Dwyer Instruments PROXIMITY Series User manual

1
Series Mark Position Indicator/Transmitter
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The Proximity Controls Series Mark Position
Indicator/Transmitter is a line of position indicators
with a selection of various output options. Three model
styles make up the Mark Series to cover almost any
application. A magnetic drive that completely seals the
switch compartment from the atmosphere for maximum
leak protection is utilized in the Mark 1. The Mark 3 uses
the same magnetic drive of the Mark 1, but it can be used
for multi-turn applications with 1 to 25 revolutions, such
as gate valves. A through shaft drive is incorporated in
the Mark 4 making the unit a lower cost alternative to the
Mark 1 for applications that are not as demanding.
Standard models in the Mark Series have visual position
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submersible. A large variety of outputs are available to
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outputs of 13 varieties including inductive sensors,
high temperature switches, gold contact switches,
hermetically sealed switches, and high current switches.
Aside from switch outputs, the Mark Series offers
potentiometer outputs, 4-20 mA transmitters, and HART®
communication.
The units are purchased for either direct drive
applications, such as rotary valves, or lever drive
applications, such as linear valves. For the Mark 1, 3,
and 4 this instruction manual starts with installation of
the unit to the device being monitored, and the set up
of switch models. Separate instructions follow covering
the potentiometer and transmitter set up if your unit has
those options.
This product uses FreeRTOS (www.FreeRTOS.org)
version 8.0.1. A copy of the original FreeRTOS source
shall be provided upon request.
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Introduction. . . . . . . . . . . . . . . . . . . . . . 1
Dimensions . . . . . . . . . . . . . . . . . . . . . 2
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0RGHO1XPEHU&RQ¿JXUDWLRQ. . . . . . . . . . . . 4-5
Junction Package . . . . . . . . . . . . . . . . . . 
Factory Sealed Leads . . . . . . . . . . . . . . . . 
Mounting Kits for Valves . . . . . . . . . . . . . . . 
Mark 1 and 4 Direct Drive Installation . . . . . . . . 7
Mark 1 and 4 Lever Drive Installation . . . . . . . . 8
Mark 3 Direct and Lever Drive Installation . . . . . . 9
Mark 1, 3, and 4 with Potentiometer Installation . . 10
Mark 1, 3, and 4 with Transmitter Installation . . 11-12
Mark 1, 3, and 4 Transmitter with
HART®Communication Protocol . . . . . . . . . 12-13
Wiring, Intrinsic Safety and Warnings . . . . . . 14-15
Schematics: General and Intrinsic Safety . . . . 
Maintenance. . . . . . . . . . . . . . . . . . . . 20
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UL rated: Class I, Div. 1 and 2, Groups B, C, D (Some
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1.5 or M20 X 1.5 connections may be supplied in lieu of
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followed by A, B, C, G, I, T, V or W.
CLEARANCE REQUIRED
FOR COVER REMOVAL LEVER
DRIVE 1-1/16
[26.99]
5/16 [7.94]
.249 ± .001
[6.32 ± .03]
2-3/8
[60.33]
DIRECT
DRIVE
4-1/4
[107.95]
3 [76.20]
5-15/16
[150.81]
*4-9/16
[115.89]
1-1/4 [31.75]
#6-32 UNC
THREAD
X 1/4 [6.35]
DEEP
1-9/16 [39.69] 4-7/8 [123.83]
3/4 NPT
CONDUIT
CONNECTION
OR OPTIONAL
M25 X 1.5
1 [25.40] 2-3/8
[60.33]
Ø4-7/16
[112.71]
1/4
[6.35]
TYP
Ø1/8 [3.18] PIN TYP 2 PLACES
1/2 NPT CONDUIT CONNECTION [OPTIONAL]
OR OPTIONAL M20 X 1.5 2 PLACES
1/4-20 UNC THREAD
X 7/16 [11.11] DP
TYP 2 PLACES *FOR MODELS 11, 12, 41 & 42
118°
1-1/2
[38.10]
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Switch Type: See model chart on pages 4 and 5.
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optional.
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=HURDQG6SDQ$GMXVWPHQWVPushbuttons or HART®communication master for setting both. Mark 1 and 4: Span
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optional.
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4
Construction 1
3
4
Mark 1, magnetic coupling
Mark 3, multi-turn
Mark 4, thru-shaft
Available
Options “A”
VLJQL¿HV
available with
corresponding
construction
style
Mark
134
Output Type 1
2
3
31
32
35
310
320
4
5
51
52

7
8
9
1 switch
2 switches
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4 switches
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EHORZ
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EHORZ
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approved units only)
AS-interface and 1 switch; Available with switch types B, I, R, W
AS-interface and 2 switches; Available with switch types B, I, R, W
Transmitter with HART®communication; Available with switches, see
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A
A
A
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--
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A
A
A
A
A
A
A
A
Switch Type
and Rating
A
B
C
D
G
H
I
M
O
R
S
T
V
W
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Inductive sensor. 10-30 VDC ( ); Load: 0.1 A
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0.15 A @ 250 VDC ( )
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NAMUR inductive sensor; 15 mA max @ 5-25 VDC ( )
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No switches
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24 VDC ( )
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a$#9'& $#9'&$#9$&a
(tungsten)
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A
A
A
A
A
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--
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switches if ordered with switch types B, C, D, I, R, V, or W; and 4 switches if ordered with switch type S. Mark 3
potentiometer and transmitter outputs will have no switches when ordered with switch type O, and 2 switches if
ordered with switch types A, G, M or T.

