Ip Designation; Differential Pressure Transmitter - ABB 265DS Operating Instruction

Mounting
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4.2

IP designation

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The housings for 265 .. / 267 .. / 269 .. transmitters are certified as conforming to protection type
IP 66 / IP 67 in accordance with the IEC 529 standard.
The first number indicates the type of protection the integrated electronics have against the
ingress of foreign bodies, including dust. "6" means that the housing is dust-proof (i.e., no
ingress of dust). The second number indicates the type of protection the integrated electronics
have against the ingress of water. "6" means that the housing is protected against water;
specifically, powerful jets of water under standardized conditions. "7" means that the housing is
protected against water; specifically, against the effects of temporary immersion in water under
standardized water pressure and temporal conditions.
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4.3

Differential pressure transmitter

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The pressure transmitter can be mounted directly on the shut-off valves. A mounting bracket for
wall or pipe mounting (2" pipe) is also available as an accessory.
Ideally, the pressure transmitter should be mounted in a vertical position to prevent subsequent
zero shifts.
Important
If the transmitter is installed at an angle, the filling liquid exerts hydrostatic pressure on the
measuring diaphragm, resulting in a zero shift. In such an event, the zero position will need to
be corrected.
However, generally speaking the pressure transmitter can be used in any mounting position. It
is mounted by following the same guidelines as for a manometer.
For mounting options with a bracket, see the section "Technical data".
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26 265Dx, 265VS IM/265D/V-EN-02