WIKA DE - Manual

INSTRUCTION MANUAL
NI-223E
Rev. 2 11/02
COMPACT DIFF. PRESSURE SWITCHES SERIES DC & DE
All data, statements and recommendations supplied with this manual are based on information believed by us to be reliable. As the
conditions of effective use are beyond our control, our products are sold under the condition that the user himself evaluates such
conditions before following our recommendations for the purpose or use foreseen by him.
The present document is the property of ETTORE CELLA SPA and may not be reproduced in any form, nor used for any purpose
other than that for which it is supplied.
WEATHERPROOF EXPLOSIONPROOF
SERIES DC SERIES DE
Sfiati
vents
Sfiati
vents
A High pressure connection
B Low pressure connection C Cable entry A High pressure connection
B Low pressure connection C Cable entry
WEIGHT 5,4 kg dimensions in mm WEIGHT 5,4 kg dimensions in mm
NOTE: dimensions and weights are not binding unless released on certified drawings.
CAUTION
• Before installing, using or carrying out maintenance on the instrument it is necessary to read and understand the indications given
in the attached Instruction Manual.
• The instrument must only be installed and maintained by qualified personnel.
• INSTALLATION IS TO BE CARRIED OUT ONLY AFTER CHECKING THAT INSTRUMENT CHARACTERISTICS ARE
CONSISTENT WITH PROCESS AND PLANT REQUIREMENTS
• The
functional features of the instrument and its degree of protection are shown on the identification plate fixed to the case.
CONTENUTO
1 -
GENERAL NOTES
2 - OPERATING PRINCIPLE
3 - IDENTIFICATION PLATE AND MARKINGS
4 - SET POINT REGULATION
5 - SET POINT CALIBRATION
6 - MOUNTING AND CONNECTIONS
7 - INSTRUMENT PLUMBING
8 - PUTTING INTO OPERATION
9 - FUNCTIONAL VERIFICATION
10 - TROUBLESHOOTING
11 - STOPPING AND DISMOUNTING
12 - DEMOLITION
SAFETY INSTRUCTIONS FOR USE IN HAZARDOUS ATMOSPHERES.
RECOMMENDATIONS FOR PRESSURE SWITCH SAFE USE.
RELATED DOCUMENT
To authentified document with certificate
N° CESI 02 ATEX 119