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Amprobe 37XR-A Bedienungshandbuch Seite 20

Digital multimeter
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FREQUENCY
Ranges: 100Hz, 1000Hz, 10kHz, 100kHz,
1000KHz, 10MHz, (Auto/Manual ranging )
Resolution: 0.01 Hz
Accuracy: ±(0.1 % rdg + 5 dgts)
Sensitivity: 3Hz to 1MHz: >1.5 V rms; 1MHz
to 10MHz: >2 V rms, <5 V rms
Minimum input range: 100Hz range > 3 Hz,
1000Hz range > 30 Hz
Minimum pulse width: > 25 ns
Duty cycle limits: > 30 % and < 70 %
Overload protection: 1000 V dc or 750 V ac
rms
DUTY CYCLE
Ranges: 0 to 90 %
Resolution: 0.01 %
Pulse width:>10 us
Frequency range:
0% to 10% (40 Hz to 20 kHz)
10% to 90% (40 Hz to 990 Hz)
Accuracy: (5 V logic ) ±(2.0 % rdg + 20
dgts)
Overload protection: 1000 V dc or 750 V ac
rms
LOGIC TEST
Logic Type: TTL, CMOS
Thresholds Logic 1 ( Hi ):
TTL : 2.8 V ± 0.8 V, CMOS: 4 V ± 1 V
Thresholds Logic 0 ( Lo ):
TTL : 0.8 V ± 0.5 V, CMOS: 2 V ± 0.5 V
Test Voltage: TTL: 5 V dc, CMOS: > 5 V dc
and < 10 V dc
Frequency Response: 20 MHz
Pulse Width: 25 ns min
Duty Cycle: >30 % and <70 %
Indication: 40 ms beep at logic 0 ( LO )
Overload protection: 1000 V dc or 750 V ac
rms
dBm
Ranges: -13dBm to + 50dBm
Resolution: 0.01 dBm
Accuracy:
±0.7 dB + 8 dgts ( 45 Hz to 5 kHz )
±2.5 dB + 8 dgts ( 5 kHz to 10 kHz )
Reference impedance: 50
Input protection: 10 M
Overload protection: 1000 V dc or 750 V
ac rms
CONTINUITY
Audible indication: Less than 40
Response time: 100 ms
Overload protection:1000 V dc or 750 V
ac rms
DIODE TEST
Test current: 1.0 mA (approximate)
Accuracy: ±(1.5 % rdg + 5 dgts)
Resolution: 1 mV
Open circuit volts: 3.0 dc typical
Overload protection:
1000 V dc or 750 V ac rms
mA, 10A jack: Input warning detects
wrong function selection
AUXILIARY FEATURES
MIN/AVG/MAX: Displays the maximum,
minimum, or average reading following
a MIN, MAX, or AVG selection.
DATA HOLD: Freeze the latest reading
on the display.
REL: Initiates relative measurements.
PEAK : Record the peak+ or peak
value in a measurement. It is usable
with ac voltage, ac current
measurements. If the pressed time >2
seconds, the PEAK function will enter
the calibration mode; the LCD will show
CAL and the internal buffer will
remember the internal offset voltage
then go back to the measure mode.
RANGE: Initiates manual-range
selection.
Backlight: Backlight auto-off approx. 60
seconds
TTL/CMOS: Shift LOGIC TTL or CMOS
Shift: Shift dBm, ACA, continuity, DUTY
CYCLE
REPLACEMENT PARTS
TL36
Test Lead Set with Alligator clips
FP500 mA fuse - Fuse Pack 0.5A/1000V
(4 each)
FP100 10A fuse - Fuse Pack 10A/1000V
(2 each)
XR-H2 Magne-Grip
and strap
13
®
Holster, clip, magnet,

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