Mechatronic pressure measurement
Compact pressure switch
Ex protection EEx-­d, IP 65, for high pressure ranges
Model PCA-­HP
WIKA data sheet PV 33.33
Applications
Ϯ Pressure monitoring and direct switching of electrical loads
Ϯ For measuring points with limited space
Ϯ For gaseous and liquid, aggressive and highly viscous or contaminated media, also in aggressive ambience
Ϯ ÈŹ»ÉɿĺËÉÊÈÏƓ¹¾»Ã¿¹·ÂƭÆ»ÊÈÅƖ¹¾»Ã¿¹·ÂƑÅÄƖ·Äº
ÅŮɾÅÈ»ƑÊ»¹¾Ä¿¹·Â½·É»ÉƑ»ÄÌ¿ÈÅÄûÄÊ·ÂÊ»¹¾ÄÅÂŽÏƑ
machine building and general plant construction, water treatment, pharmaceutical industry
Ϯ Ignition protection type GAS Ex-­d DUST Ex-­tD Gr. II ·ÊƔʸƭʹ
Special features
Ϯ ·É»Ų·Ã»ÆÈÅż»Ä¹ÂÅÉËÈ»
Ϯ Ingress protection IP 65, NEMA 4
Ϯ ø¿»ÄÊÊ»ÃƻȷÊËÈ»ƖʻʷƔƔƔ̊ʿʼͮ
Compact pressure switch model PCA-­HP
Ϯ 1 switch point, SPDT or DPDT with a high contact rating żËÆÊÅʸʼƭʹʹʷ
Ϯ »ÊʿĽȷĽ»ÉËÆÊÅʽʷʷ¸·ÈƑ÷ÎƔÊ»ÉÊÆÈ»ÉÉËÈ»ËÆÊÅ
ʾʷʷ¸·È
Description
¾»É»¾¿½¾ƖÇ˷¿ÊÏÆÈ»ÉÉËÈ»ÉͿʹ¾»É¾·Ì»¸»»ÄÉÆ»¹¿Ű¹·ÂÂÏ
developed for safety-­critical applications with limited space. ¿½¾Ç˷¿ÊϷĺÆÈź˹Ê÷Ä˼·¹ÊËȿĽÊÅˀʷʷʸƓʹʷʷʷ
ensures reliable monitoring of your plant. In production, the switches are traced by quality assurance software at every ÉʻƷĺÉ˸ɻÇË»ÄÊÂÏ·È»ʸʷʷ̈Ê»ÉÊ»ºƔ
The gauge adapters are made of stainless steel, the diaphragm is, depending on the measuring range and the sensor code, made of Inconel or coated with NBR or PTFE. Each switch family is available in IP 65, Ex-­ia or Ex-­d versi-­
ÅÄÉƺÎƖ¿·É»»Ãź»ÂƖƑº·Ê·É¾»»ÊʺʺƔʺʹƻƔ
ÄÅȺ»ÈÊÅ»ÄÉËÈ»·ÉŲ»Î¿¸Â»ÅƻȷʿÅÄ·ÉÆÅÉÉ¿¸Â»Ƒʾ»
pressure switches are equipped with micro switches, which ÷Á»¿ÊÆÅÉÉ¿¸Â»ÊÅÉͿʹ¾·Ä»Â»¹ÊÈ¿¹·ÂÂÅ·ºÅ¼ËÆÊÅʸʼƭ ʹʹʷº¿È»¹ÊÂÏƔÅÈÉ÷»ȹÅÄÊ·¹ÊȷʿĽÉƑÉ˹¾·É¼ÅÈ
·ÆÆ¿¹·Ê¿ÅÄÉƑ·È½ÅĽ·ÉŰ»ºÃ¿¹ÈÅÉͿʹ¾»ÉͿʾ
gold-­plated contacts can be selected as an option. For two separate circuits the switches are also available in the Ì»ÈÉ¿ÅÄƺºÅ˸»¹¾·Ä½»ƖÅ̻ȹÅÄÊ·¹ÊƻƔ
By using a diaphragm with an antagonist spring or a piston system, the model PCA pressure switch is extremely robust and guarantees optimal operating characteristics. º·Ê·É¾»»ÊʺʺƔʺʺ̓ʸʸƭʹʷʸʷ
