Honeywell VPX MICRO SWITCH VPX Series Valve Position Indicator Installation Guide

Honeywell VPX MICRO SWITCH VPX Series Valve Position Indicator

INSTALLATION INSTRUCTIONS

Multiple language versions of installation instructions and other documents are available on Honeywell’s website. To access:

1. Go to http://sensing.honeywell.com/hazardousareaswitches
2. Select the product’s instructions from the installation instruction section.

WARNING  PERSONAL INJURY

• DO NOT USE these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury.
  Failure to comply with these instructions could result in death or serious injury.

WARNING IMPROPER CONDUIT THREAD USE

• DO NOT USE any other conduit thread than the one identified on the product. Verify that the mating threaded fitting is identical with the conduit thread marked near the conduit opening (see Figure 6).
  Failure to comply with these instructions could result in death or serious injury.
• To maintain ATEX/IECEx protection methods, an Ex cable gland or Ex conduit sealing device, rated Ex db IIC Gb IP66, Ex tb IIIC Db IP66 shall be installed. For Intrinsically Safe models, cable glands must have a minimum service temperature of 80oC.
• Enclosure contains aluminum. Care must be taken to avoid hazard due to impact or friction
• To reduce the risk of ignition in hazardous atmospheres, conduit runs must have a sealing fitting connected within 18 inches of enclosure.
• Substitution of components may impair intrinsic safety.

OPENING PRODUCTS HAZARD

• DO NOT OPEN these products when energized or in a flammable gas atmosphere.
  Failure to comply with these instructions could result in death or serious injury.

WARNING RISK TO LIFE OR PROPERTY

• Never use this product for an application involving serious risk to life or property without ensuring that the system as a whole has been designed to address these risks and that this product is properly rated and installed for the intended use within the overall system.
  Failure to comply with these instructions could result in death or serious injury.

WARNING 

• This equipment has a non-conducting coating and may generate an ignition-capable level of electrostatic charges under certain extreme conditions. The user should ensure that the equipment is not installed in a location where it may be subjected to external conditions (such as high pressure steam) which might cause a build up of electrostatic charges on non-conducting surfaces. Additionally, cleaning of the equipment should be done with a damp cloth.

GENERAL INFORMATION

The VPX Valve Position Indicator is designed specifically for use in potentially hazardous locations where explosive gases or dusts may be present. To comply with explosion proof requirements the VPX has flame paths within the housing, which cool any explosion below the ignition temperature before it reach explosive gases or dusts in the surrounding atmosphere. Flame paths on the VPX are 1) an extended shaft between the switch cavity and head and 2) the cover-housing flange joint.
The equipment has a non-conducting coating and may generate an ignition-capable level of electrostatic charges under certain conditions. The user should ensure that the equipment is not installed in a location where it may be subjected to external conditions (such as high pressure steam) that might cause a build up of electrostatic charges on non-conducting surfaces. Additionally, cleaning of the equipment should be done with a damp cloth.

Figure 1. VPX Valve Position Indicator

ENVIRONMENTAL PROTECTION

The VPX Valve Position Indicator is often ideal for outdoor use or in po-tentially adverse environments. The enclosure is sealed for protection against corrosion, water, dust and oil as defined in UL 50E to enclosure types 4, 4X, 6 and 13 as well as to IP66 and IP67 as defined in IEC 60529. An ingress protection rating of IP66 was confirmed according to IEC 60079-0 along with the hazardous location approvals. A rating of IP67 was confirmed by Honeywell according to IEC 60529.

HAZARDOUS LOCATION RATINGS

IECEx UL 16.0102X DEMKO 16 ATEX 1733X
Compliance with the Essential Health and Safety Requirements has been assured by compliance with:

• CENELEC EN 60079-0 EXPLOSIVE ATMOSPHERES PART 0: EQUIPMENT – GENERAL REQUIREMENTS
• CENELEC EN 60079-1 EXPLOSIVE ATMOSPHERES – PART 1: EQUIPMENT PROTECTION BY ENCLOSURES “d”
• CENELEC EN 60079-11 EXPLOSIVE ATMOSPHERES – PART 11: EQUIPMENT PROTECTION BY INTRINSIC SAFETY “I”
• CENELEC EN 60079-31 EXPLOSIVE ATMOSPHERES – PART 31: EQUIPMENT DUST IGNITION PROTECTION BY ENCLOSURE “T”
• IEC 60079-0 EXPLOSIVE ATMOSPHERES. PART 0: EQUIPMENT GENERAL REQUIREMENTS
• IEC 60079-1 EXPLOSIVE ATMOSPHERES. PART 1: EQUIPMENT PROTECTION BY ENCLOSURES “d”
• IEC 60079-11 EXPLOSIVE ATMOSPHERES – PART 11: EQUIPMENT PROTECTION BY INTRINSIC SAFETY “I”
• IEC 60079-31 EXPLOSIVE ATMOSPHERES. PART 31: EQUIPMENT DUST IGNITION PROTECTION BY ENCLOSURE “T”
• EUROPEAN DIRECTIVE ON EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES (2014/34/EU) commonly referred to as the ATEX Directive.
• UL 1203 Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations
• CSA C22.2 No. 30 Explosion-proof enclosures for use in class I hazardous locations
• CSA C22.2 No. 25 Enclosures for Use in Class II Groups E, F and Hazardous Locations

VALVE POSITION INDICATOR FOR HAZ. LOCATIONS VPX SERIES

The explosion-proof ratings per these standards are:

Honeywell ensures all the elements, requirements and provisions ad-opted comply with the product’s Ex certificate and technical documen-tation. As detailed in section 5.1 of EN/IEC 60079-1 the requirements of the flamepath joints are met as follows:

North America Hazardous location ratings per UL 1203:2013 and CSA C22.2 No. 30:2003 and CSA C22.2 No. 25:1966 are:

• Division 1, Class I, Groups B, C, D
• Division 1, Class II, Groups E, F, G

NEPSI AND CCC CERTIFICATION
(NEPSI AND CCC DO NOT APPLY TO VPX1E PART NUMBERS)

1. Ex d ⅡC T6 Gb，Ex tD A21 IP66 T85℃ Ta -40℃ to +50℃ (Switch Code 4A or 4B) Ta -40℃ to +60℃ (Switch Code 2A or 2B)
2. Ex ia ⅡC T4 Ga，Ex iaD 20 T135 Ta -40℃ to +80℃ (Switch Code 2C)

SAFETY INTEGRITY LEVEL (SIL)

SIL 3 per IEC 61508-2 as evaluated by Sira Certification Service.

SAFETY FUNCTION
The safety function of the certified equipment is:
‘To provide indication of a monitored valve position upon rotation of the shaft via switches or proximity sensors and a visual indicator.’

UNDETECTABLE DANGEROUS FAILURE
‘If an undetected dangerous failure of the VPX Valve Position Indicator were to occur it would fail to respond and would give an incorrect indication of valve position. However this would only ever occur if both the switches or sensors and visual indicator were to have failed’.

PROOF TEST REQUIREMENTS
A maximum proof test interval of 1 year is recommended for the VPX products. The proof test procedure must be carried out by a competent person who is trained in safety operations and is familiar with the VPX product. A generic proof test procedure can be found in Table 2, how-ever depending on application may vary.

MATERIALS OF CONSTRUCTION
The following materials are used in the VPX Valve Position Indicator: aluminum housing, buna-N seals, polycarbonate indicator and indicator cover and stainless steel shaft and fasteners. The suitability of these materials for the application environment is solely up to the customer.

ELECTROMECHANICAL SNAP ACTION SWITCHES
The electrical ratings of the VPX with snap-action switches are

• 15 A @ 150 Vac, 10 A @ 250 Vac, 0.5 A @ 250 Vdc

VALVE POSITION INDICATOR FOR HAZ. LOCATIONS VPX SERIES

Notes: 1 HFT: Hardware Fault Tolerance; 2 SC: Systematic Capability; 3 PTI: Proof Test Interval; 4 PT: Product Type

