Faults - WIKA PG81 Mode D'emploi

5. Commissioning, operation / 6. Faults
For sealing the pressure gauge connections with parallel threads, use flat gaskets, lens-
type sealing rings or WIKA profile sealings at the sealing face
(e.g. NPT thread), sealing is made in the thread
e.g. PTFE tape (EN 837-2).
EN
The torque depends on the sealing used. In order to orientate the measuring instrument
so that it can be read as well as possible, a connection with LH-RH union or union nut
should be used.

6. Faults

Fault
Indication error
Window misted up on the
inside
Functionality of the
'as-delivered' condition is no
longer fulfilled
12
CAUTION!
Physical injuries and damage to property and the environment
If faults cannot be eliminated by means of the listed measures, the instru-
ment must be taken out of operation immediately.
▶
Ensure that pressure or signal is no longer present and protect against
accidental commissioning.
▶
Contact the manufacturer.
▶
If a return is needed, please follow the instructions given in chapter 8.2
"Return".
WARNING!
Physical injuries and damage to property and the environment
caused by hazardous media
Upon contact with hazardous media (e.g. oxygen, acetylene, flammable
or toxic substances), harmful media (e.g. corrosive, toxic, carcinogenic,
radioactive), and also with refrigeration plants or compressors, there is a
danger of physical injuries and damage to property and the environment.
Should a failure occur, aggressive media with extremely high temperature
and under high pressure or vacuum may be present at the instrument.
▶
For these media, in addition to all standard regulations, the appropriate
existing codes or regulations must also be followed.
▶
Wear the requisite protective equipment (see chapter 3.5 "Personal
protective equipment").
Cause
Inadmissible operating
conditions, e.g. exceeding
the pressure limitation
Pressure compensation
film on the case back has
come loose
Transport damage
using additional sealing materials,

Measure
Replace pressure gauge, see
chapter 8 "Dismounting, return
and disposal"
Replace pressure gauge, see
chapter 8 "Dismounting, return
and disposal"
Return to the manufacturer
WIKA operating instructions models PG81 and PG91
. With a tapered thread