Data sheets showing similar products:
Compact pressure switch, ignition protection type EEx-­d; model PCA; see data sheet PV 33.31
ÅÃÆ·¹ÊÆÈ»ÉÉËÈ»ÉͿʹ¾Ƒ¿½Ä¿Ê¿ÅÄÆÈÅÊ»¹Ê¿ÅÄÊÏÆ»ÎƖ¿·ƒÃź»ÂƒÉ»»º·Ê·É¾»»ÊʺʺƔʺʷ
ÅÃÆ·¹ÊÆÈ»ÉÉËÈ»ÉͿʹ¾Ƒ¼ÅȾ¿½¾ÆÈ»ÉÉËÈ»Ƒ¿½Ä¿Ê¿ÅÄÆÈÅÊ»¹Ê¿ÅÄÊÏÆ»ÎƖ¿·ƒÃź»ÂƖƒÉ»»º·Ê·É¾»»ÊʺʺƔʺʹ
Page 1 of 4
Standard version
Housing
Aluminium, epoxy resin coated,
case cover with screw-­type cover, due to anti-­twist device secured against unauthorised intervention
Ingress protection
ʽʼÆ»ÈʽʷʼʹˀƭÂʼʹˀ
Operating temperature
ø¿»ÄÊƓƖʻʷƔƔƔ̊ʿʼͮ
Medium:
Sensor cod»ƺͿʾƖȿĽƻ: ʷƔƔƔ̊ʹʷʷͮ
Sensor cod»ƺͿʾƖȿĽƻƓ ƖʸʷƔƔƔ̊ʸʸʷͮ
»ÄÉÅȹź»
Ɠ
ƖʻʷƔƔƔ̊ʸʻʷͮ
Switch contacts
Code Type
Electrical rating (resistive load) 3)
AC
DC
1
SPDT Silver contacts
15 A, ʹʹʷ ʹƑʹʻ
ʷƔʼ, ʸʹʼ
ʹ ʹƻ
3
DPDT Silver contacts
SPDT Silver contacts
¿Ä»Èʽ·ÉŰ»º
5 A, ʹʹʷ ʷƔʼ, ʹʻ
15 A, ʹʹʷ ʹƑʹʻ
ʷƔʼ, ʹʹʷ
4 ʹƻ
DPDT Silver contacts
hermetically sealed in air
SPDT Gold-­plated 5
Process connection
Ê·¿Ä»ÉÉÉÊ»»ÂƑÂÅÍ»ÈÃÅËÄÊƺƻ
̂ƺ¼»Ã·Â»ƻ
Design
TambƓƖʺʷƔƔƔ̊ʾʷͮ
contacts
¿Ä»Èʽ·ÉŰ»º
ʷƔʹʼƑʹʹʷ
5 A, ʹʹʷ
ʷƔʼ, ʹʻ
1 A, ʹʹʷ
ʷƔʼ, ʹʻ
TambƓƖʺʷƔƔƔ̊ʾʷͮ
Measuring system
Sensor code P: Piston system
Sensor code G: Diaphragm with antagonist spring
Wetted parts
ʹƻ ¿ÃËÂÊ·Ä»ÅËÉÊÈ¿½½»È¿Ä½Í¿Ê¾¿Äʹ̈żÉÆ·Ä
ʺƻ ÄÂÏʾ»underlined data are shown on the product label
Repeatability
̞ʸ̈żÉÆ·Ä
Sensor code Measuring system
P
G
Stainless steel 316, sealing FPM ʸƻ
·ÉÊ»ÂÂÅÏʹʾʽ
ʸƻ ÆÊ¿ÅÄͿʾɻ·Â¿Ä½
Setting ranges, max. test pressure, max. switch hysteresis
Sensor Setting range
code
in bar
P, G
P, G
P, G
P, G
P, G
8 ... 40
16 ... 100
40 ... 250
80 ... 400
100 ... 600
·½»ʹżʻ
Working range
in bar
ʷƔƔƔ
ʷƔƔƔ
ʷƔƔƔ
ʷƔƔƔ
ʷƔƔƔ
ʸʷʷ
ʹʼʷ
ʻʷʷ
ʽʷʷ
ʽʷʷ
Max. test pressure
in bar
ʻʷʷ
ʻʷʷ
ʽʷʷ
ʽʷʷ
ʾʷʷ
Max. switch hysteresis
Contact code
Contact code
Contact code
1, 3 and 5
2
4
ʹ¸·È
5 bar
ʸʹ¸·È
ʹʷ¸·È
ʺʷ¸·È
4 bar
5 bar
ʹʷ¸·È
ʹʷ¸·È
ʺʷ¸·È
16 bar
ʹʷ¸·È
ʿʷ¸·È
ʿʷ¸·È
ʸʹʷ¸·È
º·Ê·É¾»»ÊʺʺƔʺʺ̓ʸʸƭʹʷʸʷ
Switch points
The switch points can be set to your requirements, free-­of-­
charge.
