|
Operating Instructions |
|
|
Betriebsanleitung |
|
|
Mode d'emploi |
|
|
|
|
|
|
|
Pressure gauges Model 2 per directive 94/9/EC (ATEX) |
GB |
|
with inductive contacts Model 831 |
|
|
|
||
|
|
|
Druckmessgeräte Typ 2 nach Richtlinie 94/9/EG (ATEX) |
D |
|
mit Induktivkontakten Typ 831 |
|
|
|
||
|
|
|
Manomètres Type 2 selon directive 94/9/EG (ATEX) |
F |
|
avec contacts inductifs Type 831 |
|
|
|
||
II 2 GD c TÜV 03 ATEX 2302 X
Model 232.50.100 per ATEX with inductive contact Model 831.12
GB |
Operating instructions Model 2 per ATEX |
|
|
|
with Model 831 |
Page |
3-23 |
|
|||
|
|
|
|
D |
Betriebsanleitung Typ 2 nach ATEX |
|
|
|
mit Typ 831 |
Seite |
25-45 |
|
|||
|
|
|
|
F |
Mode d’emploi Type 2 selon ATEX |
|
|
|
avec Type 831 |
Page |
47-53 |
|
2064246 07/2009 GB/D/F
Contents
Contents
1. |
Safety instructions |
4 |
GB |
|
|||
|
|||
2. |
Description |
4 |
|
3. |
Technical data and intended use |
5 |
|
4. |
Switch contacts |
7 |
|
5. |
Commissioning |
9 |
|
6. |
Maintenance and servicing / cleaning |
9 |
|
7. |
Repairs |
9 |
|
8. |
Disposal |
9 |
|
Appendix 1: Declaration of conformity for Models 2XX.51 |
10 |
|
|
|
with inductive contacts Model 831 |
|
|
|
|
|
|
Appendix 2: EC-type examination certificate (Ex approval |
|
|
|
for gases) for slot-type initiators types SJ |
11-13 |
|
|
(WIKA-Model 831) |
|
|
|
Appendix 3: EC-type examination certificate (Ex approval |
|
|
|
for gases) for SN-sensors types SJ |
14-17 |
|
|
(WIKA-Model 831-SN / S1N) |
|
|
|
Appendix 4: EC-type examination certificate (Ex approval |
|
|
|
for dust) for SN-proximity sensors types SJ |
18-22 |
|
|
(WIKA-Model 831 and 831-SN / S1N) |
|
|
|
2064246 07/2009 GB/D/F
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX
1.Safety instructions / 2. Description
1.Safety instructions
The appropriate national safety regulations (i.e. VDE 0100 / GB ! EN 60 079-14 / EN 837-2) must be observed when installing,
commissioning and operating these instruments.
Caution
Only work on the gauge with the voltage disconnected
Serious injuries and/or damage can occur should the appropriate regulations not be observed
Only appropriately qualified personnel should work on these instruments
2. Description
The pressure gauges measure the pressure with elastic Bourdon tube measuring elements
The measuring characteristics are in accordance with the EN 837-1 and
DIN 16 085 standards
In addition the Models 23X.30 and 23X.36 also meet the requirements, relating to safety pattern pressure gauges, outlined in the EN 837-1 (user protection) standard
The built-in electrical switch contacts are non-contact slot-type inductive proximity sensors, which are powered from switching amplifiers with certified intrinsically safe circuits. When any of the adjustable set points is reached, the associated output circuits will either open or close.
As standard Model 831 slot sensors, to EC-type examination certificate PTB 99 ATEX 2219 X (see Appendix 2) and ZELM 03 ATEX 0128 X (see Appendix 4), are used
Model 831-SN and -S1N SN sensors, to PTB 00 ATEX 2049 X (see Appendix 3) and ZELM 03 ATEX 0128 X (see Appendix 4), are special designs with safety features (that are not relevant to explosion protection) for special applications
The connected loads for the switches are in accordance with EN 60 947-5-6 ("NAMUR").
