DMP 331
$350.00
Industrial Pressure Transmitter for Low Pressure
Stainless Steel Sensor
- accuracy according to IEC 60770:
- standard: 0.35 % FSO
- option: 0.25 / 0.1 % FSO
The pressure transmitter DMP 331 can be used in all industrial areas when the medium is compatible with stainless steel 1.4404 (316 L) or 1.4435 (316 L). Additional are different elastomer seals as well as a helium tested welded version available.
The modulare concept of the device allows to combine different stainless steel sensors and electronic modules with a variety of electrical and mechanical versions.Thus a diversity of variations is created, meeting almost all requirements in industrial applications
Preferred areas of use are
- Plant and machine engineering
- Environmental engineering (water – sewage – recycling)
- Energy industry
Stock Available
- Input pressure range
- Output signal / Supply
- Performance
- Thermal effects (offset and span)
- Permissible temperatures
- Electrical protection
- Mechanical stability
- Materials
- Explosion protection (only for 4…20 mA / 2-wire)
- Miscellaneous
Input pressure range
| Nominal pressure gauge [bar] | -1…0 | 0.10 | 0.16 | 0.25 | 0.40 | 0.60 | 1 | 1.6 |
| Nominal pressure abs. [bar] | – | – | – | – | 0.40 | 0.60 | 1 | 1.6 |
| Overpressure [bar] | 5 | 0.5 | 1 | 1 | 2 | 5 | 5 | 10 |
| Burst pressure ≥ [bar | 7.5 | 1.5 | 1.5 | 1.5 | 3 | 7.5 | 7.5 | 15 |
| Nominal pressure gauge / abs. [bar] | 2.5 | 4 | 6 | 10 | 16 | 25 | 40 | 60 |
| Overpressure [bar] | 10 | 20 | 40 | 40 | 80 | 80 | 105 | 105 |
| Burst pressure ≥ [bar] | 15 | 25 | 50 | 50 | 120 | 120 | 210 | 210 |
|
Vacuum resistance
|
pN ≥ 1 bar: unlimited vacuum resistance | |||||||
| pN < 1 bar: on request | ||||||||
Output signal / Supply
| Standard | 2-wire: | 4…20 mA | VS = 8…32 VDC |
SIL-version: VS = 14…28 VDC
|
| Option IS-protection | 2-wire: | 4…20 mA | VS = 10…28 VDC |
SIL-version: VS = 14…28 VDC
|
|
Options 3-wire
|
3-wire:
|
0…20 mA | VS = 14…30 VDC | |
| 0…10 V | VS = 14…30 VDC | |||
Performance
|
Accuracy1
|
standard:
|
nominal pressure < 0.4 bar: ≤ | ≤ ± 0.50 % FSO |
| nominal pressure ≥ 0.4 bar: | ≤ ± 0.35 % FSO | ||
| option 1: | ≤ ± 0.25 % FSO | ||
| option 2: | nominal pressure ≥ 0.4 bar: | ≤ ± 0.10 % FSO | |
|
Permissible load
|
current 2-wire: | Rmax = [(VS – VS min) / 0.02 A] Ω | |
| current 3-wire: | Rmax = 240 Ω | ||
| voltage 3-wire: | Rmin = 10 kΩ | ||
|
Influence effects
|
supply: 0.05 % FSO / 10 V | ||
| load: 0.05 % FSO / kΩ | |||
| Long term stability | ≤ ± 0.1 % FSO / year at reference conditions | ||
|
Response time
|
2-wire: | ≤ 10 msec | |
| 3-wire: | ≤ 3 msec | ||
1accuracy according to IEC 60770 – limit point adjustment (non-linearity, hysteresis, repeatability)
Thermal effects (offset and span)
| Nominal pressure pN [bar] | -1…0 | < 0.40 | ≥ 0.40 |
| Tolerance band [% FSO] | ≤ ± 0.75 | ≤ ± 1 | ≤ ± 0.75 |
| in compensated range [°C] | -20…85 | 0…70 | -20…85 |
Permissible temperatures
| Medium | -40…125 °C |
| Electronics / environment | -40…85 °C |
| Storage | -40…100 °C |
Electrical protection
| Short-circuit protection | permanent |
| Reverse polarity protection |
no damage, but also no function
|
| Electromagnetic compatibility |
emission and immunity according to EN 61326
|
Mechanical stability
| Vibration | 10 g RMS (25…2000 Hz) |
according to DIN EN 60068-2-6
|
| Shock | 500 g / 1 msec |
according to DIN EN 60068-2-27
|
Materials
| Pressure port | stainless steel 1.4404 (316 L) | |
| Housing | stainless steel 1.4404 (316 L) | |
|
Option compact field housing s
|
stainless steel 1.4301 (304) | |
| cable gland M12x1.5, brass, nickel plated (clamping range 2 … 8 mm) | ||
|
Seals
|
standard: | FKM |
|
options:
|
EPDM | |
|
welded version2 (for pN ≤ 40 bar)
|
||
| others on request | ||
2welded version only with pressure ports according to EN 837, pN ≤ 40 bar
Explosion protection (only for 4…20 mA / 2-wire)
|
Approvals DX19-DMP 331
|
IBExU 10 ATEX 1068 X / IECEx IBE 12.0027X |
| zone 0: II 1G Ex ia IIC T4 Ga | |
| zone 20: II 1D Ex ia IIIC T135 °C Da | |
|
Safety technical maximum values
|
Ui = 28 V, Ii = 93 mA, Pi = 660 mW, Ci ≈ 0 nF, Li ≈ 0 μH, |
| the supply connections have an inner capacity of max. 27 nF to the housing | |
|
Permissible temperatures for environment
|
in zone 0: -20…60 °C with patm 0.8 bar up to 1.1 bar |
| in zone 0: -20…60 °C with patm 0.8 bar up to 1.1 bar | |
|
Connecting cables (by factory)
|
cable capacitance: signal line/shield also signal line/signal line: 160 pF/m |
| cable inductance: signal line/shield also signal line/signal line: 1 μH/m |
Miscellaneous
| Option SIL2 version3 | according to IEC 61508 / IEC 61511 |
|
Current consumption
|
signal output current: max. 25 mA |
| signal output voltage: max. 7 mA | |
| Weight | approx. 200 g |
| Installation position | any4 |
| Operational life | 100 million load cycles |
| CE-conformity | EMC Directive: 2014/30/EU |
| ATEX Directive | 2014/34/EU |
3only for 4…20 mA / 2-wire, not in combination with accuracy 0.1 %
4Pressure transmitters are calibrated in a vertical position with the pressure connection down. If this position is changed on installation there can be slight
deviations in the zero point for pressure ranges pN ≤ 1 bar.
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