IDEAL 61-734 User manual

IDEAL INDUSTRIES, INC.
TECHNICAL MANUAL
MODEL: 61-734
The Service Information provides the following information:
•Precautions and safety information
• Specifications
• Performance test procedure
• Calibration and calibration adjustment procedure
• Basic maintenance (replacing the battery)
Form number: TM61734
Revision: 1. Date: Oct 2002
Form number TM61734 Rev 1 October 2002

TABLE OF CONTENTS
Title Page #
Introduction 1
Precautions and Safety Information 1
Safety 1
Specifications 2
General Specification 2
Voltage Specifications 2
Resistance Specifications 2
Current Specifications 2
Performance Tests 3
Testing the Voltage Function 3
Testing the Resistance Function 3
Testing the Amp Function 3
Calibration 4
DCV, ACV, ACA, Resistance Functions 4
Calibration Adjustment Points 4
Replacing the Battery 5
Form number TM61734 Rev 1 October 2002

Page 1
Introduction
Warning
To avoid shock or injury, do not perform the verification tests or calibration
procedures described in this manual unless you are qualified to do so.
The information provided in this document is for the use of qualified personnel only.
Caution
The 61-734 serials contain parts that can be damaged by static discharge.
Follow the standard practices for handling static sensitive devices.
For additional information about IDEAL INDUSTRIES and its products,
and services, visit IDEAL INDUSTRIES web site at:
www.idealindustries.com
SAFETY
Review the following safety precautions to avoid injury and prevent damage to this product or any
products connected to it. To avoid potential hazards, use the product only as specified.
CAUTION.
These statements identify conditions or practices that could result in damage to the equipment or other
property.
WARNING.
These statements identify conditions or practices that could result in personal injury or loss of life.
Specific precautions
Do not operate without covers. To avoid personal injury, do not apply any voltage or current to the
product without the covers in place.
Electric overload. Never apply a voltage to a connector on the product that is outside the range specified
for that connector.
Avoid electric shock. To avoid injury or loss of life, do not connect or disconnect probes or test leads
while they are connected to a voltage source.
Do not operate in wet/damp conditions. To avoid electric shock, do not operate this product in wet or
damp conditions.
Form number TM61734 Rev 1 October 2002

Page 2
General specifications
Characteristics Description
Display 3 ½ Digit LCD display
Display Count 4000 count, maximum reading 3999
Overrange Indication “OL” is shown on the display
Sampling Rate 2.5 times/second
Operating Environment:
Relative Humidity
0°C to 40°C
relative humidity 85% or less without condensation
Storage Environment: -20°C to 60°C at <85% relative humidity
Power source: Two R03 (DC 1.5V) batteries
Battery Live: 200 hours typical
Low Battery Indicator: symbol indicates low battery voltage
Dimensions 184mmL X 44mmW X27mmD
Weight: Approximately 190g including battery
RANGES and ACCURACY SPECIFICATION
Function Setting Ranges Accuracy
AC Voltage 400.0/600 V 2.0% ± 5 digits
DC Voltage 400.0/600 V 1.5% ± 5 digits
AC Current 40.00/400.0A 2.0% ± 6 digits
Resistance 400.0/4000Ω2.0% ± 5 digits
AC Converter: Average responding, RMS calibrated to sine wave
Overload Protection: AC and DC Voltage: 720VDC or AC rms for 10 seconds.
AC current: 480AAC for 10 seconds.
Resistance: 300VDC or AC rms for 10 seconds.
Form number TM61734 Rev 1 October 2002

Page 3
PERFORMANCE VERIFICATIONS
Perform the following analysis. If the meter conforms to the limits listed in Table 1 the meter is
functioning correctly. If the meter does not conform to any of the listed limits the calibration procedure
must be performed.
Performance Verification Preparation
1. Turn on the calibrator, allow calibrator to warm up. Temperature stabilization
should be reached after 30 minutes.
2. Remove battery cover and using a calibrated meter to ensure the battery measures a minimum of 2.3V
DC. If the battery measures under 2.3V DC, replace the battery before beginning the performance test.
3. Input the values listed in Table 1
Table 1 Performance Verification:
Function Setting
Input Low Limit High Limit
ACV 400 350.0V AC @ 50 or 60Hz 342.5 357.5
ACV 600 550V AC @ 50 or 60 Hz 534 566
DCV 400 350.0V DC 344.3 355.7
DCV 600 550V DC 537 563
ACA 40 35.00A AC @ 50 or 60Hz 34.24 35.76
ACA 400 350.0A AC @ 50 or 60Hz 342.4 357.6
Ω400 350.0 ohms 342.5 357.5
Ω4k 3500 ohms 3425 3575
Form number TM61734 Rev 1 October 2002

Page 4
CALIBRATION
Calibration Preparation
1. Turn on the calibrator, allow calibrator to warm up. Temperature stabilization should be reached after
30 minutes.
2. Disconnect the test leads and turn the range switch to “OFF”.
3. Remove screws #8 and #10 holding the bottom case cover (refer Figure 2).
4 Remove the two batteries and connect outputs from DC power supply (DC 3V) to the battery snap.
Calibration Procedure
It is recommended that all IDEAL meters undergo the following calibration procedure on
an annual basis.
DC Voltage Calibration
1. Set the function / range to VDC
2. Connect the calibrator to the V and COM inputs on the meter.
3. Output 200.0V DC.
4. Adjust VR3 until the display reads 200.1 +/-0.1
AC Voltage Calibration
1. Set the function / range to VAC
2. Connect the calibrator to the V and COM inputs on the meter.
3. Output 200.0V AC.
4. Adjust VR4 until the display reads 200.1 +/-0.1
Ohms Calibration
1. Set the function / range to OHM
2. Connect the calibrator to the V and COM inputs on the meter.
3. Output 3000 ohms.
4. Adjust VR2 until the display reads 3000 +/-1
AC Current Calibration
1. Set the function / range to 400A AC
2. Clamp the unit to 200A/50 or 60Hz AC Source.
3. Adjust VR1 until the display reads 200.1 +/-0.1
Calibration of the 61-734 is complete.
Figure 1 – Component location on the printed circuit board of 61-734
Form number TM61734 Rev 1 October 2002

Page 5
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Figure 2
Battery Replacement (refer to Figure 2)
1. Disconnect the test leads from any circuit under test and turn off meter.
2. Remove screw #9, and remove the battery cover 5.
3. Remove batteries from compartment.
4. Install two new 1.5V batteries (R03).
5. Mount and screw the battery compartment cover.
Form number TM61734 Rev 1 October 2002