Huba Differential pressure transmitter 694

 Compact construction Fast, easy mounting. Housing
 incorporates integral bracket for wall or
 ceiling mounting. Snap-on cover with a
 single screw Available with or without LCD display  Available with or without square root
 extraction Available zero point and full scale
 adjustable Attractive price / performance ratio
Technical overview
Pressure range
Relative and differential     -0.5 ... 0.5 mbar / 0 ... 1  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)
 Output Power supply  Load Current consumption  
supply voltage - 11 V
 
[Ohm] < 20 mA
2 wire 4 ... 20 mA 11.0 ... 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% < 400 Ohm < 30 mA
3 wire
 4 ... 20 mA 13.5 ... 33 VDC / 24 VAC 15% < 400 Ohm < 30 mA
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     < 10 ms
Load cycle     < 10 Hz
Protection standard   
Without cover     IP 00
     IP 54
With cover
     IP 65
Display
LCD display     3 digit
Setting range
Zero point     10% fs
Full scale     40 ... 100% fs
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
2)
    Factory adjustment:   Vertical, with pressure connections downwards
3)
    
Horizontal with cover downwards
Installation arrangement
4)
     Horizontal with cover upwards
Mounting     Mounting bracket (integrated in case)
Tests / Admissions
Electromagnetic compatibility    CE conformity acc. EN 61326-2-3
Weight
Without display    ~   90 g
With display     ~ 100 g

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