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3610J and 3620J Positioners
TERMINAL
BLOCK
CONTROL
FIELD WIRING
DEVICE
+
−
−
NOTE:
FOR TROUBLESHOOTING OR MONITORING OPERATION,
1
AN INDICATING DEVICE CAN BE A VOLTMETER ACROSS
A 250 OHM RESISTOR OR A CURRENT METER.
A5577 / IL
Figure 11. Typical Field Wiring Diagram
Diagnostic Connections
To support diagnostic testing of
valve/actuator/positioner/accessory packages,
special connectors and hardware are available. The
hardware used includes 1/8 NPT connector bodies
and body protectors. If the diagnostic connectors are
ordered for a positioner with gauges, 1/8-inch stems
are also included.
Install the connectors on the 3610J Series positioner
gauge block or bypass block assembly as shown in
figure 9. For 3620J Series positioners, install the
connectors on the 3622 housing as shown in figure
10. Before installing the connectors on the
positioner, apply sealant to the threads. Sealant is
provided with the diagnostic connections and
hardware.
Vent Connection
3610J and 3620J Series positioner relays exhaust
actuator pressure through the positioner case and
into the 1051, 1052, 1061, and 1069 actuator
housings. These actuator housings provide a 1/4
NPT connection and a screen is normally installed in
this connection to prevent blockage from debris or
insects. Restricting this vent area can produce a
pressure buildup in the case and degrade positioner
performance. There also is a 1/4 NPT connection on
the 3622 converter housing where the vent (key 28)
is installed. 585, 585R, 585C, and 585CR actuators
do not have a 1/4-inch vent connection.
18
CONVERTER
HOUSING
+
EARTH
GROUND
4-20 mA
5.6 V
21B2335-D
A5578-1 / IL
Figure 12. 3622 Converter Equivalent Circuit
WARNING
Personal injury or property damage
could result from fire or explosion of
accumulated gas if a flammable gas is
used as the supply pressure medium
and the positioner/actuator is in an
enclosed area. The positioner/actuator
assembly does not form a gas-tight
seal, and a remote vent line is
recommended. However, a remote vent
line cannot be relied upon to remove
all hazardous gas, and leaks may still
occur. Provide adequate ventilation
and necessary safety measures. Vent
line piping should comply with local
and regional codes and should be as
short as possible with adequate inside
diameter and few bends to reduce
case pressure buildup.
WARNING
3620J, 3620JP, 3621JP positioners and
the 3622 electro-pneumatic converter
do not meet third party approvals for
use with natural gas as the supply
medium. Use of natural gas as the
supply medium can result in personal
injury or property damage from fire or
explosion.
If a remote vent is required, the vent line must be as
short as possible with a minimum number of bends
and elbows. Vent line piping should have a minimum
inside diameter of 19 mm (3/4 inches) for runs up to
6.1 m (20 feet) and a minimum inside diameter of 25
mm (1 inch) for runs from 6.1 to 30.5 meters (20 to
100 feet).
Instruction Manual
June 2008
5.6 V
5.6 V
60 OHMS
60 OHMS
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