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INSTALLATION INSTRUCTIONS FOR ADDITION OF AN OPTICAL

TACH PACKAGE (TDM) TO BENCH & MINI REACTORS

(X1481B w/o Analog Output; For X1496B Follow Steps 1-6 & 23)

1. Remove belt guard from overarm after removal of (4) attaching screws and lift knob.

2. Install optical wheel disc (1564HC) to the existing driven pulley (858HC2) with (3) 6-32 x 3/8

machine screws.

3. Install the optical sensor assembly (A1001E2) to the overarm (1386HC2) with (2) 8-32 x 3/8

machine screws and (2) 8-32 "keps" nuts. Make sure to position the optical sensor assembly to

insure the optical wheel passes thru the slot of the sensor. The sensor can be adjusted up and

down by means of the sensor mounting screws to position the wheel thru the center of the slot in

the optical sensor.

4. Mount the optical sensor assembly connector to the overarm in the mounting hole provided. Use

(2) 4-40 x 3/8 machine screws and (2) 4-40 "keps" nuts to secure in place.

5. Reinstall the belt guard removed in step 1 with its attaching screws. Reinstall the round lift knob.

6. Connect the external optical harness assembly (A1002E) to the connector underneath the

overarm plate installed in step 4.

7. Unplug the power cord of the modular controller. Remove the (2) screws from the back side (at

the top corners) of the 4840 series controller. Lift the top cover which is hinged at the bottom front

of the case to the open position.

8. Remove and discard the uppermost 2" x 4" metal hole plug from the sloped front panel after

removing (2) attaching nuts from inside surface of the sloped front panel.

9. Use a small screwdriver to pry the red front panel off of the (A1005EEB) optical tach DPM (digital

panel meter) by inserting the tip of the screwdriver into the notch at the bottom center of the tach

case.

10. Insert the DPM into the rectangular opening, previously covered with the metal hole plug

removed in step 8. Take care to install the DPM with the printed circuit board, which protrudes

from the rear, to the bottom side.

11. Slide the rectangular-shaped ring over the rear side of the DPM from inside the sloped metal

cover.

12. Insert (2) small metal tabs (bent edge toward screw head) over #4 x 5/8 flat head machine

screws and insert (2) screws with tabs into holes on each side of the DPM. Turn screws to thread

into metal rectangular-shaped ring installed on the back side of the cover. Tighten screws

securely.

13. Reinstall red plastic cover onto the DPM.

14. Install edge connector of internal tach harness assembly (A1004E) to the back of the tach DPM.

Note the keying slot in the printed circuit board and the keying plug in the edge connector of the

harness must line up to properly to install the harness.

15. Secure connector to the DPM with furnished #4 x 1/2 pan head sheet metal screws thru the hole

in each end of the connector. Slide on the 3/16" long nylon spacer (1852HC), and attach to the

base of the DPM. Do not over tighten screws as it could bulge or push off the front panel.

No. 531M

1 2

Printed 11/02/06 2

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Pagina 1

- 1 - INSTALLATION INSTRUCTIONS FOR ADDITION OF AN OPTICAL TACH PACKAGE (TDM) TO BENCH & MINI REACTORS (X1481B w/o Analog Output; For X1496B Fol

Pagina 2 - Printed 11/02/06

PARR INSTRUMENT COMPANY 211 Fifty-Third Street Moline, Illinois 61265 USA 309/762-7716 800/872-7720 Fax 309/762-9453 http://www.parrinst.com •

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Parr-instrument Optical Tach Package Manual de usuario

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