Specifications - Hameg Instruments HM 8123 Manual Del Usario

3 GHz Programmable Counter HM8123
All data valid at 23 °C after 30 minutes warm-up.
Input characteristics (Input A and B)
Connection: BNC socket
Frequency range:
0...200 MHz (DC-coupled)
10 Hz...200 MHz (1 MΩ, AC-coupled)
500 kHz...200 MHz (50 Ω, AC-coupled)
Input impedance: 1 MΩ II 30 pF or 50 Ω (switchable)
Attenuation: 1:1, 1:10, 1:100 (selectable)
Sensitivity: (normal triggering)
0...80 MHz 25 mV
80...200 MHz 65mV
20 Hz...80 MHz 50 mV
Trigger (programmable via encoder or software)
Attenuation: Trigger level:
1:1 0...±2 V
1:10 0...±20 V
1:100 0...±200 V
Max. input voltage:
Input 1 MΩ: 250 V (DC + AC
decreasing to 8 V
Input 50 Ω: 5 V
rms
Minimum pulse duration: <5 ns for single pulse
Input noise: (typ.) 100 µV
Auto trigger (AC coupling): trigger point: 50 % of peak-to-peak value
Trigger slope: Rising or falling
Filter: 100 kHz low-pass filter (switchable)
Input characteristics (Input C)
Connection: SMA socket
Frequency range: 100 MHz...3 GHz
Input sensitivity: up to 1 GHz: 30 mV
1...3 GHz:
Input impedance: 50 Ω nominal
Max. input voltage: 5 V (DC + AC
Input characteristics
External Reset Reference
Input impedance: 5 kΩ
Max. input voltage: ±30 V
Input sensitivity: -
High level: >2 V
Low level: <0.5 V
Min. pulse duration: 200 ns
Input frequency: -
Min. eff. gate time: -
Measurement functions
Frequency A/B/C; period duration A; width A; totalize A; RPM A; frequency
ratio A:B; time interval A:B; time interval A:B (average); phase A to B; Duty
cycle A; burst measurements
Frequency measurement (Inputs A, B, C)
Frequency range: 0...200 MHz (3 GHz)
LSD: (1.25x 10
Resolution: 1 LSD
Accuracy: ±(resolution/frequency ±time inaccuracy
±trigger error
Period duration measurement
Range: 5 ns...10,000 s
LSD: (1.25 x 10
Resolution: 1 LSD
Accuracy: ±resolution/period
±(trigger error
Totalization A
(manual control)
Range: 0...200 MHz
Min. pulse duration: 10 ns
LSD:

Specifications

1 count
Resolution: LSD
Accuracy: (resolution ±ext. gate time error
x frequency A)/total
Pulse resolution: 10 ns
Ext. gate error: -
HM8123E/121010 · C&E · Subject to change without notice · © HAMEG Instruments GmbH
HAMEG Instruments GmbH · Industriestr. 6 · D-63533 Mainhausen · Tel +49 (0) 6182 8000 · Fax +49 (0) 6182 800100 · www.hameg.com · [email protected]
(sine wave), 80 mV (pulse)
rms pp
(sine wave)
rms
(sine wave, auto trigger)
rms
Resolution:
1 mV
10 mV
100 mV
) from 0...440 Hz
peak
at 1 MHz
rms
(typ. 20 mV )
rms rms
100 mV (typ. 80 mV )
rms rms
)
peak
Gate/Arming
500 Ω 5 kΩ
±20 V ±30 V
typ. 2 V -
pp
- >2 V
- <0.5 V
- 50 ns
10 MHz -
- 20 µs
-8 s x frequency)/measurement time
2) /measurement time)
s x period)/measurement time
-8
/measurement time)
2)
(external control)
0...200 MHz
10 ns
±1 count
LSD
10 ns
100 ns
Time interval /Average time interval
(Input A = start; input B = stop)
LSD: 10 ns (0,1 ps...10 ns in „average" mode)
Resolution: 1 LSD
Accuracy: ±(resolution + trigger error
+ system error)/time interval
±time base uncertainty (system error: ≤4 ns)
Number of average: N = 1...25
N = 26...2,500
N = 2,501...250,000
N = 250,001...25,000,000 LSD = 10 ps
N = >25,000,000
RPM measurement
NPR presetting: 1...65,535 pulses per revolution
1)
Gate time: 330 ms fixed
LSD: 7.5x 10
Resolution: 1 LSD
Accuracy: ±(trigger error
Offset
Range: Covers the entire measurement range
Resolution: Same resolution as in normal measurement.
If the gate time is changed in the offset mode,
the offset resolution is the reference value
resolution or the current reading resolution
(whichever is less precise).
Gate time
Range: 1 ms...65 s
Resolution: 1 ms
External gate time: min. 20 µs
Time base
Frequency: 400 MHz clock rate; 10 MHz crystal
Temperature stability TCXO (standard): ±0,5x 10
(0...50 °C): OCXO (HO85): ±1x 10
Aging TCXO: <0.27 ppm per month, 0.05 ppm per day
OCXO: ≤±1x 10
External Reference: 10 MHz ±20 ppm
Miscellaneous
Interface: USB/RS-232 (HO820), IEEE-488 (optional)
Safety class: Safety Class I (EN61010-1)
Display: LCD display (83 x 21 mm)
Power supply: 115...230 V ±10 %, 45/60 Hz, CAT II
Power consumption: approx. 20 Watt
Operating temperature: +5...+40 °C
Storage temperature: -20...+70 °C
Rel. humidity: 5...80 % (non condensing)
Dimensions (W x H x D): 285 x 75 x 365 mm
Weight: approx. 4 kg
NPR=number of pulses per revolution
1)
2) Trigger error= ±noise input (V )/slew rate of the input signal
pp
Accessories supplied: Line cord, Operating manual, software
Recommended accessories:
HO85 OCXO (Installation only ex factory)
HO880 IEEE-488 (GPIB) Interface (galvanically isolated)
HZ13 Interface cable (USB) 1.8 m
HZ14 Interface cable (serial) 1:1
HZ20 Adapter plug
HZ24 Attenuators 50 Ω
HZ33 Test cable 50 Ω (BNC-BNC) 0.5 m
HZ34 Test cable 50 Ω (BNC-BNC) 1.0 m
HZ42 19'' Rackmount kit 2RU
HZ72 GPIB-Cable 2 m
® · DQS-certified in accordance with DIN EN ISO 9001:2008, Reg.-No.: 071040 QM08
S p e c i f i c a t i o n s
2)
LSD = 10 ns
LSD = 1 ns
LSD = 100 ps
LSD = 0.1 ps
-8 x revolution speed
/0.33) ±time base error
2)
-6
-8
-9 /day
Subject to change without notice
19