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Description
Differential pressure switch / differential pressure controller
PREMASREG® DS
The mechanical PREMASREG® DS 1 differential pressure switch/monitor with metal bracket serves to monitor above-atmospheric, differential and below-atmospheric pressure of clean air as well as gaseous, non-aggressive media in air ducts, air intake or exhaust devices. It is used as a flow monitor, differential pressure governor, pressure controller for flow monitoring at electric heating registers or for monitoring V-belts and filters. Further applications are found in air pressure deficiency protection, fan or air damper monitoring and limit value control. The switchpoint can be adjusted by means of an internal precision scale.
These instruments are factory-calibrated. The DS 1 differential pressure sensor device is supplied including our ASD-06 connection set (2 m connection hose, two pressure connection nipples, screws).
Technical details
Mounting
with mounting angle
Switching capacity (Contact load)
5 (0.8) A, 250 V AC
4 (0.7) A, 30 V DC
4 (0.7) A, 30 V DC
Max. pressure
5000 Pa (50 mbar)
Pressure range
high adjustment accuracy due to individual laser-etched scale
for each switch
for each switch
Pressure range (adjustable)
20… 300 Pa (0.2...3.0 mbar)
Switching capacity (Contact load)
5 (0.8) A, 250 V AC
4 (0.7) A, 30 V DC
4 (0.7) A, 30 V DC
Contact
single-pole potential-free changeover contact,
multi-layer contact, gold-plated (DDC compatible)
multi-layer contact, gold-plated (DDC compatible)
Media temperature
–30 ...+85 °C
Operating Difference approx.
0.1 mbar ± 15 %
Pressure connection
with connection nozzles for pressure hose Ø 6 mm
Measuring range pressure
20...300Pa
Housing
base: material PC (10 % GF),
colour light grey (similar to RAL 7035),
snap-on lid: material PC, transparent,
cable gland PG 11 with strain relief
colour light grey (similar to RAL 7035),
snap-on lid: material PC, transparent,
cable gland PG 11 with strain relief
Membrane
silicone, LSR (Liquid Silicon Rubber,
tempered at +200 °C, non-outgassing, LABS-free,
no emission of varnish-adhesion inhibiting substances),
long-term stability of switching points
due to trapezoidal bead membranes
tempered at +200 °C, non-outgassing, LABS-free,
no emission of varnish-adhesion inhibiting substances),
long-term stability of switching points
due to trapezoidal bead membranes
Humidity
< 90 % RH, non-precipitating air
Mounting
with metal angle DS 1 - MW- Z
(included in the scope of delivery)
(for other optional shapes)
Recommended mounting position:
vertical (pressure connections downward) – factory setting;
horizontal (cap up/ down)
(included in the scope of delivery)
(for other optional shapes)
Recommended mounting position:
vertical (pressure connections downward) – factory setting;
horizontal (cap up/ down)
Protection class
II (according to EN 60 730)
Protection type
IP 54 with top cover (according to EN 60529)
Standards
CE conformity,
low-voltage directive 2014/ 35/ EU
low-voltage directive 2014/ 35/ EU
Tests
DVGW (according to DIN 1854),
VDE 0630, EN 61058,
directive on gas devices 2009/ 142/ EU,
CE 0085 A P 0918
VDE 0630, EN 61058,
directive on gas devices 2009/ 142/ EU,
CE 0085 A P 0918
Function
Contact 1 - 2 breaks when pressure/ differential pressure
rises to the preset value.
Contact 1 - 3 closes when pressure/ differential pressure
drops and can be used as signal contact.
rises to the preset value.
Contact 1 - 3 closes when pressure/ differential pressure
drops and can be used as signal contact.
Tests
DVGW (nach DIN 1854)
VDE 0630, EN 61058
Gasgeräterichtlinie 90 / 396 / EWG,
CE 0085 A P 0918
VDE 0630, EN 61058
Gasgeräterichtlinie 90 / 396 / EWG,
CE 0085 A P 0918