2064246 07/2009 GB/D/F
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX
3.Technical data and intended use
3.Technical data and intended use
Pressure limitation |
|
|
GB |
|
|
|
|
|
|
|
|
Model 21X.20, 23X.50/30: |
Steady: |
full scale value |
|
|
Fluctuating: |
0.9 x full scale value |
|
|
Short time: |
1.3 x full scale value |
|
Model 23X.36: Steady: |
full scale value |
||
Fluctuating: |
0.9 x full scale value |
||
Short time: |
overload range |
||
Process connection
In according with the general technical regulations for pressure gauges
(i.e. EN 837-2 „Selection and installation recommendations for pressure gauges“).
When screwing gauges in, the force required for this must not be applied through the case, but rather through the spanner flats (using a suitable tool) provided for this purpose on the square shaft of standard connections.
Installation with spanner
2064246 07/2009 GB/D/F
Temperature effect
When the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ±0.4 %/10 K of full scale value
IP Ingress protection
Housing (EN 60 529/IEC 60 529)
Model 212.20: IP 54
Models 23X.X0/36: IP 65
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX
3. Technical data and intended use
Operating Temperature |
|
Ambient: -25 … +60 °C |
(with inductive contacts in safety pattern version |
GB |
Models 831.XX-SN up to -40 °C) |
Attention: Footnote 1) under table 1 must be absolutely taken into account!
Medium: see table 1
Attention! In the case of gaseous substances, the temperature may increase due to compression warming. In these cases it may be necessary to throttle the rate of change of pressure or reduce the permissible temperature of the pressure medium.
Temperature Class of the |
Maximum permissible medium temperature |
|||
ambient atmosphere |
(in the pressure system) |
|
||
(ignition temperature) |
|
|
|
|
|
|
Model 212.20 |
Models 232 |
Models 233 |
|
|
|||
|
|
|
(dry gauges) |
(liquid filled gauges) |
|
|
|
|
|
T 6 |
(> 85 °C) |
+70 °C |
+70 °C |
+70 °C |
T 5 (> 100 °C) |
+80 °C |
+85 °C |
+85 °C |
|
T 4 (> 135 °C) |
+80 °C |
+120 °C |
+100 °C |
|
T 3 |
(> 200 °C) |
+80 °C |
+185 °C |
+100 °C |
T 2 |
(> 300 °C) |
+80 °C |
+200 °C |
+100 °C |
T 1 |
(> 455 °C) |
+80 °C |
+200 °C |
+100 °C |
Table 1: Permissible medium temperature (only mechanical part)
1)The permissible uppper ambient temperature for the electrical components is determined by the electrical connection values and the ignition temperature of the ambient gases, vapours and dusts. Therefore the maximum permissible ambient temperatures specified in the EC-type examination certificates for slot-type sensors and SN sensors must be observed as well. The lower of these two values is to be considered the maximum permissible ambient temperature!
Installation
In order to ensure that with Model 23X pressure can be safely and reliably vented through the case back, a distance of at least 25 mm must be left free behind the case!
In order to avoid any additional heating, the instruments must not be |
GB/D/F |
|
exposed to direct solar irradiation while in operation! |
||
07/2009 |
||
With filled versions the ventilating valve (pressure ranges ≤10 bar) at the top |
||
|
||
of the case must be opened prior to commissioning! |
2064246 |
|
|
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX
3. Technical data and intended use / 4. Switch contacts
Permissible vibration load at the mounting point
The instruments should always be installed in locations free from vibration.
If necessary, it is possible to isolate the instrument from the mounting point |
GB |
|
|
||
by installing a flexible connection line between the measuring point and the |
|
|
pressure gauge and mounting the instrument on a suitable bracket. |
|
|
If this is not possible, the following limit values must not be exceeded: |
|
|
Dry gauges: |
Frequency range < 150 Hz |
|
(Model 732) |
Acceleration < 0.7 g (7 m/s2) |
|
Liquid-filled gauges: |
Frequency range < 150 Hz |
|
(Model 733) |
Acceleration < 4 g (40 m/s2) |
|
The liquid filling must be checked on a regular basis.
The liquid level must not drop below 75 % of the gauge diameter.
