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Explosion-proof
IO-link
GSM - Wifi
NFC sensors
The mechanical differential pressure switch/differential pressure monitor PREMASREG~ DS2 with plastic mounting base is suitable for monitoring over-, under- and differential pressures of air, gaseous non-aggressive, non-flammable media in air ducts, working and venting devices. For flow monitoring at electric heating elements, as well as for string breakage detection, filter monitoring and air pressure error protection, for monitoring fans, air dampers or as a limit value controller. Setting the switching points is done with the inside setting scale. The switches are factory set. The differential pressure switch PREMASREG~ DS2 includes connection set ASD-06 (2 m connection hose, two connection nipples, screws).
| Max. pressure | 5000 Pa (50 mbar) |
|---|---|
| Pressure range | high adjustment accuracy due to individual laser-etched scale 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 |
| Contact | single-pole potential-free changeover contact, multi-layer contact, gold-plated (DDC compatible) |
| Media temperature | -30 ...+85 °C |
| Operating Difference approx. | 0.1 mbar ± 15 % |
| Pressure connection | P1 (+) for higher pressure P2 (-) for lower pressure Ø 6.2 mm (nipples) |
| Electrical connection | 0.14 - 1.5 mm2, via terminal screws on circuit board |
| Housing | base: material PC (10 % GF), color light gray (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 |
| Humidity | < 90 % r. H., non-precipitating air |
| Mounting | 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) |
| Standards | CE conformity, 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 |
| 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. |
