Datasheet

17
General specifications
Battery type 4 × 1.5 V AA Alkaline batteries (ANSI/NEDA 15A or IEC LR6)
4 × 1.5 V AA Lithium Iron Disulfide batteries (ANSI/NEDA 15LF or IEC FR6)
4 × 1.5 V AA Zinc Chloride batteries (ANSI/NEDA 15D or IEC R6) (U1453A/U1461A only)
Battery life
U1451A/U1452A/U1452AT
U1453A/U1461A
270 hours (Alkaline batteries)
50/60/80 hours typical at high/medium/low brightness (Alkaline batteries)
Power consumption 2.7 VA maximum (with backlight/maximum brightness)
Fuse 10 × 35 mm 30 kA fast-acting fuse
Display
U1451A/U1452A/U1452AT
U1453A/U1461A
Liquid Crystal Display (LCD), 4 digits with maximum reading of 6,600 counts
Organic LED (OLED) with maximum reading of 6,600/66,000 and 660/6,600 counts selectable
Connectivity IR-to-USB cable
U1117A IR-to-Bluetooth Adapter (Bluetooth Class 1)
U1177A IR-to-Bluetooth Adapter (Bluetooth Class 2)
Operating environment
U1451A/U1452A/U1452AT
U1453A/U1461A
–20 to 55 °C, 0% to 80% RH (with alkaline batteries)
0 to 2000 meters altitude
–20 to 55 °C, 0% to 80% RH (with alkaline batteries)
–40 to 55 °C, 0% to 80% RH (with lithium batteries)
0 to 2000 meters altitude
Storage compliance –40 to 70 °C, 0% to 80% RH with battery removed
Safety compliance IEC/EN 61010-1:2010
EN 61557-1, IEC/EN 61557-2, and IEC/EN 61557-4
EMC compliance IEC 61326-1:2005/EN 61326-1:2006
Measurement category CAT III 1000 V/CAT IV 600 V
Common Mode Rejection Ratio (CMRR) > 120 dB at DC, 50/60 Hz ± 0.1% (1 kΩ unbalanced)
Normal Mode Rejection Ratio (NMRR) > 60 dB at 50/60 Hz ± 0.1%
Temperature coefficient
U1451A/U1452A/U1452AT
U1453A/U1461A
0.05 × (specified accuracy)/°C (from –20 to 18 °C, or 28 to 55 °C)
0.05 × (specified accuracy)/°C (from –40 to 18 °C, or 28 to 55 °C)
IP rating IP-67, protected against dust and the effect of immersion between 15 cm and 1 m
Drop test 1 meter per EN/IEC 61010-1:2001 and 3 meters (10 feet), 6 sides drop to oak floor and tester
with holster
Dimensions (W × H × D) 100 × 218 × 58 mm
Weight
U1451A/U1452A/U1452AT
U1453A/U1461A
728 grams (with alkaline batteries and rubber holster)
686 grams (with lithium batteries and rubber holster)
Warranty 3 years for main unit
3 months for standard accessories unless otherwise specified