Radiant Temperature Sensor TY7321 Specifications/Instructions

Radiant Temperature Sensor TY7321 Specifications/Instructions
AB-5361
Specifications/Instructions
Radiant Temperature Sensor
TY7321
General
The radiant temperature sensor measures infrared radiation at the perimeter on a wall. The infrared radiation is
one of the critical elements that determine what is perceived as heat. Including information on infrared temperature in the setpoint of air handling units makes it
possible to enhance the comfort of the occupants.
Features
Measurement principle
• The radiant temperature sensor provides non-contact
All objects radiate infrared rays in relation to their surface
temperatures. Detecting the energy volume of these
infrared rays allows the measurement of radiant temperatures.
•
•
•
•
•
•
•
and remote measurement of radiant temperature from
windows or walls.
Ideal for the measurement of thermal environments in
spaces where radiation has a major influence on
perceived temperature.
Can be installed in a variety of ceilings including facility
plates or sound-absorbing ceilings.
Thermopiles are used as sensing elements.
High responsivity and repeatability
For ceiling-mounted return-chamber air conditioning
installations, a sensor-mounted model can be used.
Changes in measuring area, installation and
maintenance can be carried out from inside the room.
By connecting to Azbil Corporation’s air conditioning
controllers or building automation systems, the sensor
provides more comfortable control which takes
account of the impact of radiation.
The TY7321’s thermopile sensing element converts infrared radiation to electricity and outputs a signal via an
internal signal processing circuit.
1
Specifications
Item
Sensing range
Sensing accuracy
Specification
Radiant temperature:
5 °C to 50 °C
Radiant temperature:
+/-2 °C (ambient temperature 25 °C)
Room temperature:
±0.35 °C (TY7321B), ±0.7 °C (TY7321C)
Power supply
24 V AC +/-15 %
Frequency
50/60 Hz +/-4 %
Power consumption
Max. 0.3 VA
Radiant temperature:
Output signal
Time constant
Rated conditions
Transport/storage conditions
Effective range
Sensor coverage
Weight
1 to 5 V DC (corresponds to radiant temperature 0 to 50 °C)
Room temperature:
Pt3KΩ (TY7321B), Pt100 (TY7321C)
Radiant temperature:
Max. 10 seconds
Room temperature:
Max. 3 minutes
Ambient temperature:
15 to 35 °C
Ambient humidity:
10 to 90 % RH (non-condensing)
Vibration:
2 m/s² (10 to 55 Hz)
Ambient temperature:
-20 to + 60 °C
Ambient humidity:
5 to 95 % RH (non-condensing)
Vibration:
9.8 m/s² (packed)
52 °
344 ° (horizontal)
65 ° (vertical, in 5 ° steps)
Approx. 200 g
Color
Base, housing, terminal cover:
DIC 546 1/2
Cover:
White
Case, housing, cover of sensor : White
Materials
Base, housing, terminal cover :
Molded polycarbonate resin, equivalent to UL V-O
Cover :
Molded fire-resistant ABS resin, equivalent to UL V-O
Case, housing, sensor cover :
Molded polycarbonate resin, equivalent to UL V-O
Safety Instructions
Please read instructions carefully and use the product properly.
any time.
Please keep this instruction on hand for reference at
Usage Restrictions
This product is targeted for general air conditioning. Do not use this product in a situation where human life may be
affected. If this product is used in clean rooms or places where reliability or control accuracy is particularly required,
please contact Azbil Corporation’s sales representatives. Azbil Corporation bears no responsibility for any benefit, or
lack of benefit, derived from the operation by the customer.
CAUTION
●
Installer must be a trained, experienced service technician.
●
Check the ratings given in this instructions to prevent equipment damage.
●
Check the environment given in this instructions to prevent equipment damage.
●
Disconnect power supply before wiring to prevent electrical shock or equipment damage.
●
All wiring must comply with local codes and ordinances.
●
Use crimp contacts with insulation jackets for wire terminals.
●
Do not remove or disassemble casing except for wiring.
●
Use an insulating transformer to supply 24V AC. Do not share power supply with other equipment. A
loop is formed at the common and may cause equipment damage.
2
May result in equipment damage.
AB-5361
Installation
Models
TY7321A1001
W/o room temperature sensor, box type
Installation Location
TY7321A1009
W/o room temperature sensor, Boxless
type
Make sure the installation is :
TY7321B1004
W/ room temperature sensor (Pt 3K), box
type
• Within the area to be sensed
TY7321B1012
W/ room temperature sensor (Pt 3K),
boxless type
• Away from direct air flows
TY7321C1007
W/ room temperature sensor (Pt 100) box
type.
TY7321C1015
W/ room temperature sensor (Pt 100)
boxless type.
