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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.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
Automated mA Loop Calibrator
Automated mA Loop Calibrator
Operating Instructions
Operating Instructions
TestEquipmentDepot.com
Page 1
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Related Manuals for PIE PIECAL 334Plus
Summary of Contents for PIE PIECAL 334Plus
- Page 1 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.
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Page 2: Basic Operation
DC. Return the slide switch to the “OFF” position when not in use. Note: This feature does not charge the batteries, it only supplies power to the PIECAL 334Plus. Note: Percent mode can also be used with chart CHANGING BATTERIES recorders, valves or current trips that display in Low battery is indicated by “BAT”... - Page 3 Configuration Advanced Options Power On Options STEPS, RAMP & GROUND LEAK DETECTION HART MODE, AUTO OFF & BACKLIGHT Setup POWER SWITCH to “mA”, “% 4 to 20 Move Double click the DIAL KNOB at any time the mA” or “READ VDC”. unit is on and the following display will appear The following display will appear for 3 seconds: for 30 seconds:...
- Page 4 Sourcing Milliamps mA OUT, % OUT (Percent of 4 to 20 mA) Choose this function to provide an output from 0.00 to 24.00 milliamps. The compliance voltage is a nominal 24 VDC to provide the driving power to your milliamp receivers. 1) Disconnect one or both input wires from the device to be calibrated.
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Page 5: Simulate 2-Wire Transmitters
Simulate 2-Wire Transmitters 2 Wire mA, 2 Wire % (Percent of 4 to 20 mA) Choose this function to simulate a 2 Wire Transmitter output from 0.000 to 24.000 milliamps. Operates in loops with power supply voltages from 2 to 100 VDC 1) Disconnect one or both input wires from the device to be cali- brated. - Page 6 3) Select “Read” using slide switch Milliamp Output Signal 4) Connect the red input lead (+) of the Controller PIECAL 334Plus to the more positive Transmitter READ point of the break and the black input to 4.334 the more negative point.
- Page 7 (-). The PIECAL 334Plus supplies a nominal 24 volts DC at 24 mA to the 2 Wire Transmitter. The current passed by the transmitter will be accurately displayed by the PIECAL 334Plus. Calibrate the transmitter in the usual manner and disconnect the PIECAL 334Plus.
- Page 8 (-). The PIECAL 334Plus supplies a nominal 24 volts DC at 24 mA to the 2 Wire Transmitter or loop. The current passed by the transmitter will be accurately displayed by the PIECAL 334Plus along with an indication of leakage current at the bottom of the display.
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Page 9: Application Notes
. Turning clockwise will increase the develops a problem it is important to maintain output value, turning counter-clockwise will control of the process. The PIECAL 334Plus can decrease the output value with 0.001 mA be substituted for a faulty controller or transmitter (0.01%) resolution. -
Page 10: Warranty
SETTING UP VALVES When setting up a valve it is important to correctly set the end stops. Use the PIECAL 334Plus to supply the 4 to 20 mA control signal to stroke the valve. Select “SOURCE” and the PIECAL 334Plus will use the internal power source for outputting current or switch to 2-WIRE SIMULATOR to stroke a valve using any pre-existing installed loop power supply as the power source. - Page 11 PIECAL 334Plus Specifications (Unless otherwise indicated all specifications are rated from a nominal 23 °C, 70 % RH for 1 year from calibration) General Operating Temperature Range -20 to 60 °C (-5 to 140 °F) Storage Temperature Range -30 to 60 °C (-22 to 140 °F) Relative Humidity Range 10 % ≤RH ≤90 % (0 to 35 °C), Non-condensing...
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Page 12: Additional Information
PIECAL 334Plus Specifications (continued) (Unless otherwise indicated all specifications are rated from a nominal 23 °C, 70 % RH for 1 year from calibration) Source/Power & Measure Two Wire Transmitters Ranges and Resolution 0.000 to 24.000 mA or -25.00 to 125.00% of 4-20 mA Accuracy EZ Check(s) at 4 &...
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