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Un instrument, quatre fonctions. La série U1250A combine les
fonctions d’un multimètre et compteur de fréquence complet
qui vous permettent d’effectuer des mesures de température et de
produire des ondes carrées avec un seul instrument.
• Mesure AC+DC effi cace vraie et jusqu’à 0,025 % de précision
pour un dépannage accéléré
• Enregistrement manuel et automatique des données grâce à
la liaison IR/USB en option ; transférez vos données sur votre
PC
• Fonctions standard : tension, courant, résistance, fréquence,
capacitance, température, continuité avec bip, test des diodes,
min/max, crête, hold, dB/dBm
• Fonctions avancées du U1252A : compteur de fréquence
20 MHz, générateur d’ondes carrées programmable
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Basic Features
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U1241A
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U1242A
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U1251A
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U1252A
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Digit
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4 digit
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4 digit
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4.5 digit
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4.5 digit
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Display resolution
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10,000 counts
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10,000 counts
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50,000 counts
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50,000 counts
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True RMS
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AC
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AC
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AC
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AC + DC
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Auto/manual ranging
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Auto/manual ranging
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Auto/manual ranging
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Auto/manual ranging
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Auto/manual ranging
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Analog bar graph
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Yes
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Yes
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Yes
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Yes
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Backlight
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Yes
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Yes
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Yes
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Yes
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AC bandwidth
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2kHz
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2kHz
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30kHz
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100kHz
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Input impedance
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10MΩ
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10MΩ
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10MΩ
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10MΩ
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Crest factor
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3
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3
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3
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3
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Measurements
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Voltage AC
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Range
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0.01mV - 1000V
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0.01mV - 1000V
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0.001mV - 1000V
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0.001mV - 1000V
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Basic accuracy
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0.09%
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0.09%
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0.60%
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0.40%
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Voltage DC
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Range
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0.01mV - 1000V
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0.01mV - 1000V
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0.001mV - 1000V
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0.001mV - 1000V
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Basic accuracy
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0.09%
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0.09%
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0.030%
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0.025%
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Current AC
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Range
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0.1uA - 10A
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0.1uA - 10A
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0.01uA - 10A
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0.01uA - 10A
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Basic accuracy
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1.00%
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1.00%
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0.80%
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0.70%
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Current DC
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Range
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0.1uA - 10A
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0.1uA - 10A
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0.01uA - 10A
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0.01uA - 10A
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Basic accuracy
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0.10%
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0.10%
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0.10%
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0.05%
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Resistance
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Range
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0.1Ω - 100MΩ
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0.1Ω - 100MΩ
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0.01Ω - 50MΩ
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0.01Ω - 500MΩ
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Basic accuracy
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0.30%
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0.30%
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0.08%
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0.05%
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Frequency
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Range
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0.01Hz - 200kHz
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0.01Hz - 200kHz
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0.001Hz - 1MHz
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0.001Hz - 20MHz
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Basic accuracy
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0.03%
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0.03%
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0.02%
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0.02%
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Capacitance
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Range
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0.1nF - 10mF
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0.1nF - 10mF
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0.001nF - 100mF
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0.001nF - 100mF
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Basic accuracy
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1.20%
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1.20%
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1.00%
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1.00%
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Temperature
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Range
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-40°C to +1000°C
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-40°C to +1000°C
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-200°C to +1372°C
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-200°C to +1372°C
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Basic accuracy
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1%
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1%
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0.3%
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0.3%
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Continuity with beeper
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Yes
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Yes
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Yes
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Yes
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Diode test
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Yes
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Yes
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Yes
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Yes
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Data Management
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Min/Max recording
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Yes
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Yes
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Yes
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Yes
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Peak hold
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Yes
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Yes
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Display hold
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Yes
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Yes
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Yes
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Yes
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Reading memory
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200 data points
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200 data points
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200 data points
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200 data points
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Interval logging
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Yes
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Yes
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Yes
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Yes
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Logging to PC
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Yes
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Yes
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Null
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Yes
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Yes
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Yes
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Yes
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PC Interface
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Optical-USB
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Optical-USB
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Other features
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% scale of 4-20 mA
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Yes
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Yes
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Yes
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Yes
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dBV/dBm
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Yes
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Yes
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Conductance
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Yes
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Yes
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Duty cycle
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Yes
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Yes
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Pulse width
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Yes
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Yes
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Programmable squarewave generator
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Yes
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Battery
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4 x AAA
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4 x AAA
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9V
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9V rechargeable
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Operating temperature
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-10°C to 55°C
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-10°C to 55°C
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-20°C to 55°C
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-20°C to 55°C
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Closed case calibration
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Yes
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Yes
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Yes
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Yes
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Safety and Regulatory
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Over-voltage safety protection
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CAT III 1000V
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CAT III 1000V
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CAT III 1000V
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CAT III 1000V
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CE, CSA, UL compliance
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Yes
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Yes
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Yes
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Yes
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