WIKA PGS23.063 - Manual (Page 3)

Wiring details
T The electrical connections should be made by qualified electricians
T Cable outlet 2 m length, conductor cross section 0.14 mm 2 , flying leads
T The terminal assignment is stated on the connection plate at the pressure gauge
T The instruments are to be included in the equipotential bonding of the
plant!
Caution
!
Model designation of the manufacturer EC-type examination WIKA-
Fa. Pepperl & Fuchs certificate Model
KFD2-SR2-Ex1 PTB 00 ATEX 2080 904.31
KFD2-SR2 Ex2 PTB 00 ATEX 2080 904.32
KHA6-SR2-Ex1 PTB 99 ATEX 2141 904.28
KHA6-SR2-Ex2 PTB 99 ATEX 2141 904.29
The permissible limits of the intrinsically safe supply circuits:
U
i
= 15 V
I
i
= 60 mA
P
i
= 100 mW for temperature class T6 resp. 150 mW for temperature class T4
Suitable switch amplifiers are e.g.:
Electromagnetic compatibility
EMC according to EN 60 947-5-2.
The instruments are to be protected against strong electromagnetic fields.
To adjust red set pointers
The red set pointers for the alarm contacts are adjustable over the adjustment lock in the
window with the aid of the adjustment key (included in delivery).
Red set
pointers
Adjustment lock
The red set pointers for the alarm contacts are adjustable over the full range of the
instrument. Switching points shall be set in the ranges between 10 % und 90 % of the
scale to ensure switching accuracy and long life of the mechanical measuring system.
5. Commissioning
During the commissioning process pressure peaks must be absolutely avoided. Open the
shut-off valves slowly.
6. Maintenance and servicing / cleaning
The instruments require no maintenance or servicing.
The indicator and switching function should be checked once or twice every 12 months. The
instrument must be disconnected from the process to check with a pressure testing device.
The instruments should be cleaned with a damp cloth moistened with soap solution.
Remainder of the pressure medium in dismounted pressure gauges may be hazardous or
toxic. This should be considered when handling and storing the removed pressure gauges.
7. Repairs
Repairs are to be only carried out by the manufacturer or appropriately trained personnel.
For further details see WIKA data sheet PM 02.02, PM 02.04 or PM 02.11.
8. Disposal
Dispose of instrument components and packaging materials in accordance with the
respective waste treatment and disposal regulations of the region or country to which the
instrument is supplied.