Series QV Quick-View®Rotary Position Indicator/Switch
Specications - Installation and Operating Instructions
Bulletin F-87
Proximity Series QV Quick-View®Rotary Position Indicator/Switch is produced
with up to four individual mechanical or proximity switches. Instructions below include
installation, as well as adjustment procedures for direct drive and lever drive models.
INSTALLATION
1. Mounting kits, when provided include couplers, lever arms and screws for
mounting the position indicator to a valve or actuator. A position indicator is
mounted using direct drive hardware for quarter turn applications (rotational) and
lever drive hardware for converting linear motion to rotary. Tubular spacers are also
provided for some installations.
2. For direct drive models, attach appropriate drive yoke or solid block onto the two
pins,usinga#6-32X1/4˝screwprovided.Donotattempttofabricateyourown
yokes since this a special spring-tempered material. For direct drives, with the
actuator shaft rotated to its counterclockwise position, spread the driving yoke and
slip it down onto the square (or rectangular) shaft of the actuator. Attach bracket
with two hex cap screws. Before tightening screws, operate control slowly with
a wrench or power, and observe that drive shaft and drive yoke are concentric and
perpendicular throughout the complete stroke. Adjust position as required and
tighten all mounting screws. Check concentricity and perpendicularity.
3. Forleverdrivemodels,attachtheappropriatedrivingleverontotheshaft.Do
not tighten. Attach switch and bracket to actuator, making sure that the lever is
free to rotate over the entire range of the actuator stroke. Attach the driving pin
or bolt through the lever arm if slotted, or on the driving side of the lever. (It may
be necessary to loosen or remove the bracket mounting to accomplish this
connection on some actuators.) Operate the actuator very slowly and observe
movement of all pins and levers to be sure there are no interferences. Slide lever
up or down on switch shaft to the most desirable position. When all motions are
made and clearances are adequate, tighten clamp screw on lever that was left
loose above. Now tighten all the mounting screws. Re-check the travel of all levers
and pins for proper clearance throughout the complete stroke of the actuator.
4. Push cover down, then turn it counterclockwise and lift straight up to remove.
Remove inner cover window. Remove the indicator drum.
5. Switches are set at the factory in the counterclockwise position listed below:
2 Switch Unit #1 Open #2 Closed
4 Switch Unit #1, 3 Open #2, 4 Closed
90° rotational travel will reverse all of the above positions.
SPECIFICATIONS
Minimum Rotation Travel - Switches Only: 5°.
Maximum Rotation Travel - Switches Only: 360°.
Temperature Limits: -40 to 180°F (-40 to 82°C).
Switch Type: SPDT.
Electrical SPDT Switch Ratings: QV-X1XXXX: 10A @ 125/250 VAC; 0.5A 125
VDC;10A@24VDCmech.switch;QV-X2XXXX:0.1A@125VAC;0.1A@24
VDCmech.switch;QV-X3XXXX:2A@125VAC;2A@30VDCprox.switch;
QV-X4XXXX:5-25VDCnamursensor;QV-X5XXXX:10-30VDCinductivesensor;
QV-X6XXXX: 10A 125/250 VAC mech. switch.
Lighting Supply Voltage: 24-28VDC.
Enclosure Material: Polycarbonate housing and conduit.
Conduit Entrance: One3/4˝NPT.
Enclosure Rating: NEMA 4, 4X. Optional explosion-proof, rated: Class I, Groups A,
B,C,D;ClassII,GroupsF&G;Div.2.
Max. Altitude: 2000 m (6560 ft).
Agency Approvals: CE, CSA, cULus.
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: 219-879-8000
Fax: 219-872-9057
www.dwyer-inst.com
6-32 UNC
1/4 DP [6.350] 1/4
[6.350]
1/4
[6.350]
2-3/8
[60.33]
3-1/16
[77.79]
1-1/2
[38.10]
1/4-20 UNC
CONDUIT ENTRANCE
3/4 NPT
3 [76.20] CLEARANCE REQUIRED FOR COVER REMOVA
L
4-15/32
[113.5]
1/2
[12.70]
5/16
[7.938] 1/4 DIA. [6.350]
SHAFT LEVER
1/8 DIA. PINS (2)
4-3/4
[120.7]
MODEL CHART
Example QV -2 1 01 0 1 QV-210101
Series QV Quick-View®valve position indicator/switch
Number of
Switches
0
1
2
3
4
None*
One*
Two*
Three*
Four*
Switch Type 0
1
2
3
4
5
6
No switches*
10A mechanical snap switch
1A mechanical gold contacts
2A Proximity reed switch*
5-25VDCnamursensor
10-30VDCinductivesensor
10A mechanical snap switch
Driving Style 01
02
03
Direct*
Lever*
Namur*
Lighting
Option
0
1
None*
24-28VDCbrightwhiteLED’s
Visual
Indication
0
1
2
None
Standard (open closed)*
Upside down (open closed)*
Additional
Options
EX ClassI,Div.II,GroupsA,B,C&D;Class
II,Div.IIGroupsF&G.
*EX, Explosion-proof option available.
Note: The 1st, 2nd, 3rd and 6th codes can not all be zero.
