W.E. Anderson PRECISOR II 165EL Series User manual

SPECIFICATI NS
Input Signal: 4 to 20 mA DC.
Input Impedance: 250 ±15 Ω.
Material: Aluminum diecasting.
Air Supply: 20 to 101 psig (1.4 to 7.0
bar).
Air Supply Connection: 1/4˝ NPT.
Gage Connection: 1/8˝ NPT.
Electrical Connection: Screw
Terminal.
Conduit Connection: 1/2˝ NPT.
Linearity: ±0.2% of FS.
Hysteresis: 1% of FS.
Sensitivity: ±0.2% of FS.
Repeatability: ±0.5% of FS.
Air Consumption: 0.10 scfm (3 PM)
at 20 psig (1.4 bar) supply.
Flow Capacity: 28 scfm (80 PM) at
20 psig (1.4 bar) supply.
Stroke: 0.5 to 6˝ (10 to 150 mm).
Enclosure Rating: IP66.
perating Temperature:
165E : -4 to 158°F (-20 to 70°C);
165E -SS: -40 to 158°F (-40 to
70°C);
165E -FM: -4 to 140°F (-20 to
60°C).
Weight: 165E : 6.1 lb (2.7 kg);
165E -SS: 12.6 lb (5.7 kg).
Agency Approvals: CE (165E
only), FM (165E only).
W.E. ANDERS N DIV., DWYER INSTRUMENTS, INC.
P. . B X 358 • MICHIGAN CITY, INDIANA 46360 U. S. A.
Phone: [phone] www.dwyer-inst.com
Fax: [phone] e-mail: [e-mail]
The Series 165EL PRECIS R®II Electro-Pneumatic Positioner is used for lin-
ear operation of pneumatic linear valve actuators by means of electrical controller
or control systems with an analog output signal of 4 to 20 mA or split ranges.
FEATURES
• There is no resonance in the range of 5 to 200 Hz.
• Perform 1/2 split control without any other substitutes.
• Easy to adjust zero and span.
• Easy to convert from reverse action to direct action or vice versa.
• Easy feedback connection.
• Fast and accurate response.
• ow air consumption.
• Designed as multi-port type for air tubing.
• Easy to install air tubing connection in any direction.
• Designed as block build structure for maintenance and repair.
STRUCTURE
Series 165EL PRECIS R®II Electro-Pneumatic Linear Positioner
Specifications - Installation and perating Instructions
Bulletin F-90
TM
SPAN UNIT
TORQUE MORTOR
ZERO UNIT
BASE BODY
PILOT VALVE
FEEDBACK SHAFT
FEEDBACK LEVER
VENT UNIT
BASE COVER
JUNCTION BOX
PRINCIPLE F PERATI N
Increase the input current signal to change lift position of valve. Force exerted by
(1) Torque Motor reduces Nozzle Back Pressure with increase in gap between (2)
Flapper and (3) Nozzle. Then (5) Spool moves upward and the (7) Seat opens
simultaneously. Air pressure of OUT1 pipe is discharged to (10) Actuator. As pres-
sure in the actuator chamber goes up, (12) Actuator Stem starts to move. The
movement of (12) Actuator Stem exerts force to the (a) Feedback Spring through
Feedback Shaft connections. Then (10) Actuator will stop at the point of force bal-
ance exerted by the input current signal and the feedback spring.
SPARE
30
2040
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
INPUT SIGNAL
4 ~ 20 mA
E
OUT1
OUT2
SUPPLY
STAINLESS STEEL VERSION
STANDARD VERSION
8-3/4
[225.30]
6-9/16
[166.69]
2X M8X1.25
4-19/32
[116.69] 1-25/32
[45.24]
1-31/32
[50.01]
4X M8X1.25
2-3/4
[69.85]
3-19/32
[91.29]
2X M8X1.25 4X M8X1.25
6-9/16
[166.69]
1-25/32
[45.24]
6-43/64
[169.47]
4-41/64
[117.87] 3-5/8
[92.08]
2-49/64
[70.25]
1-31/32
[50.01]

BL CK DIAGRAM F 165EL
INSTALLATI N
Example of attaching to actuator
Example 1.
Case of directly attaching to diaphragm valve.
Example 2.
Case of using a bracket.
Connection with Feedback Lever
Attach in the position that the valve stem and lever form a right angle when the
input signal is 50%. Attach to the position that the runout angle is within the range
of 10 to 30°.
INSTALLATI N cont.
Direct Action & Reverse Action
Attach the cam in the procedure of loosening the hexagonal nut with flange first,
setting the actuator to the starting position and then setting the cam reference line
and the bearing contact point of span adjusting arm unit to the same position. Do
not apply the supply pressure when attaching the cam as otherwise it is very dan-
gerous. When the positioner is shipped out, the cam is tentatively tightened to the
shaft. Be sure to firmly lock the cam to the lock nut [tightening torque 17.7 to 22.1
in-lbs (2.0 to 2.5 NM)].
AIR PIPING C NNECTI N
Fully purge the pipe to remove foreign matter. Use a clean supply air fully
removed of humidity and dust. Use a Series AFR filter regulator to keep supply
air pressure constant.