• Away from lights
• 1 to 3 m away from window surface
Connection/Wiring
⑥
①
Dimensions & Parts Identification
Boxless type
⑤
②
Base mounting screw
148.5
Terminal cover
④
Mounting
bracket
③
Fig.3
Table 1
Terminal #
86
Packing
21
8.8
1.9
90
Sensing window
Connection destination
①
24V AC (~)
②
24V AC (⊥)
③
Radiant temperature output (+)
④
Radiant temperature output (⊥)
⑤
Room temperature sensor output
⑥
Room temperature sensor output
CAUTION
18
Disconnect power supply when wiring to prevent
electrical shock and equipment damage.
52
Fig.1
Boxless type dimensions (mm)
Wiring Instructions
Box type
Use M 3.5 connection terminal. The width of crimp-style
terminal must be the maximum 7.2 mm. Shielded
multi-core cables (CVV-S) of 1.25 mm² is recommended.
A 1.25 mm² IV cable may be used.
Be sure to ground the shielded cable on the controller
side. Use separate conduit for the power and the signal.
The maximum cable length is 100 m.
For TY7321C, connect the compensation line to the
terminal #6 together with sensor output.
74
8.8
21
1.9
Always check wiring before supplying power.
Never share 24 V AC transformer to other products.
90
Sensing window
18
52
Fig.2
Box type dimensions (mm)
3
AB-5361
Use of individual AC transformer
Follow the next instructions to prevent an induction current flowing from the sensor to the controller input circuit,
or to prevent an influence on the generating noise due to
inadequate time constant of the controller input.
• Use a controller with a low pass filter with a removal
ratio of 40dB or higher (normal mode).
• Connect an isolator to the controller input circuit if a
removal ratio is unknown.
• If you use a Azbil Corporation cotnroller, no problem
will occur.
CAUTION
Use insulated transformer to supply 24 V AC
power supply voltage.
Never share 24 V AC power supply with other
equipment.
If a transformer is shared with other equipment,
loop will be formed at common and the sensor
may be damaged.
• Transformer (24 V AC power supply) shared
24 V AC
Multi-loop
controller
Sensor
~
+
+
⊥
-
-
+
+
1) Bore an opening of φ65 -50 in the ceiling where the
sensor is to be installed, and remove the sensor from
the body.
Common
share
Sensor
~
Boxless type
0
φ65 -5
⊥
-
The transmitter will be
shorted if miss-wired.
Not Good
24 V AC
-
2) Pass the wires through the opening and attach M3.5
crimp-style terminals to the wires.
3) Connect the wires to the terminals of the base (refer
to Connection/Wiring).
Multi-loop
controller
Sensor
~
+
+
⊥
-
-
~
+
+
⊥
-
-
Common
share
Sensor
②
Use Philip’s head
screwdriver(+)
Not Good
Common loop formed
③
Fig.4
• Transformer (24 V AC) separated
24 V AC
4) When wiring is complete, put the terminal cover over
the base. Then pass the wires along the slits and
through the round holes.
Multi-loop
controller
Sensor
~
+
+
⊥
-
-
~
+
+
⊥
-
-
Terminal cover
Round hole
24 V AC
Sensor
Slit
Base
Good
No common loop formed
Fig.5
4
AB-5361
5) Insert mounting bracket into the square holes on both
sides of terminal cover. Turn the base mounting
screw two or three times to attach loosely.
Using outlet box for installation box
1) Bore an opening of φ70 -50 in the ceiling board
where the sensor is to be installed. Then pass wires
through the board and attach M3.5 crimp-style
terminal.
2) Connect wires to the screw terminal of the base.
Turn the base mounting
screw two or three times
to attach loosely
Mounting bracket
Screw
Terminal cover
Square hole
Base
Fig.9
Fig.6
3) Insert the base through the opening and fix the base
to the outlet box using M4 mounting screw.
6) Insert the base into the ceiling and tighten the base
mounting screw.
Base
Mounting screw
Fig.10
4) Install the sensor to the base.
Fig.7
7) Now insert the sensor into the base.
Checking
Base
1) To make sure that wiring was done correctly, hold the
palm of your hand in front of the sensing window.
Align the small slot on the sensor
with the tangle on the base and
turn the sensor until it clicks
Sensor
2) Make sure that sensor output voltage moves between
3 and 4V within 10 seconds.
Fig.8
8) Adjust the measurement coverage (refer to
Adjustment).
5
AB-5361
Adjustment
Maintenance
Turn the setting knob so that the sensing window faces
the center of the area of measurement. Use the
notched groove next to the sensing window for horizontal
movement.
To clean setting window, wipe lightly using cotton swab or
soft cloth with alcohol. (Do not use benzene or thinner).
1) The sensor moves 0 ° to 65 ° vertically.
Setting knob
(5°)
Fig.11
Setting
knob
(5°)
(13×5°)=65°
Fig.12
2) The sensor pivots 344 °
horizontally.
(344° movable)
Fig.13
Specifications are subject to change without notice.
Building Systems Company
http://www.azbil.com/
Rev.3.2
Jul. 2012
AB-5361 1H-H (W)
Printed in Japan.
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