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146 Agilent U1251A/U1252A User’s and Service Guide
8 Specifications
Product Characteristics
POWER SUPPLY
Battery type:
• 9 V size Ni-MH rechargeable battery, 7.2 V nominal voltage
• 9 V size Ni-MH rechargeable battery, 8.4 V nominal voltage
• 9 V Alkaline battery (ANSI/NEDA 1604A or IEC 6LR61)
• 9 V Carbon-zinc battery (ANSI/NEDA 1604D or IEC6F22)
Battery life:
• 8 hours typical (based on a fully charged Ni-MH 300 mAH battery for DC
voltage measurement)
• 14 hours typical (based on a new 9 V Alkaline battery for DC voltage
measurement)
Charge time (U1252A only):
• Less than 220 minutes in an environment of 10 °C to 30 °C. if the battery has
been deep-discharged, a prolonged charging time is required in order for the
battery to return to full capacity
POWER CONSUMPTION
• 105 mVA / 420 mVA (with backlight usage) maximum (U1251A)
• 165 mVA / 480 mVA (with backlight usage) maximum (U1252A)
DISPLAY
• Both primary and secondary displays are 5-digit liquit crystal display (LCD)
with maximum reading of 50,000 counts
• Automatic polarity indication
OPERATING ENVIRONMENT
• Temperature: Full accuracy from –20 °C to 55 °C.
• Humidity: Full accuracy up to 80% RH (relative humidity) for temperatures up
to 35°C, decreasing linearly to 50% RH at 55 °C.
• Altitude:
• 0 to 2000 meters complying with IEC 61010-1 2nd Edition CAT III, 1000 V/
CAT IV, 600 V.
• Pollution degree II
STORAGE COMPLIANCE
–40 °C to 70 °C with battery removed