Owner’s Instruction Manual Electronics Inc. 56790 Magnetic Drive Mishawaka, Indiana USA 46545-7493 Made in USA www.electronics-inc.com MODEL 500 MAGNAVALVE® IM:0053 Revision: A Date: June 29, 2000 Model 500 MagnaValve H:\MANUALS\IM0053A.
TABLE OF CONTENTS 1. GENERAL ..................................................................................................3 2. PRINCIPLE OF OPERATION – ENGINE...................................................3 3. PRINCIPLE OF OPERATION – SENSOR .................................................3 4. MECHANICAL INSTALLATION ................................................................3 5. ELECTRICAL INSTALLATION..................................................................4 6.
1. General The model 500 MagnaValve is a magnetic valve capable of regulating the flow of steel shot in the range of 0-1200 pounds/minute. The magnetic engine has no moving parts but relies on a strong magnetic field to hold or release the shot. The built-in sensor measures shot density as it is discharged from the bottom of the valve. This measurement is converted to a 0-5 V dc signal for process control. 2.
Be sure that the valve can be easily removed to clear any debris or contaminants that may become lodged in the valve. A slide gate shut-off above the valve will allow valve removal without the need to empty the shot hopper. NOTICE: Failure to maintain shot quality may affect valve performance. Excessive dust, fines, broken shot, oil, water, etc., may reduce or completely stop shot flow. 5. Electrical Installation Refer to the data sheet included with the MagnaValve for wiring instructions.
output of the Pre-Amp is 5.00 Vdc. The Model 500 MagnaValve is normally factory calibrated to 0-1200 lbs/min. flow rate range. Other flow rates may be used when special conditions prevail; however, we recommend the standard range of 0-1200 because all production valves are precalibrated to that range. An emergency request for a spare valve calibrated to the standard range is usually handled within 24 hours. A non-standard calibration may require one week to allow access to the calibration.
7.4.1.1.1 The full-scale flow range is the maximum flow, in pounds per minute, required for the installation. To set the full-scale value into the Pre-Amp, use the following procedure: 7.4.1.1.2 Turn the Pre-Amp selector switch to position two. (position one is fully CCW). Position two is used to confirm proper zero setting of the Pre-Amp display and transmits a true 0.00 Vdc output signal.
Pre-Amp selector switch to the full CW position. The Pre-Amp will now show its fullscale value in its display and transmit a 5.00 Vdc signal to the shot flow controller input. CAUTION: The Auto – Zero must be disabled or it will attempt to suppress the controller display reading. The 362 Controller auto-zero switch is located inside the controller and is labeled "run-bypass". Place it in the bypass position for this procedure. The AC controller auto-zero switch is on its front panel.
SET ACTUAL CATCH 180 300 420 540 660 780 900 1020 1140 1200 7.4.3.2 Select either + or - Compensation 7.4.3.2.1 If the catch amounts are less than expected, you will need to select positive (+) polarity compensation. 7.4.3.2.2 If the catch test amounts are more than expected then you must select negative (-) polarity compensation. Only one polarity can be chosen for entire range. 7.4.3.3 Install Compensation Values The compensation values can now be installed into the Pre-Amp.
7.4.3.4 Catch and Weigh Test - Confirmation It will be necessary to repeat the above procedure to confirm calibration accuracy. Repeat the tests for all 10 segments. Additional adjustments to a single segment may be made if it is necessary. 8. Description of 12-Position Pre-Amp Switch The Pre-Amp selector switch is normally placed in the RUN position (fully CCW rotation) and this sends the actual flow rate signal to the pre-amp display.
valve driver modules are supplied with calibration instructions necessary to adjust the proper dc current. 11. Help IF IN DOUBT...................CALL FOR HELP TELEPHONE...................USA......1-574-256-5001 FAX...................................USA.......
