Differential pressure gauge with micro switches
Description
The differential pressure gauges of the DELTA-line product family are primarily used for the monitoring and control of low differential pressures where there are high requirements in terms of one-sided overload and static pressure.
Typical markets for these products are the process heating technology, the heating, ventilation and air-conditioning industries, the water/wastewater industry, and machine building and plant construction. For these, the main function of the measuring instruments is the monitoring and control of filters, compressors and pumps.
Wherever circuits need to be switched safely dependent on a defined differential pressure, the DELTA-switch finds its use. As the pressure passes above or below a defined set point, the switching operation is triggered.
∙ 05/2021
Special features
- With one or two adjustable microswitches
- Shatterproof window and robust aluminium or stainless steel measuring chamber for increased requirements
- Optionally with approvals for hazardous areas
- High ingress protection, IP65, for outdoor use and processes with high condensation
- Low measuring range from 0 ... 250 mbar
| Model | DPGS40 |
| Product family | DELTA-comb |
| Subcategory | Differential pressure gauge with microswitches |
| Pressure ranges | 0…250 mbar · 0…400 mbar · 0…600 mbar · 0…1000 mbar · 0…0.25 bar · 0…0.4 bar · 0…0.6 bar · 0…1 bar · 0…1.6 bar · 0…2.5 bar · 0…4 bar · 0…6 bar · 0…10 bar · -12.5…12.5 kPa · 0…25 kPa · 0…40 kPa · 0…60 kPa · 0…100 kPa · 0…160 kPa · 0…250 kPa · 0…400 kPa · 0…600 kPa · 0…1000 kPa · 0…0.025 MPa · 0…0.04 MPa · 0…0.06 MPa · 0…0.1 MPa · 0…0.16 MPa · 0…0.25 MPa · 0…0.4 MPa · 0…0.6 MPa · 0…1 MPa |
| Accuracy class | 2.5 |
| Accuracy standard | EN 837-1 |
| Process connection | G ¼ female threadG ¼ B male threadbite-type fitting for pipe ∅ 6 mmbite-type fitting for pipe ∅ 8 mmbite-type fitting for pipe ∅ 10 mmG 1/4, female threadG 1/4 B, male threadG 1/4 female |
| Process temperature | −10…+90 °C |
| Output signal | Microswitch |
| Electrical connection | cable gland M20 x 1.5 with 1 m cable, flying leads |
| Switching function | Change-over contact |
| Switching contacts | 1 |
| Case material | aluminium, stainless steel, Aluminium, EN AC-AI Si9Cu3(Fe), Stainless steel 1.4571, Aluminium, EN AC-AI Si9Cu3(Fe), black painted |
| Wetted parts material | Stainless steel 1.4571, Copper alloy, Steel, Aluminium, EN AC–Al Si9Cu3(Fe), Aluminium, Al Si9Cu3(Fe), Stainless steel, Aluminium, EN AC-AI Si9Cu3(Fe), black painted |
| Sealing material | FPM/FKM, NBR |
| Ambient temperature | −10…+70 °C |
| IP rating | IP65 |
| Weight | 1.4 kg |
| Certifications | RoHSCRNCEATEXIECExEACGOSTMTSCHSBelGIM |
| Explosion protection | EAC Hazardous areasII 2G Ex ia IIC T4/T5/T6 GbII 2D Ex ia IIIB T135°C DbEx ia IIC T4/T5/T6 GbEx ia IIIB T135°C DbIECEx Hazardous areas Gas Ex ia IIC T4/T5/T6 Gb Dust Ex ia IIIB T135°C DbEx Ukraine Hazardous areasMTSCHS Permission for commissioningATEX directive Hazardous areas Gas II 2G Ex ia IIC T4/T5/T6 Gb Dust II 2D Ex ia IIIB T135℃ DbIECEx Hazardous areas Gas Ex ia IIC T4/T5/T6 Gb Dust Ex ia IIIB T135℃ Db |
| Dial size | 100 mm |
| Datasheet languages | EN |
| Measuring chamber material | Working pressure indication | Ex approval | ||
|---|---|---|---|---|
| Aluminium | Stainless steel | Without | Ø 22mm | |
| x | x | Option | ||
| x | x | Option | ||
| x | x | Option |
| Nominal size | |
|---|---|
| Differential pressure display | Ø100mm |
