Mechanical Connection - WIKA IS-20-S Manual De Instrucciones

7. Starting, operation

Mechanical connection

IS-20-S, IS-20-F,
IS-21-S IS-21-F
max.
max.
50Nm
50Nm
Sealing
Generally the serial number on the product label
applies. If there is no serial number on the product
label, the number on the hexagon will apply.
„ Remove the protection cap only just before installation and absolutely avoid any
damage to the diaphragm during installation as well (IS-21-S, -F).
For Model IS-20-S, -F you have to provide for a sealing element; exceptions are
„
instruments with self-sealing threads (e.g. NPT thread).
For Model IS-21-S, -F the sealing ring is included in delivery.
Please refer to our data sheet "Pressure gauge sealing washers AC 09.08" in WIKA's
„
product catalog Pressure and Temperature Measurement or our website
www.wika.de for details about sealing washers.
When mounting the instrument, ensure that the sealing faces of the instrument and
„
the measuring point are clean and undamaged.
Screw in or unscrew the instrument only via the flats using a suitable tool and the
„
prescribed torque. The appropriate torque depends on the dimension of the pressure
connection and on the sealing element used (form/material). Do not use the case as
working surface for screwing in or unscrewing the instrument.
„ When screwing the transmitter in, ensure that the threads are not jammed.
8 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio
Product label (example)
IS-20-H
max.
50Nm
Signal
Power Supply
P # Product No. S # Serial No.
Order code
PIN assignment
Coded manufacture date
GB
7. Starting, operation
For tapped holes and welding sockets please see Technical Information IN 00.14 for
„
download at www.wika.de
„ Protect the diaphragm against any contact with abrasive substances and
pressure peaks and do not touch it with tools. If you damage the diaphragm,
no intrinsic safety can be guaranteed (ATEX, FM, CSA)!
Warning
Ensure that under hazardous dust ennvironment the pressure transmitter is
„
mounted in a shielded section and protect it against shocks.
Observe the technical data for the use of the pressure transmitter in connection with
„
aggressive/corrosive media and for the avoidance of mechanical hazards.
Installation in / mounting to zone 0 and zone 20 (zone 20 not with IS-20-H)
(In general Zone 0 is given when the pressure transmitter is surrounded by a mixture of explo-
sive gases more than 1.000 hours per year = continuous hazard).
When installing the pressure transmitter or the cable gland into areas whic
„
require category 1G equipment, ensure that ingress protection IP67 accor-
ding to IEC 60 529 is guaranteed.
Warning
When installing the pressure transmitter or the cable gland into areas which
„
require category 1D equipment, ensure that ingress protection IP 6X accor-
ding to IEC 60 529 is guaranteed.
Measurement of process media with higher temperatures than the media temperature ranges
specified in the tables of the EC-type examination certificate under item 15.1.2 is permissible,
if special cooling elements are used (not for IS-20-H).
Observe the permissible surface temperature applicable for this range
„
according to the defined temperature classes.
„ Observe the maximum temperature value (of the temperature range defined
Warning
under item 15.1.2 in the EC-type examination certificate) at the hexagon of
the tubular case.
„ Ensure an unhindered air circulation at the cooling element.
„ Protect the pressure transmitter against touching or affix a warning notice.
„ Insulate heat sources thermally from the pressure transmitter (e.g. pipes or tanks).
IS-2X WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio
GB
9
IS-2X