST Space Humidity and Temperature Sensor Installation Instructions TG200921 Issue 1/B 30/08/06
2 - 4
Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Ecublens, Route
du Bois 37,Switzerland by its Authorized Representative, Trend Control Systems Limited.
Trend Control Systems Limited reserves the right to revise this publication from time to time and make changes to the content hereof
without obligation to notify any person of such revisions or changes.
Trend Control Systems Limited
P.O. Box 34, Horsham, West Sussex, RH12 2YF, UK. Tel:+44 (0)1403 21888 Fax:+44 (0)1403 241608 www.trend-controls.com
Trend Control Systems USA
6670 185th Avenue NE, Redmond, Washington 98052, USA. Tel: (425)897-3900, Fax: (425)869-8445 www.trend-controls.com
HT/ST Installation Instructions - Sheet 2
HT/ST Space Humidity and Temperature Sensor Installation Instructions TG200921 Issue 1/B 30/08/06
2 - 2
Screw board in place
6
2.1 Maintenance (continued)
Assemble unit
7
Install new sensor tip
5
J P R 4
L P 2 - P W R
T H
I 2 - N / T H
I 1 - N
I 1 - P
E A R T H
hold sides of sensor
tip near base of
sintered filter
ACC/HT/SENSOR TIP for HT/ST
J P R 4
L P 2 - P W R
T H
I 2 - N / T H
I 1 - N
I 1 - P
E A R T H
J P R 4
L P 2 - P W R
T H
I 2 - N / T H
I 1 - N
I 1 - P
E A R T H
backplate
‘click’
Switch on supply
8
O
I
I Q
I Q
Δ T
Test system
9
Temperature
Humidity
Δ H
HT/ST Space Humidity and Temperature Sensor Installation Instructions TG200921 Issue 1/B 30/08/06
2 - 3
Installation Instructions - Sheet 2 HT/ST
2.2 Disposal
WEEE Directive :
At the end of their useful life the packaging
and product should be disposed of by a
suitable recycling centre.
Do not dispose of with normal household waste.
Do not burn.
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