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Huba Differential pressure transmitter 699

These pressure transmitters type 699 are available in switchable pressure ranges and with digital device or Modbus. The full-version includes customer specific adjustment possibilities. Especially  developed sensors for each pressure range allow a physically correct and long term stable measurement.
The large variety offers a manifold use in the air-conditioning technique as well as for fine measurement in industry or medical applications.

  Fast, easy mounting. Housing incorporates
 integral bracket for wall or ceiling mounting  Available with or without LCD display  Adjustable measurement range Switchable output signals  Switchable response curve
 (linear or root-extracted)  Resettable Zero Point (Reset button)   Full scale adjustable Attractive price / performance ratio Application at over and low  pressure range
 possible

Technical overview
Pressure range
Relative and differential    -1 ... 1 mbar / 0 ... 0.3  50 mbar
Operating conditions
Medium     Air and neutral gases
    Medium / ambient    0 ... +70 ¨¤
    Storage -10 ... +70 ¨¤
Temperature
 
    No condensation
   < 3 mbar P1 =   50 mbar P2 =      4 mbar
Application at over pressure range
    > 3 mbar P1 = 100 mbar P2 =      4 mbar
Tolerable overload on one side
    < 3 mbar P1 =    -4 mbar P2 =   -50 mbar
Application at under pressure range
    > 3 mbar P1 =    -4 mbar P2 = -100 mbar
   ambient temperature    2 x overload
Rupture pressure
    70 ¨¤C 1.5 x overloa
Materials in contact with medium
Sensor     Ceramic Al O  (96%)
2 3
Diaphragm     Silicone
Housing     Polycarbonat PC
Electrical overview
1) 1) 2)
 Output   Power supply    Load Current consumption  
supply voltage - 8 V
 
[Ohm] < 20 mA
2 wire 4 ... 20 mA  8.0 ... 33 VDC  <
0.02 A
 0 ... 10 V  13.5 ... 33 VDC / 24 VAC 15% > 10 kOhm < 10 mA
 0 ... 20 mA  13.5 ... 33 VDC / 24 VAC 15% < 500 Ohm < 30 mA
3 wire
 4 ... 20 mA 13.5 ... 33 VDC / 24 VAC 15% < 500 Ohm < 30 mA
3)
    6.5 ... 33 VDC / 24 VAC 15% > 10 kOhm < 10 mA
 0 ...   5 V
Filter     Response time switchable by  off / 0.2s / 1s / 5s / 20s
Polarity reversal protection  Short circuit proof and protected against polarity reversal. Each connection is protected against crossover up to max. supply voltage.
Dynamic response
Response time     < 20 ms
Load cycle     < 10 Hz
Protection standard   
Without cover     IP 00
     IP 54
With cover
     IP 65
Display
    Double spaced  per 8 digit alphanumeric
LCD Display
    At additional backlight LCD-Display 30 mA current consumption
Module MODBUS   RTU RS-485
Ranges of adjustment
The zero piont is adjustable by reset button.
The Full scale is adjustable by DIP-Switch and additional by the turbopoti.
Adjustability
Optional version with self configurable parameters (see order code selection table)
Electrical connection
2
Screw terminals for wire and stranded conductors up to 1.5 mm
Cable gland with built-in strain relief PG11
Pressure connection
Connection pipe    !à 6.2 m
Mounting instructions
Installation arrangement    Recommendation:  Vertical, with pressure connections downwards
Mounting     Mounting bracket (integrated in case)
Tests / Admissions
UL
Electromagnetic compatibility    CE-conformity acc. EN 61326-2-3
Weight
Without display    ~   90 g
With display     ~ 100 g
 

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