Agilent Technologies U1270 Series Instrukcja Użytkownika Pobierz pdf (Strona 7)

General Specifications

Display

Liquid crystal display (LCD) (with maximum reading of 33000 counts)

Power consumption

460 mVA maximum (with backlight enabled)

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)

Fuse

• 10 × 35 mm 440 mA/1000 V 30 kA fast-acting fuse

• 10 × 38 mm 11 A/1000 V 30 kA fast-acting fuse

Operating Environment

• Operating temperature from –20 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 to 70 °C, 0 to 80% RH

Safety Compliance

• CAN/CSA-C22.2 No. 61010-1-04

• EN/IEC 61010-1:2001

• ANSI/UL 61010-1:2004

Measurement Category

CAT III 1000 V/ CAT IV 600 V

Electromagnetic Compatibility

(EMC)

Commercial limits compliance with EN61326-1

Ingress Protection Rating

IP-54

Temperature Coefficient

0.05 × (speciﬁ ed accuracy) / °C (from –20 to 18 °C, or 28 to 55 °C)

Common Mode Rejection Ratio

(CMRR)

>120 dB at DC, 50/60 Hz ± 0.1% (1 kΩ unbalanced)

Normal Mode Rejection Ration

(NMRR)

>60 dB at 50/60 Hz ± 0.1%

Dimensions (W x H x D)

92 × 207 × 59 mm

Weight

• U1271A: 518 grams (with batteries)

• U1272A: 520 grams (with batteries)

Warranty

• Three years for product

• Three months for product’s accessories

Calibration Cycle

One year

Specification Assumptions

• Accuracy is given as ±(% of reading + counts of least signiﬁ cant digit) at 23 °C ± 5 °C, with relative humidity less than 80% RH.

• AC V and AC μA/mA/A speciﬁ cations are ac coupled, true RMS and are valid from 5% of range to 100% of range.

• The crest factor may be up to 3.0 at full- scale except for the 1000 V range where it is 1.5 at full scale.

• For non- sinusoidal waveforms, add (2% reading + 2% full scale) typical, for crest factors up to 3.

• After Z

LOW

voltage measurements, wait at least 20 minutes for thermal impact to cool before proceeding with any other measurement.

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