Electronics FC - Manual (Page 6)

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a. SERVO GAIN - This adjustment sets the gain of the error amplifier over a range of 1% to
100%. Most systems may operate at 50% (full clockwise) for high gain. If a system is unsta-
ble, then reduce the gain to 25%.
b. SERVO RESET - This adjustment determines the speed at which the output signal increases
to achieve desired flow rate. A 75% value is set at factory for typical applications. Turning
the servo reset clockwise will make it respond faster and turning it counter-clockwise will
make it respond slower.
If the shot flow rate is not steady it will be necessary to perform a simple test. Place the “Servo”
switch (2-11) down in its "off" position. Enable the control and slowly increase the set point from 0%
until flow display reads your desired value. If the shot flow rate is still unstable then system itself is
unstable. Since the control is in manual mode, if flow rate is unstable, then the machine itself is
causing a problem, not the servo adjustments (The servo is off.). Refer to the Trouble-Shooting
Section 12.
7. SPARE PARTS LIST
There are no spare parts for the FC controller. A spare controller should be purchased for an emer-
gency or Electronics Inc. should be contacted for repair service.
8. WARRANTY
a. Electronics Incorporated warrants this product to be free from defect in material and work-
manship for a period of two years from the date of shipment. Defective units must be re-
turned to Electronics Incorporated with shipping costs prepaid. Call for a Return Authoriza-
tion Number and shipping instructions. Electronics Incorporated will repair or replace a defec-
tive unit at its option. No consequential liability is assumed. No other warranty, including
merchantability or fitness for purpose, applies or is expressed or implied.
b. Warranty work is only available at the factory. On-site service or start-up assistance is avail-
able at extra cost to the customer. See Section IX.
c. Caution: Any customer attempts to modify or repair the product during the warranty period will
terminate the warranty. Standard technician labor rates will be quoted prior to repair work.
9. SERVICE / START-UP ASSISTANCE
Service is an option available at the time of purchase or as required by customer. A purchase order
is required prior to making a service call.
10. UPGRADES - REVISIONS
Design improvements are constantly being made to our products. Please contact Electronics Incor-
porated for details. When ordering spare units, please refer to model number and serial number of
each unit.
11. AUTO-ZERO FEATURE
An auto-zero feature is available to maintain a true zero reading during the no-flow condition. This
circuit monitors the flow signal and forces it to zero whenever the "Enable" is absent. A blue LED
indicates that the auto-zero is active.