Practical-instrument-electronics 820-ELITE Manual de usuario descargar pdf (Pagina 34)

Page 32

Specifications

General

Operating Temp Range

-20 to 60 °C (-5 to 140 °F)

Storage Temp Range -30 to 60 °C (-22 to 140 °F)

Temperature effect ≤ ± 0.01 %/°C of Full Scale

Relative Humidity

Range

10 % ≤RH ≤90 % (0 to 35 °C),

Non-condensing

10 % ≤RH≤ 70 % (35 to 60 °C),

Non-condensing

Normal Mode Rejection

50/60 Hz, 50 dB

Common Mode Rejection

50/60 Hz, 120 dB

Noise

≤ ± ½ Least Significant Digit from 0.1 to 10 Hz

Size

5.63x3.00x1.60” 143x76x41mm (LxWxH)

Weight

12.1 ounces, 0.34 kg with boot & batteries

Batteries Four “AA” Alkaline 1.5V (LR6)

Battery life Read Functions: ≥ 20 hours

Source mA: ≥ 14 hours @ 12 mA into 250Ω

Pwr/Meas mA: ≥ 12 hours at 20 mA

Source V, Ω, T/C, RTD & Hz:

≥ 20 hours

Low Battery Low battery indication with nominal 1

hour of operation left

Protection against

misconnection

Over-voltage protection to 60 vrms

(rated for 30 seconds)

Red LED indicates OVERLOAD or out

of range conditions

Display

High contrast graphic liquid crystal display

with 0.315” (8.0 mm) high digits. LED

backlighting.

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Practical-instrument-electronics 820-ELITE Manual de usuario Pagina 34