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Description
Pressure and differential pressure measuring transducers/ switches
PREMASREG® 711x - VA
The electronic PREMASREG® 711x - VA pressure transducers and switches are equipped with eight switchable measuring ranges, one switching output, one continuous output, and a display for setting the switchpoint and showing the actual pressure (eight devices in one, plus differential pressure switch/monitor, continuous pressure transducer in a single device).
The pressure switches feature a V4A stainless steel housing, a cable gland or M12 connector according to DIN EN 61076-2-101 and a stainless steel quick-connect pressure port (pipe fitting optional). They serve 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 sensor devices 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 device has a button for manual zero-point calibration (automatic zero-point calibration optional) as well as one offset potentiometer for setting the switching point and one for final value correction. The sensor is factory-calibrated and can be fine-tuned to ambient conditions by an expert.
Applications of these sensor devices 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 device has a button for manual zero-point calibration (automatic zero-point calibration optional) as well as one offset potentiometer for setting the switching point and one for final value correction. The sensor is factory-calibrated and can be fine-tuned to ambient conditions by an expert.
Technical details
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
Output
0 -10 V
1 changeover contact (24 V), 1 A ohmic load
1 changeover contact (24 V), 1 A ohmic load
Output signal
0 -10 V
1 changeover contact (24 V), 1 A ohmic load
1 changeover contact (24 V), 1 A ohmic load
Connection type
3-wire connection
Media temperature
-4...+122 °F
Type of pressure
differential pressure
Zero point offset
< ± 0.7 % of final value
Above- below-pressure
max. ± 40.2 inWC
Medium
clean air and
non-aggressive, non-combustible gases
non-aggressive, non-combustible gases
Pressure range
±1000Pa
Signal filtering
switchable 1 s/ 10 s
Setting increment p
1 % of pressure range (0.4 inWC => 0.004 inWC; 20 inWC => 0.200 inWC)
Switching hysteresis
± 1 % of pressure range (0.4 inWC => ± 0.004 inWC; 20 inWC => ± 0.200 inWC)
Signal hysteresis
< ± 1 % of final value
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
Measuring ranges
0... 100 Pa/ – 100... + 100 Pa
0... 300 Pa/ – 300... + 300 Pa
0... 500 Pa/ – 500... + 500 Pa
0... 1000 Pa/ – 1000... + 1000 Pa
0... 300 Pa/ – 300... + 300 Pa
0... 500 Pa/ – 500... + 500 Pa
0... 1000 Pa/ – 1000... + 1000 Pa
Temperature drift values
± 0.1 %/ K
Air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
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
(± 4.0 inWC): typically ± 0.020 inWC
compared to the calibrated reference device
compared to the calibrated reference device
Accuracy, pressure
± 5 Pa
Measuring range pressure
0... 100 Pa/ – 100... + 100 Pa
0... 300 Pa/ – 300... + 300 Pa
0... 500 Pa/ – 500... + 500 Pa
0... 1000 Pa/ – 1000... + 1000 Pa
0... 300 Pa/ – 300... + 300 Pa
0... 500 Pa/ – 500... + 500 Pa
0... 1000 Pa/ – 1000... + 1000 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
Features
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
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