The pressure transducer AD/A registers the atmospheric or barometric pressure in the range of 500...1150 mbar and converts this measured value into a linear output signal 0-10 V respectively 4-20 mA. As an option the pressure transmitter has a potential-free changeover contact and a backlit display. The display content can be rotated in 90° steps using a menu and the actual value, the switching threshold set, the state of the relay, the MIN/MAX measured values for the selected intervals(1 h / 6 h / 12 h / 24 h) etc. can be read out. On the display version the altitude above sea level cab be entered and switched between atmospheric and barometric air pressure. The atmospheric air pressure is defined by the weather conditions and the altitude above sea level. The barometric air pressure is defined by the weather conditions and normalised according to the altitude above sea level. If required the pressure transducer can be finely calibrated in site using an SPAN controller.
| AVAILABLE MODELS |
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| Article Number |
Pressure |
Output pressure |
Version |
| AD/A-I |
500...1150 mbar |
4-20 mA |
without display |
| AD/A-ID |
500...1150 mbar |
4-20 mA |
with display |
| AD/A-IR |
500...1150 mbar |
4-20 mA, changer |
without display |
| AD/A-IRD |
500...1150 mbar |
4-20 mA, changer |
with display |
| AD/A-U |
500...1150 mbar |
0-10 V |
without display |
| AD/A-UD |
500...1150 mbar |
0-10 V |
with display |
| AD/A-UR |
500...1150 |
0-10 V, changer |
without display |
| AD/A-URD |
500...1150 mbar |
0-10 V, changer |
with display |
Technical Specifications
Pressure type: atmospheric air pressure / barometric air pressure (display version only)
Medium: air, non-aggressive, non-flammable, non-condensing gases
Measurement range atm. air pressure: 500-1150 mbar
Scales: 500...1150 mbar, 750...1150 mbar
Accuracy: ±5 mbar (at 20°C)
Temperature dependency: 1 mbar / 10 K
Linearity inaccuracy: ±1,0% final value
Pressure resistance: 5-times of measurement range
Sensor: Piezoresistive on-chip silicon sensor
Sensor protection: stainless steel sinter filter
Supply voltage analog 0-10 V: 24 V AC/DC (±5%)
Supply voltage analog 4-20 mA: 15...36 V DC (Ubmin = 15 V + RLoad*0,02A)
Current consumption at 0-10 V: typ. 15 mA, 30 mA peak current consumption for 50 ms at switching moment at option relay
Current consumption at 4-20 mA: max. 20 mA / output, 40 mA peak current consumption for 50 ms at switching moment at option relay
Analogue output 0-10 V: 3-wire connection, min. load resistance 100 kOhm
Analogue output 4-20 mA: 2-wire connection (transmitter), max. RLoad(Ohm) = (+Ub - 15 V) / 0,02 A
Alarm output: 1 x potential-free change-over contact, 48 V, 1 A
Switching Hysteresis Relay: 2% of the selected scaling (without display), 0,5...5% of the selected scaling adjustable (with display)
Offset: max. ±50 mbar
Electrical connection: screw terminals max. 1,5 mm²
Display: optional LCD display with backlight on/off/auto
Output attentuation: 0 s / 1 s / 5 s / 10 s selectable by DIP switch
Cable gland: PG11 high-strength cable gland with strain relief
Housing: Polycarbonate PC UL 94 V0 with hinge locks, color signal white similar to RAL 9003
Dimensions: Housing: L 89 x W 80 x H 47 mm
Protection type: IP30
Protection class: III
Working range r.H.: 0...98% r.H. in contaminant-free, non-condensing air
Working temperature: 0...+50°C
Storage temperature: 0...+50°C
Installation: screw fastening
Approvals: CE, EAC, RoHS