| Working pressure indication | ■ Without ■ Ø22mm |
| Window | |
| Non-Ex version | Plastic, with plug screw for switch point setting |
| Ex version | Plastic (switch point setting can only be carried out at the factory) |
| Case version | Display case, aluminium, EN AC-AI Si9Cu3(Fe); black painted |
| →Measuring chamber, see table 'Measuring element' |
| Measuring range | |
|---|---|
| mbar | psi |
| 0 ... 250 | 0 ... 15 |
| 0 ... 400 | 0 ... 25 |
| 0 ... 600 | 0 ... 40 |
| 0 ... 1,000 | 0 ... 60 |
| bar | kg/cm 2 |
| 0 ... 0.25 | 0 ... 0.25 |
| 0 ... 0.4 | 0 ... 0.4 |
| 0 ... 0.6 | 0 ... 0.6 |
| 0 ... 1 | 0 ... 1 |
| 0 ... 1.6 | 0 ... 1.6 |
| 0 ... 2.5 | 0 ... 2.5 |
| 0 ... 4 | 0 ... 4 |
| 0 ... 6 | 0 ... 6 |
| 0 ... 10 | 0 ... 10 |
| kPa | MPa |
|---|---|
| -12.5 ... +12.5 | 0 ... 0.025 |
| 0 ... 25 | 0 ... 0.04 |
| 0 ... 40 | 0 ... 0.06 |
| 0 ... 60 | 0 ... 0.1 |
| 0 ... 100 | 0 ... 0.16 |
| 0 ... 160 | 0 ... 0.25 |
| 0 ... 250 | 0 ... 0.4 |
| 0 ... 400 | 0 ... 0.6 |
| 0 ... 600 | 0 ... 1 |
| 0 ... 1,000 |
View all (10)
| Medium temperature | -10 ...+90 °C [14 ... 194 °F] |
|---|---|
| Ambient temperature | |
| Non-Ex version | -10 ...+70 °C [14 ... 150 °F] |
| Ex version | -10 ...+60 °C [14 ... 140 °F] |
| Storage temperature | -20 ...+60 °C [-4 ...+140 °F] |
| Pressure limitation | |
| Steady | End value of measuring range |
| Fluctuating | 0.9 x end value of measuring range |
| Overload safety | Max. 25 bar On one, both and alternatingly on the ⊕and ⊖sides |
| Ingress protection per IEC/EN 60529 | IP65 |
| Logo | Description | Country |
|---|---|---|
| EU declaration of conformity | European Union | |
| Pressure equipment directive | ||
| - | RoHS directive CRN | Canada |
| Logo | Description | Country |
|---|---|---|
| EU declaration of conformity | European Union | |
| IECEx Hazardous areas Gas Ex ia IIC T4/T5/T6 Gb Dust Ex ia IIIB T135°C Db | International | |
| EAC Hazardous areas | Eurasian Economic Community | |
| UkrSEPRO Metrology, measurement technology | Ukraine | |
| Ex Ukraine Hazardous areas | Ukraine | |
| Uzstandard Metrology, measurement technology | Uzbekistan | |
| GOST Metrology, measurement technology | Russia | |
| KazInMetr Metrology, measurement technology | Kazakhstan | |
| - | MTSCHS Permission for commissioning | Kazakhstan |
| BelGIM Metrology, measurement technology | Belarus |
| Certificates | ■ 2.2 test report per EN 10204 (e.g. state-of-the-art manufacturing, indication accuracy) ■ 3.1 inspection certificate per EN 10204 (e.g. indication accuracy) |
|---|---|
| Recommended recalibration interval | 1 year (dependent on conditions of use) |
| Terminals | |
|---|---|
| Switch A | '1' / '4' / '2' |
| Switch B | '3' / '6' / '5' |
| Maximum voltage U i | DC 30V |
| Maximum current l i | 100mA |
| Maximum power P i (gas) | 1W |
| Maximum power Pi (dust) | |
| Ta ≤ +40 °C | ≤ 750mW |
| Ta ≤ +60 °C | ≤ 650mW |
| Effective internal capacitance C i | Negligible |
| Effective internal inductance L i | Negligible |
| Model | Description | Order number | |
|---|---|---|---|
| - | Panel mounting flange, aluminium | 14074004 | |
| Panel mounting flange, stainless steel | 14075088 | ||
| 910.17 | Sealings →see data sheet AC 09.08 | - | |
| 910.15 | Syphons →see data sheet AC 09.06 | - | |
| IV3x | 4-way valve block, stainless steel →For dimensions see page 10 | 2043559 | |
| 4-way valve block, brass →For dimensions see page 10 | 2043567 | ||
| - | Bite-type fittings for pipe diameters 6, 8 and10mm | On request |
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