Cool Automation 9000H Guia de Instalação descarregar pdf (Página 19)

Sensor Cable Guidelines

Entek 9000 Series Sensor Installation Guide 11

Cable length

The nomograph below provides a simple, graphical method for obtaining the expected

maximum frequency capability of an IEPE measurement system. The maximum peak signal

voltage amplitude, cable capacitance, and supplied constant current must be known or

presumed.

- 1

(Rate of Maximum

Output Voltage from

Sensor to Available

Constant Current)

Frequency (Hz)

max

= Maximum frequency given the following characteristics

C = Cable capacitance (pF) I

= Constant current level from power unit (mA)

V = Maximum output voltage from sensor (volts 10

= Scale factor to equate units

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 29 30

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