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ND 6442-1 61-744 61-746 Instructions
Specifications:
Display:
3-3/4 digit LCD with 4000 counts
Polarity:
Automatic, positive implied, negative (-) polarity indication.
Overrange:
"OL" indication is displayed.
Measure Rate:
Samples 2 times per second, nominal.
Auto Power Off:
Approximately after 10 minutes of non-use.
Battery Life:
400 hours continuous with Alkaline (61-744)
250 hours continuous with Alkaline (61-746)
Low Battery Indication: The "
" is displayed when battery voltage drops below
+
operating level.
Power Supply:
(2) 1.5V "AAA" batteries (NEDA R03).
Includes an isolated battery compartment.
Accuracy:
Stated accuracy at 23°C ±5°C, <75% R.H.
Temperature
0.1 x (specified accuracy) per °C,
Coefficient:
(0°C to 18°C, 28°C to 50°C).
Altitude:
6561.7 ft. (2000m)
Operating Environment: 32°F to 122°F (0°C to 50°C) at < 70% R.H.
Storage Environment:
-4°F to 140°F (-20°C to 60°C) at < 80% R.H.
Jaw Opening:
Accepts a 1.50" (38mm) conductor
Dimensions:
8.0"H x 2.6"W x 1.5"D (203mm H x65mm W x37mm D)
Weight:
7.1 oz (200g) including batteries
Accessories included: Carrying Case, Test Leads, (2) 1.5V "AAA" batteries,
operating instructions.
Safety:
Complies with UL/IEC/EN: 61010-1, 61010-2-032,
61010-031 specifications, Cat III-600V.
C
US
Double Insulation
Instrument has been evaluated and complies with insulation category III (overvoltage
category III). Pollution degree 2 in accordance with IEC-644. Indoor use.
11/13/07
7:30 AM
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N12966
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Ranges & Accuracies:
AC Converter:
61-744 model is averaging sensing, rms calibrated
61-746 model is true rms sensing.
Accuracy:
Accuracy is specified as +/-(a percentage of the reading + a fixed amount) at
23°C±5°C (73.4°F ± 9°F), less than 75% relative humidity.
Temperature Coefficient: 0.1 times the applicable accuracy specification per
degree C from 0°C to 18°C and 28°C to 50°C (32°F to 64°F and 82°F to 122°F)
Range and
Function
Resolution
61-744
40.00A//400.0A/600.0A (50Hz - 60Hz)
1.7% + 6 digits
AC Current*
40.00A/400.0A/600.0A (60Hz - 400Hz)
3.0% + 6 digits
400.0V
(50Hz - 500Hz)
1.2% + 5 digits
AC Voltage
600V
(50Hz - 500Hz)
1.5% + 5 digits
DC Voltage 400.0V/600V
400.0Ω/4.000kΩ/40.00kΩ/
400.0k Ω
Resistance
4.000MΩ
40.00MΩ
Audible indication < 25Ω
Continuity
Response time: 500ms
* Accuracy stated for crest factor ≤ 3
Input Impedance is 10MΩ.
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Accuracy
Overload
Protection
61-746
1.7% + 10 digits
600AAC
3.0% + 10 digits
1.2% + 8 digits
600 VDC or AC rms
1.5% + 8 digits
0.5% + 2 digits
600 VDC or AC rms
1.0% + 4 digits
600 VDC or AC rms
1.5% + 4 digits
3.0% + 5 digits
N/A
600 VDC or AC rms
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