Practical Instrument Electronics 334Plus - Manual (Page 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
Milliamp Output Signal
Controller
Transmitter
P/I
DCS
4.334 READ
READ V
Choose this function to measure from -99.99 to +99.99V DC.
1) Select
“READ VDC” with slide switch q .
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 23.34
V
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 q .
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.