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DXP Installation, Operation & Maintenance
6
Illustration #6 : SPDT Switch Assembly
Switch CalibraSwitch Calibra
Switch CalibraSwitch Calibra
Switch Calibration Proceduretion Procedure
tion Proceduretion Procedure
tion Procedure
NeverNever
NeverNever
Never perform calibration while area is known to be hazardous.
Calibration may be performed using a Volt-Ohm meter by using the Ohm setting across
COM and NO. When switch is active, the meter will read <0.5 Ohms, or the Diode setting
may be used to indicate continuity.
If a 120Vac source is used, an appropriately sized resistor must be used in series to limit
current to a maximum of 15 Amperes when circuit rating is unknown, or permanent
damage may occur.
Step 1:Step 1:
Step 1:Step 1:
Step 1:
With valve in the CLOSED position, disengage the BOTTOM Cam from the splined
Hub and rotate Clockwise until SW1 activates. Release Cam to re-engage splined Hub.
Step 2:Step 2:
Step 2:Step 2:
Step 2:
Rotate valve to the OPEN position. Disengage the TOP Cam from the splined Hub
and rotate Counter-clockwise until SW2 activates. Release Cam to re-engage the splined
Hub.
Step 3:Step 3:
Step 3:Step 3:
Step 3: Cycle valve CLOSED and OPEN several times to insure switches will maintain
calibration.
For ReverseFor Reverse
For ReverseFor Reverse
For Reverse Acting actuaActing actua
Acting actuaActing actua
Acting actuators:tors:
tors:tors:
tors:
Step 1:Step 1:
Step 1:Step 1:
Step 1:
With valve in the CLOSED position, disengage the TOP Cam from the splined Hub
and rotate Counter-clockwise until SW2 activates. Release Cam to re-engage the splined
Hub.
Step 2:Step 2:
Step 2:Step 2:
Step 2:
Rotate valve to the OPEN position. Disengage the BOTTOM Cam from the splined
Hub and rotate Clockwise until SW1 activates. Release Cam to re-engage the splined Hub.
RepeaRepea
RepeaRepea
Repeat Step 3 at Step 3 a
t Step 3 at Step 3 a
t Step 3 above.bove.
bove.bove.
bove.
When using the (4) and (6) switch options,When using the (4) and (6) switch options,
When using the (4) and (6) switch options,When using the (4) and (6) switch options,
When using the (4) and (6) switch options, use the same calibrause the same calibra
use the same calibrause the same calibra
use the same calibration steps as ation steps as a
tion steps as ation steps as a
tion steps as abovebove
bovebove
bove
ff
ff
for the switches you determine to indicaor the switches you determine to indica
or the switches you determine to indicaor the switches you determine to indica
or the switches you determine to indicate OPEN and which indicate OPEN and which indica
te OPEN and which indicate OPEN and which indica
te OPEN and which indicate CLOSED.te CLOSED.
te CLOSED.te CLOSED.
te CLOSED.
Switches maSwitches ma
Switches maSwitches ma
Switches may also be set ay also be set a
y also be set ay also be set a
y also be set at midpoint,t midpoint,
t midpoint,t midpoint,
t midpoint, or anor an
or anor an
or any point,y point,
y point,y point,
y point, of traof tra
of traof tra
of travel fvel f
vel fvel f
vel for Dribor Drib
or Dribor Drib
or Dribble Control,ble Control,
ble Control,ble Control,
ble Control, oror
oror
or
anan
anan
any other logy other log
y other logy other log
y other logic necessaric necessar
ic necessaric necessar
ic necessary fy f
y fy f
y for the aor the a
or the aor the a
or the applicapplica
pplicapplica
pplication.tion.
tion.tion.
tion.
#hctiwSnoitcennoCedoCroloC#lanimreT
1
CNdeR1
MOCkcalB2
ONeulB3
2
CNthW/deR4
MOCthW/kcalB5
ONthW/eulB6
3
CNegnarO7
MOCnworB8
ONwolleY9
4
CNgrO/etihW01
MOCnrB/etihW11
ONleY/etihW21
5
CNteloiV31
MOCyarG41
ONetihW51
6
CNoiV/etihW61
MOCyrG/etihW71
ONkniP81
Sw1
Sw2
Sw1
Sw2
Sw3
Sw4
Sw1
Sw2
Sw3
Sw4
Sw5
Sw6
V3/V7 Style SPDT
Mechanical Switch
Rated 15.1A, 1/2HP, 125, 250, 277Vac
0.5A/125Vdc, 0.25A/250Vdc
OR
With Gold Alloy Contacts
Rated 1A/125Vac, 50mA/24Vdc
Minimum 1mA
Crimp-on Connector
(3) per switch.
See Lead Color Code Table
for termination points.
COM
NO
NC
4-40x2.25 (x2)
4-40x0.5 (x3)
4-40x0.25 (x2)
Bracket
Spacer
Divider
4-40x3.00 (x2)
Bracket
12pt Terminal Strip
4-40x2.25 (x2)
6-32x2.50 (x2) 4-40x0.5 (x6)
NC2
NO1
NC1
NO2
NC1
NO1
NC2
NO2
COM1
COM2
COM1
COM2
BRACKET
SPACER
SPACER
SW#1
SW#2
DPDT
15A/125Vac
#hctiwSnoitcennoCedoCroloC#lanimreT
1#WS
1CNdeR1
1MOCkcalB2
1ONeulB3
2CNthW/deR4
2MOCthW/klB5
2ONthW/ulB6
2#WS
1CNegnarO7
1MOCnworB8
1ONwolleY9
2CNgrO/thW01
2MOCnworB/thW1
1
2ONleY/thW21
Switch Calibration
NeverNever
NeverNever
Never perform switch calibration
while area is known to be hazardous.
Calibration procedure is the same for
the DPDT switches as with the SPDT
switches. Reference previous page.