5
Available
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VLJQL¿HV
available with
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construction
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Mark
134
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Method A D
(
L
M
A direct or yoke drive without visual indicator
Direct drive (or yoke) with visual indicator
Direct or yoke drive with visual indicator, single window
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(QFORVXUH 0
1
2
5

7 thru 20
Aluminum, painted black
Aluminum, painted white epoxy with SS trim
Aluminum, painted red
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C2
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J1
J2
SV1
SV2
MT
B
IS
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II
PP
SS
PT
STR
STW
Long dwell cam (not on Mark 3)
Double cam (not on Mark 3)
FKM seals
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and terminal strip
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Connection and terminal strip
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Metric threaded conduit connection, M25 X 1.5 (M20 X 1.5 for
optional J1 and J2 connections)
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switch type selected
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Paper tag
SS tag riveted
SS tag wired
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package.
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enclosure.

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Complete factory assembled packages combine visual
indication, solenoids, switches and transmitter in a single
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assembly which saves labor and reduces cost. The
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painted aluminum, epoxy coated aluminum or stainless
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entrances. The optional conduit entrances are drilled and
tapped in the base of the position indicator housing and
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AWG wire leads from solenoids, switches and optional
transmitter are terminated in prelabeled, easy-access
terminal strips protected inside the housing. Note:
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complete package assembly by Proximity. Consult the
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)$&725<6($/('/($'6
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(413 bar) and is UL and CSA listed for Class I, Groups
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locations. Groups may vary depending on the switch
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long.
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Mounting kits are available for direct installation of the
Proximity Controls Mark Series onto most valve and
actuator brands. Proximity Controls has over 2000 kits
available and can custom make kits for any application.
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Mounting kits can be used with any model in the Mark
Series, since external features are identical. Rotary valve
kits utilize direct drive couplings, while linear valve kits
use a lever drive.
Kits include a drive yoke or slotted lever arm, bracket,
and fasteners made in either zinc plated steel or stainless
steel. The high strength, spring tempered, stainless
VWHHO GULYH \RNHFRXSOLQJ LV WDLORUHG WR ¿W VHFXUHO\ WR D
VSHFL¿FYDOYHRUDFWXDWRUVWHPHQVXULQJWKDWWKHUHLVQR
VOLSSDJH RU ELQGLQJ 1R VSHFLDO DOLJQPHQW ¿[WXUHV DUH
required due to switch-offset design and yoke to stem
engagement that makes installation a snap.
If you have purchased this unit without a mounting kit,
please contact us to get the proper kit for your application.
9,68$/,1',&$725
A stainless steel mechanical visual indicator is standard
on direct drive units. The indicator provides visual open
and closed indication and a degree scale, which can
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Note: Junction package is not available on six switch
models, switch type A, D, G, H, and T models.
SWITCH
VISUAL INDICATOR
DRIVE YOKE
MOUNTING KIT

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1. Unscrew cover. Keep threads clean and free from
damage.
2. Switches are set at factory when in counterclockwise
position. Index marks should appear as shown (Mark
1 only). Set screws, or holes in manual cams, (#2, 4
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index marks.
2 Switch Unit #1 Open #2 Closed
4 Switch Unit #1, 3 Open #2, 4 Closed
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3. Attach appropriate Drive Yoke onto two pins using
  DVFUHZSURYLGHGNote: Coupling is a special
spring temper yoke or solid metal block. Do not
attempt to fabricate your own yokes.)
4. Attach mounting bracket (127-003 is shown) to
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5. With actuator shaft rotated to its counterclockwise
position, spread the drive yoke and slip it down
onto the square (or rectangular) part of the actuator
shaft. 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
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tighten all the mounting screws. Check concentricity
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necessary.
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A. Using a wrench or power, rotate the actuator shaft to
extreme clockwise position. All switches should
change to their opposite function.
B. The cam can be relocated and repositioned by
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grasp cam on knurled segment of cam surface.
Simply rotate the cam on spline attached to the
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pressure on cam when it is at proper actuation point.
This allows cam to engage spline. Check the circuit
to verify contact at proper point. Rotate shaft. Repeat
steps above as necessary. Lock manual cam on
spline by tightening set screw provided for additional
security.
C. Screw on cover and tighten against O-ring seal until
cover does not turn.
6HH 3DJHV  for wiring procedure, intrinsic safety
parameters, relevant warnings and schematics.
1.
2.
3.
4.
5.