Please specify:
Switch point, switching direction for each contact (e.g. switch ÆÅ¿ÄÊʸƓʷƔʼ¸·ÈƑ¼·Â¿ĽƑÉͿʹ¾ÆÅ¿ÄÊʹƓʺ¸·ÈƑȿɿĽƻ
With two micro switches, the switch points can be set independently of each other.
After unscrewing the case cover, switch point adjustment can be made using the adjustment screw. The switch point is settable within the entire measuring range with the following general rule:
Ϯ »ŰĻʾ»Ì·ÂË»̏ʹÎȻƻ·Ê·¸¿Â¿ÊÏ̊ÉͿʹ¾¾ÏÉʻȻɿÉ
Ϯ If the pressure is rising, the switch point should be set ¸»ÊÍ»»ÄƺÿÄƔ̊Ì·ÂË»ƻËÆÊÅ÷ÎƔżʾ»É»ÊʿĽȷĽ»Ɣ
Ϯ If the pressure is falling, the switch point should be set ¸»ÊÍ»»ÄÿÄƔËÆÊÅƺ÷ÎƔƖÌ·ÂË»ƻżʾ»É»ÊʿĽȷĽ»Ɣ
Example:
»ÊʿĽȷĽ»Ɠ ʷƔƔƔʸ¸·ÈͿʾÅÄ»ÉͿʹ¾¹ÅÄÊ·¹Ê
»Æ»·Ê·¸¿Â¿ÊÏƓ ʸ̈żʸ¸·È̏ʸʷø·È
Ϳʹ¾¾ÏÉʻȻɿÉ̏ʸʼø·ÈƺÉ»»Ê·¸Â»É»ÊʿĽȷĽ»Éƻ
·ÂË»̏ʹÎʸʷø·È̊ʸʼø·È̏ʺʼø·È
If the pressure is rising, the switch point should be set between 35 mbar up to 1 bar.
If the pressure is falling, the switch point should be set ¸»ÊÍ»»ÄʷËÆÊÅˀʽʼø·ÈƔ
For optimal performance we suggest the switch point lies ¸»ÊÍ»»Äʹʼ̈·Äºʾʼ̈żʾ»É»ÊʿĽȷĽ»Ɣ
Options
Ϯ Other process connection, also with adapter
Ϯ Case made of stainless steel 316
Ϯ ¿È¿Ä½ʺƭʻƑ
ʸƭʹÅÈʹʷÎʸƔʼƺ¼»Ã·Â»ƻ
Ϯ Cable gland on request
Ϯ ʹͲÆ¿Æ»ƖÃÅËÄʿĽÁ¿ÊƺͿʾ¹Â·ÃƿĽ»Â»Ã»ÄÊƻ
Ϯ »ÈÉ¿ÅļÅÈÅŮƖɾÅÈ»ÅÈÊÈÅÆ¿¹·Â¿É»º·ÆÆ¿¹·Ê¿ÅÄʻƻ
Ϯ Version for applications to NACE ʻƻ ʼƻ
Ϯ Version for ammonia applications ʻƻ
Ϯ Oil and grease free version for oxygen applications
Ϯ Accessories: Ɩ
Ɩ
È»ÉÉËÈ»½·Ë½»Ì·ÂÌ»ÉÃź»ÂˀʸʷƔʸʸƑÉ»»º·Ê·É¾»»Ê ʷˀƔʷʹ ·ÈÉÊŹÁÌ·ÂÌ»ÉÃź»ÂˀʸʷƔʿʸƑÉ»»º·Ê·É¾»»Ê ʷˀƔʸʿ
ʻƻ Ä»Èʽ·ÉŰ»º¹ÅÄÊ·¹ÊÉÈ»ÇË¿È»º
ʼƻ ÄÂϿĹÅÄÄ»¹Ê¿ÅÄͿʾɻÄÉÅȹź»
ÆÆÈÅÌ·Âɷĺ¹»ÈÊ¿Ű¹·Ê»É
