Practical-instrument-electronics 522 Rev D Manual do Utilizador descarregar pdf (Página 3)

Model 522 Operating Instructions

82 E. Main Street Suite 3.14 • Webster, NY 14580

Tel: 585-872-9350 • Fax: 585-872-2638

sales@piecal.com • http://www.piecal.com/

522-9002 Rev D 3-4

Connection Diagram

Two Wire Connection to Transmitter

Specifications

General Specifications:

Unless otherwise indicated all specifications are rated from a nominal 23 °C, 70 % RH for 1 year from calibration.

Temperature Range -25 to 60 °C (-10 to 140 °F)

Relative Humidity Range 10 % ≤RH ≤90 % (0 to 35 °C), Non-condensing

10 % ≤RH≤ 70 % (35 to 60 °C), Non-condensing

Overall Size

4.9 X 3.15 X 1.82 inches (125.5 X 80 X 46.2 mm)

Overall Weight (including 9V battery) 7.2 oz (204 grams)

Battery 9V Alkaline provides 45 hours of continuous use

Miscellaneous

Low battery indication with nominal 1 hour of operation left

Overload protected to 60 volts for 30 seconds or less

High-contrast graphic liquid crystal display with 0.357” (9.07 mm) high digits

Millivolt Accuracy ±(0.008 % of mV Setting + 0.006 mV)

Temperature Coefficient of mV Source

50 ppm/°C of output range

Cold Junction Calibration Accuracy ±0.1 °C (0.2 °F)

Cold Junction Sensor Temperature Coefficient ±0.025 °/° in ambient temperature (°C or °F)

General Temperature Accuracy

±(0.008 % of mV setting + 0.006 mV) ± 0.1 °C (0.2 °F)

Resolution

0.1 °C or 0.1 °F

SOURCE Thermocouple Specifications:

Output Range -13.000 to +80.000 mV

Output Noise

±5 µV pp from 0.1 Hz to 10 Hz

Output Impedance

0.2 Ω (200 nV/uA)

Source Current < 8 mA

READ Thermocouple Specifications:

Input Noise

< ±1 LSD from 0.1 Hz to 10 Hz

Input Impedance > 1 MΩ

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