ELECTRICAL WIRING
Connect the (+) and (-) output terminals from the regulator with the (+) and (-)
input terminals, respectively, of the positioner.
- Use Cable Gland in pressure tight packing type.
(Cable O.D.= 0.375˝ ).
- Use 1/2˝ NPT standard for conduit thread connection type. There is a
Spare Bolt in the terminal board.
ADJUSTMENT
Check the following prior to starting the adjustment:
• The pipeline is correctly connected with the pressure supply
port and OUT1 and OUT2 port.
• The wires are correctly connected with the (+), (-) and
grounding terminals.
• The actuator and positioner are sturdily connected.
• For locking of the auto/manual changeover screw of pilot valve
(fully tightened in the clockwise direction).
• The span adjusting lever of internal feedback lever is attached to the
correct (Direct or Reverse) position. Flange nut is firmly locked.
Zero Adjustment
Set input signal to the Stroke starting sig-
nal (4 mA) then turn the Zero Adjuster
clockwise or counterclockwise. In case of
Spring Actuator, check if it is set to stan-
dard pressure in Zero Point. If not, repeat
Zero adjustment.
Span Adjustment
Adjust Range Adjustment so that an
Actuator stops at 0% position of the
Stroke by the 0% applied input signal and
100% position for 100% input signal
respectively. Check Zero Point and repeat
Zero Span Adjustment. 1/2 Split Range
can be used by Zero and Span
Adjustment. After Setting, tighten up ock
Screw of Span
adjustment.
Auto/Manual Switch
This is a Switch for changing Auto and Manual. Shipped products are set for Auto.
To use Manual operation, turn A/M Switch counterclockwise. In manual operation,
the pressure of AFR regulator connects to Actuator. After using, return switch to
"A". Not available for OUT2.
SPARE
Grounding
External Grounding Terminal
M4*0.7P Round Head Screw
Internal Grounding Terminal
M4*0.7P Round Head Screw
Seat Adjuster
No need to adjust in the field because Seat
Adjuster is to be adjusted before shipment for
balanced pressure point of output pressure. If
the sensitivity is poor because of the actuator
type of load condition, turn the seat adjuster
screw clockwise. If hunting occurs, turn the
seat adjuster screw counterclockwise. (The
amount of turning varies by actuators. Do not
loosen the stopper screw at this time since it
is set to avoid the screw coming off.)
Ps=Supply Pressure
Low Pressure Balance
(0.4~0.5 Ps)
Med. Pressure Balance
(0.5 Ps)
High Pressure Balance
(0.9~1.0 Ps) - Normal
Balanced Point
Balanced Point
Balanced Point
Input
Pressure
Output
Pressure
Output
Pressure
Output
Pressure
MAINTENANCE
If the supply air is fouled, the positioner may not operate normally. Periodically
check the compressed air cleaning system and make sure that clean air is always
supplied. When disassembling the pilot valve, coat grease to the O-ring of the
sliding section. When the fixed orifice is clogged with carbon particles or others,
remove the pilot valve Auto/Manual changeover screw (built-in fixed aperture)
and clean it by inserting a 32 AWG wire into the aperture. If it must be replaced
with new one, stop the supply pressure and remove the stopper screw of the pilot
valve. Check the positioner once a year. Treatment at an early stage is especial-
ly important if the positioner is used in severe environments, like coastal area.
In the unlikely event the 165E Series Positioner should fail, the unit can be
returned to the factory for warranty repair if the warranty period has not expired.
Contact our customer service department for a RGA number and to setup the
return.
WARNING
Do not apply large vibration or impact to the positioner. The positioner must be
handled very carefully during transportation and operation. If the positioner is
used at temperatures outside of the specification, the sealing materials deterio-
rate quickly and also the positioner may not operate normally. Use clean supply
air fully removed of humidity and dust. Do not remove the terminal cover at a dan-
gerous position during power conduction. Be sure that the terminal cover and
body cover are installed during the operation. If you leave the positioner at the
operation site for a long time without using it, put the cover on it so that rain water
does not enter the positioner. If the atmosphere is of high temperature or high
humidity, take measures to avoid condensation inside. The condensation control
measures must be taken thoroughly for export shipment.
Lock Screw
High Pressure Balance
(13.1 - 14.5 psi Ps)
Med. Pressure Balance
(7.3 psi Ps)
ow Pressure Balance
(5.8 - 7.3 psi Ps)
Ps = Sup. Pressure

W.E. ANDERS N DIV., DWYER INSTRUMENTS, INC.
P. . B X 358 • MICHIGAN CITY, INDIANA 46360 U. S. A.
Phone: [phone] www.dwyer-inst.com
Fax: [phone] e-mail: [e-mail]
©Copyright 2012 Dwyer Instruments, Inc. Printed in U.S.A. 7/12 FR# RB-443333-00 Rev. 5
TR UBLESH TING
Condition
Not operating with Input
Signal applied
OUT1 pressure raised,
does not come down
Output pressure is oper-
ated by A/M switch only
Hunting occurs
Actuator is operated by
On/Off only
inearity is not good
Hysteresis is not good
Cause
Too low or no supply air
oose connection
Wrong wiring for (+) and (-)
Short or open circuit of terminal
motor
Clogged nozzle
oose or wrong setting of
feedback lever
eakage of A/M switch
Wrong contact or search of
Flapper
Clogged fixed orifice
Clogged nozzle
Off-positioned stabilizer spring
Too low of actuator volume
Clogged fixed orifice
Wrong connection of
OUT1 and OUT2 tube
Wrong setting of feed-
back lever
Wrong Zero, Span Adjustment
Supply pressure is unstable
Wrong setting of Seat
Adjuster
oose connection of actuator
and positioner
Cam Shaft is worn out
What To Do
Input or increase supply air
Tighten set screw of terminal
Connect wiring (+) and (-)
Replace Motor Unit
Replace Motor Unit
Correct setting and tighten
Tighten or replace A/M switch
Replace Motor Unit
Clean or replace fixed orifice
Clean nozzle or
replace Motor Unit
Insert stabilizer spring
Insert orifice
Clean or replace fixed orifice
Correct position of tube
Readjust setting of
feedback lever
Readjustment of Zero, Span
Adjustment
Replace regulator
Readjust Seat Adjuster
Tighten connection
Replace Cam Shaft