Ϯ ʹÌ»ÈÉ¿ÅÄʻƻ
Ϯ Ɩ¹»ÈÊ¿Ű¹·Ê»
Ϯ »Éʹ»ÈÊ¿Ű¹·Ê»dždžƺ¹ÅÄŰÈ÷ʿÅÄżʾ»ÉͿʹ¾¿Ä½
·¹¹ËÈ·¹Ïƻ
Ϯ »ÉÊÈ»ÆÅÈÊdždžƺʺƖʿû¿ÉʿĽżʾ»ÉͿʹ¾ÆÅ¿ÄÊƑÈ»ÇË¿È»É
ÉͿʹ¾ÆÅ¿ÄÊÉÆ»¹¿Ű¹·Ê¿ÅÄƻ
Ϯ ·Ê»È¿·Â¹»ÈÊ¿Ű¹·Ê»ʺƔʸÆ»Èʸʷʹʷʻ
Electrical connection
½ NPT female, cable connection using internal terminal block, ground connection using internal and external screw, max. ground cable cross-­section 4 mmʹ
È»ÉÉËÈ»ÉͿʹ¾¹»ÈÊ¿Ű»ºÆ»ÈƓ
Ϯ È»ÉÉËÈ»»ÇË¿ÆûÄʺ¿È»¹Ê¿Ì»ˀʾƭʹʺƭƺƑ·ÄÄ»ÎʸƑ ¹·Ê»½ÅÈÏƑÉ·¼»ÊÏ·¹¹»ÉÉÅÈ¿»ÉƑÃźË»̊ƻ
Ϯ ÅÍÌÅÂÊ·½»º¿È»¹Ê¿Ì»ʾʺƭʹʺ·Äºˀʺƭʽʿ
Dielectric strength
·¼»ÊϹ·ÉÉƺʽʸʹˀʿƖʹƓʸˀˀʾƖʷʽƻ
Mounting Direct or wall mounting
Preferred connection location of the process connection should be below. Alternatively the instrument can be installed so that access to internals is from front of the enclosure and the electrical connection is placed on side.
Weight
·ÆÆÈÅÎƔʸƔʷÁ½
º·Ê·É¾»»ÊʺʺƔʺʺ̓ʸʸƭʹʷʸʷ
Page 3 of 4
Dimensions in mm Process connection
Cable gland
Ordering information
ź»Âƭ·É»ƭ»ÄÉÅȹź»ƭͿʹ¾¹ÅÄÊ·¹ÊÉͿʾ̻ÈÉ¿ÅÄƭ»ÊʿĽȷĽ»ƭÈŹ»ÉɹÅÄÄ»¹Ê¿ÅÄƭ»¹ÊÈ¿¹·Â¹ÅÄÄ»¹Ê¿ÅÄƭͿʹ¾
ÆÅ¿ÄÊƺÉƻƭͿʹ¾¿Ä½º¿È»¹Ê¿ÅÄƺÉƻƭÆÊ¿ÅÄÉ
ηÃÆ»ƓʹʸƖʿƭʻʷ¸·ÈƖʸƭʻͲƖƖʸƭʹͲƖ
¾»ÉÆ»¹¿Ű¹·Ê¿ÅÄɽ¿Ì»Ä¿Äʾ¿ÉºÅ¹ËûÄÊÈ»ÆȻɻÄÊʾ»Éʷʻż»Ä½¿Ä»»È¿Ä½·Êʾ»Ê¿Ã»Å¼Æ˸¿ɾ¿Ä½Ɣ
»È»É»È̻ʾ»È¿½¾ÊÊÅ÷Á»Ãź¿Ű¹·Ê¿ÅÄÉÊÅʾ»ÉÆ»¹¿Ű¹·Ê¿ÅÄɷĺ÷ʻȿ·ÂÉƔ
º·Ê·É¾»»ÊʺʺƔʺʺ̓ʸʸƭʹʷʸʷ
ʸʸƭʹʷʸʷ
Page 4 of 4
WIKA Alexander Wiegand SE & Co. KG
»ηĺ»ÈƖ¿»½·ÄºƖÊÈ·Ņ»ʺʷ
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»È÷ÄÏ
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ƺ̊ʻˀƻˀʺʾʹƭʸʺʹƖʷ
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ƺ̊ʻˀƻˀʺʾʹƭʸʺʹƖʻʷʽ
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