Azbil HTY7903T Specifications & Instructions
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Azbil HTY7903T Specifications & Instructions

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Insertion Dewpoint Temperature Sensor
Model HTY79X3T (with Separate Temperature Sensor),
General
Insertion dewpoint temperature sensor Model HTY79X3T
series uses a Pt100 resistant thermometer sensor (JIS*
C1604 Class A, equivalent to IEC60751: 95 Class A) for a
temperature sensing element, and a polymer capative
™
humidity sensor (FP3
Corporation ) for a dewpoint temperature sensing element,
enhancing accuracy and reliability of temperature sensing. It
is suitable for various applications such as a duct or chamber
for building air conditioning and outdoor air measurement, as
well as industrial applications. Model HY79X3 series (for
dewpoint temperature sensing without temperature sensor)
is also available.
∗ JIS: Japanese Industrial Standards
Features
•
Wide dewpoint temperature sensing range with high
accuracy.
•
Highly environmental resistance.
•
Excellent long term stability.
•
Quick response and high repeatability.
Model HY79X3T
specially developed by Azbil
Model HTY7903T
•
Easy installation in a duct/chamber with the quick
detachable bracket (dedicated).
•
Dust-proof and splash-proof housing (IP54).
•
CE Marking certified product:
Models HTY79X3T and HY79X3T conform to all the
applicable standards of CE Marking.
1
AB-5963
Specifications/Instructions
Model HTY7913T

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Summary of Contents for Azbil HTY7903T

  • Page 1 ™ humidity sensor (FP3 specially developed by Azbil Corporation ) for a dewpoint temperature sensing element, enhancing accuracy and reliability of temperature sensing. It is suitable for various applications such as a duct or chamber for building air conditioning and outdoor air measurement, as well as industrial applications.

  • Page 2: Safety Instructions

    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 a clean room or a place where reliability or control accuracy is particularly required, please contact Azbil Corporation’s sales representative.

  • Page 3: Model Numbers

    AB-5963 Model Numbers Base model Power Humidity Temperature Shape Type Fixed Description number supply output output HTY79 Insertion dewpoint temperature sensor (with separate temperature sensor) HY79 Insertion dewpoint temperature sensor Insertion length: Long Insertion length: Short ⎯ 24 V DC / 24 V AC Dewpoint temperature output: 1-5 V Dewpoint temperature output: 4-20 mA Dewpoint temperature output: 0-10 V...

  • Page 4: Specifications

    AB-5963 Specifications Item Specification -20 °C to 60 °C Measurement range Temperature Dewpoint temperature -40 °C to 60 °C DP (-20 °C to 60 °C) (non-condensing) 100 Ω / 0 °C Output signal Temperature Dewpoint temperature Models HTY79X3T1, HY79X3T1 series: 1 V DC to 5 V DC (linear to -40 °C to 60 °C DP) (Input impedance of the controller connected: 10 kΩ...
  • Page 5 AB-5963 Dimensions Models HTY7903, HY7903 series 247.6 51.3 67.3 45.6 Models HTY7913, HY7913 series 108.6 51.3 67.3 45.6 Mounting bracket Part No. 83157235-001 62.5 72.3 Figure 1. Dimensions (mm)

  • Page 6: Installation

    AB-5963 Installation 3) Cover the duct with an insulating material. (If the duct is already covered with it, partially remove the insulating Installation requirements material for the bracket. Then, fill the clearance between • Select a location where the typical temperature and the bracket and the duct with the insulating material after humidity of the measured gas can be sensed with the fixing the bracket.)
  • Page 7 AB-5963 Installing Models HTY7913, HY7913 series 4) Completely insert the probe into the panel. Then, fix the (for equipment, including chamber and thermometer probe and the bracket by turning the stopper 45 degrees shelter, insertion) (from ‘b’ to ‘a’ shown in Fig. 10) to lock. 1) Prepare the dedicated mounting bracket.
  • Page 8 AB-5963 Conduit connection Then, tighten the seal connector (for seal connector Prepare the appropriate conduit set (with separate order connection). required), depending on the quantity of core cables. Temporarily screw the conduit connector and the attachment, and select an O-ring appropriate for the cable.

  • Page 9: Wiring Requirements

    • No problem will occur for connecting with the controllers provided by Azbil Corporation. 24 V AC Transformer shared with two sensors ∗ Fig. 18 shows wiring example of Model HY79X3T. IMPORTANT:...

  • Page 10: Maintenance

    AB-5963 Maintenance Filter replacement: Since the dewpoint temperature sensor is inspected and  CAUTION calibrated for high accuracy at the factory before shipment, • Installation must be performed by qualified no field calibration is necessary. Follow the maintenance  personnel in accordance with all applicable instructions below: safety standards.

  • Page 11: Handling Precautions

    AB-5963 3) Cover the sensing element with the new filter (‘1’ in Fig. Humidity single-point calibration 24) and then with the new filter cap (‘2’ in Fig. 24). for Model HY79X3T/HTY79X3T When you find an output error of the dewpoint temperature Filter cap sensor, the sensor can be calibrated with the adjustment knob RH1 located inside the dewpoint temperature sensor.
  • Page 12 AB-5963 Specifications are subject to change without notice. Building Systems Company http://www.azbil.com/ Rev. 6.0 Sep. 2015 AB-5963 (J: AI-5963 Rev. 5.2) Printed in Japan.

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Hty7913t

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