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AB-5961 

Specifications 

Item Specifications 

Temp. 

-20 to 60 °C 

Measurement range 

Humid. 

0 to 100 % RH (-5 to 55 °C) 

Temp. 100 

Ω

  / 0 °C 

Ouput signal 

Humid. 

1-5 V DC (linear to 0 to 100 % RH) (output impedance: min. 10 k

Ω

0-10 V DC (linear to 0 to 100 % RH) (output impedance: min. 10 k

Ω

4-20 mA DC (linear to 0 to 100 % RH) (maximum permissible load 300 

Ω

Temp. 

+/- 0.3 °C (at conditions of -20 to 60 °C) 

Sensing accuracy 

Humid. 

+/- 3 % RH (at conditions of 30 to 70 % RH 25 °C) 
+/- 5 % RH (at conditions of 20 to 80 % RH 15 to 35 °C) 

Temp. 

TY series 

max. 1 min. 

HTY, HY series 

max. 4 min. 

Time constant 
(at air velocity 2 m/s) 

Humid. 

Max. 1 min 

Temp. 

Rated operating conditions: 

-20 to 60 °C 

0 to 100 % RH (non-condensing) 

Extreme operating conditions:  -20 to 60 °C 

0 to 100 % RH (non-condensing) 

Storage conditions: 

-30 to 70 °C 

5 to 95 % RH (non-condensing) 

Humid. 

Rated operating condtions: 

-5 to 55 °C 

10 to 100 % RH (non-condensing) 

Extreme operating condtions:  -20 to 60 °C 

0 to 100 % RH (non-condensing) 

Storage conditions: 

-30 to 70 °C 

5 to 95 % RH (non-condensing) 

Environmental 
conditions 
 

Air velocity  Extreme operating conditions:  0 to 15 m/s 

Power supply 

24 V AC +10/-15 % (50/60 Hz), 24 V DC +/- 10 % (only for HTY

HYseries) 

Power consumption 

0.2 VA 

(at conditions of 24 V AC

HTY, HY series 1-5 V, 0-10 V output model) 

150 mW 

(at conditions of 24 V DC

HTY, HY series 1-5 V, 0-10 V output model) 

1.0 VA 

(at conditions of 24 V AC

HTY, HY series 4-20 mA output model) 

800 mW 

(at conditions of 24 V DC

HTY, HY series 4-20 mA output model) 

Dielectric strength 

500 V AC less than 1 mA of leak for 1 minute 

Insulation resistance 

500 V DC min. 20 M

Ω

 

Vibration resistance 

9.8 m/s² (10 to 150 Hz) 

Protection 

Housing IP54 (when splash-proof connectors and designated multi-core cables are used or when a 
designated conduit is used) 
The head of TY series is IP24 

Installation 

Duct, air chamber, ventilated case for meteological instruments (with special bracket) 

Wiring 

 

Terminal block connection 

Material 

Housing: 

GF20 % Polycarbonate mixed resin, gray (equivalent to DIC-651) 

Filter cap: 

Denatured PPE resin, gray (equivalent to DIC-651) 

Weight 

Approx. 240 g (7803 series) Approx. 210 g (7813 series) 

Accessories None 
Order separatly 

83157235-001 

Mounting bracket 

83157240-004 

Conduit mounting set (for HTY, HY series

applicable cable outer diameter 11 to 14 

φ

83157240-009 

Conduit mounting set (for TY series

applicable cable outer diameter 9.4 to 11 

φ

83104098-004 

Seal connector (for HTY, HY series

applicable cable outer diameter 10.5 to 14.5 

φ

83104098-003 

Seal connector (for TY series

applicable cable outer diameter 8.5 to 12.5 

φ

DY8000A1001 

Sensor shield for outdoor 

DY3002A1005 

Ventilated case mounting bracket (L shape metal) 

Order separately for 
maintenance 

83162945-003 Filter 

set 

 
HTY78*3/HY78*3 series have passed the following tests: 
EN50081-1/1992 (EN55011/1998 group 1, class B) 
EN50082-1/1997 (EN61000-4-2, EN61000-4-3, ENV50204, EN61000-4-4, EN61000-4-5, EN61000-4-6, 
EN61000-4-11) 

Summary of Contents for HTY78 3 Series

Page 1: ...y only are also available Features 1 Wide sensing range 2 Excellent long term stability 3 Highly resistant to environment 4 Quick response and high repeatability 5 Easy to install in a duct bracket prepared 6 Splash proof housing IP54 7 No need of maintenance for the head of TY series splash proof without filter Models Model No Shape Type Power supply Humidity output Temperature output Fixed Fixed...

Page 2: ...roduct properly Please keep this instruction on hand for reference at any time 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 Yamatake s sales representatives Yamatake Buildin...

Page 3: ... series 4 20 mA output model 800 mW at conditions of 24 V DC HTY HY series 4 20 mA output model Dielectric strength 500 V AC less than 1 mA of leak for 1 minute Insulation resistance 500 V DC min 20 MΩ Vibration resistance 9 8 m s 10 to 150 Hz Protection Housing IP54 when splash proof connectors and designated multi core cables are used or when a designated conduit is used The head of TY series is...

Page 4: ...4 AB 5961 Dimensions mm 1 7803 series 2 7813 series 3 Mounting bracket 62 5 25 50 60 40 60 72 3 φ30 3 3 108 6 51 3 45 6 67 3 70 φ20 110 1135 247 6 51 3 45 6 67 3 A 70 φ20 110 1135 A ...

Page 5: ...t the point indicated on the label Fix the mounting bracket onto the duct with M4 screws inserting packing between the duct and the bracket Cover the duct with an insulating material If you cover the duct with an insulating material first fill the clearance between the bracket and the duct with the insulating material after fixing the bracket 2 Turn the stopper of the main unit to the left and ins...

Page 6: ...t where the conduit lock screw can be tightened easily 2 Connect the wires to the terminals and close the cover Tighten the seal connector only when cable connected Terminal Nos and cable cores Nut attached to conduit Attachment Conduit connector nominal size 25 mm Tighten Allow sufficient service clearance Pt 100 1 2 3 4 5 6 7 A B B 24 V AC 24 V DC 1 5 V DC 0 10 V DC 4 20 mA HTY7803T1P00 HTY7803T...

Page 7: ... 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 Yamatake controller no problem will occur Maintenance Since the temperature humidity sensor have been in spected and adjusted accurately bef...

Page 8: ...ration error in the humidity sen sor re calibrate the sensor using the adjustment vol ume VR1 VR2 located on the circuit board The output value is increased by turning this volume in clockwise direction and decreased by turning it coun terclockwise Use referenced humidity meter of ade quate accuracy A digital multimeter is recom mended to check the output voltage Parts Identification of adjustment...

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