Practical Instrument Electronics 334Plus - Manual

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
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• EASY TO USE
With the PIECAL 334Plus 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 0.000 to 24.000 mA, Simulate a 2 Wire Transmitter or use the PIECAL 334Plus
to simultaneously power your 2 Wire Transmitter and measure its output.
• EASY TO READ
Turn on the backlight to easily read the display in
dark areas of the plant.
• TROUBLESHOOT LOOP PROBLEMS
Quickly diagnose ground fault and current
leakage with the patented loop diagnostic
technology (US Patent# 7,248,058).
• 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 0.001 mA with the adjustable
digital potentiometer “ DIAL” or use preset 4.000
mA (0.00%) and 20.000 mA (100.00%)
EZ-CHECK™ settings.
• AUTOMATIC OUTPUT STEPPING & RAMPING
Press & hold the dial to automatically step from 4
to 20 in 2, 3 or 5 steps or choose a continuous
ramp.
• CALIBRATE USING LOOP POWER
Check loop wiring and receivers by using the
PIECAL 334Plus in place of a 2 Wire transmitter.
The PIECAL 334Plus 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 334Plus
measures 0.000 to 52.000 mA (-25.00 to 300.00%)
signals with greater accuracy than a typical
multimeter.
• POWER & MEASURE 2 WIRE TRANSMITTERS
The PIECAL 334Plus can simultaneously output 24V DC to power any and all
devices in a process loop using the internal batteries and internal switching power supply, while
measuring the output of a 2 Wire Transmitter and any other loop devices. Powers HART™
transmitters with built-in 250 ohm resistor simplifying hookups with HART communicators.
• READ DC VOLTS
The PIECAL 334Plus can measure from -99.99 to +99.99 VDC with 10mV resolution. Use it to
check loop power supplies, I/V converters, 1 to 5 Volt signals, and other voltages making it
unnecessary to carry an additional multimeter.
Automated mA Loop Calibrator
Operating Instructions
Automated mA Loop Calibrator
Operating Instructions
Copyright © 2011 All rights reserved • 334Plus-9002 - Rev D 13 July 2011