Multi-funtional duct sensor
For humidity, temperature, pressure, differential pressure and volume flow for monitoring and controlling heating, ventilation and air-conditioning systemsPREMASGARD® 814x-Modbus
Für jede Anwendung die richtige Lösung [Translate]
The mechanical differential pressure switch/ differential pressure monitor PREMASREG® DS-2 with 4-hole plastic base ring, is used for monitoring above-atmospheric, differential and below-atmospheric pressure of clean air, gaseous, non-aggressive media in air ducts, air intake or exhaust devices. As a flow monitor, differential pressure governor, pressure controller for flow monitoring at electric heating registers as well as for monitoring V-belts and filters, as air pressure deficiency protection for monitoring ventilators, dampers, or as a limit value controller. Switchpoint adjustment is done internally using the internal precision scale. These instruments are factory-calibrated.
The DS-2 differential pressure sensor is supplied including the ASD-06 connection set (2 m connection hose, two pressure connection nipples, screws).
|Max. pressure||5000 Pa (50 mbar)|
high adjustment accuracy due to individual laser-etched scale
for each switch
|Pressure range (adjustable)||50… 500 Pa (0.5...5.0 mbar)|
|Switching capacity (Contact load)||
5 (0.8) A, 250 V AC
4 (0.7) A, 30 V DC
single-pole potential-free changeover contact,
multi-layer contact, gold-plated (DDC compatible)
|Media temperature||–30 ...+85 °C|
|Operating Difference approx.||0.2 mbar ± 15 %|
P1 (+) for higher pressure
P2 (–) for lower pressure
Ø 6.2 mm (nipples)
0.14 - 1.5 mm2,
via terminal screws on circuit board
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
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
|Humidity||< 90 % r. H., non-precipitating air|
by 4-hole base ring, plastic
(included in the scope of delivery),
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)|
low-voltage directive 2014/ 35/ EU
DVGW (according to DIN 1854),
VDE 0630, EN 61058,
directive on gas devices 2009/ 142/ EU,
CE 0085 A P 0918
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.
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