Figure 3. Intrinsically Safe Zone Diagram

INTRINSICALLY SAFE PROXIMITY SWITCHES

A VPX equipped with proximity switches is considered intrinsically safe when used with an appropriate switching amplifier, also referred to as an associated apparatus, which complies with EN 60947-5-6 or IEC 60947-5-6. The amplifier contains a dc source to supply the control circuit and is controlled by the variable internal resistance of the prox-imity switch. This amplifier is placed outside of the hazardous area. A diagram of the typical installation is shown in Figure 3.
Cable capacitance, Ccable, plus intrinsically safe equipment capaci-tance, Ci, must be less than the marked capacitance, CO, shown on any associated apparatus used. The same applies for inductance (Lcable, Li and Lo, respectively). Where the cable capacitance and inductance per foot are not known, the following values shall be used:
Ccable = 200 pF/m., Lcable = 1 mH/m.
The associated apparatus output current must be limited by a resis-tor such that the output voltage-current plot is a straight line drawn between open-circuit voltage and short-circuit current. The associated apparatus must be installed in accordance with its manufacturer’s control drawing. When required by the manufacturer’s control drawing, the associated apparatus must be connected to a suitable ground elec-trode per local installation codes, as applicable. The resistance of the ground path must be less than 1 Ohm. Associated apparatus must not be used in combination unless permitted by the associated apparatus certification. Control equipment must not use or generate more than

VALVE POSITION INDICATOR FOR HAZ. LOCATIONS VPX SERIES

250 V rms or dc with respect to earth. Where multiple circuits extend from the same piece of intrinsically safe equipment to the associated apparatus, they must be installed in separate cables or in one cable having suitable insulation. Installation must be done in accordance with all local codes.

ATTENTION 

• The following additional previous editions of Standards noted under the “Standards” section of this Certificate where applied to integral Components as itemized below. There are no significant safety related changes between these previous editions and the editions noted under the “Standards” section.
• Inductive Proximity Sensor, Part No. NCB2-V3-N0 manufactured by Pepperl+Fuchs GmbH IEC 60079-0, IEC 60079-11

