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- INPUT SPECIFICATIONS:
+ Input A:
Input Impedance: 1MW//20pF (AC coupled)
Frequency Range: <3Hz to >125MHz
Sensitivity: Sinewave - 15mVrms 10Hz-125MHz
+ Input B:
Input Impedance: 50W (AC coupled)
Frequency Range: <80MHz to >3000MHz
Sensitivity: Sinewave - 15mVrms 80MHz-2GHz, 50mVrms to 3GHz
+ Maximum Input Voltage:
Input A and Input B: 30Vdc; 30Vrms 50Hz/60Hz reducing to 1Vrms above 1MHz
- MEASUREMENT FUNCTIONS:
+ Frequency (Range A):
Frequency Range: 3Hz to 125MHz
Resolution: 10-7Hz to 100Hz (see Note)
+ Frequency (Range B):
Frequency Range: 80MHz to >3000MHz
Resolution: 1Hz to 10kHz (see Note)
+ Period (Range A only):
Period Range: 8ns to 330ms
Resolution: 10-7ns to 1us (see Note)
+ Measurement Time:
Selectable as 10s, 1s or 0.1s. (Note that for the 0.1s setting the effective measurement time is 0.3 seconds).
+ Resolution:
The displayed resolution depends upon the measurement time and the input frequency.
Eight digits (or nine using an overflow indication) are displayed for a 10s measurement time.
Seven or eight digits are displayed for a 1s measurement time, and six or seven digits for 0.1s depending upon the input frequency.
Usable resolution may be further reduced by noise, particularly at low frequencies.
+ Accuracy:
Measurement accuracy is the sum of the timebase accuracy and measurement resolution plus one count.
- TIMEBASE:
Crystal Oscillator Frequency: 10MHz
Initial Oscillator Adjustment Error: ± 2ppm (closed-case adjustable by user)
Oscillator Temperature Coefficient: Typically less than ± 0.3ppm/°C 18°C to 28°C, ±10ppm –20°C to 70°C
Oscillator Ageing Rate: <± 5ppm/year
- OPERATING FACILITIES:
+ Press to measure:
With the power switch off, pressing any of the function select keys will power the instrument up in the corresponding function.
The instrument will automatically switch off 15 seconds after the last key press.
+ Hold:
Pressing the Hold key will stop further measurements being made and the current measured value will remain in the display until the Hold key is pressed again.
+ Noise filter:
The Filter key controls a low pass filter, with a cut-off frequency of about 50kHz, to ensure more stable readings at low frequencies.
+ Signal activity indicator:
When no input signal is detected the Trig indicator will be off, indicating that no measurement is possible.
The gate time indicator flashes until the first measurement interval is complete.
- DISPLAY:
No. of Digits: 8.5 digits (188888888)
Size of Digits: 11.5mm (0.45”)
Annunciators: 15 annunciators
- POWER REQUIREMENTS:
Battery Type: 9V PP3 alkaline
Battery Life: Typically 20 hours
Low Batt. Indicator: ‘Bat’ shows in display when approximately 10% of battery life remains
- GENERAL:
Operating Range: +5°C to +40°C, 20% to 80% RH
Storage Range: -20°C to +60°C
Environmental: Indoor use at altitudes up to 2000m Pollution Degree 2
Size: 81mm x 178mm x 30mm (W x L x D)
Weight: 190gms excluding battery
Electrical Safety: Complies with EN61010-1
EMC: Complies with EN61326
