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 the model DPGS40TA are the shipbuilding industry, process heating technology, the heating, ventilation and air-conditioning industries, the water/wastewater industry, and machine building and plant
construction.
Wherever a differential pressure has to be indicated on-site and, at the same time, circuits need to be switched safely dependent on a defined differential pressure, the DELTA-comb finds its use.
The differential pressure remains readable on the mechanical indication, even if the voltage supply is lost.
∙ 10/2025
Special features
- Differential pressure gauge with integrated working pressure indication and microswitch
- Shatterproof window and robust aluminium or stainless steel measuring chamber for increased requirements
- TÜV-certified functional safety through SIL certificate
- Flow switch with safety function in accordance with VdTÜV type test leaflet “Flow 100”
- QR code on dial links to instrument-specific information
| Model | DPGS40TA |
| Product family | DELTA-comb |
| Subcategory | Differential pressure gauge with microswitches |
| Pressure ranges | 0…250 mbar · 0…15 psi · 0…25 kPa · 0…0.025 MPa · 0…0.25 bar · 0…0.25 kg/cm2 · 0…400 mbar · 0…25 psi · 0…40 kPa · 0…0.04 MPa · 0…0.4 bar · 0…0.4 kg/cm2 · 0…600 mbar · 0…40 psi · 0…60 kPa · 0…0.06 MPa · 0…0.6 bar · 0…0.6 kg/cm2 · 0…1000 mbar · 0…60 psi · 0…100 kPa · 0…0.1 MPa · 0…1 bar · 0…1 kg/cm2 · 0…160 kPa · 0…0.16 MPa · 0…1.6 bar · 0…1.6 kg/cm2 · 0…250 kPa · 0…0.25 MPa · 0…2.5 bar · 0…2.5 kg/cm2 · 0…400 kPa · 0…0.4 MPa · 0…4 bar · 0…4 kg/cm2 · 0…600 kPa · 0…0.6 MPa · 0…6 bar · 0…6 kg/cm2 · 0…1000 kPa · 0…1 MPa · 0…10 bar · 0…10 kg/cm2 |
| Accuracy class | 1.6 |
| Accuracy standard | EN 837-1 |
| Safety integrity level (SIL) | SIL 2 (per IEC 61508), SIL 3-capable |
| Process connection | 2 x bite-type fitting for pipe ∅ 6 mm2 x bite-type fitting for pipe ∅ 8 mm2 x bite-type fitting for pipe ∅ 10 mm2 x G ¼ female thread, centre distance 26 mm2 x G ¼ B male thread, centre distance 26 mm2 x G ¼, female thread, centre distance 26 mm2 x G ¼ B, male thread, centre distance 26 mmG 1/4 female2 x G 1/4 female, centre distance 26 mm |
| Process temperature | −10…+90 °C |
| Output signal | Microswitch, single contact · Microswitch, double contact · Microswitch · Microswitch, single contact (model 850.3) · Microswitch, double contact (model 850.3.3) |
| 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, EN AC-AI Si9Cu3(Fe), black painted, Aluminium, EN AC-Al Si9Cu3(Fe), black painted |
| Wetted parts material | Stainless steel 1.4571, Copper alloy, Aluminium, Steel, Stainless steel, Aluminium, Al Si9Cu3(Fe), black painted |
| Sealing material | FPM/FKM, NBR |
| Ambient temperature | −10…+70 °C |
| IP rating | IP65 |
| Weight | 2 kg |
| Certifications | CERoHSEACDNVCRNREACH |
| Explosion protection | IECEx Ex ia IIC T4/T5/T6 GbATEX II 2G Ex ia IIC T4/T5/T6 GbATEX II 2D Ex ia IIIB T135°C DbIECEx Ex ia IIIB T135°C DbII 2G Ex ia IIC T4/T5/T6 Gb II 2D Ex ia IIIB T135°C DbEx ia IIIB T135°C DbEx UkrainePAC KazakhstanATEX: II 2G Ex ia IIC T4/T5/T6 Gb, II 2D Ex ia IIIB T135℃ DbIECEx: Ex ia IIC T4/T5/T6 Gb, Ex ia IIIB T135℃ Db |
| Dial size | 100 mm |
| Datasheet languages | EN, DE |
| 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 indication | Ø100 mm[4"] |