INSTALLATION INSTRUCTIONS

1. DO NOT OPEN the VPX when energized or in a flammable atmo-sphere.
2. Mount VPX using (4) M6 x 1 screws or (4) M8 x 1.25 screws into the tapped holes at the base of the product. Mounting dimension drawings for the hole locations are shown in Figure 17. Fasten M6 screws to 18 Nm ±2 Nm [13.3 ft-lb ±1.5 ft-lb]. Fasten M8 screws to 6 Nm ±1 Nm [53 in-lb ±9 in-lb]. Accessory brackets are avail-able that mate directly to the base of the VPX. Proper alignment of the shaft of the VPX to the mating valve actuator or coupling is essential in order to ensure smooth rotary motion of the VPX shaft as well as to avoid premature wear.
3. After mounting the VPX, remove the (4) socket head cap screws that fasten the cover to the base using a 6 mm hex wrench.
4. Remove the cover and refer to circuit diagram on the inside of the cover, or refer to document 32325422. The diagram depicts the available connections of each switch inside the VPX. A terminal strip is labeled for each switch connection.
5. For installations utilizing the UL or cUL certifications, use Class I, Division 1, Class II, Division 1 and Class III wiring methods in accordance with the National Electrical Code (NEC), Canadian Electrical Code (CEC), or other code(s) where applicable. For in-stallations utilizing the ATEX/IEC Ex certifications, use applicable requirements from EN/IEC 60079-14, EN/IEC 60079-17 and EN/IEC 60079-19 as required by local codes and regulations.
6. Insert the wires through the conduit openings so that they are accessible inside the VPX. Ensure enough wire is available to reach each terminal strip location.
7. Wire should be stripped back to 4 mm ±1 mm [0.16 in ±0.04 in]. Wire sizes should be chosen to comply with local codes and practices and capable of carrying the rated load. The terminal strip will accept 0,1 mm2 to 4 mm2 [26-12 AWG] wire. Insert the stripped ends of the wire to each connection and tighten the screws to
   0,4 Nm ±0,1 Nm [3.5 in-lb ±1 in-lb].
8. Ground screws are located both inside and outside the enclo-sure, suitable for wire sizes up to 4 mm2 [12 AWG]. Fasten all M4 grounding screws to 1,6 Nm ±0,3 Nm [14 in-lb ±2.7 in-lb]. The internal grounding terminal must be used for the equipment grounding connection and the external terminal is for supplementary bonding connection where local codes or authori-ties permit or require such connections. See Figure 7.
9. Spare terminal strip positions are available for making junction connections for accessories such as pneumatic solenoid valves. The terminal strip will accept 0,5 mm2 to 4 mm2 [20-16 AWG] wire. Insert the stripped ends of the wire to each connection and tighten the screws to 0,4 Nm ±0,1 Nm [3.5 in-lb ±1 in-lb].
10. For installations utilizing the UL or cUL certifications, install conduit plugs in unused openings. For installations utilizing the ATEX/IEC Ex certifications, install blanking elements rated Ex db IIC Gb IP66 and Ex tb IIIC Db IP66 in unused openings. Conduit size is marked on the inside of the housing near the conduit openings. See Figure 6.
11. For installation utilizing the UL or cUL certifications, install a conduit seal suitable for Class I Groups B, C and D or Class II Groups E, F or G within 450 mm [18 inches] of every conduit opening. For installations utilizing the ATEX/IEC Ex certifications, if an Ex conduit sealing device is used, it must be installed immediately at each entry. If an Ex cable glad is used, it must be installed per the manufacturer’s instructions.
12. It may be desirable to adjust the cams of the product at this point to set the switch points. See the adjustment, repair and maintenance section for instructions on how to adjust the cams.
13. Reassemble cover, making sure to align the arrows on the cover and the base, per Figure 9. Fasten the (4) socket head cap screws that fasten the cover to the base using a 6 mm hex wrench to 18 Nm ±2 Nm [13.3 ft-lb ±1.5 ft-lb]. Screw minimum yield strength: 205 MPa. Confirm with a shim or “feeler” gauge that the gap between the cover and the base does not exceed 0,038 mm [0.0015 in].
    CAUTION Cover joints must be cleaned before replacing the cover. Use care when reassembling the cover in order to prevent damage to the switch assembly or to the flange surface.
14. Perform functional tests.
15. Actuate the VPX switch several times to ensure smooth actuation.

VISUAL INDICATOR ADJUSTMENT

The visual indicator can be adjusted in two ways, either by rotating the window through which the indicator is visible or actually repositioning the indicator to swap the OPEN and CLOSED positions.
To rotate the window, loosen the two set screws of the indicator cover (See Figure 10) by 1 turn each using a 2 mm hex wrench, rotate the cover and then tighten the set screws one turn again until the face of the set screw is flush to the cover. Tighten to 0,15 Nm [1.3 in-lb] max. Do not over tighten these screws as it may impact the ingress protection of this cover.

To reposition the indicator, loosen the two set screws of the indicator cover by 4 ½ turns using a 2 mm hex wrench and lift this cover off the VPX. Next, lift the indicator off and rotate it to the desired orientation and position it back in place. The indicator is adjustable in 90° increments. Finally, reposition the indicator cover to the desired orientation and tighten the set screws by 4 ½ turns again until the face of the set screw is flush to the cover. Tighten to 0,15 Nm [1.3 in-lb] max. Do not over tighten these screws as it may impact the ingress protection of this cover.

CAM ADJUSTMENT

The switch points of each switch are factory set relative to the shaft position. See VPX Series Chart 1 drawing for these set points, as they vary by model. The switch points can be adjusted by repositioning the cams inside the product.

WARNING: DO NOT OPEN the VPX when energized or in a flammable atmosphere

1. DO NOT OPEN the VPX when energized or a flammable atmosphere.
2. To access the cams, remove the (4) socket head cap screws that fasten the cover to the base using a 6 mm hex wrench.
3. Each cam mates with the shaft disc. Move cam axially to disen-gage teeth on wheel from teeth on shaft disc.
4. Turn cam to desired position. Each notch on the shaft disk represents an operating point change of 4°. Arrows on the cam indicate the high point as a reference for alignment to the switch or to align one cam with another.
5. In versions that use the snap action switches, you will hear an audible click with the switch actuates or releases.
6. When cam has been rotated to desired location, release cam to engage with mating shaft disc.
   CAUTION: During the cam adjustment it may be desirable to remove the spacer part (see Figure 14). Make sure to reassemble this piece after adjustment as it is a necessary part to ensure the maximum internal volume of the VPX meets agency requirements.
7. When cam adjustment is complete reassemble cover and torque  the (4) socket head cap screws that fasten the cover to the base using a 6 mm hex wrench to 18 Nm ±2 Nm [13.3 ft-lb ±1.5 ft-lb].

