DPGS40TA differential pressure gauge with WIKA micro switches

Description

The DPGS40TA differential pressure gauge with WIKA micro switches is used for monitoring differential pressures, the instrument allows switching and display.

The DPGS40TA differential pressure gauges from the DELTA product family are mainly used for monitoring and controlling low differential pressures where there are high requirements for unilateral overpressure and static pressure.
Typical markets for these products are shipbuilding, process heating technology, the heating, ventilation and air-conditioning industry, the water and wastewater industry, and machine and plant construction. For these, the main task of the instrumentation is to control filters, compressors and pumps. These instruments are mainly used as flow meters in oil mills for heat transfer.

Wherever the differential pressure needs to be displayed locally and at the same time the electrical circuit safely switched depending on the differential pressure, the DELTA header is used.

When the pressure goes above or below the set value, a switch operation is triggered. The switching point is accessible from the front and can be set within a range of 10 … 100% of the total scale value using the auxiliary scale. Thanks to the mechanical indication, the differential pressure can be safely read even if the voltage is lost.

The robust aluminium housing and watertight window ensure a long product life, even in harsh environmental conditions. Due to the low measuring range of 0 … 250 mbar, the instrument can also be used for applications with low differential pressures.

The DELTA component tester is characterised by its numerous approvals and certifications. These ensure suitability for use in any application.

Features of the DPGS40TA

• Nominal size:
  • Differential pressure display: Ø 100 mm
  • Working pressure display: Ø 22 mm
• Accuracy:
  • Differential pressure display: ≤ 2.5% of range (option ≤ 1.6%)
  • Working pressure display: ≤ 4% of range
• Scale range (EN 837)
  • Differential pressure: 0 … 0.25 to 0 … 10 bar
  • Differential pressure SIL version: 0 … 0.25 to 0 … 6 bar
  • Differential pressure VdTÜV version: 0 … 0.25 to 0 … 2.5 bar
  • Working pressure: 0 … 25 bar
• Max. working pressure (stat.):
  • 25 bar
• Overpressure safety
  • On both sides max. 25 bar
• Permitted temperature
  • Ambient: -10 °C … +70 °C
  • Medium: -10 °C … +90 °C
  • Storage: -40 °C … +70 °C
• Ingress protection IP65 to IEC/EN 60529
• Media chamber (humidified)
  • Aluminium, EN AC – Al Si9Cu3 (Fe), black lacquered (option: stainless steel 1.4571)
• Process connections (wetted)
  • 2 x G 1/4 female, bottom bracket, inline, centre distance 26 mm
• Pressure elements (wetted)
  • Differential pressure: 1.4310 stainless steel compression springs and FPM/FKM separation diaphragm (option: NBR)
  • Working pressure: Bourdon tube in Cu-alloy
• Gearbox parts (wetted)
  • Stainless steel 1.4301, 1.4305, 1.4310, FPM/FKM (option: NBR)
• Gaskets (moistened)
  • FPM / FKM (option: NBR)
• Movement
  • Copper alloy
• Differential and operating pressure marking on the dial:
  • white dial, black letters
• Index
  • Differential and operating pressure display: blue indicator
• Zero setting for differential pressure indication:
  • With the rotary knob
• Aluminium housing, EN AC – Al Si9Cu3 (Fe), black lacquered
• Plastic window, with screw for zero adjustment and switching point
• Weight approx. 1.4 kg

For more features and additional options, we recommend viewing the attached .pdf documents under the Documentation section.

 

Areas of use, applications:

Monitoring and control of filters, compressors and pumps in:

• heat transfer oil mills
• Drinking and cooling water treatment plants
• marine boilers, pressure vessels, drainage water collection
• Pressure boosting stations, heating technology, fire extinguishing systems

 

ELPRO designation: MAN-DPGS40TA