Wavetek DM7, Руководство оператора

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General Specifications
Display: 3 1/2 digit LCD, 1999 counts
Polarity Indication: Automatic,
positive implied, negative indicated
Overrange Indication: “1” is displayed
with all other digits blanked
Low Battery Indication:
Display Update Rate: 2/3 per second,
nominal
Operating Temperature: 0°C to 50°C,
0 to 70% Relative Humidity
Storage Temperature: -20°C to 60°C,
0 to 80% RH with battery removed
from meter
Power: Standard 9-volt battery, NEDA
1604, JIS 006P, IEC 6F22
Battery Life (Typical): 500 hours
alkaline, 300 hours carbon-zinc
Dimensions (H x W x D): 5.45 x 3.1 x
1.55 inches, (14 x 7.8 x 4 cm)
Weight (including battery): 8.2 ounces
(215 grams)
Accessories: Test leads (attached),
holster, battery, and operator’s
manual.
Safety: Meets EN61010-1, Cat II;
600V
EMC: Meets EN50081-1, EN50082-2
EMC:
This product complies
with requirements of the
following European Community
Directives: 89/336/EEC (Electromagnetic
Compatibility) and 73/23/EEC (Low
Voltage) as amended by 93/68/EEC (CE
Marking).
However, electrical noise or intense
electromagnetic fields in the vicinity of
the equipment may disturb the
measurement circuit. Measuring
instruments will also respond to
unwanted signals that may be present
within the measurement circuit. Users
should exercise care and take appropriate
precautions to avoid misleading results
when making measurements in the
presence of electronic interference.
Electrical Specifications
Accuracies at 23°C ± 5°C, <75% RH.
DC Volts
Ranges: 2, 20, 200*, 600*V
Accuracy, all Rgs: ±(0.8% rdg +1dgt)
Resolution, 2V Range: 1mV
Input Impedance: 1M
Ω
OL Protection: 600VAC
RMS/1000VDC (30 seconds)
* HV appears in display
AC Volts (40-400Hz) – A ccuracies
apply to sine wave inputs only
Ranges: 200*, 600*V
Accuracy, all ranges: ±(1.5%rdg +
4dgt)
Input Impedance: 450k
Ω
OL Protection, all ranges: 600VAC
RMS/1000VDC (for 30 seconds).
* HV appears in display
DC Current
Ranges: 200mA
Accuracy: ±(2.0% Rdg + 1 dgt)
OL Protection: 200mA/250V fast
acting glass fuse (5 x 20mm)
Resistance
Ranges: 2, 20, 200k
Ω
, 2M
Ω
Accuracy, all rgs: ±(1.0% rdg + 3dgt)
OL Protection, all ranges: 250VDC or
AC RMS
Open Circuit Voltage: 3VDC in all
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SPECIFICATIONS
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