IDEAL INDUSTRIES 61-721 User manual

IDEAL INDUSTRIES, INC.
TECHNICAL MANUAL
MODEL: 61-721
MODEL: 61-722
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: TM61721-2
Revision: 2. Date: May 2002
Form number TM61721-2 Rev 2 May 2002

TABLE OF CONTENTS
Title Page
Introduction 1
Precautions and Safety Information 1
Safety Information 1
Specifications 2
General Specification 2
Voltage Specifications 2
Current Specifications 2
Resistance Specifications 2
Frequency Specification 2
Diode Specifications 2
Continuity Specifications 2
Performance Verification 3
Calibration 4
Replacing the Battery 5
Form number TM61721-2 Rev 2 May 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 61-721 and 61-722 contain parts that can be damaged by static discharge.
Follow the standard practices for handling static sensitive devices.
For additional information about IDEAL INDUSTRIES, INC. and its products,
and services, visit IDEAL INDUSTRIES, INC. 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
Use proper Fuse. To avoid fire hazard, use only the fuse type and rating specified for this product.
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 TM61721-2 Rev 2 May 2002

Page 2
General specifications
Characteristics Description
Display 3 ½ Digit LCD display
Display Count 2000 count, maximum reading 1999
Over range Indication “OL” is displayed
Sampling Rate 2.5 time/second
Operating Environment:
Relative Humidity
0°C to 50°C (32°F to 122°F)
0 ~ 75% RH
Storage Environment: -20°C to 60°C (-4°F to 140°F) at <80 relative humidity
Power source: 9V Battery (NEDA 1604)
Battery Live: 150 hours typical (alkaline)
Low Battery Indicator: symbol indicates low battery voltage
Dimensions 9.7” H X 3.7” W X 1.8” D
247mm H X 94mm W X 46mm D
Maximum Cable Size ACA 1.8” (46mm), DCA 1.9” (48mm)
Weight: Approximately 13.4 oz. or 430g including battery
RANGES and ACCURACY SPECIFICATION
Accuracy: Accuracy specifications at 23°C ±5°C (73.4°F ±9°F) less than 75% RH.
Temperature Coefficient: 0.1 times the applicable accuracy specification per °C
from 0°C to 18°C and 28°C to 50°C (32°F to 64°F and 82°F to 122°F)
Electrical Specification: Accuracy are ±(reading plus number of digits) at 23°C ±5°C <75% RH
Function Setting Ranges Accuracy
AC Voltage 200.0/600V at 50-60 Hz 1.2% ±4digits
AC Voltage 200.0/600V at 40-500 Hz 2.0% ±4 digits
DC Voltage 600V 0.5% ±1 digit
AC Current 20A/200.0A/1000A at 50-60 Hz 1.5% ±4 digit
AC Current 20A/200.0A/1000A at 40- 500 Hz 3.5% ±5 digit
Frequency 2K ~ 20KHz (Auto-ranging only)
Sensitivity 80Vrms
0.1% ±3 digits
Resistance 2.000K/200.0K 1.2% ±2 digit
Diode Check 1mA ±0.6mA 6.0% ±3 digits
Continuity Approximately < 30Ωon 2KΩ,
<100Ωon , {Diode/Continuity}
6.0% ±3 digits
AC Converter: Model 61-721 Average responding, RMS Calibrated to Sine Wave
AC Converter: Model 61-722 True RMS responding, RMS Calibrated to Sine Wave
Overload Protection: AC and DC Voltage: 600 VDC or VAC rms for no more than one minute.
Resistance, Diode check, Continuity: 600 VDC or VAC rms
Current: Not to exceed 1000 amp AC amps for
no more than one minute.
Form number TM61721-2 Rev 2 May 2002

Page 3
PERFORMANCE VERIFICAITONS
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 7.5V
DC. If the battery measures under 7.5V DC, replace the battery before beginning the performance test.
3. Input the values listed in Table 1
Table 1 Performance Verification
Function
Setting/Range
Input Low Limit High Limit
ACV 200 190V AC @ 50Hz 187.3 192.7
ACV 200 190V AC @ 500Hz 185.8 194.2
ACV 600 500V AC @ 50Hz 490 510
ACV 600 500V AC @ 500Hz 486 514
DCV 600 500V DC 496 503
ACA 20A 10A @ 50Hz 9.81 10.19
ACA 20A 10A @ 500Hz 9.60 10.40
ACA 200A 100A @ 50Hz 98.1 101.9
ACA 200A 100A @ 500Hz 96.0 104.0
ACA 1000A 1000A @ 50Hz 882.5 917
Hz 2.0 KHz @ 80V rms .996 1.004
Hz 20 KHz @ 80V rms 9.96 10.04
Ω2.000K 100 .986 1.014
Ω200k 100.0k 98.6 101.4
Diode Test 500mV DC .467 .533
Continuity Test 80Ω, Beep on
120Ω, Beep off.
Continuity Test 2K 20 ΩBeep on,
40 ΩBeep off
Form number TM61721-2 Rev 2 May 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 the screws holding the battery cover and one at the jaw.
4. Remove the case bottom using care not to damage the battery connector and leads
to the continuity beeper. (Beeper is attached to the bottom case cover.)
5. Using a calibrated meter ensure the battery measures a minimum of 7.5V DC.
If the battery measures under 7.5V DC, replace the battery.
Calibration Procedure
It is recommended that all IDEAL meters undergo the following calibration procedure on
an annual basis.
The class of calibrator or equipment should have an accuracy that exceeds, by an expectable ratio the
accuracy of this instrument.
Model 61-721
DCV Calibration
1. Set the function/range to the 600V DC.
2. Apply 600V DC to the V and COM input jacks.
3. Adjust R40 until display reads 600.
Disconnect the source from the meter.
ACA Calibration
1. Set the function/range to the 200A AC.
2. Apply 100A@50Hz to the meter, making sure the measured wire is in the center of the jaw.
3. Adjust R022 until display reads 100.0 +/-1digit.
Disconnect the source from the meter.
Model 61-722
DCV Calibration
1. Set the function/range to the 600V DC.
2. Apply 600V DC to the V and COM input jacks.
3. Adjust R43 until display reads 600.
Disconnect the source from the meter.
ACA Calibration
1. Set the function/range to the 200A AC.
2. Apply 100A@50Hz to the meter, making sure the measured wire is in the center of the jaw.
3. Adjust R022 until display reads 100.0 +/-1digit.
Disconnect the source from the meter.
Form number TM61721-2 Rev 2 May 2002

Page 5
Battery Replacement (refer to Figure 2)
1. Disconnect the test leads from any circuit under test and turn off meter.
2. Use a Philips head screwdriver to remove the two screws on battery cover.
3. Remove battery from compartment and unsnap the battery connector.
4. Install new 9V battery (NEDA #1604). An alkaline type is recommended.
5. Install new battery into compartment using care not to pinch or bind battery leads.
6. Reinstall battery cover.
Form number TM61721-2 Rev 2 May 2002