Electronics 590-24 - Manual (Page 15)

15
9. CALIBRATION
Calibrate the MagnaValve by a catch-and-weigh test. To calibrate allow Media to flow
through the valve for a timed period, usually one minute. Weigh the shot and compare the
weight to the requested amount. Make fine adjustments at the MagnaValve Gain adjustment
knob. Note: Full-scale outputs of the valve for kilogram calibrations or pound calibrations are
10Vdc.
Change the flow range from 20lbs/min to 30lbs/min just by typing 30 instead of 20.
The following Advanced Calibration Procedure explains how to change the calibration
range.
Advanced Calibration
Introduction
Use the model PA-24 program cable (Part #980097) on the 24 Volt series Rev. A Magna-
Valves and the model 599-24 Rev. A series of shot flow sensors. This module is user-
configurable using any computer with the Windows operating system. The user can make
calibration tests to establish a linear output.
A special data cable from Electronics Inc. will provide the link to the laptop. To communicate
with the valve, use any serial COM port cable to connect your computer to our special data
cable.
Hooking up RS-232 COM port
1.Use the special PA-24-DC cable from Electronics Inc.
2.Connect a standard serial cable to the COM port on your PC.
3.Connect the other end of serial cable to the special data cable.
4.Run HyperTerminal from Windows.
(Programs>Accessories>Communications>HyperTerminal.)
5.Use these settings:
Baud=19200
PARITY=N
BITS=8
Hardware=None