Features & Benefits
- Product applications
Oil & Gas, Power Generation and Water Treatment - Electric contact for gauges are suitable for:
Corrosive atmospheres. Resistant to chemical attack.
Home » Products » Product class » Accessories » Single or double contact for pressure and temperature gauges
Technical datasheet

The D31 SMART Differential Pressure Transmitters are suitable for measuring differential pressure of gases, vapours and liquids. The active sensing element is a piezoresistive silicon sensor separated from the medium by a diaphragm and by a specially selected type of manometric liquid. The special design of the active sensing element ensures that it is able to withstand pressure surges and overloads of up to 250/320/413 bar. The casing is made of cast aluminium alloy or 316 stainless steel with a IP66/IP67 rating. The design of the casing enables the use of a local display, rotation of the display by 90°, rotation of the casing by 0–355° relative to the sensor, and a choice of cable direction.
The D31 Differential Pressure Transmitter is suitable for measuring pressures from -100mbar to 70bar with maximum working pressures up to 413 bar.
Key Features
• Die cast weatherproof enclosure to IP66 (NEMA 4).
• Stainless steel mechanism.
• Internal tamperproof set point adjustment.
• Calibrated scale.
• Set point adjustment from -2.5mbar (-1 in H2O) up to 1.6 bar (20psi) dependent on model.
• ECAS Certified (Emirates Conformity Assessment Scheme)

The model D35 Differential Pressure Transmitter comes fitted with two diaphragm seals. It is suitable for measuring pressures from -100mbar to 70bar with maximum working pressures up to 420bar. The D Series SMART Differential Pressure Transmitter is suitable for a wide range of applications for measuring differential pressure, level and flow.
Key Features

The Compact Series, (C S), switch has been designed to meet the specific requirements of panel applications, whether they be of the Wellhead Control, Hydraulic Power Unit or Chemical Injection Skid type.
Their compact, rugged, all stainless steel construction makes them especially useful in the cramped and harsh environmental conditions that these applications demand. Supplied as standard with hermetically sealed switch contacts and with field adjustable set-points up to 700 bar, the Compact Series of Switches also come with either Intrinsically Safe or Flameproof approvals for use in Zone 0 or Zone 1 hazardous areas respectively.
The model CS2 and CS4 Presure Switches are suitable for setpoints between 0.25bar and 700bar with maximum working pressures up to 1000bar. (EAC certification is available on request).

This robust pressure switch is suitable for a range of industrial applications, such as resistance to chemical attack or for use in corrosive atmospheres. The S30 Differential Pressure Switch is suitable for setpoints between -12.5mbar and 10bar with maximum working pressures up to 110 bar. This switch comes in models S31 and S34 (EAC certification is available on request).
Key Features
• Weatherproof and Flameproof models ATEX and NEC 500
• NACE MR-01-75 compatibility
• Ranges available up to 700 bar (10,000 psi) – Maximum working pressure up to 1000 bar (15,000 psi)
• Field set point adjustment against a reference scale
• Hermetically sealed microswitch options
• Optional gold alloy contacts
• Terminal block for easy field wiring
• Safety vented design as standard
• PED 2014/68/EU CAT IV option
