JOMAR AEP-100 Guide

AEP-100
Installation Operation &
Maintenance Instructions

040215 Jomar Valve ・ 7243 Miller Drive, Warren, MI 48092 ・ www.jomarvalve.com ・ phone: [phone] ・ fax: [phone]
Note: Information subject to change without notice.
IMPORTANT
Please read the installation operation and maintenance instruction prior
to using any Jomar Valve component. Failure to follow the instructions
may damage the component and/or void the warranty.
Contents
General 3
Features 3
Specications 3
Ordering 3
Inside View 4
Principle of Operation 4
Block Diagram of AEP-100 5
Installation 5
Example of attaching to actuator 5
Connection with feedback shaft 5
Cam attaching procedure 6
Attaching procedure of opening degree indication plate 6
Air Piping Connection 6
Electrical Wiring 7
Adjustment 7
Zero Adjustment 7
Span Adjustment 8
Auto/Manual Switch 8
Seat Adjuster (sensitivity adjustment) 8
Maintenance And Check 9
Caution On Handling 9
Trouble Shooting 9
Option 10
Pilot valve with output orice 10

040215
Jomar Valve ・ 7243 Miller Drive, Warren, MI 48092 ・ www.jomarvalve.com ・ phone: [phone] ・ fax: [phone]
Note: Information subject to change without notice.
General
The electro-pneumatic positioner EP-100 is used for rotary operation of pneumatic rotary valve actuators by means of electrical
controller or control systems with an analog output signal of 4 to 20mA or split ranges.
Features
• There is no resonance in the range of 5-200Hz.
• Performing - Split Control without any other substitutes.
• Easy to adjust zero and span.
• Easy to convert from Reverse Action to Direct Action or vice versa.
• Fast and accurate response
• Low air consumption
• Easy to protect from hunting e󱐯ect by using output orice in small size of actuator.
• Designed as Multi-port type of for air tubing
• Easy to install air tubing connection in any direction
• Designed as modular structure for maintenance and repair
Specications
AEP-100
Single Acting Double Acting
Input Signal 1-20mA Dc below 24V (1/2 split range available)
Impedance 250± 15
Supply Pressure 20 - 110 PSI
Stroke 0-90°
Air Connection NPT
Gauge Connection NPT
Conduit PF
Enclosure IP66 Dust and Watertight
Explosion Proof ExdmllBT5
Temperature Range 4°F ~ 158°F
Linearity ±2% FS
Hysteresis 1% FS
Sensitivity ±0.5% FS
Repeatability ±0.5% FS
Air Consumption 3LPM
Air Flow Capacity 80LPM
Houseing Aluminum Die Cast
Weight 6 lbs.
Ordering
Model EP-100 is shipped standard with a steel mounting bracket.

040215 Jomar Valve ・ 7243 Miller Drive, Warren, MI 48092 ・ www.jomarvalve.com ・ phone: [phone] ・ fax: [phone]
Note: Information subject to change without notice.
Inside View
Principle of Operation
Increase the input current signal to change position of valve. Force exerted by ①Torque Motor reduces Nozzle Back Pressure
with increase in gap between ②Flapper and ③Nozzle. Then ⑤Spool moves upward and the ⑦Seat opens simultaneously. Air
pressure of OUT1 pipe is discharged to (10)Actuator. As pressure in the actuator chamber goes up, ⑫Actuator stem starts to
rotate. The movement of ⑫Actuator stem exerts force to the Feedback Spring through the Feedback Shaft connection. Then the
⑫Actuator will stop at the point of force balance exerted by the input current signal and the feedback spring

040215
Jomar Valve ・ 7243 Miller Drive, Warren, MI 48092 ・ www.jomarvalve.com ・ phone: [phone] ・ fax: [phone]
Note: Information subject to change without notice.
Block Diagram of AEP-100
Installation
Example of attaching to actuator
Jomar provides a stamped steel bracket (above right) for mounting to the bottom of the positioner. However the PP-100 is drilled
and tapped on the side for side mounting of a custom fabricated bracket (above left).
Connection with feedback shaft
All Jomar positioners come with a standard NAMUR type spaded shaft for direct mounting to all Jomar actuators, and most other
brands of rack and pinion actuators manufactured with the NAMUR type slotted top shaft.

