Aim TTi PFM3000 Handleiding
Aim TTi
Meetapparatuur
PFM3000
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PFM3000
Portable Frequency Meter
INSTRUCTION MANUAL
1
Table of Contents
Introduction 1
Specification 2
Safety 4
Operation 5
Calibration and Maintenance 6
Securite 7
Fonctionnement 8
Calibration et Entretien 9
Sicherheit 10
Betrieb 11
Eichung und Wartung 12
Sicurezza 13
Funzionamento 14
Taratura e Manutenzione 15
Seguridad 16
Functionamiento 17
Calibración y Mantenimiento 18
Introduction
The PFM3000 is a portable frequency eter ith a large 1.5mm m w 1 8½-digit liquid rystal display c
(LCD). The frequency ange is 3Hz o 3GHz and measurement capabilities nclude frequency r t i and
period with push easure and auto power own functions. -t -mo -d
A d function is ailable which allows eading o be frozen and displayed hol av any r t indefinitel . y
Input A s i a high impedance input 1M )or ( Ω frequencies n the range 3Hz o 125MHz. i t Input s B i a
nominal input 50Ω for requencies n the range 80MHz o 3GHz. f i t
The instrument es a reciprocal ounting echnique to provide high resolution at l requencies. us c t al f
At least 7 significant gits nswer e produced per econd of easurement ime. di of a ar s m t
A ow ass ilter an be selected to ensure stable readings ow requencies. l p f c at l f
Indicators how easurement unction, easurement battery and the units he answer s m f m time, w lo of t
which may be Hz, Hz, Hz, k M ns, or us, ms s.
The low er ign gives ypically 20 hours tery ife from 9 volt kaline cell. se of he pow des t bat l a al U t
power aving h easure functions ill avoid wasting battery ife by omatically witching s pus -t -mo w l aut s
the unit f ter a short ime. of af t
The instrument a robust ABS ase. has c
2
Specification
MEASUREMENT FUNCTIONS
Frequency (Range A)
Frequency Range: 3Hz to >125MHz
Resolution: 10
-7
Hz to 100Hz (see below)
Frequency (Range B)
Frequency Range: 80MHz to >3000MHz
Resolution: 1Hz to 10kHz (see below)
Period (Range A only)
Period Range: 8ns to 330ms
Resolution: 10
-7
ns to 1us (see below)
Measurement time
Selectable as 10s, 1s or 0.3s.
Resolution
The displayed resolution depends upon the measurement time and the input frequency. Eight or
nine digits are displayed for a 10 second measurement time. Six, seven or eight digits are displayed
for the shorter measurement times depending on input frequency. Usable resolution can be further
reduced by noise, especially at low frequencies.
Accuracy
Measurement accuracy is the sum of timebase accuracy and measurement resolution plus one
count.
TIMEBASE
Crystal Oscillator Frequency:
10MHz
Initial Oscillator Adjustment Error: ± 2ppm (closed case adjustment 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 FUNCTIONS
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, with the Hold indicator on, 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 stable -
readings at low frequencies.
Product specificaties
| Merk: | Aim TTi |
| Categorie: | Meetapparatuur |
| Model: | PFM3000 |
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