Transmitter PD61 with metallic isolating diaphragms - West Control Solutions - #1

The transmitter is suitable for differen­tial pressure as for flow measure­ments with gases, vapours and liquids.

Nominal pressures for the various measuring cell types are PN160 and PN420.

Standard output is a 4...20 mA signal proportional to the applied differential pressure or flow or level.

The microprocessor-controlled electro­nics works on the two-wire principle. Transmitter PD61 energization is by means of a DC voltage.

No matter what the left/right arrange­ment of the „plus" and „minus" pres­sure lines is on site, the position can be matched simply by rotating the housing up to 360°.

The optional 4-line local display (LCD) Fig. 3 Display element

reads measuring values, dialog text as error indications and supports the user in every step of set up.

The operational keys are accessable either from outside or will be found on the electronics.

Microprocessor-controlled electronics provide high-precision signal proces­sing and monitoring, from the sensor to the signal output. Measuring cell monitoring offers outstanding safety for industrial processes.

Transmitter PD61 comprises the mea­suring cell, two process flanges with seals and the electronic housing. Seven measuring cell versions provide spans from 1 to 40,000 mbar¹¹. Process flanges wetted by the pro­cess media, are available in a variety of materials.

Process seals can be made of FKM (e.g.Viton®), PTFE, NBR or Copper.

The pressure medium enters the mea­suring cell via two V4-18NPT couplings in the process flanges. Centre to cen­tre distance of the couplings is 54 mm, which enables direct moun­ting of a valve manifold or integral orifice assembly.

The external operating keys use the Hall-sensor principle thus leaking holes into the housing are avoided and the electronics remain protected from en­vironmental contamination

Turn-down 100:1 respectively smaller ranges on request

Viton®: registered trade mark of DuPont Performance Elastomers