7 service, 1 general, 2 basic operation – AMETEK 2001RP User Manual

Page 63: 1 poor output voltage accuracy, 2 poor output voltage regulation, 7service

User and Programming Manual - Rev R

2001RP

Service

7.1 General

This section describes suggested maintenance and troubleshooting procedures. The
troubleshooting procedure is divided into two sections. The first section deals with basic
operation and connection of the equipment. The second section requires opening the unit and
using the LED indicators and a simple multimeter to troubleshoot the unit down to the module
level. Only a qualified electronic technician should attempt this level of troubleshooting.

7.2 Basic Operation

Table 7-1: Basic Symptoms

PARAGRAPH

PROBLEM

7.2.1

Poor Output Voltage Accuracy

7.2.2

Poor Output Voltage Regulation

7.2.3

Distorted Output

7.2.4

Unit Shuts Down After 3-5 Seconds

7.2.5

No Output and no lights on front panel

7.2.6

No output but “Display” on front panel is on

7.2.7

Fault Lamp on

7.2.8

Can’t program AC Power System on GPIB/RS232

7.2.1 Poor Output Voltage Accuracy

If the power source exhibits poor programmed voltage accuracy, the following item may be at
fault:

Table 7-2: Poor Output Voltage Accuracy

CAUSE

SOLUTION

The calibration is incorrect.

Calibrate the output.

7.2.2 Poor Output Voltage Regulation

If the AC Power Source exhibits poor voltage regulation the following item may be at fault:

Table 7-3: Poor Output Voltage Regulation

CAUSE

SOLUTION

The Remote Sense lines are not
connected at the same point monitored by
the external voltmeter used for load
regulation check.

Connect AC voltmeter to Remote Sense
lines on the Rear Panel Power Output
terminal strip.