DS Series Combined pressure transmitter, pressure switch and pressure display

The DS range of pressure transmitter, switch and display combination is a three-in-one multi-function pressure sensor with signal conditioning which gives a current or voltage output signal, 1, 2 or 4 x independent PNP transistor switch outputs and a freely scalable and programmable led rotatable display!  The potential for this device is a complete control system in a single device, cutting installation and equipment costs and configuration to your exact control requirements.

With pressure ranges spanning from 10mbar on the DS 210 through to 600 bar on the DS 200 within the DS series we should be able to cover all requirements on air pressure measurement and liquid pressure sensing alike.  The DS range will cover your requirements for an air pressure transmitter, oil pressure transmitter, hydraulic pressure transmitter and also if it’s just a simple pressure switch that you require then this device will solve that requirement also.

There are several options available within the range including:

1. ATEX certification
2. 1, 2 or 4 switch points
3. analogue output in either 4-20mA, voltage or none!
4. electrical connection
5. process connection type

There’s also the option for a 3-wire 4-20mA configuration which allows for re-calibration of the 4-20mA output signal, not only is the display scalable, the output is also!

The digital LED display on the device is freely rotatable through 2-axis so you will always be able to see the display clearly.  If installed on a vertical pipe horizontally then simply rotate the display through the body until it is face on and then rotate it on the display part so the readings are horizontal.  The brightness is also adjustable depending on the environment you are installing to.

The DS 210 – Air pressure sensor switch

Suitable for air pressure and non aggressive gases, the start of measurement is from as low as 10mbar through to 1000mbar Gauge reference only.  Vacuum pressure ranges also available.

The DS 201 – Ceramic pressure sensor switch and display

Suitable for Gases and Liquids from pressure ranges from 600mbar through to 600 bar Gauge or Absolute reference making this suitable for gauge pressure sensor, absolute pressure sensor requirements and absolute pressure switch applications also.

The DS 200 – Stainless steel pressure sensor switch and display

Suitable for Gases and Liquids compatible with the stainless steel media isolated diaphragm.  Pressure ranges from 100mbar through to 600 bar Gauge or Absolute reference, being based on a silicon pressure sensor with stainless steel diaphragm the over pressure capability is inherently higher and also the resolution is higher than the DS 201 with the ceramic pressure sensor.

The DS 230 – OEM Digital pressure switch with display

Suitable for Gases and Liquids compatible with the ceramic diaphragm and FKM internal O-ring seal.  Pressure ranges from 2 bar through to 400 bar Gauge reference only.  This is a lower cost version with less accuracy and no transmission of output, just purely a pressure switch and pressure display device targeted at OEM applications.

The DS series pressure transmitters, switches and display products are very diverse in their capabilities as a control device, please contact sales for a discussion on to how best implement the pressure product into your application.

Product Datasheet: DS 210, DS 201, DS 200, DS230

Product Page: Combined Pressure Transmitter, Pressure Switch and Display products page

If you have any applications you wish to discuss or any questions questions regarding this product then please contact sales here sales@impress-sensors.co.uk

DS Series combined pressure transmitter, pressure switch & display! is a post from: Impress Sensors

901 ATEX Pressure Switches

A range of compact, low cost pressure switches are now available that are ATEX-certified for use in Zone 0, Zone 1 and Zone 2 gaseous atmospheres.

The new 901 range of ATEX-certified pressure switches, from Aldermaston-based sensor specialist Impress Sensors, are ideal for monitoring overpressure, vacuum or differential pressure of both liquid and gaseous substances, including aggressive media, in hazardous environments. The switches can be used to monitor fluid levels and filters, as well as excessive or inadequate pressure and pressure differentials in closed systems.

The explosion-proof pressure switches are ideal for a range of explosive atmosphere environments, including nuclear, oil and gas, chemicals, pharmaceuticals, sewerage and food processing.

The switches are available in a factory-set version, in which the pressure setting and switching differential are set by the manufacturer, or an adjustable version, the 901 Prescal, where the customer uses a scaled adjustment knob to alter the trip and reset pressure, without having to use a screwdriver.

A wide range of switch options are available, including pressure connections in various materials, shapes and sizes. Customers can also select from a diverse range of materials for seals and diaphragms. All switches are intrinsically safe and have been categorised as Temperature Class T4 and Explosion Group IIB or IIC.

Sam Drury, Sales Director at Impress Sensors & Systems comments: “Some of our customers need to monitor pressures in potentially explosive atmospheres. In the chemicals sector, for example, air mixtures and ignitable gases are commonplace and can cause explosions if a source of ignition is present. Therefore, industrial instrumentation devices such as pressure switches need to be protected accordingly. We are delighted to be able to offer these ATEX-certified sensors to the UK.”

The factory-set 901 switch can be set according to the customer’s specification at a fixed value between 5mbar and 12bar in the positive pressure range and between –5mbar and –900mbar in the negative pressure range. With the 901 Prescal switch, the switching pressure can be controlled using an adjustment knob.

For pressurized connection, there is a choice of plastic or metal hose connectors or threaded couplings.

Product Datasheet: 901 Prescal ATEX Pressure Switch, 901 fixed range ATEX Pressure Switch

Product Page:  Pressure Switches product page

If you have any applications you wish to discuss or any questions questions regarding this product then please contact sales here sales@impress-sensors.co.uk

ATEX Pressure switch, fixed pressure range or adjustable! is a post from: Impress Sensors