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Description
Volume flow meter
PREMASREG® 716x
The electronic PREMASREG® 716x 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 with a housing made from impact-resistant plastic, with cable gland or M12 connector according to DIN EN 61076-2-101 and pressure connection nozzles (quick connect optional) are fitted with one switching output, one continuous output and one backlit display for setting the switching point and displaying the ACTUAL values. The piezoresistive measuring element guarantees a high degree of reliability and accuracy.
This pressure sensor is used 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. The medium measured is air (non-precipitating), or other gaseous, non-aggressive, non-combustible media.
This pressure sensor is used 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. The medium measured is 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. Parameter entry is menu-based and is easy to perform using three buttons with the help of the display. The sensor is factory-calibrated; an environmental precision adjustment by an expert is possible. A connection set ASD-06 (2 m connection hose, two pressure nipples, screws) is included in the scope of supply.
Technical details
Voltage supply
24 V AC/ DC (± 10 %)
Power consumption
< 2 W/24 V DC; < 4,4 VA/24 V AC
Load resistance
RL > 15 kOhm
Output
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 (temperature-compensated 0...+50 °C)
Pressure connection
with connection nozzle
for pressure hose Ø 6 mm,
optionally with quick connect made from stainless steel
for PVC fabric pressure hose Ø 6 mm (external diameter)
for pressure hose Ø 6 mm,
optionally with quick connect made from stainless steel
for PVC fabric pressure hose Ø 6 mm (external diameter)
Type of pressure
differential pressure
Above- below-pressure
± 50 kPa
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
0.2 - 1.5 mm², via push-in terminal
Housing
plastic, UV-stabilised,
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 !
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)
Cable gland
M 20 x 1.5; including strain relief
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 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 65 (according to EN 60 529)*
Standards
CE conformity
according to EMC Directive 2014/ 30/ EU,
according to EN 61 326
according to EMC Directive 2014/ 30/ EU,
according to EN 61 326
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