General Information Regarding; Universal Counter Hm8021; Specifications - Hameg Instruments HM8021-4 Manual

1.6 GHZ Universal Counter

SPECIFICATIONS

Valid at 23 degrees C after a 30 minute warm-up period
Measurement functions
Frequency A/C, Period A; Totalize A;
Pulse width (averaged); Totalize A during ext. gate
Input characteristics (Input A)
Frequency range:
0 – 150 MHz:
DC-coupled
10 Hz – 150 MHz: AC-coupled
Sensitivity: (normal triggering)
DC – 80 MHz: 20 mV
80 mV (pulse)
80 MHz – 150 MHz: 60 mV
20 Hz-80MHz (auto trig.) 50 mV
Minimum pulse width: 5ns
Input noise: 100 μV (typ.)
Coupling: AC or DC (switchable)
Input impedance: 1 MΩ II 40 pF
Attenuator: x 1, x 20 (switchable)
Max. input voltage:
0 to 440 Hz: 400 V (DC + AC
1 MHz:
decreasing to 8 V
Input characteristics (Input C)
Frequency range:
100 MHz – 1.6 GHz
Sensitivity:
to 1.3 GHz: 30 mV (typ. 20 mV)
to 1.6 GHz: 100 mV (typ. 80 mV)
Input impedance: 50Ω nominal
Coupling: AC
Max. input voltage: 5 V (DC + AC
Input characteristics (external gate)
Input impedance: 4.7 kΩ
Max. input voltage: ±30 V
High/low level: › 2 V/‹ 0.5 V
Min. pulse duration: 50 ns
Min. effective gate time: 150 μs
Frequency measurement (Input A)
LSD:
(2.5x10
time
Resolution: ±1 or 2 LSD
Period duration measurement
Range: 10000 sec to 66.6 ns
LSD: (2.5 x 10
time
Resolution:
±1 or 2 LSD
(sine wave)
rms
(sine wave)
rms
(sine wave)
rms
)
peak
rms
)
peak
-7
s x freq.)/measurement
-7 s x period)/measurement
S p e c i f i c a t i o n s
Totalize (manual / external gated)
Range: DC to 20 MHz
Min. pulse duration: 25 ns
LSD:
±1 count
Resolution:
LSD
Ext. gate error:
100 ns (in manual mode only)
Time interval (averaged)
LSD:
100 ns to 10 ps
Resolution:
1 or 2 LSD
Offset
Range:
covers the entire measurement
range
Gate time
(Gate time cannot be less than 1 period.)
Range:
100 ms – 10 s in 3 steps
External gate time:
min. 150 μs
Timebase
Frequency: 10 MHz clock
10 MHz crystal
Accuracy (between 10°C and 40° C): ±5 x 10
Aging: ±3 ppm/15 years
General information
Display: 8-digit 7-segment LED display with
7.65mm digit height, sign and
exponent
Power consumption:
approx. 7 Watt
Operating temperature: +5°C . . . +40°C
Storage temperature: –20°C . . . +70°C
Max. relative humidity: 5% ... 80% (without condensation)
Dimensions (W x H x D): 135 x 68 x 228mm
Weight:
approx. 0.6 kg
Values without tolerances are meant to be guidelines and
represent characteristics of an average instrument.
Included in delivery:
Universal Counter HM8021-4, operator's
Manual
Optional accessories:
HZ20 Adapter, BNC to 4mm banana
HZ24 Attenuators 50 Ω (3/6/10/20dB)
HZ33 Test Cable 50 Ω (BNC-BNC)0,5m
HZ34 Test Cable 50 Ω (BNC-BNC)1,0m
Subject to change without notice
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