Practical-instrument-electronics 850 Manual de usuario descargar pdf (Pagina 38)

Page 36

Preliminary

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

Common Mode Rejection

50/60 Hz, 100 dB

Normal Mode Rejection

50/60 Hz, 50 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” Lithium 1.5V (LR6)

Battery life

Read Functions ≥ 20 hours; Read

Pressure ≥ 7 hours

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

≥ __ hours @ 30 mA into ___ Ω

Pwr/Meas: ≥ 12 hours @ 20 mA, ≥ 4.5

hours @ 50 mA

Source V, Ω, T/C, pH, 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,

0.315” (8.0 mm) high digits, backlighting

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 47 48

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