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
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The electronic PREMASREG® 711x pressure sensors and switches are equipped with eight
switchable measuring ranges, one switching output, one continuous output, and a display for setting
the switchpoint and to display the ACTUAL pressure (eight devices in one, plus differential pressure
switch/ differential pressure monitor, continuous pressure sensor in a single device).
The pressure sensor with a housing made from impact-resistant plastic or stainless steel V4A, with cable fitting or bushing for M12 connector according to DIN EN 61076-2-101 and with metal pressure port nozzles (quick connect optional) is used to measure positive, negative or differential pressures in clean air, with limit value switching. The piezoresistive measuring element guarantees a high degree of reliability and accuracy.
Applications of these pressure sensors are in clean room, medical and filter technology, in ventilation and air conditioning ducts, in spray booths, in large-scale catering facilities, for filter monitoring and level measurement or for triggering frequency converters. Media measured with these pressure transducers are air (non-precipitating), or other gaseous, non-aggressive, non-combustible media.
The pressure sensor has a button for manual zero point calibration (automatic zero point calibration optional) and one offset potentiometer for setting the switching point and one for final value correction. The delivery includes the connection set ASD-06 (2 m connection hose, two pressure port nipples, screws).
|Voltage supply||24 V AC/ DC (± 20 %)|
|Power consumption||< 1.1 VA/ 24 V DC ; < 2.2 VA/ 24 V AC|
|Load resistance||RL > 5 kOhm|
0 -10 V
1 changeover contact (24 V), 1 A ohmic load
|Connection type||3-wire connection|
0... 1000 Pa/ – 1000 ... + 1000 Pa
0...2000 Pa/ – 2000 ... + 2000 Pa
0...3000 Pa/ – 3000 ... + 3000 Pa
0...5000 Pa/ – 5000 ... + 5000 Pa
|Media temperature||–20...+50 °C|
equipped as standard with metal connection nozzles
for pressure hose Ø 4/ 6 mm,
optionally with quick connect made from stainless steel
for PVC fabric pressure hose Ø 6 mm
|Type of pressure||differential pressure|
(5000 Pa): typically ± 25 Pa
compared to the calibrated reference device
|Zero point offset||< ± 0.7 % of final value|
|Above- ⁄ below-pressure||max. ± 100 hPa|
clean air and
non-aggressive, non-combustible gases
|Signal filtering||switchable 1 s/ 10 s|
|Setting increment Δp||1 % of pressure range (100 Pa => 1 Pa; 5000 Pa => 50 Pa)|
|Switching hysteresis||± 1 % of pressure range (100 Pa => ± 1 Pa; 5000 Pa => ± 50 Pa)|
|Electrical connection||0.14 - 1.5 mm², via plug-in screw terminal|
bushing for M12 connector
according to DIN EN 61076-2-101
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016),
housing cover for display is transparent !
|Housing dimensions||126 x 90 x 50 mm (Tyr 2)|
|Sum of Linearity+hysteresis||< ± 1 % of final value|
|Temperature drift values||± 0.1 %/ °C|
|Air humidity||< 95 % r. H., non-precipitating air|
|Protection class||III (according to EN 60 730)|
|Protection type||IP 65 (according to EN 60 529)|
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3
three-line display with illumination,
cutout approx. 70 x 40 mm (W x H),
for displaying ACTUAL pressure and/ or SETPOINT pressure
and for adjusting the automatic zero point calibration
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