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Pressure Measurement Amplifier DMV 4000
1. General Description:
The Gneuss pressure measurement amplifier type DMV 4000 is a measurement amplifier for pressure
transducers with strain gauge technology. Universal setting possibilities guarantee that all pressure
transducers with 1 to 4 mV output signal can be connected. Furthermore, three freely-adjustable limit
contacts and one optional analogue signal 0-10 V, 0-20 mA or 4-20 mA can be processed. A peak
hold function, simple operation via a touch sensitive keypad and extreme sturdiness guarantees a high
ease of operation. The unit can be protected against unauthorized use via possible software settings.
2. Technical specifications:
Dimensions:
96 mm x 48 mm (1/8 DIN front housing) x 110 mm
Incl. Terminal block with quick-lock function by means of plastic clamps, for
wall thicknesses of up to 10 mm.
Colour:
Dark grey
Weight:
approx. 250 g
Panel cut- out size:
92,0
+0,8
x 45,0
+0,6
IP rating:
From front IP 65, connection IP 00
Input:
Wheatstone resistance bridge 350
Ω
....10 K
Ω
Supply voltage:
5 VDC transducer supply
Sensitivity:
1 mV/V….4mV/V
Relay Contacts:
Up to 3, over the overall measuring span freely adjustable relays
Switching capacity: 250 VAC = 2A / 120 VAC = 4A
Fail –Safe feature:
Performance control – Sensor connections
Accuracy:
+/- 0,1 % of measuring value, +/- 1Digit
Ambient temperature influence <0.1 %/20 °C
Power supply:
Supply voltage 100…230 VAC +/- 10 %, 50 - 60 Hz.
Power consumption approx. 4 W (optional 24 V DC)
Display:
5-digit seven segment LEDs, 15 mm high, luminous: green or
red when exceeding a preset alarm parameter, indicating range
-99999….99999, arithmetic overflow is indicated by 5 cross-ledgers
Connection of the
Instrument:
On the reverse via a 36-pole terminal block
Ambient conditions:
Operating temperature 0-50 °C / humidity level 5….95 % (no condensation)
Analogue output:
0-20 mA or 4-20 mA at current load 750
Ω
/15 V max.
0-10 V at 500
Ω
resistance at 0-20 mA set parameter
