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Description
Barometers/ Measuring transducers for atmospheric pressure
PREMASGARD® ALD
Calibratable PREMASGARD® ALD barometre with active output (U/I switchable) and 4 measuring ranges (max. 600...1100 hPa, switchable), in a compact plastic housing with quick-locking screws, optionally with/without display.
The pressure transmitter serves to measur the atmospheric air pressure in clean air (non-precipitating) or other non-aggressive, non-combustible gases. It is used in various applications such as ventilation and air conditioning systems, in meteorological measurement stations and air-pressure-dependent control systems.
The pressure transmitter serves to measur the atmospheric air pressure in clean air (non-precipitating) or other non-aggressive, non-combustible gases. It is used in various applications such as ventilation and air conditioning systems, in meteorological measurement stations and air-pressure-dependent control systems.
The piezoresistive measuring element is temperature-compensated and guarantees a high degree of reliability and accuracy. 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 %)
Power consumption
< 1 W at 24 V DC; < 2 VA at 24 V AC
Working resistance
Ra (Ohm) = 25 ...450 Ohm for I variant
Load resistance
RL > 25 kOhm for U variant
Max. pressure
± 0.5 % of final value per year
Output
switchable 0 -10 V/ 4...20 mA (via DIP switches)
Connection type
3-wire connection
Current consumption
max. 20 mA (at 24 V DC)
Measuring ranges
multi-range switching with 4 switchable measuring ranges
Type of pressure
atmospheric pressure/ absolute pressure
Accuracy
typically ± 1.5 % of final value (at +20°C)
Zero point offset
± 50 hPa
Above- below-pressure
200 kPa
Ambient temperature
–10...+50 °C
Storage temperature
–20...+50 °C
Medium
clean air and
non-aggressive, non-combustible gases
non-aggressive, non-combustible gases
Signal filtering
0 s/ 1 s/ 5 s/ 10 s (selectable via DIP switches)
Electrical connection
2- or 3-wire connection
0.14 - 1.5 mm² via terminal screws
0.14 - 1.5 mm² via terminal screws
Cable connection
cable gland, plastic (M 16 x 1.5; with strain relief,
exchangeable, max. inner diameter 10.4 mm) or
M12 connector (male, 5-pin, A-code)
according to DIN EN 61076-2-101 (optional on request)
exchangeable, max. inner diameter 10.4 mm) or
M12 connector (male, 5-pin, A-code)
according to DIN EN 61076-2-101 (optional on request)
Cable gland
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 10.4 mm
max. inner diameter 10.4 mm
Long-term stability
± 0.5 % of final value per year
Hysteresis
± 0.1 % of final value
Temperature drift values
± 0.1 % of final value/ °C
Temperature drift values
± 0.5 % of final value per 10 K
Linearity
± 0.5 % of final value
Air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 65 (according to EN 60 529) Housing tested,
TÜV SÜD, Report No.713139052 (Tyr 1)
TÜV SÜD, Report No.713139052 (Tyr 1)
Standards
CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU