Alarm Contacts - WIKA 5 Instructions D'utilisation

3. Technical data ... / 4. Alarm contacts
Permissible vibratory stress at the mounting location
T As a matter of principle the instruments should only be mounted at locations
without vibratory stresses
T Where required, a decoupling from the mounting location can be achieved
e.g. by a flexible connecting line from the measuring point to the pressure
gauge and mounting via a measuring instrument bracket.
T If this is not possible, the following limits must not be exceeded:
Dry gauges:
(Models 532.XX)
Liquid-filled gauges:
(Model 533.XX)
The liquid filling has to be checked on a regular basis.
The liquid level must not drop below 75% of the gauge diameter.

4. Alarm contacts

EC-type examination certificates
T Standard version Model 831.XX
PTB 99 ATEX 2219 X (enclosure 2) and ZELM 03 ATEX 0128 X (enclosure 4)
Depending on the number of switches and on the case diameter either
Model SJ2-N... or Model SJ3.5-...-N... is used.
Safety pattern version Models 831.XX - SN or - S1N
T
PTB 00 ATEX 2049 X (enclosure 3) and ZELM 03 ATEX 0128 X (enclosure 4)
Depending on the number of switches and on the case diameter either
Models SJ 2-SN..., SJ 2-S1N..., SJ 3.5-SN.. or SJ 3.5-S1N... are used.
The built-in sensor type is stated on the product label of the pressure gauge.
Wiring details
T The electrical connections should be made by qualified electricians
T Connection of the switches via screw terminals in the terminal box
T Conductor cross section max. 1.5 mm
T The terminal assignment is stated on the connection plate at the
pressure gauge
WIKA Operating instructions pressure gauges Model 5 with 831 per ATEX
Frequency range < 150 Hz
Acceleration < 0.7 g (7 m/s
Frequency range < 150 Hz
Acceleration < 4 g (40 m/s
2
)
2
)
2
GB
7