Honeywell H7015B, H7015A PRODUCT DATA

COMBINED HUMIDITY/TEMPERATURE SENSOR

GENERAL

The H7015A Duct Humidity Sensor is a capacitance-type
relative humidity sensor for duct mounting.

The H7015B Combined Humidity / Temperature Duct Sensor
combines a capacitance type relative humidity sensor with a
Pt 1000, BALCO 500 or 20kΩ NTC temperature sensor in
one housing.

These sensors can be used

• for discharge, outside or return air control

• as high limit sensor e.g. for steam humidification

Models

OS-No. Temperature Sensor Type

H7015A1006

H7015B1004 Pt 1000

H7015B1012 BALCO 500

H7015B1020

-

20kΩ NTC

H7015A,B

DUCT HUMIDITY SENSOR/

PRODUCT DATA

FEATURES

• Pt 1000, BALCO 500, or 20kΩ NTC temperature

sensing element

• Wide sensing range

• Capacitance type sensing element for relative

humidity

SPECIFICATION

Power supply 24 Vac, ±20% (SELV)
15…30 Vdc
Current consumption 15 mA at 24 V

Ambient Limits

Operating temperature

- Terminal box 0...50 °C (32...122 °F)
Transport and -25...+60 °C (-31...+158 °F
storage temperature
Humidity 5...95% rh, non-condensing

Safety

Protection class III as per EN60730-1
Protection standard

- Terminal box IP54 as per EN60529
Flame retardant V1 as per UL94
terminal box plastic (ABS)

Dimensions see Fig. 2
Weight 300 g
Mounting duct

Temperature Sensor

Temperature sensing range -30...+70 °C (-22...+158 °F)

Nominal value

- Pt 1000 1000 Ω at 0 °C

- BALCO 500 500 Ω at 23.3 °C

- NTC 20 kΩ at 25 °C

Accuracy

- Pt 1000 ∆T/K = ±(0.3 + 0.005 • ⎪t⎪) [t in °C]
as per DIN IEC 751 Class B

- BALCO 500 ±0.4 K at 23.3 °C

- NTC ±0.3 K at 25 °C

Sensitivity

- Pt 1000 ≈3.85 Ω/K

- BALCO 500 2 Ω/K

Characteristic see EN0B-0476GE51

Response time at air velocity 5 m/s
τ

0.5 Pt 1000

τ

0.5 Balco 500

τ

0.5 NTC

< 60 s

< 45 s

< 85 s

)

Copyright © 2009 Honeywell Inc. • All Rights Reserved EN0B-0290GE51 R0209

H7015A,B DUCT HUMIDITY SENSOR / COMBINED HUMIDITY/TEMPERATURE SENSOR

Relative Humidity Sensor

Humidity sensing range 5...95% rh
Output signal 0...1 Vdc / 0...10 Vdc
≙ 0...100% rh
Output Impedance 1 V range 183 Ω
10 V range 274 Ω
Outputs short circuit protected

Sensitivity 10 mV / %rh or 100 mV / % rh
Accuracy at 25 °C / 24 Vac

5...10% rh ±10%

10...30% rh ± 5%

30...70% rh ± 3%

70...90% rh ± 5%

90...95% rh ±10%
Response time

τ

≈ 6 s at air velocity 5 m/s

0.5

OVERVIEW

The following sensors can be employed for the listed control systems:

control systems

Pt 1000 20kΩ NTC BALCO 500 0...1 Vdc 0...10 Vdc

Excel Classic X X X X

Excel Plus X X X X

High Performance Excel Plus X X X X

Excel EMC X X X X

Excel 500/600 (XF521) X X X

Excel 500/600 (XF526) X X X X

Excel 20 & 50 X X

Excel 80B & 100B X X X

Excel IRC Multicontroller R7451A1030 X X

MicroniK 100 X X

MicroniK 100 “NEW“: R7420B1036/R7420F1045 X X X

MicroniK 200 X X X X

temperature humidity

INSTALLATION

Wiring

wiring run maximum length

sensor to controller 200 m (660 ft)

Offset for temperature sensor due to wire resistance per 10 m
distance from sensor to controller:

type of wire temperature offset

Pt 1000 BALCO 500 NTC

0.5 mm2

(AWG20)

1.0 mm2

(AWG17)

1.5 mm2

(AWG15)

0.18 K (0.324 °F) 0.3 K (0.54°F)

0.09 K (0.162 °F) 0.15 K (0.27°F) negligible

0.06 K (0.108 °F) 0.1 K (0.1°F)

NOTE: Installation of the sensor near high EMI-emitting

devices may lead to faulty measurements.

Use shielded wiring in areas with high EMI.

Keep 15 cm (5.9’’) min. distance between sensor
lines and 230 Vac power lines.

Use two transformers: one for sensors and actuators
and one for the controller.

EN0B-0290GE51 R0209 2