| Working pressure indication | ■ Without ■ Ø22 mm[0.9"] |
| 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 | Indication case, aluminium, EN AC-AI Si9Cu3(Fe), black painted |
| →For 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 |
| bar | |
|---|---|
| 0 ... 10 | 0 ... 16 |
| 0 ... 25 | - |
View all (12)
| kPa | MPa |
|---|---|
| 0 ... 25 | 0 ... 0.025 |
| 0 ... 40 | 0 ... 0.04 |
| 0 ... 60 | 0 ... 0.06 |
| 0 ... 100 | 0 ... 0.1 |
| 0 ... 160 | 0 ... 0.16 |
| 0 ... 250 | 0 ... 0.25 |
| 0 ... 400 | 0 ... 0.4 |
| 0 ... 600 | 0 ... 0.6 |
| 0 ... 1,000 | 0 ... 1 |
| Medium temperature range | -10 ...+90 °C [14 ... 194 °F] |
|---|---|
| Ambient temperature range 1) | |
| Non-Ex equipment | -10 ...+70 °C [14 ... 150 °F] |
| Ex equipment | -10 ...+60 °C [14 ... 140 °F] |
| Storage temperature range | -40 ...+70 °C [-40 ...+150 °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 | Region |
|---|---|---|
| EU declaration of conformity | European Union |
| Logo | Description | Region | |
|---|---|---|---|
| EU declaration of conformity | European Union | ||
| ATEX directive Hazardous areas | |||
| Gas Dust | II 2G Ex ia IIC T4/T5/T6 Gb II 2D Ex ia IIIB T135°C Db | ||
| IECEx Hazardous areas Ex ia IIC T4/T5/T6 Gb | International | ||
| Gas Dust | Ex ia IIIB T135°C Db | ||
| EAC ■ EMCDirective ■ LowVoltage Directive ■ Hazardous areas | Eurasian Economic Community | ||
| Ex Ukraine Hazardous areas | Ukraine | ||
| PAC Kazakhstan Metrology, measurement technology | Kazakhstan | ||
| - | MChS Permission for commissioning | Kazakhstan | |
| DNV Ships, shipbuilding (e.g. offshore) | International | ||
| - | CRN Safety (e.g. electr. safety, overpressure, ...) | Canada |
| Logo | Description |
|---|---|
| SIL2 | PLd IEC 61508 / IEC 61511 | SIL 3-capable Functional safety per IEC 61508 Individually installed, the requirements of SIL 2 are fulfilled. For details, see certificate |
| Requirements for flow monitors or flow switches and flow limiters in accordance withVdTÜV type test leaflet 'Flow 100' (BP STRO 100-RL) |
| 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 calibration interval | 1 year (dependent on conditions of use) |
| Terminals | |
|---|---|
| Switch A | '1' / '4' / '2' |
| Switch B | '3' / '6' / '5' |
| Max. input voltage U i | DC 30V |
| Max. input current l i | 100mA |
| Max. input power P i (gas) | 1W |
| Max. input 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 | Seals → See data sheet AC 09.08 | - | |
| 910.15 | Syphons → See data sheet AC 09.06 | - | |
| IV3 | 4-valve manifold, stainless steel → For dimensions, see page 9 | 2043559 | |
| 4-valve manifold, brass → For dimensions, see page 9 | 2043567 | ||
| - | Bite-type fitting, steel, pipe∅6mm | 2122359 | |
| Bite-type fitting, steel, pipe∅8mm | 2128217 | ||
| Bite-type fitting, steel, pipe∅10mm | 1351982 | ||
| Bite-type fitting, copper alloy, pipe∅6mm | 1550705 | ||
| Bite-type fitting, copper alloy, pipe∅8mm | 1550713 | ||
| Bite-type fitting, copper alloy, pipe∅10mm | 1561847 | ||
| Bite-type fitting, stainless steel, pipe∅6mm | 1581481 | ||
| Bite-type fitting, stainless steel, pipe∅8mm | 14296672 | ||
| Bite-type fitting, stainless steel, pipe∅10mm | 1518488 |
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