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Safety instructions
The guarantee claim becomes invalid for damages due to non-
observance of these operating instructions! We do not assume liabi-
lity for consequential damages!
We do not assume liability for property damages or personal injuries
caused by improper use or non-observance of the safety instruc-
tions. In all such cases guarantee claims become invalid.
The Frequency Counter FC-2500 has left the factory in compliance
with all relevant safety regulations. To preserve this state and to
guarantee safe operation, the user must observe the safety instruc-
tions and warnings contained in this operating manual.
Measurement devices and their accessories must be kept out of
reach of children!
In schools, training facilities, do-it-yourself and hobby workshops,
test devices and accessories are to be used only under supervision
of trained personnel.
Take the device into operation only when the housing is safely clo-
sed and screwed down.
Never apply mains voltage to the measurement inputs. This might
destroy the device and represent a serious threat to your life. You
must observe the maximum input ratings!
If there is reason to believe that safe operation has become impos-
sible, the device must be put out of operation and must be secured
against unintended operation. It can be assumed that safe operati-
on is no longer possible,
- if the device shows visible damages
- if the device no longer works
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Base de temps
Type
Fréquence
Coefficient de température
Affichage numérique
Affichage
Caractéristiques techniques générales
Alimentation en courant
Consommation de courant
Conditions d'environnement
Température de travail
Humidité relative de l'air
Dimensions (LxBxH)
Poids
: oscillateur à quartz
: 4,194 MHz
: 0,1 ppm par °C (type. 23°C ±5K)
: écran 8 chiffres à cristaux liquides,
13 cm de haut. Avec les symboles
"REL" pour la valeur relative et
"R.C." pour Record = mémorisati-
on"--Hold—" (= tenir) et "---oL---"
(=Overload = surchargé)
: 4 x 1,5-V-piles alcalines de type AA
(=Mignon=UM3) ou transformateur
pour courant avec 9 VDC / > 300
mA, "+" intérieur (non compris)
: env. 105mA pour mesure sur canal
A ou B
env. 5 mA pour mesure sur canal C
: 0°C à +50°C (32°F à 122°F)
: max. 90% (0°C à 35°C), sans con-
densation
: env. 173 x 80 x 35 mm (sans les
câbles)
: env. 340 g (sans connexions,
avec piles)
47
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