040215 Jomar Valve ・ 7243 Miller Drive, Warren, MI 48092 ・ www.jomarvalve.com ・ phone: [phone] ・ fax: [phone]
Note: Information subject to change without notice.
Cam attaching procedure
1. Use the DA face of cam to turn the actuator main shaft clockwise (as viewed from the positioner top view cover removed).
Use the RA face to turn it counterclockwise (reverse action). Correctly attach the cam to the ange part of feedback shaft.
2. Attach the cam by loosening the hexagonal nut with ange rst, setting actuator to the starting position and then
setting the cam reference line and the bearing contact point of span adjusting arm unit to the matching position.
3. Do not apply the supply pressure when attaching the cam as otherwise it is very dangerous.
4. When the positioner is shipped out of our plant, the cam is tentatively tightened to the shaft. Be
sure to rmly lock the cam to the lock nut (tightening torque approx 18 inch. Pounds).
Attaching procedure of opening degree indication plate
Lock the cam and then adjust the zero point and span. Then x the opening degree indication plate to the shaft using the M3
screw provided. At this time, set the opening degree indication plate to the reference line.
Air Piping Connection
1. Fully purge the pipe to remove foreign matter.
2. Use a clean supply air fully removed of humidity and dust.
3. Use lter regulator to keep supply air pressure constant.
4. When using the double acting type as single acting type, plug either OUT1 or
OUT2 and also remove the pressure gauge to close its connection.

040215
Jomar Valve ・ 7243 Miller Drive, Warren, MI 48092 ・ www.jomarvalve.com ・ phone: [phone] ・ fax: [phone]
Note: Information subject to change without notice.
Electrical Wiring
1. Connect the (+) and (-) output terminals from signal with the (+) and (-) input terminals, respectively.
2. For Explosion Proof, both pressure tight conduit thread connection type and pressure tight packing type are available.
3. Use PF _ standard for conduit thread connection type.
4. Close Junction box cover and lock Key Lock Screw.
5. There is a Spare Bolt in terminal board.
Adjustment
Check the following prior to starting the adjustment.
1. Check that the pipeline is correctly connected with the pressure supply port and OUT1 and OUT2 port.
2. Check that the wires are correctly connected with the (+), (-) and grounding terminals.
3. Check that the actuator and positioner are sturdily connected.
4. Check for locking of the auto/manual changeover screw of pilot valve(fully tightened in the clockwise direction).
5. Check that the span adjusting lever of internal feedback lever is attached to the correct (Direct or Reverse) position.
6. Check for correct use of the cam face (Direct or Reverse) and that ange nut is rmly locked.
Zero Adjustment
1. Set a signal to the Stroke starting signal(4mA) then turn Zero Adjuster
clockwise or counterclockwise, to calibrate to zero gauge.
2. In case of Spring Actuator, check if it is set to standard pressure in Zero Point. If not, repeat zero adjustment.

040215 Jomar Valve ・ 7243 Miller Drive, Warren, MI 48092 ・ www.jomarvalve.com ・ phone: [phone] ・ fax: [phone]
Note: Information subject to change without notice.
Span Adjustment
1. 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.
2. Check Zero Point and repeat Zero Span Adjustment. _ Split Range can be used by Zero and Span Adjustment.
3. After Setting, tighten up Lock Screw of Span adjustment.
Auto/Manual Switch
1. This is a Switch for changing from Auto and Manual.
2. Shipped products are set for Auto. To use Manual operation, turn A/M Switch counterclockwise.
3. In manual operation, the supply pressure is routed directly to the actuator through output 1.
4. This feature is only available for directing supply pressure through output 1.
Seat Adjuster (sensitivity adjustment)
1. No need to adjust in the eld because the Seat Adjuster Is adjusted before
shipment for balanced pressure point of output pressure.
2. Seat Adjuster is always used for Double-acting. If the need arises to balance
pressure point of output Pressure, use Seat Adjuster.
3. If the sensitivity is poor because of the actuator type or load condition, 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 coming o󱐯 the seat adjuster.)
4. If hunting occurs due to an actuator of small capacity, refer to description in Options on page 11.

