D Series Sensors for Humidity and Temperature Measurement With

D Series
Sensors for
Humidity and Temperature Measurement
With calibrated dModul
Type DW
Industrial version for wall mounting
Optional display
• dynamic MELA® humidity sensing element
• output of all hx values
• calibrated dModul for
humidity and temperature measurement
• in situ alignment
• easy to install
• operating temperatures up to 80°C
The core part of the D Series is the digital calibrated dModul,
which processes the measurement values of relative humidity
and temperature individually. The values are compared to the
calibration values stored in the dModul and communicated
digitally to the transmitter electronics, where they are processed
to standardised current and voltage signals.
The housings of the industrial versions provide protection in accordance with IP 65. Only a single screw is required to close it
securely.
Technical data
Humidity
Electrical data
measuring element
capacitive MELA FE09
output range
0...100 %RH
measuring uncertainty
10...90 %RH
at 10...40°C
< 10 %RH or > 90 %RHat 10...40°C
influence of temperature <10°C or >40°C
±2 %RH
±2.5 %RH
±0.05 %RH/K
0...1 V
0...10 V
4...20 mA
passive temperature outputs on request
voltage supply
see type survey
consumption of electronics
(voltage output)
load resistance
(voltage output)
Temperature
measuring element
output ranges
outputs
Pt1000 1/3 DIN
0...+50°C
-30...+70°C
0...+100°C
further ranges on request
measuring accuracy
sensors with active temperature signal
with voltage output at 10...40°C
with current output at 10...40°C
influence of temperature <10°C or >40°C
load RL
(current output)
electromagnetic
compatibility
typ. 7 mA
≥10 kΩ
RL(Ω)=
voltage supply - 10 V ±50 Ω
0,02 A
ref. EN 61326-1
and EN 61326-2-3
±0.2 K
±0.3 K
±0.01 K/K
D Series_DW
page 1 of 6
General data
measuring medium
Physical outputs, selectable for two outputs
air, pressureless, non-aggressive
max. air speed
protective cage w. membrane
(basic equipment)
10 m/s
min. air speed
≥ 0.5 m/s
operating temperatures
-30...+80°C
storage temperatures
-40...+85°C
connecting terminals
max. 1.5 mm²
4-8 mm
connection
wire diameter per connector
total diameter cable
degree of protection / measuring head
protective cage w. membrane
(basic equipment) PTFE sinterd filter (optional)
IP 30
IP 65
degree of protection / housing
relative humidity
temperature
-30...+70°C
0...100°C
0...50°C
further ranges on request
dew point temperature
-20...70°C
enthalpy
0...80 kJ/kg
mixing ratio
0...100 g vapour /kg dry air
absolute humidity
0...20 g/m³
or 0...100 g/m³
wet-bulb temperature
-10...50°C
Load at current output
IP 65
material of housing
0...100 %RH
PC
Ω 1200
1000
800
600
Options
display
2 lines
3 digits + 1 decimal place
display approx. 21 x 40 mm²
digit height approx. 8 mm
400
200
10
15
20
25
30
V DC
Type survey DWF
Humidity sensor
Type
Housing
Physical value
for wall mounting
DWF
optional display
relative humidity
Output signal
Electrical
Voltage
corresponds to
outputs
supply UB
0…100 %RH
0…1 V
6…30 V DC
6...26 V AC
0...10 V
15…30 V DC
13...26 V AC
4...20 mA
10…30 V DC
Type survey DWK
Humidity and temperature sensor
Type
DWK
Housing
Physical value
Output signal
Electrical
Voltage
for wall mounting
selectable for 2 outputs
corresponds to
outputs
supply UB
optional display
relative humidity
temperature
dew point temperature
enthalpy
mixing ratio
absolute humidity
wet-bulb temperature
Passive temperature output available on request.
D Series_DW
page 2 of 6
0…100 %RH
0…1 V
-30…+70°C
0…+100°C
0…+50°C
-20…70°C
6…30 V DC
6...26 V AC
0...10 V
15…30 V DC
13...26 V AC
4...20 mA
10…30 V DC
0…80 kJ/kg
0…100 g vapour
/kg dry air
0…20 g/m³
0…100 g/m³
-10…+50°C
Accessories
Product n°
Description
ZE05
sintered filter made of fine-pored PTFE, IP 65
ZE 31/1-12
ZE 31/1-75
humidity standard to check the accuracy of the sensor at 12 %RH
humidity standard to check the accuracy of the sensor at 75 %RH
ZE 31/1-33
ZE 31/1-84
humidity standard to check the accuracy of the sensor at 33 %RH
humidity standard to check the accuracy of the sensor at 84 %RH
ZE36
testing adapter for humidity standards for for sensor tubes Ø 12 mm
15
1
18
40
Dimensions
26
57
83
83
50
12
The hole pattern of
the sensor is located
on the packaging.
D Series_DW
page 3 of 6
Connection diagrams
DWK 2 x 4...20 mA
DKK 2x 4…20 mA
DWF 4...20 mA
1
2
output humidity
3
+ UB
4…20 mA
10…30 V DC
DWF 0...1 V
DIF 0…1 V DC
1
output temperature 4…20mA
2
output humidity
4…20 mA
3
+ UB
DC
10…30 V DC
DWK 2 x 0...1 V
DKK 2x 0…1 V
1
GND
2
+ UB
3
output humidity
6…30 V DC or 6…26 V AC
0…1 V
4
DWF 0...10
DIF V
0…10 V DC
1
GND
2
+ UB
3
sortie humidité
4
sortie température 0…1 V
6…30 V CC ou 6…26 V CA
0…1 V
DWK 2 DIK
x 0...10
V V
2x 0…10
1
GND
1
GND
2
+ UB 15…30 V DC or 13…26 V AC
2
+ UB
3
output humidity
3
output humidity
4
output temperature 0…10 V
4
0…10 V
15…30 V DC or 13…26 V AC
0…10 V
ESD protection advice
The sensors of the D Series contain components, which can be damaged by the effects of electrical fields or by charge equalisation when touched.
