IDEAL 61-797 User manual

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#61-797
Digital Multimeter
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TABLEOFCONTENTS
1.Introduction
Precautions and Safety Information
Symbols
Safety
2.Specifications
General Specifications
Electrical Specifications
Required Equipment
3.Basic Maintenance
Battery and Fuse Replacement
4. Performance Tests
5. Calibration Procedure

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1. Introduction
Warning
To avoid shock or injury, do not perform the verification tests or calibration
procedures described in the manual unless you are qualified to do so.
The information provided in this document is for the use of qualified personnel only.
Caution
The meter contain parts that can be damaged by static discharge.
Follow the standard practices for handling static sensitive devices.
For additional information about APPA TECHNOLOGY CORP.
and its products, and services, visit APPA TECHNOLOGY
CORP. web site at:
www.appatech.com
Precautions and Safety Information
Use the Meter only as described in the Service Manual. If you do not do
so, the protection provided by the Meter may be impaired. Read the
“Safety Information” page before servicing this product.
In this manual, a Warning identifies conditions and actions that pose
hazard (s) to the user; a Caution identifies conditions and actions that
may damage the Meter or the test instruments.
The Symbols
The symbols used on the Meter and in this manual are explained in
Table 1.
Table 1-1. The Symbols

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SAFETY
Review the following safety precautions to avoid injury and prevent damage to this
product or 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 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.

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2. Specifications
General Specifications
Maximum voltage applied to any terminal :
600 V ac rms or dc.
Display : 4000 counts.
Polarity Indication :
Automatic, positive implied, negative indicated.
Overrange Indication : OL
Batteries Life :
Resistance Measurements : Tester can perform at least 2600
earth-bond resistance measurements with new alkaline batteries
at room temperature. These are standard tests of 1Ω with
a duty cycle of 5 seconds on and 25 seconds off.
Insulation test: Tester can perform at least 1100 insulation tests
with new alkaline batteries at room temperature.
These are standard tests of 1 MΩ at 1000 V with a duty cycle
of 5 seconds on and 25 seconds off.
Low Batteries Indication : "" is displayed when the batteries
voltage drops below operating voltage.
Low battery voltage : Approx. 4.5V
Auto Power Off : Approx 20 minutes.
Operating Ambient : Non-condensing ≦10°C,
11°C ~ 30°C (≦80% RH),
30°C ~ 40°C (≦75% RH),
40°C ~ 50°C (≦45%RH)
Storage Temperature :
-20°C to 60°C , 0 to 80% R.H. (batteries not fitted)
Temperature Coefficient :
0.15 x (Spec.Accy)/°C, < 18°C or > 28°C .
Measure : Samples 2 times per second nominal.
Altitude : 6561.7 ft (2000m)
Safety : Complies with EN61010-1, UL61010-1,IEC 61010-1,
V/Ω : CAT.IV. 600V.
Compliance to EN 61557 : IEC61557-1, IEC61557-2,
IEC61557-4, IEC61557-10
Weight : (630g) including battery.
Dimensions (W x H x D) :
95mm x207mm x 52mm with holster.

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Accessories : Battery (installed), Test leads and user manual.
Power Requirements : 1.5V x 4 IEC LR6 or AA size.
Pollution degree : 2
EMC : EN 61326-1
Shock vibration : Sinusoidal vibration per MIL-T- 28800E
(5 ~ 55 Hz, 3g maximum).
Drop Protection :
4 feet drop to hardwood on concrete floor.
Indoor Use.

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Electrical Specifications
Accuracy is ±(% reading + number of digits) at 23°C ± 5°C
< 80%RH.
Voltage Measurement
Start measuring voltage : ≧ AC 0.6V.
Over voltage protection : 600V rms or ac.
Input Impedance : 3MΩ // less than 100pF.
CMRR / NMRR : (Common Mode Rejection Ratio)
(Normal Mode Rejection Ratio)
VAC : CMRR > 60dB at DC, 50Hz / 60Hz
VDC : CMRR > 100dB at DC, 50Hz / 60Hz
NMRR > 50dB at DC, 50Hz / 60Hz
AC Conversion Type :
AC Conversions are ac-coupled, true rms responding, calibrated to the rms value of a
sine wave input.
For non-sine wave add the following Crest Factor corrections:
For Crest Factor of 1.4 to 2.0, add 1.0% to accuracy.
For Crest Factor of 2.0 to 2.5, add 2.5% to accuracy.
For Crest Factor of 2.5 to 3.0, add 4.0% to accuracy.
CF 3 @ 330V
2 @ 500V

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Earth-bond resistance Measurement
*<1.00Ω add 3dgt
Open Circuit Test Voltage : >4.0V,<8V
Short Circuit Current : >200.0mA
Live Circuit Detection: if≧2V ac/dc at inputs, test inhibited.
Insulation resistance Measurement
Test Voltage vs. Maximum resistance range :
50V/50.0MΩ,100V/100.0MΩ,250V/250.0MΩ,500V/500MΩ
and 1000V/20.0GΩ.
Test Voltage vs. Minimum resistance (with test
current=1mA) :
50V/50kΩ,100V/100kΩ,250V/250kΩ,500V/500kΩ and
1000V/1MΩ.
Test Voltage Accuracy : -0%,+20%
Short Circuit Test Current:1mA(nominal)
Auto discharge function : discharge time<1 sec for C≦1µF
Maximum Capacitive load : Operable with up to 1µF load
Live Circuit Detection : if≧30V ac/dc at inputs, test inhibited

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Required Equipment
Required equipment is listed in Table B. If the recommended models
are not available, equipment with equivalent specifications may be
used.
Repairs or servicing should be performed only by qualified personnel.
Table 2-1
Equipment Required Characteristics Recommended Model
Calibrator AC Voltage Range: 0 - 600 V
Frequency Range: 50 Hz - 500 Hz
Accuracy: +/- 0.1%(Basic)
DC Voltage: 0 - 600 V
Accuracy: +/-0.1%(Basic)
DC Current: 0-400mA
Accuracy: +/-0.1%(Basic)
Fluke 5700 or Wavetek
9100 Calibrator
DMM DC Voltage: 0 - 1000 V
Accuracy: +/-0.5%(Basic)
DC Current: 0-400mA
Accuracy: +/-0.5%(Basic)
High voltage
Divider
DC Voltage Range: 1 kV -5 kV
Accuracy: 1%
Division Ratio: 1000:1
Input resistance：1000 MΩ
Fluke 80k-6
High voltage
Resistor
(>1kV)
Suggest the insulation tester
to use physical high voltage
resistors at ±5% tolerance
as listed：50kΩ, 100kΩ,
250kΩ, 500kΩ, 1MΩ, 40M
Ω, 400MΩ, 4GΩ, 18GΩ
To verify the actual
resistance value by Fluke
8508. Then, use the actual
value to calibrate the
insulation meter.
Resistor Suggest the insulation tester
to use physical high voltage
resistors at ±1% tolerance
as listed：2Ω(0.5W),36
Ω,360Ω,3.6kΩ,36kΩ
Same as above

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3. Basic Maintenance
To avoid shock, remove the test leads and any input signals before opening the case or
replacing the battery.
Battery and Fuse Replacement
Refer to the following figure to replace fuse and the batteries: