Differential pressure transmitter for air up to 5000 Pa Aug 14

Differential pressure transmitter for air up to 5000 Pa Aug 14
DTL
Differential pressure transmitter
for air up to 5000 Pa
DTL is a transmitter for measuring differential pressure in air and neutral gases in air-handling systems etc, e.g. for
controlling pressure in ventilation systems.
* Several measuring ranges within 0...5000 Pa
* High level of accuracy and stability
* Output signal 0...10 V or 4...20 mA
* With or without display
* Quick and easy mounting
* Models with square root output signal
Function
The transmitter consists of a plastic sensor-housing and
a membrane of silicon LSR. The differential pressure
affects the membrane which is connected to the sensor
element.
The element is manufactured with state-of-the art technology with a ceramic beam onto which thick-film resistors have been applied. The pressure on the membrane
causes a movement which is transferred to the ceramic
beam. Flexing of the beam gives changes in resistance.
The changes in resistance are transmitted by means of
built-in electronics to an analogue output signal.
The measuring element gives a rapid response and a
high level of accuracy.
The properties of the ceramic element ensure that the
transmitter has excellent long-term stability.
The sensor housing
The sensor housing is made of transparent plastic. The
cable input is on the left hand side with cable gland. The
cover, of red plastic, is closed by a single screw and can
easily be detached from the hinges when mounting.
Display
DTL is also available with LCD display (3 ½ digits ) on the
front showing the current pressure.
See also model DMD, leaflet 4-340 for differential pressure sensor with display.
Square root calculation
This is used in applications with Prandtl-tube measurement giving the differential pressure depending on the
current airflow. DTL can be supplied with built-in conversion of the output signal to the square root of the differential pressure being measured. In this case DTL gives an
output signal that is proportional to the current airflow.
Mounting
The sensor should be mounted vertically using screws in
the mounting holes on the back edge.
There are also two mounting holes on the upper side of
the sensor housing.
Connection set
A connection set consisting of tubing and pressure outlets
can be supplied as accessory to DTL. See overleaf.
section position
6-605
Aug 14
Models
Output signal 0...10 V DC Output signal 4...20 mA
DTL05/05
-50...+50 Pa
DTL05/05-420
-50...+50 Pa
DTL3
0...300 Pa
DTL1-420
0...100 Pa
DTL5
0...500 Pa
DTL3-420
0...300 Pa
DTL10
0...1000 Pa
DTL5-420
0...500 Pa
DTL16
0...1600 Pa
DTL10-420
0...1000 Pa
DTL25
0...2500 Pa
DTL16-420
0...1600 Pa
DTL50
0...5000 Pa
DTL25-420
0...2500 Pa
DTL50-420
0...5000 Pa
Transmitter with display has a suffix -D. I.e.: DTL25-D, DTL3-420-D.
Technical data
Supply voltage
Power consumption
Output signal
Load impedance
24 VAC +15/-10% or 18...33 V DC. (4...20 mA version only 18...33 V DC)
10 mA (0...10 V), 30mA (4...20 mA)
0...10 V or 4...20 mA (0...20 mA on request)
> 10 kohm (0...10 V), < 400 ohm (4...20 mA)
Maximum differential pressure
Measuring range up to 300 Pa: 5kPa
Measuring range over 500 Pa: 10 kPa
Pressure connection
Connection pipes for 6mm tube
Cable connection
Screw terminals. Cable gland with built-in strain relief Pg 11.
Cable
Three wire. Flexible cable is recommended.
Mounting
Vertical with the pressure connections downwards
Material sensor housing
Transparent plastic
membrane
LSR (silicon)
Form of protection
IP54
This product conforms with the requirements of European EMC standards CENELEC EN50081-1 and EN50082-1 and carry the CE-mark.
RoHS: Ce produits répond aux exigences de la directive 2011/65/EU du Parlement
européen et du Conseil.
Accuracy
linearity
hysteresis
Temperature dependense
Ambient temperature
Storage temperature
Dynamic responstime
Resolution
ANS
DTV-ANSLUTNING
< +/-0,7 % fs
< +/-1,0 % fs
< 0,04% fs /°C
fs = fullscale, over the whole range
0...+70°C
-10...+70°C
< 10 ms
Measuring range up to 100 Pa: < 0,2% fs : < 0,1% fs elsewhere
Mounting kit with 2m plastic tube and 2 pressure outlets.
Pressure connection of metal, angled 90°
Dimension and wiring
DTL
+
0-10 V
Supply voltage 24 V AC / 18...33 V DC
 Output signal 0...10 V DC
0 System neutral
DTL
+
4...20 mA (two wire connection)
Supply voltage 18...33 V DC
 Output signal 4...20 mA
Head Office Sweden
Phone: +46 31 720 02 00
Web:www.regincontrols.com
Mail:[email protected]
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