Dwyer Series VPI User manual

Dwyer
Brand
Dwyer
Model
Series VPI
Type
User manual

Dwyer Series VPI is a compact yet rugged rotary valve position indicator designed for confined and severe locations. It offers visual position indication as well as two internal limit switches. The spring-loaded splined cams require no tools for quick and precise adjustment. The Series VPI is available with mechanical or proximity limit switches. The mechanical models feature two SPDT limit switches, while the proximity models feature two solid-state inductive limit switches eliminating the need for the cams to make contact with the switches.

Dwyer Series VPI is a compact yet rugged rotary valve position indicator designed for confined and severe locations. It offers visual position indication as well as two internal limit switches. The spring-loaded splined cams require no tools for quick and precise adjustment. The Series VPI is available with mechanical or proximity limit switches. The mechanical models feature two SPDT limit switches, while the proximity models feature two solid-state inductive limit switches eliminating the need for the cams to make contact with the switches.

Bulletin V-37
The Series VPI Rotary Valve Position Indicators are compact
yet rugged for confined and severe locations. These versatile units
offer visual position indication as well as two internal limit switch-
es. The spring-loaded splined cams require no tools for a quick
and precise adjustment. The Series VPI is available with mechan-
ical or proximity limit switches. The mechanical models feature two
SPDT limit switches. The proximity models feature two solid-state
inductive limit switches eliminating the need for the cams to make
contact with the switches. The NEMA 6 (IP67) rating ensures pro-
tection against the ingress of liquid and debris.
ASSEMBLY
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
SPECIFICATIONS
Minimum Rotation Travel: 60°.
Maximum Rotation Travel: 360°.
Temperature Limits: -4 to 176°F (-20 to 80°C).
Switch Type: VPI-M: (2) mechanical SPDT limit switches; VPI-
P: (2) Inductive proximity limit switches.
Electrical Rating: VPI-M: AC: 3A at 250 V, 5A at 125 V; DC:
0.2A at 250 V, 0.4A at 125 V, 4A at 30 V.
Power Requirements: VPI-P: 12 to 24 VDC, 30 VDC
maximum.
Enclosure Material: Aluminum die-casting.
Electrical Connections: 8-contact screw terminal strip.
Conduit Connection: (2) 1/2˝ female NPT.
Enclosure Rating: NEMA 6 (IP67).
Mounting: NAMUR.
Weight: 1.9 lb (0.88 kg).
Specifications - Installation and Operating Instructions
Series VPI Valve Position Indicator
EXPLOSION
BASE BODY
TERMINAL
BASE COVER
INDICATOR
INDICATOR COVER
MECHANICAL SWITCH
ASSEMBLY
MAIN SHAFT
ASSEMBLY
W4
W3
L1
L2
3-27/32
[97.5]
1-61/64
[49.8]
2-25/32
[70.8]
3-51/64
[96.5]
1/2 NPT
4-3/4
[120.5]
BRACKET
H
Model
VPI-B01
VPI-B02
VPI-B03
VPI-B04
H in (mm)
1-13/64 [30.5]
1-19/64 [40.5]
1-19/64 [40.5]
2-3/8 [60.5]
L1 in (mm)
3-5/32 [80]
5-1/8 [130]
L2 in (mm)
3-15/16 [100]
5-29/32 [150]
W3 in (mm)
1-3/16 [30]
W4 in (mm)
2 [50]
Bracket Dimensions
V-37:TEMPLATE 6/16/10 11:16 AM Page 1
WIRING
Connection - Power
INSTALLATION
Safety Warning
• VPI Series is designed for non-explosion use. The VPI
should not be installed in explosives areas.
• All input and supply pressure to valve, actuator, and
other related devices must be turned off when installing.
VPI Installation
Installation Steps
1. Assemble limit switch body with the bracket.
2. Align main shaft of the limit switch box and the stem of the
actuator. After the alignment, tighten the bracket onto the
actuator.
BRACKET
BRACKET
ACTUATOR
INSTALLATION
4X M6 BOLT
4X M5 BOLT
4X M6 SPRING
WASHER
4X M5 SPRING
WASHER
MECHANICAL TYPE <2 SPDT>
NC
NO
NC
C
RED
BLACK
BLUE
YELLOW
WHITE
BROWN
1
2
3
4
5
6
7
8
SOLENOID
VALVE
GROUND
CLOSE OPEN EXT
C
NO
TOP SWITCH
BOTTOM
SWITCH
BROWN
BLACK
BLUE
BROWN
BLACK
BLUE
SOLENOID
VALVE
LOAD
GROUND
LOAD
CAM
CONNECTOR
TOP
SWITCH
BOTTOM
SWITCH
1
2
3
4
5
6
7
8
CLOSE OPEN EXT
PROXIMITY TYPE <NPN SENSOR>
ADJUSTMENT-LOWER SWITCH
MICRO SWITCH
CAM
ADJUSTMENT-UPPER SWITCH
MICRO SWITCH
CAM
ADJUSTMENT
Adjustment - Upper Switch
Push down upper switch and turn right or left for switch adjust-
ment.
Adjustment - Lower Switch
Pull up lower switch and turn right or left for switch adjustment.
MAINTENANCE
Upon final installation of the Series VPI Valve Position Indicator,
no routine maintenance is required. A periodic check of system
calibration is recommended. The Series VPI is not field
serviceable and should be returned if repair is needed (field
repair should not be attempted and may void warranty). Be sure
to include a brief description of the problem plus any relevant
application notes. Contact customer service to receive a return
goods authorization number before shipping.
©Copyright 2010 Dwyer Instruments, Inc. Printed in U.S.A. 6/10 FR# R4-443655-00
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
V-37:TEMPLATE 6/16/10 11:16 AM Page 2
  • Page 1 1
  • Page 2 2

Dwyer Series VPI User manual

Dwyer
Brand
Dwyer
Model
Series VPI
Type
User manual

Dwyer Series VPI is a compact yet rugged rotary valve position indicator designed for confined and severe locations. It offers visual position indication as well as two internal limit switches. The spring-loaded splined cams require no tools for quick and precise adjustment. The Series VPI is available with mechanical or proximity limit switches. The mechanical models feature two SPDT limit switches, while the proximity models feature two solid-state inductive limit switches eliminating the need for the cams to make contact with the switches.

Download PDF
report

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI

Related papers

Other documents