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 Applications

Monitoring and control of filters, compressors and pumps in:

■ Marine boilers, pressure vessels, bilge-water collection

■ Drinking and cooling-water treatment plants

■ Pressure-boosting stations

■ Heating technology

■ Fire-extinguishing systems

Special features

■ Robust aluminium case with shatterproof window

■ Low measuring range from 0 ... 250 mbar

■ Optionally with Ex approval

■ High ingress protection, IP65, for outdoor use and proces-ses with high condensation

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 overpressure and static pressure.

Typical markets for these products are the shipbuilding indus-

try, process heating technology, the heating, ventilation and

air-conditioning industries, the water/wastewater industry,

and machine building and plant construction. For these, the

main function of the measuring instruments is the monitoring

of filters, compressors and pumps.

Wherever a differential pressure has to be indicated locally

and, at the same time, circuits need to be switched safely

dependent on a defined differential pressure, the DELTA-

comb finds its use. As the pressure passes above or below

a defined set point, the switching operation is triggered. The

switch point is accessible from the front and can be set in

the range of 10 ... 100 % of the full scale value. An assistant

scale enables an accurate setting of the switch point and

indicates the current set point.

Often in these applications, alongside the indication of the

differential pressure, the current working pressure is also

relevant. For this reason, a working pressure indication is

integrated within the DELTA-comb differential pressure

switch as standard. The two local, easily readable, mecha-

nical displays need no power supply and enable the simul-

taneous reading of the working and the differential pressure.

Furthermore, this saves on an additional measuring and

sealing point, reducing additional expense for piping and

mounting.

The robust aluminium case and shatterproof window

enable a long service life of the product, even under harsh

ambient conditions. As a result of the low measuring range of

0 … 250 mbar, the instrument can also be used for applica-

tions with low differential pressures.

The new and functional design completes the appearance of

the measuring instrument.