The pressure transmitter detects the overpressure, underpressure or differential pressure (P) between the two pressure inputs and converts the measured value into a linear output signal 0-10 V or 4-20 mA. 8 different scalings and the output damping of the pressure transmitter (0 sec / 1 sec / 5 sec / 10 sec) can be set on the device.
Alternatively, the measuring device can be operated as a volume flow measuring device. It calculates the volume flow (Q) using the system-specific K factor (k) and outputs the calculated value as a linear output signal 0-10 V or 4-20 mA. The K-factor, the desired scaling for the volume flow output signal 0-10 V or 4-20 mA, the density of the medium and the desired volume unit (l or m³ per s / min / h) can be conveniently set via the display menu.
The content of the backlit display can be rotated in 90 ° steps via the menu and the actual value, the set switching threshold, the relay status, the MIN / MAX measured values of the selected interval (1 h / 6 h / 12 h / 24 h) etc. can be read. For manual calibration of the zero point on site, the pressure transmitter carries out a zero point adjustment at the push of a button. If necessary, the pressure transmitter can be fine-calibrated on site using a SPAN controller.
- Pressure type positive, negative or differential pressure
- Medium air, non-aggressive, non-flammable, non-condensing gases
- Measurement range pressure V1: 0...+/-500 Pa, V2: 0...+/-5000 Pa, V3: 0...+/-100 Pa
- Measurement range volume flow (calculated) V1: 0-65.000 m³/h, V2: 0-200.000 m³/h, V3: 0-30.000 m³/h
- Scales V1: 0...+/-100, 0...+/-200 Pa, 0...+/-300 Pa, 0...+/-500 Pa; V2: 0...+/-1000, 0...+/-2000 Pa, 0...+/-3000 Pa, 0...+/-5000 Pa; V3: 0...+/-25, 0...+/-50 Pa, 0...+/-75 Pa, 0...+/-100 Pa
- Accuracy ±3,0% FS (at 20°C)
- Temperature dependency ±2,5% FS / 10 K
- Linearity inaccuracy ±1,0% final value
- Long term stability ±1% FS/year
- Zero-point adjustment max. +2% final value
- Offset ±5% from the selected scale by 270° potentiometer
- Reaction rate < 1 s, at 5% alteration relating to final value
- Output attentuation 0 s / 1 s / 5 s / 10 s selectable by DIP switch
- Sensor protection mounted inside housing
- Running-in time < 30 min at initial operation because of tempering
- 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)
- Electrical connection screw terminals max. 1,5 mm²
- Pressure resistance 5-times of measurement range
- 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
- Cable gland PG11 high-strength cable gland with strain relief
- Display optional LCD display with backlight on/off/auto
- Protection type IP65, IP20 if pressure connection port is open
- 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 Housing: screw fastening, Pressure connection: 2 plastic duct connecting nipple with fastening screws and 2 m PVC tube Ø 6 mm (in scope of delivery)
- Manual zero-point adjustment The zero point adjustment is started by pressing the button on the circuit board (push 10 s until LED stops flashing or by the display version the countdown 10-0 is completed). Before, a continuous operation of at least 1 hour must be sure, the offset must be in the middle position and the pressure inputs P+ and P- must be an obvious offense to the environment. The successful calibration will be signalized by 5 sec durable lightning of the LED.
- Approvals CE, EAC, RoHS