SPECIAL CONDITIONS FOR SAFE USE

• The Installation Instructions (this document 32312068) state the dimensions of all joints to inform the end user.
• Fasteners for maintaining the enclosure integrity have a yield stress strength of 205 MPa.

LEVER POSITIONING

Various levers can be attached to the VPX products equipped with the knurled shaft option. See 7CX Series Chart 1, 2 and 3 drawings for a list of lever accessories. To install or reposition a lever, loosen the screw with a 9/64 inch hexagon key wrench, move the lever to the desired po-sition and securely tighten the screw until the “teller tab” can no longer be moved by hand. Then tighten the screw another 1/8 to 1/4 turn to assure that the lever i›s tight on the shaft. Hexagon key wrenches are provided in adjusting tool set LSZ4005 for this purpose.

To order replacement levers, order the part number which is metal stamped on either the lever or the hub. Only non-sparking levers can be used to retain the explosion-proof properties.

ACCESSORIES

A mounting bracket kit is available as an accessory, Honeywell part number VPZB1.

In addition, conduit plugs are available in the following sizes: 

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Newhouse Industrial Estate, Motherwel1, Lanarkshire, MLI 5SB, Scotland, United Kingdom.

Registered Ofice:
Honeywell House, Arlington Business Park, Bracknell, Berkshire, R12 1EB
Tel.: +44 (0)1698 481000
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EU Declaration of Conformity
Honeywel Control Systems Ltd. hereby declare that the products identified below conform to the essential requirements of the EU Directive(s) listed below and that the products supplied are in conformity with the type described in any EU Type Examination Certificate (EU TEC) identified below.

Manufacturer:
Honeywell nternational, MICRO SWITCH Division,
Chicago & Spring Streets, Freeport, Ilinois,
IL 61032-4353, USA

Product:
VPX Series Valve Position Indicator Directive (Amendments) Conformity Details

ATEX 2014/34/EU EN IEC 60079-0:2018 EN 60079-1:2014 & EN 60079-11:2012

Standards applied:
EN 60079-31:2014
EU TEC No:
DEMKO 16ATEX1733 Xx

Notified Body:
votified Body ID 0539
UL International Demko A/S
Borupvang 5A, 2750 Ballerup, Denmark
ATEX Markings
II 2 GD Ex db IIC T6 Gb, Ex tb IIIC T85C Db, II 1 GD Ex ia IIC T4 Ga, Ex ia IC 135C Da

WARRANTY/REMEDY

Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship during the applicable warranty period. Honeywell’s standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgment or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, without charge those items that Honeywell, in its sole discretion, finds defective. The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages.
While Honeywell may provide application assistance personally, through our literature and the Honeywell web site, it is buyer’s sole responsibility to determine the suitability of the product in the application.
Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this writing. However, Honeywell assumes no responsibility for its use.

WARNING MISUSE OF DOCUMENTATION

• The information presented in this product sheet is for reference only. Do not use this document as a product installation guide.
• Complete installation, operation and maintenance information is provided in the instructions supplied with each product.
• Failure to comply with these instructions could result in death or serious injury.

FOR MORE INFORMATION
Honeywell Advanced Sensing Technologies services its customers through a worldwide network of sales offices and distributors. For application assistance, current specifications, pricing or the nearest Authorized Distributor, visit our website or call:

• USA/Canada +1 302 613 4491
• Latin America  +1 305 805 8188
• Europe  +44 1344 238258
• Japan  +81 (0) 3-6730-7152
• Singapore +65 6355 2828
• Greater China +86 4006396841

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