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Description
Pressure measuring transducers/ switches/ monitors for volume flow
PREMASREG® 716x - VA
The electronic PREMASREG® 761x - VA pressure sensor and switch is equipped with measuring functions for volume flow, differential pressure, filter monitoring and liquid level detection based on pressure measurement in clean air.
The devices 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 provide one switching output, one continuous output and a back-lit display for setting the switching point and showing actual values. The piezoresistive measuring element guarantees a high degree of reliability and accuracy.
The devices 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 provide one switching output, one continuous output and a back-lit display for setting the switching point and showing actual values. The piezoresistive measuring element guarantees a high degree of reliability and accuracy.
This pressure sensor is used 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. Measured media are air (non-precipitating) or other gaseous, non-aggressive, non-combustible media.
It has a manual zero-point pushbutton and an offset potentiometer for final value correction. Parametre entry is menu-based and is easy to perform using three buttons in combination with the display. The sensor is factory-calibrated and can be fine-tuned to ambient conditions by an expert.
It has a manual zero-point pushbutton and an offset potentiometer for final value correction. Parametre entry is menu-based and is easy to perform using three buttons in combination with the display. The sensor is factory-calibrated and can be fine-tuned to ambient conditions by an expert.
Technical details
Voltage supply
24 V AC/ DC (± 10 %) and 15...36 V DC
Power consumption
< 1.5 VA/ 24 V DC, < 2.8 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
Measuring function
Volume flow, differential pressure,
filter monitoring, fill level (adjustable)
filter monitoring, fill level (adjustable)
Measuring ranges
10...100% (adjustable)
Media temperature
–20...+50 °C
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
Type of pressure
differential pressure
Above- below-pressure
máx. ± 10000 Pa
Medium
clean air and
non-aggressive, non-combustible gases
non-aggressive, non-combustible gases
Signal filtering
switchable 1 s/ 10 s
and small value suppression < 1 %
and small value suppression < 1 %
Signal hysteresis
± 1 % or final value (pressure) 10 Pa/ 50 Pa
Electrical connection
0.14 - 1.5 mm², via plug-in screw terminal
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
Housing dimensions
143 x 97 x 61 mm (Tyr 2E)
Sum of Linearity+hysteresis
< ± 1 % of final value
Temperature drift values
± 0.1 %/ °C
Air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
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
Display with illumination, three-line,
cutout approx. 70 x 40 mm (W x H),
for displaying the volume flow, differential pressure,
contamination degree or level
and for setting the switchpoint, K factor, measuring range limits
and other settings
cutout approx. 70 x 40 mm (W x H),
for displaying the volume flow, differential pressure,
contamination degree or level
and for setting the switchpoint, K factor, measuring range limits
and other settings
K factor
1 to 3000 (adjustable)
Units
m³/ s, m³/ min, m³/ h, l/ s, l/ min, l/ h, %, cm (adjustable)
Max. value displayed
999999