Hardy HI 3010 Filler/Dispenser Controller - Manual (Page 151)

135 CHAPTER 7
Troubleshooting
Assume a load like a relay with a coil of 15,000 ohms and of
5% of nominal drop-out. When the solid state relay is off,
there will still be 1/3 of the line voltages across the relay, so
it will not drop out. For the relay to have 5% of the line
across it, it and a parallel shunt resistor must be 20 times less
resistance than the 30K snubbing network, or 1.5K ohms.
Use less than a 1.67K ohm parallel resistor and now total
load is below 1.5K ohm or 80mA.
General Policies and Information
With over 70 years of industrial weighing experience and
products in the field, Hardy Instruments continues to design,
manufacture, install and support Hardy products worldwide.
The following paragraphs describe Hardy's customer support
services and equipment warranty.
NOTE: Before returning any product to Hardy Instru-
ments, call the Technical Service Department
listed below for a Return Authorization Number.
Have your company name, address, telephone,
equipment model number, S/N, and a brief
description of the problem ready to give to him.
In addition, please have Appendix A completed
and ready to FAX to us before calling.
FOR FURTHER INFORMATION CONTACT:
Technical Service Manager
Hardy Instruments, Inc.
9440 Carroll Park Drive, Suite 150, San Diego, CA 92121
Telephone: (858) 278-2900
FAX: (858) 278-6700
Web Site: http://www.hardyinst.com
E-Mail: [email protected]
Ordering Replacement Parts
Contact the Hardy Instruments Sales Department to order
replacement parts and option boards. Have your equipment
model number and serial number ready.
System Support
Technical Service is provided as follows:
• New system start-up: Ensure that the
installation is checked and correct; instru-
ments are calibrated, and operators
trained.
1. Service: Engineers are trained and
qualified to provide on-site installa-
tion, calibration, and maintenance.
2. On-site training: A Hardy Support
Representative can be scheduled to
train your operations and maintenance
personnel. This can be as simple as
basic load cell theory or as complete
as troubleshooting techniques which
allow you to service your equipment.
Warranty
A warranty problem may be handled by returning the prod-
uct to the factory for repair or replacement under warranty.