Practical-instrument-electronics 334Plus Manual de usuario descargar pdf (Pagina 6)

Practical Instrument Electronics

82 East Main Street Suite 3.14 • Webster, NY 14580 Tel: 585.872.9350 • Fax: 585.872.2638 • [email protected] • www.piecal.com

Page 6

Signals exceeding ±60.00 VDC are indicated

by i on the display.

Reading Milliamp Outputs















READ V

Choose this function to measure from -99.99 to +99.99V DC.

1) Select “READ VDC” with slide switch

2) Connect the red (+) and black (-) leads of the PIECAL

334Plus across the voltage source to be measured.

Any DC voltage from -99.99 to +99.99 volts may be

measured. Loop power supplies, signal voltages at

receivers, batteries and transmitter voltage drops may be

measured. Signals exceeding ±60.00 VDC are indicated by

i on the display. Signals exceeding ±99.99 VDC will be

indicated by “OVERRANGE” flashing on the display.

Read DC Volts

Voltage to be Measured

Battery

Loop Power Supply

Transmitter Voltage Drop

1 to 5 Volt Loops







READ i

72.83 V

READ mA, READ % (Percent of 4 to 20 mA)

Choose this function to measure from 0.000 to 52.000 milliamps or -25.00 to 300.00%.

1) Open the current loop at any convenient point

along the signal path.

2) Select “mA” or “% 4 to 20mA” with slide

switch

3) Select “Read” using slide switch w.

4) Connect the red input lead (+) of the

PIECAL 334Plus to the more positive

point of the break and the black input to

the more negative point.

Signals below 0 mA or open circuits are

indicated by 0.000 mA (-25.00%) on the

display. Signals above 52 mA are current

limited by protection circuitry and

“OVERRANGE” is flashed on the display.

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Practical-instrument-electronics 334Plus Manual de usuario Pagina 6

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