Product Description
•
EASY TO USE
With the PIECAL Model 334 you can check, calibrate
and measure all your current signal instruments in a
4 to 20 milliamp DC loop. It can be used at any
access point in your loop. Source & Read 0.00 to
24.00 mA, Simulate a 2 Wire Transmitter or use the
PIECAL Model 334 to simultaneously power your 2
Wire Transmitter and measure its output. When
desired the PIECAL Model 334 can display current
in milliamps or percent of 4 to 20.
• SOURCE MILLIAMPS
Calibrate recorders, digital indicators, stroke valves
or any instruments that get their input from a 4 to
20 mA loop. Easily set any value quickly to within
0.01 mA with the adjustable digital potentiometer
“DIAL ” or use preset 4.00 mA (0.0%) and 20.00
mA (100.0%) EZ-CHECK™ settings.
• RECALL OUTPUT SETTINGS
The EZ CHECK™ switch provides rapid checking of
4.00, 20.00 and any convenient third point between
0.00 to 24.00 mA.
• CALIBRATE USING LOOP POWER
Check loop wiring and receivers by using the
PIECAL Model 334 in place of a 2 Wire transmitter.
Simulate a changing process input to check loop
response and control settings. The PIECAL Model
334 uses any loop power from 2 to 100V DC.
• READ LOOP CURRENT
Check controller outputs or measure the milliamp signal anywhere in the loop. The
PIECAL Model 334 measures 0.00 to 52.00 mA signals with greater accuracy than
a typical multimeter. The PIECAL Model 334 can be easily switched to display
milliamps or percent of 4 to 20.
• POWER & MEASURE 2 WIRE TRANSMITTERS
The PIECAL Model 334 can simultaneously output 24V DC to power any and all devices in a
process loop using the internal batteries and the internal switching power supply, while
measuring the output of a 2 Wire Transmitter and any other loop devices. This is handy for
checking the functionality of transmitters in the eld or on the bench.
• READ DC VOLTS
The PIECAL Model 334 can measure from -99.99 to +99.99 VDC with 10mV resolution. Use it to
check loop power supplies, I/V converters, chart recorders, 1 to 5 Volt signals, and any other
voltages within this range making it unnecessary to carry an additional multimeter.
PIECAL Model 334
4-20 mA Loop Calibrator
Operating Instructions
PIECAL Model 334
4-20 mA Loop Calibrator
Operating Instructions
Practical Instrument Electronics, Inc.
Available at www.Instrumentation.com
