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Description
Pressure and differential pressure measuring transducers
PREMASGARD® 711x-VA
The calibratable pressure transmitters of the PREMASGARD® 711x - VA series feature eight switchable measuring ranges (eight devices in one), a V4A stainless steel housing, optionally with/without display, with cable gland or M12 connector according to DIN EN 61076-2-101 and a stainless steel quick-connect pressure port (pipe fitting optional). The sensor devices serve to measure positive, negative or differential pressures in air. The piezoresistive measuring element is temperature-compensated and guarantees a high degree of reliability and accuracy.
Applications are found in cleanroom, medical and filter engineering, in ventilation and air conditioning ducts, in spray booths and large-scale catering facilities, in filter monitoring and level measuring or frequency converter triggering. Media measured with these pressure transducers are air (non-precipitating) or other gaseous, non-aggressive, non-combustible media.
Applications are found in cleanroom, medical and filter engineering, in ventilation and air conditioning ducts, in spray booths and large-scale catering facilities, in filter monitoring and level measuring or frequency converter triggering. Media measured with these pressure transducers are air (non-precipitating) or other gaseous, non-aggressive, non-combustible media.
The pressure sensor devices have a button for manual zero-point calibration (automatic zero-point calibration optional, standard for 25 Pa) and an offset potentiometer for final value correction. The sensor is factory-calibrated and can be fine-tuned to ambient conditions by an expert.
Technical details
Power consumption
< 2 VA/ 24 V DC, < 3.5 VA/ 24 V AC
Voltage supply
24 V AC (± 20 %) and
15…36 V DC
15…36 V DC
Load resistance
RL > 5 kOhm
Connection type
2- or 3-wire connection
Media temperature
–20...+50 °C
Type of pressure
differential pressure
Zero point offset
< ± 0.7 % of final value
± 1.4 % of final value for pressure ranges < 250 Pa
± 1.4 % of final value for pressure ranges < 250 Pa
Above- below-pressure
máx. ± 100 hPa
Medium
clean air and
non-aggressive, non-combustible gases
non-aggressive, non-combustible gases
Signal filtering
switchable 1 s/ 10 s (via DIP switches)
Electrical connection
0.14 - 1.5 mm², via plug-in screw terminal
Housing dimensions
143 x 97 x 61 mm (Tyr 2E)
Sum of Linearity+hysteresis
< ± 1 % of final value
± 2 % of final value for pressure ranges < ± 250 Pa
± 2 % of final value for pressure ranges < ± 250 Pa
Temperature drift values
± 0.1 % / °C
± 0.3 % / °C for pressure ranges < 250 Pa
± 0.3 % / °C for pressure ranges < 250 Pa
Pressure range
±5000Pa
Air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Output
0 - 10 V
Measuring ranges
0... 1000 Pa/ – 1000 ... + 1000 Pa
0...2000 Pa/ – 2000 ... + 2000 Pa
0...3000 Pa/ – 3000 ... + 3000 Pa
0...5000 Pa/ – 5000 ... + 5000 Pa
0...2000 Pa/ – 2000 ... + 2000 Pa
0...3000 Pa/ – 3000 ... + 3000 Pa
0...5000 Pa/ – 5000 ... + 5000 Pa
Pressure connection
equipped as standard with quick connect made from stainless steel
for PVC-fabric pressure hose Ø 6 mm ( 4/ 8 mm optional)
optionally with pipe fitting, stainless steel V2A (1.4305)
for pressure lines Ø 6 mm
for PVC-fabric pressure hose Ø 6 mm ( 4/ 8 mm optional)
optionally with pipe fitting, stainless steel V2A (1.4305)
for pressure lines Ø 6 mm
Accuracy
(5000 Pa): typically ± 25 Pa
compared to the calibrated reference device
compared to the calibrated reference device
Accuracy, pressure
± 25 Pa
Measuring range pressure
0... 1000 Pa/ – 1000 ... + 1000 Pa
0...2000 Pa/ – 2000 ... + 2000 Pa
0...3000 Pa/ – 3000 ... + 3000 Pa
0...5000 Pa/ – 5000 ... + 5000 Pa
0...2000 Pa/ – 2000 ... + 2000 Pa
0...3000 Pa/ – 3000 ... + 3000 Pa
0...5000 Pa/ – 5000 ... + 5000 Pa
Cable connection
cable fitting, stainless steel V2A (1.4305)
(M 20 x 1.5; with strain relief, exchangeable,
inner diameter 6 - 12 mm)
(M 20 x 1.5; with strain relief, exchangeable,
inner diameter 6 - 12 mm)
Housing
stainless steel V4A (1.4571),
with non-distortion cover bolting,
impact-resistant, high EMI shielding,
corrosion, temperature, UV and weathering resistant
with non-distortion cover bolting,
impact-resistant, high EMI shielding,
corrosion, temperature, UV and weathering resistant
Protection type
IP 65 (according to EN 60 529) in the built-in state
Housing tested, TÜV SÜD, Report No. 713160960B (Skadi2)
Housing tested, TÜV SÜD, Report No. 713160960B (Skadi2)
Standards
CE conformity,
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3