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1. Attach proper mounting bracket to switch housing
using screws provided. Tubular spacers are provided
for some installations.
2. Attach appropriate driving lever onto shaft. Do not
tighten.
3. Attach switch and bracket to actuator, making sure
that lever is free to rotate over entire range of actuator
stroke.
4. Attach driving pin or bolt through lever arm if slotted,
or on driving side of solid lever. (It may be necessary
to loosen or remove mounting bracket to accomplish
connection on some actuators.)
5. Operate 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 most desirable position. When all motions
are made and clearances are adequate, tighten
clamp screw on lever that was left loose in step 2.
Tighten all mounting screws. Recheck the travel of all
levers and pins for proper clearance through the
entire stroke of the actuator.
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damage. Index marks are imprinted into driven
magnet collar as shown (Mark 1 only). Set screws or
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above index marks on those switches that are
Closed. Marks must be in line when making switch
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the counterclockwise position, as shown, and listed
as follows:
2 Switch Unit #1 Open #2 Closed
4 Switch Unit #1, 3 Open #2, 4 Closed
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above switch positions.
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A. Operate actuator to full closed position. Set screws
hold cams in place on the shaft. For manual cams,
grasp cam on knurled segment of cam surface and
simply rotate cam to get correct actuation point. Clicks
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on cam in direction of protruding actuation segment
of cam surface, and rotating, eliminates incremental
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on cam when at proper actuation point. This allows
engagement of cam to spline. Check circuit to verify
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steps as necessary. Lock manual cam on spline with
set screw provided for additional security.
B. Operate actuator to opposite extreme (full open),
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C. Screw on cover and tighten against O-ring seal until
cover does not turn.
6HH 3DJHV  for wiring procedure, intrinsic safety
parameters, relevant warnings and schematics.
1
2
3
4
3
4
CLOCKWISE

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Mount the switch as necessary, concentric and
perpendicular over the rotating shaft that is to be
monitored. Direct drive yokes are available in many
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from spring temper stainless steel. Do not attempt to
fabricate your own yokes.) Shaft drive units require an
DSSURSULDWHFRXSOLQJÀH[LEOHW\SHUHFRPPHQGHGWRWKH
shaft being monitored.
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1. Remove cover by unscrewing. Take care to keep
threads clean and free from damage.
2. Clockwise rotation of the yoke or shaft will move the
bar up, counterclockwise moves it down.Switches are
set at the factory for approximately one revolution of
the yoke or shaft to actuate switch #1. Notice, that the
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that cam screw to location D, three additional
revolutions of the yoke or shaft will be required to
actuate #1 switch. Moving the cam screw to holes C,
B or A will add three revolutions for each location
moved, until 13 revolutions are required between
switch #1 and 2 actuation.
3. The cam screw for switch #2 in location A. By moving
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added for each location change.
4. Rotate the switch slowly through the full cycle several
times before tightening the bolts securely. Observe
the rotation for signs of yoke or shaft misalignment
or binding with the actuator shaft. Correct as
necessary, then tighten the mounting bolts and
recheck alignment.
5. The following chart shows the various combinations
of screw positions and resulting revolutions between
switch actuation.
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revolutions or partial revolutions can be selected by
turning the cam screws in or out when located at the
nearest location shown above. Any partial number of
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6HH 3DJHV  for wiring procedure, intrinsic safety
parameters, relevant warnings and schematics.
SHAFT DRIVE
YOKE DRIVE
CLOCKWISE
CAM SCREWS
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Switch #1 Switch #2 Between Switch $FWXDWLRQ
(
D
C
B
A
A
A
A
A
A
D
A
A
A
B
C
D
(
1
4
7
10
13

19
22
25

10
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1. Attach the switch to the actuator or valve. Refer to
  ,QVWDOODWLRQDQG$GMXVWPHQW,QVWUXFWLRQV
p. 7 for Direct Drive Mark 1 and 4 Models
p. 8 for Lever Drive Mark 1 and 4 Models
p. 9 for Mark 3 Models
2. Remove cover by unscrewing. Take care to keep
threads clean and free from damage.
3. On models 13XXX and 43XXX, the switches are set
at the factory when in the counterclockwise position
as shown. Switch #1 is open, and #2 is closed.
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  FORVHGDQGLVRSHQ7KHFDPVPD\EHDGMXVWHGWR
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33XXX refer to pages 9 and 10 for Switch
  $GMXVWPHQW3URFHGXUH
4. The potentiometer is positioned at the factory with
the resistance element approximately centered. The
resistance readings in the chart are typical of each
different potentiometer.
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loosen the two lower set screws on the coupling.
While holding the cams in the desired position, rotate
the coupling and potentiometer shaft to the preferred
location. Rotating clockwise reduces resistance
between pins 2 and 1, and increases resistance
between 2 and 3. Rotating counterclockwise
increases resistance between pins 2 and 1, and
reduces resistance between 2 and 3. If the
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to activate move bypass shunt to the other pin.
6HH 3DJHV  for wiring procedure, intrinsic safety
parameters, relevant warnings and schematics.
Potentiometer
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Resistance Between Pins
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&&:6(7 &: &&:6(7 &:
1000
2000
5000
10000
20000
2.9
5.8
14.7
29.4
58.8
500
1000
2500
5000
10000
235
471
1178
2354
4708
500
1000
2500
5000
10000

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3823

15294
TERMINAL 3
TERMINAL 2
TERMINAL 1
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