Huba Differential pressure transmitter 699
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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