Kalinsky

Electronic Pressure Gauge DMG 3

description:

The electronic pressure gauges of the series DMG 3 measures relative-, difference- and absolut pressure and velocity of flow in air and non aggressive gases.
These measured values are directed to a 0-10 V analog output. They are shown on a 3,5-digit LED-display with a figurehight of 14.2 mm.
Because of used piezoresistive cells the pressure gauge reaches high reliability and precision. The aluminium enclosure has a high mechanical stability and good EMC- properties.
It is suitable for installation into a control switchboard. The user is warned against overload pressure by a red LED on the front. An individual calibration certificate belongs to every delivered pressure gauge.

options:
  • two switch outputs with LED for each on the front
  • 4-20 mA - transmitter
  • RS 232 - interface
  • square rout output for measuring velocity of flow

applications:
  • control of airblowers
  • supervsion of airfilters
  • mechanical- and system engineering
  • environmental technology
  • liquid level control
  • pressure control in cleanrooms or spray chambers
  • medical engineering

technical data DMG 3 (difference pressure):

 

pressure range [mbar]

pressure range [kPa]

max. over- pressure [mbar]

linear error max.         [ % F.S.]

tempera-ture error max.         [ % F.S.]

0-50 C

long-term- stability                        [ % F.S.]

repeat-precisi on   [ % F.S.]

time of response

0-10 V output    [ms]

0 - 2.5

0 - 0.25

250

0.8

2

2

0.3

2

0 - 5

0 - 0.5

250

0.8

1

1

0.3

2

0 - 10

0 - 1

250

0.8

1

0.5

0.2

2

0 - 25

0 - 2.5

375

0.7

1

0.1

0.1

2

0 - 50

0 - 5

500

0.7

1

0.1

0.1

2

0 - 100

0 - 10

750

0.5

1

0.1

0.1

2

0 - 250

0 - 25

triple

0.5

1

0.1

0.1

2

0 - 500

0 - 50

triple

0.5

1

0.1

0.1

2

0 - 1000

0 - 100

triple

0.5

1

0.1

0.1

2

technical data DMG 3 (absolut pressure):

700-1100

10 - 110

triple

 0.9 mbar

2.3 mbar

0.1

0.1

2

technical data DMG 3 with electronic correction of linear error (difference pressure):

0 - 100

0 - 10

750

0.2

1

0.1

0.1

2

0 - 250

0 - 25

triple

0.2

1

0.1

0.1

2

0 - 500

0 - 50

triple

0.2

1

0.1

0.1

2

0 - 1000

0 - 100

triple

0.2

1

0.1

0.1

2

For special ranges please enquire.

operation temperature range:

-20 to +50 C

 

hysteresis:

maximum 0,1%

 

medium:

air and all non aggressive gases

 

power supply and output-signals:

Us optionally:

15-30 VDC  or 230 VAC +- 10 %

 

analog output:

0-10 V

 

load:

RL >= 2 k

 

connections:

electrical:

plug with 7-pole depht clamp for 0,14-1,5 mm2

 

pneumatic:

2 connections for tubes with 4 mm diameter inside

 

optionally two switching outputs:

loadability:

max. 230 VAC 1A

 

switch hysteresis:

ca. 2 % F.S.

 

optionally RS-232 interface:

data format:

8 bit without parity-bit, 1 stop-bit

  

baudrate:

9600

  

handshake:

xon / xoff

 

optionally 4-20 mA transmitter:

analog output:

4-20 mA  or 0-20 mA

 

 

RB >= 20 ... 100

 

optionally square root output:

DMG 3 can measure and display the velocity of flow if it is completet with a square root output. Therefor a measuring blend or a Prandtl-tube or accumulation-tube must be used.

 

analog output:

0-10 V

 

weight:

approxymately 380 g

 

protection class:

 

IP 54 (front)

 

technical drawings:

(unit of measure is mm)