5 Characteristics and Specifications
Product Characteristics
154 U1271A/U1272A User’s Guide
Product Characteristics
Product characteristics specified in the table below are applicable for both
U1271A and U1272A models unless stated otherwise.
POWER SUPPLY
Battery type:
• 4 × 1.5 V Alkaline battery (ANSI/NEDA 24A or IEC LR03), or
• 4 × 1.5 V Zinc Chloride battery (ANSI/NEDA 24D or IEC R03)
Battery life:
• 300 hours typical (based on new Alkaline batteries for DC voltage
measurement)
• Low battery indicator will flash when the battery voltage drops below 4.4 V
(approximately)
POWER CONSUMPTION
460 mVA maximum (with backlight enabled)
FUSE
• 10 × 35 mm 440 mA/1000 V fast-acting fuse
• 10 × 38 mm 11 A/1000 V fast-acting fuse
DISPLAY
Liquid crystal display (LCD) (with maximum reading of 33000 counts)
INPUT IMPEDANCE AT OFF MODE (U1272A only)
1.67 kΩ (protected by positive temperature coefficient resistor)
OPERATING ENVIRONMENT
• Operating temperature from –20 °C to 55 °C, 0% to 80% RH
• Full accuracy up to 80% RH for temperatures up to 30 °C, decreasing linearly
to 50% RH at 55 °C
• Altitude up to 2000 meters
• Pollution degree II
STORAGE COMPLIANCE
–40 °C to 70 °C, 0% to 80% RH
SAFETY COMPLIANCE
EN/IEC 61010-1:2001, ANSI/UL 61010-1:2004, and CAN/CSA-C22.2 No.
61010-1-04
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