4. Switch contacts
EC-type examination certificates
Standard version Model 831.XX
PTB 99 ATEX 2219 X (Appendix 2) and ZELM 03 ATEX 0128 X (Appendix 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
PTB 00 ATEX 2049 X (Appendix 3) and ZELM 03 ATEX 0128 X (Appendix 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 |
||
|
The electrical connections must only be made by qualified personnel |
||
GB/D/F |
Connection of the switches via screw terminals in the terminal box |
||
|
Conductor cross section max. 1.5 mm2 |
||
07/2009 |
|||
|
pressure gauge |
||
2064246 |
|
The terminal assignment is stated on the connection plate of the |
|
|
The instruments must be connected to the equipotential bonding of the plant |
||
|
|||
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX
4. Switch contacts
The permissible limits of Ui, Ii and Pi for the intrinsically safe supply circuits depend on the sensor type. They can be taken from the corresponding EC-type examination certificates. (The sensor type is stated on the connection plate of
GB the pressure gauge.)
Suitable switch amplifiers are e.g.:
Circuit |
Sensor type |
Model designation |
EC-type exami- |
WIKA- |
(s. Ex-certific.) |
|
Fa. Pepperl & Fuchs |
nation certificate |
Model |
|
|
|
|
|
|
|
|
|
|
Model 1 |
standard |
KFD2-SR2-Ex1 |
PTB 00 ATEX 2080 |
904.31 |
|
standard |
KFD2-SR2 Ex2 |
PTB 00 ATEX 2080 |
904.32 |
Model 2 |
standard |
KFA6-SR2-Ex1 |
PTB 00 ATEX 2081 |
904.28 |
|
standard |
KFA6-SR2-Ex2 |
PTB 00 ATEX 2081 |
904.29 |
|
SN-sensors |
KFD2-SH-Ex1 |
PTB 00 ATEX 2042 |
904.33 |
|
SN-sensors |
KHA6-SH-Ex1 |
PTB 00 ATEX 2043 |
904.30 |
Electromagnetic compatibility
EMC to EN 60 947-5-2.
The instruments are to be protected against strong electromagnetic fields.
Adjusting red set pointers
The setting of the set point is achieved using the adjustment lock in the window with the aid of the adjustment key (part of the scope of supply; found in standard instruments on the side of the terminal box).
Red set pointer
Removable
adjustment key
Adjustment lock
The set point indicators for the switch contacts are freely adjustable over the full scale range. For reasons of switching accuracy and long life of the mechanical measuring system, the switching points should be between 10 % and 90 % of the measuring range.
2064246 07/2009 GB/D/F
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX
5. Commissioning ... 8. Disposal
5. Commissioning |
|
|
|
During the commissioning process pressure peaks must be avoided at all |
|
||
costs. Open the shut-off valves slowly. |
|
||
GB |
|||
|
|
||
|
|
|
|
|
|
||
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. For cleaning, the instruments should be disconnected from the mains |
|
||
power supply. It must be ensured that all the parts are dry before the power is |
|
||
switched on again. |
|
||
Any residual pressure medium contained in the pressure element may be |
|
||
hazardous or toxic. This should be taken into account when handling and |
|
||
storing pressure gauges which have been removed. |
|
||
|
|
||
7. Repairs |
|
|
|
Repairs are only to be carried out by the manufacturer or appropriately trained |
|
||
personnel. |
|
||
For further details see WIKA Data Sheet AC 08.01 or the data sheet for the |
|
||
respective basic gauge. |
|
||
2064246 07/2009 GB/D/F
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.
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX
Appendix 1
GB
2064246 07/2009 GB/D/F
10 |
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX |
|
|
Appendix 2
GB
2064246 07/2009 GB/D/F
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX |
11 |
|
|
Appendix 2
GB
2064246 07/2009 GB/D/F
12 |
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX |
|
|
Appendix 2
GB
2064246 07/2009 GB/D/F
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX |
13 |
|
|
Appendix 3
GB
2064246 07/2009 GB/D/F
14 |
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX |
|
|
Appendix 3
GB
2064246 07/2009 GB/D/F
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX |
15 |
|
|
Appendix 3
GB
2064246 07/2009 GB/D/F
16 |
WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX |
|
|
Loading...