The following protective measures must be taken when the housing of the sensor is to be opened for connection or in situ
alignment:
•
•
Before opening the housing of the sensor, ensure electrical potential equalisation between you and your environment.
Pay particular attention to ensure that this potential equalisation is maintained while you are working with the opened housing.
D Series_DW
page 4 of 6
In situ alignment
During the in situ alignment the sensor does not necessarily have to be taken out of the control circuit.
We offer humidity standards for alignment of the sensors (page 3: accessories).
Before calibrating the sensor, standards should remain at least 2 hours on the sensors.
The temperature must remain constant during this time. For the correct temperature according to the humidity standard used,
please refer to data sheet F5.2 Humidity Standards.
During calibration temperature and humidity must remain constant.
During calibration, especially during storage of data, uninterrupted power supply of the sensor must be provided.
During calibration the following measurement ranges are shown on the display/ are used for calibration:
CH 1: all sensors
always: relative humidity, measuring range 0...100 % RH
CH 2: sensors with relative humidity RH output (CH1)
and temperature °C output (CH2)
the programmed temperature range, unaltered
sensors
with other hx-values outputs
the standard temperature measuring range of -40...85°C
The accuracies shown in the technical data of this data sheet refer exclusively to works calibration.
Command
Operation
Transmitter / LED
press buttons
UP and DOWN
simultaneously
for at least 8 sec.
until LED lights up for 1 sec.
press button DOWN
for at least 3 sec.
until LED blinks
1 time per second
no further command
necessary
LED blinks
1 time per second.
press button DOWN
1 time shortly
LED blinks
twice per second.
press button DOWN
twice shortly
LED blinks
3 times per second.
press button DOWN
3 times shortly
LED blinks
4 times per second.
Confirmation
of selection
press button UP
for at least 3 sec.
until LED lights up permanently
adjustment
buttons UP / DOWN:
(press shortly)
+/- 0.1 %RH respectively
+/- 0.1°C per keystroke
saving
press button DOWN
for at least 3 sec.
until LED is off
program termination
(at any time)
press button UP
for at least 3 sec.
until LED blinks 6 times and
then switches off.
default
attention:
all user adjustments will be
reset.
possible only when
adjustment mode is off.
(LED must not be lit.)
calibration mode
selection of
type of calibration
humidity
1-point-adjustment
(offset)
humidity
2-point-adjustment
lower point at 12 %RH and
20...30°C
humdity standard ZE31/1-12
humidity
2-point-adjustment
upper point at 75 %RH and
20...30°C
humdity standard ZE31/1-75
temperature
1-point-adjustment
D Series_DW
page 5 of 6
Mounting instructions
Position
Install the sensor at a place where characteristic levels of humidity occur. The measuring chamber should be located in streaming air. Avoid installation next to heaters,
doors or on outer walls. Avoid places exposed to the sun.
Do not position the sensor where ingress of water could occur.
To close the housing securely turn screw until dead stop.
We recommend that you lay the connection lines in a loop so that any water that
may be present can run off.
Not reaching the given minimum air speed can lead to measurement errors.
Connection
The electrical connection must be carried out by qualified personnel only.
The sensor contains sensitive electrical components. When opening the housing,
make sure you comply with the electrostatic discharge precautions (ESD).
Please pay attention to the ohmic resistance according to the operating voltage (see
diagram on page 2) when using sensors with a current output. Else measurement
errors may occur.
Lines to and from the sensor must not be installed parallel to strong electromagnetical
fields.
If there is any chance of an electrical surge, please install surge protection devices.
User instructions
Dew formation
Dew formation and splashes do not damage the sensor, although measurement
readings are corrupted until all moisture on and around the sensing element has
dried up completely.
Cleaning of
filters and
protective baskets
If necessary, soiled filters can be screwed off and rinsed carefully. Bear in mind the
sensors wil not measure accurately until filters are completely dry. Please do not
touch the highly sensitive humidity sensing element. Please ensure that the temperature sensing element does not touch the sensitive surface of the humidity sensing
element.
Cleaning of
the capacitive
humidity sensing element
Loose dust can be carefully cleaned off the humidity sensing element using distilled
water or by blowing the dust carefully off. Please do not touch the highly sensitive
humidity sensing element. Please ensure that the temperature sensing element does
not touch the sensitive surface of the humidity sensing element.
Damaging influences
Depending on type and concentration, agents that are corrosive and contain solvents,
can result in faulty measurements and can cause the sensor to break down.
Substances deposited on the sensor (e. g. resin aerosols, lacuer aerosols, smoke
deposits etc.) are damaging as they eventually form a water-repellent film.
This information is based on current knowledge and is intended to provide details of our products and their possible applications.
It does not, therefore, act as a guarantee of specific properties of the products described or of their suitability for a particular
application. It is our experience that the equipment may be used across a broad spectrum of applications under the most varied
conditions and loads. We cannot appraise every individual case. Purchasers and/or users are responsible for checking the equipment for suitability for any particular application. Any existing industrial rights of protection must be observed. The quality of our
products is guaranteed under our General Conditions of Sale. Data sheet DW_EN. Issue: March 2013. Subject to modifications.
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