040215
Jomar Valve ・ 7243 Miller Drive, Warren, MI 48092 ・ www.jomarvalve.com ・ phone: [phone] ・ fax: [phone]
Note: Information subject to change without notice.
Maintenance And Check
1. 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.
2. When you disassemble the pilot valve, grease the sliding section of o-ring.
3. When the xed orice is clogged with carbon particles or others, remove the pilot valve Auto/Manual
changeover screw (built-in xed aperture) and clean it by inserting a Ø0.2 wire into the aperture. If it must
be replaced with new one, close the supply pressure and remove the stopper screw of the pilot valve.
4. Check the positioner once a year. When you nd excessively worn diaphragm, O-ring and other
packing of unit, it should be changed with new ones. Treatment at an early stage is especially import
if the positioner is used in a place of severe environment such as coastal areas of the country.
Caution On Handling
1. Do not apply large vibration or impact to the positioner. It causes trouble. The positioner
must be handled very carefully during transportation and operation.
2. If the positioner is used under temperature outside of the specication, the sealing materials
deteriorate quickly and also the positioner may not operate normally.
3. Do not remove the terminal cover at a dangerous position during power conduction.
4. Be sure that the terminal cover and body cover are put on during the operation.
5. If you leave the positioner at the operation site for a long time without using it, put the cover on it so that the 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.
Trouble Shooting
Trouble Check if... Solution
Not operational
when input signal
applied
Air supply is too low or blocked Input supply air
Connections are loose Tighten set screw of terminal
Wiring for ⊕ and ⊖ are correct Connect wiring ⊕ and ⊖
Short or open circuit in the terminal motor Replace motor unit
Nozzle is clogged Replace motor unit
Feedback lever is loose or on the wrong setting Correct setting and tighten
OUT1 pressure raises
and stays, and then
doesn’t come down
A/M switch is leaking Tighten or replace A/M switch
Flapper is scratched or wrong contact Replace motor unit
Fixed orice is clogged Clean or replace xed orice
Output pressure is
operated by A/M
switch only
Nozzle is clogged
Clean nozzle or replace motor unit
Hunting occurs O󱐯-position stabilizer spring Insert stabilizing spring
Too low of actuator volume Insert orice
Fixed orice is clogged Clean or replace xed orice
Actuator is operated
by On/O󱐯 only
Wrong connection of OUT1 and OUT2 tubing Correct position of tubing

040215 Jomar Valve ・ 7243 Miller Drive, Warren, MI 48092 ・ www.jomarvalve.com ・ phone: [phone] ・ fax: [phone]
Note: Information subject to change without notice.
Trouble Check if... Solution
Linearity is not good Feedback lever is on the wrong setting Readjustment zero, span adjustment
Wrong zero, span adjustment Readjustment zero, span adjustment
Supply pressure is unstable Replace regulator
Hysteresis is poor Wrong setting of seat adjustment Readjust seat adjuster
Loose connection of actuator and positioner Tighten connection
Cam shaft is worn out Replace cam shaft
Option
Pilot valve with output orice
1. Hunting may occur when the positioner is attached to a small capacity actuator.In such case, use a
pilot valve having a output orice for OUT1 and OUT2. The output orice is removable.
2. Output orice types. (Refer to description in chapter 4. Ordering Symbols.)
Volume of Actuator Output orice diameter Ordering No.
Below 6 cubic inches Ø 0.7 RO1
6~10 cubic inches Ø 1.0 RO2
Over 10 cubic inches None
3. After pulling out the O-ring from OUT1 and OUT2 port, push proper orice and then mount the O-ring to OUT1 and
OUT2 again. When mounting the output orice, pay attention not to let dust and others enter the port hole.
4. If the hunting does not stop even after mounting the output orice, please contact us.