Portable frequency counter PFM1300
Thurlby Thandar Instruments
- Pays
- Royaume Uni
- Fabricant / Marque
- Thurlby Thandar Instruments
- Année
- 1995
- Catégorie
- Appareils de mesure et de dépannage (matériel de labo)
- Radiomuseum.org ID
- 305339
-
- alternative name: Thandar Electronics || TTI
- Gammes d'ondes
- Bandes en notes
- Tension / type courant
- Piles sèches / 9 Volt
- Haut-parleur
- - - Pas de sortie basse fréquence
- Matière
- Plastique moderne (pas de bakélite, ni de catalin)
- De Radiomuseum.org
- Modèle: Portable frequency counter PFM1300 - Thurlby Thandar Instruments
- Forme
- Portable, appareil de poche. Taille < 20cm
- Dimensions (LHP)
- 81 x 30 x 178 mm / 3.2 x 1.2 x 7 inch
- Remarques
-
The TTi PFM1300 is a portable battery-operated frequency counter with a range of 5 Hz to 1.3 GHz that uses a reciprocal counting technique to achieve 7 significant digits of frequency or period answer per second of measuring time.
The timebase has a 10 MHz crystal oscillator with an initial adjustment tolerance of +-2 ppm. The temperature coefficient is typically less than +-0.3 ppm per degree C, and the ageing rate is less than +-5 ppm per year.
A user-accessible trimmer on the rear of the case allows recalibration without dismantling.
8-digit LCD display.
Trig indicator.
User-selectable 50 kHz low pass filter.
Hold function.
BNC input sockets.Input A
5 Hz to 25 MHz.
1 Mohm/25 pF, AC coupled.
Resolution 0.0001 mHz to 10 Hz.
Accuracy +-(1 digit + timebase accuracy).
Sensitivity sinewave 15 mV rms, 10 Hz to 20 MHz.
Maximum input 30v rms, reducing to 1v rms above 1 MHz.
Period measurement available, measurement time 0.1, 1, or 10 seconds.Input B
20 MHz to 1.3 GHz.
50 ohms nominal.
Resolution 1 Hz to 1 kHz.
Accuracy +-(1 digit + timebase accuracy).
Sensitivity 10 mV rms 20 MHz to 700 MHz, 50 mV rms to 1.3 GHz.
Maximum input 30v rms, reducing to 1v rms above 20 MHz.Powered by a 9v PP3 alkaline battery, with a life of about 12 hours.
'Bat' display indicates that 10% of battery life remains.
Push-to-measure function extends battery life by switching off the instrument after 15 seconds.The PFM1300 was superseded by the model PFM3000 offering frequency measurement up to 3 GHz.
- Poids net
- 0.190 kg / 0 lb 6.7 oz (0.419 lb)
- Auteur
- Modèle crée par Bruce Taylor. Voir les propositions de modification pour les contributeurs supplémentaires.
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Collections
Le modèle Portable frequency counter fait partie des collections des membres suivants.