PIE Practical Instrument Electronics 334, 334 Plus Data sheet

Automated mA Loop Calibrator

Choose

Your New

334!

mA Loop Calibrator

Practical Instrument Electronics

841 Holt Road #1 • Webster, NY 14580 • Tel: [phone] • Fax: [phone] • [e-mail]

www.piecal.com

mA Loop Calibrator

Not

Just

Another

334!

A Precision Milliamp Loop Calibrator

WITH Rubber Boot & Rugged Switches
WITH Faster Dialing
WITH Longer Battery Life
WITH Easy (no tools) Battery Changes
WITH Larger Display

The Piecal 334 is a state of the art, highly reliable, rugged

and easy to use milliamp calibrator. It has the functions
necessary to perform the most demanding maintainance
and calibration on field instruments.

Source and read milliamps as well as power up and

measure or simulate two wire transmitters. You can also

measure DC Volts to troubleshoot power supplies.

The 334 is functionally equivalent to similar calibrators with

four digit displays, knobs and switches. Improvements over 334s from other manufacturers include

better long term stability, accuracy, reliability and ruggedness plus improved battery life.

The 334 gives you advantages of an updated design while maintaining the familiar, time proven reliability

and ease of use of similar calibrators. The PIECAL 334 is the perfect replacement for your worn out

milliamp calibrators!

Practical Instrument Electronics

841 Holt Road #1 • Webster, NY 14580 • Tel: [phone] • Fax: [phone] • [e-mail] • www.piecal.com

Automated mA Loop Calibrator

Do
More

With The

334Plus!

A Precision Milliamp Loop Calibrator

PLUS Current Leakage Detector
PLUS Automatic Stepping & Ramping
PLUS Backlit Five Digit Display
PLUS Built-In 250 Ohm HART Resistor
PLUS Rubber Boot & Rugged Switches

The Piecal 334Plus builds on the Piecal 334 with advanced
features unique to PIE calibrators. Easily find current leaks to
gound, deteriorating & damp insulation or corroded terminals
with patented loop diagnostic technology (US Patent # 7,248,058).
Automated stepping (2, 3 or 5 steps) and ramping lets you set the
334Plus at one instrument and check any other point in the loop.

Get better calibrations with a five digit display to 20.000 mA.
You can read the display in dim conditions with the built-in backlight.
Additional improvements over 334s from other manufacturers include
better long term stability, accuracy, reliability & ruggedness plus improved battery life.

PLUS the 334Plus exceeds the performance of many higher cost calibrators to meet today's most

demanding requirements while maintaining the familiar, time proven reliability and ease of use of similar
calibrators. The PIECAL 334Plus is the new milliamp calibrator standard!

Easily troubleshoot loop problems with patented loop diagnostic technology!

Recently calibrated two-wire transmitter controlling at 12.000 mA. Control room reports “Loop Out of Tolerance.”

Problem Indicated

PIECAL 334Plus powers the loop with
Current Leakage Detector.
Current (0.28 mA) is leaking around
the control element due to incorect
grounding, corrosion or moisture.

Problem Found & Corrected!

Moisture was found in unsealed
juntion box. Loop is operating
correctly without costly instrument
replacement or recalibration.
Hours of troubleshooting saved!

Practical Instrument Electronics

841 Holt Road #1 • Webster, NY 14580 • Tel: [phone] • Fax: [phone] • [e-mail] • www.piecal.com

PIECAL 334 & 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

Storage Temperature
Range

Relative Humidity
Range

Size L=5.63 x W=3.00 x H=1.60 inches

Weight 12.1 ounces (including boot & batteries)

Batteries Four “AA” Alkaline 1.5V (LR6)

Optional AC Adaptors 120 VAC 50/60 Hz [Part # 020-0100]

Optional NiMh

Rechargeable battery kit

Low Battery Low battery indication with nominal 1 hour of

Protection against
misconnection

Display High contrast graphic liquid crystal display with

Read mA

334 Ranges and
Resolution

334Plus Ranges and
Resolution

Accuracy

Below 24.01mA
Above 24.00mA

Voltage burden ≤ 2V at 50 mA

Overload/Current limit
protection

Battery life ≥ 125 Hours nominal;

-20 to 60 °C (-5 to 140 °F)

-30 to 60 °C (-22 to 140 °F)

10 % ≤RH ≤90 % (0 to 35 °C), Non-condensing

10 % ≤RH≤ 70 % (35 to 60 °C), Non-condensing

240 VAC 50/60 Hz [Part # 020-0101]

120 VAC for North America Only; charger, four
NiMh batteries, AC & DC cords [Part # 020-0103]

operation left

Over-voltage protection to 135 vrms (rated for
30 seconds) or 240 vrms (rated for 15 seconds)

0.413” (10.5 mm) high digits

0.00 to 52.00 mA Full Span OR -25.0 to 300.0%
of 4-20 mA

0.000 to 52.000 mA Full Span OR -25.00 to

300.00% of 4-20 mA

≤ ± 0.05 % of 24.00mA (± 0.01mA)
≤ ± 0.05 % of 52.00mA (± 0.02mA)

54 mA nominal

≥ 100 hrs with backlight on (334Plus)

Source/Power & Measure Two Wire Transmitters

334 Ranges and
Resolution

334Plus Ranges and
Resolution

Accuracy

EZ Check(s) at 4 &

1

20mA

0.0 to 24.00 mA

Noise ≤ ± ½ Least Significant Digit

Temperature effect ≤ ± 0.005 %/°C of FS

Loop compliance voltage

Loop drive capability 1200 Ω at 20 mA for 15 hours nominal; 950 Ω

Battery life Source and Power measure mode ≥ 30 hrs at 12

1

These are internal calibrated cardinal reference points and accuracy is not

defined or limited by display resolution

2-Wire Transmitter Simulation

Accuracy Same as Source/Power & Measure

Voltage burden ≤ 2V at 20 mA

Overload/Current limit
protection

Loop voltage limits 2 to 100 VDC (fuse-less protected from reverse

Battery life ≥ 125 hours nominal;

Voltage Read

Range and Resolution -99.99 to +99.99 VDC Full Span (FS)

Accuracy ≤ ± 0.05 % of FS

Temperature effect ≤ ± 100 ppm/°C of FS

Input resistance ≥ 2 MΩ

Battery life ≥ 125 hours nominal;

0.00 to 24.00 mA Full Span or

-25.0 to 125.0% of 4-20 mA

0.000 to 24.000 mA Full Span or

-25.00 to 125.00% of 4-20 mA

≤ ±0.025% of Span at 4 mA & 20 mA (± 0.005mA)

≤ ± 0.05% of 24.00mA Span (± 0.01mA)

≥ 24 DCV @ 20.00mA

with Hart Resistor enabled (334Plus)

mA nominal; ≥ 25 hrs with backlight on (334Plus)

24 mA nominal

polarity connections)

≥ 100 hrs with backlight on (334Plus)

≥ 100 hrs with backlight on (334Plus)

Additional Information

Your Local PIE Representative

This product is calibrated on equipment traceable to NIST and

includes a Certificate of Calibration. Test Data is available for an additional
charge.

Practical Instrument Electronics recommends a calibration interval of
one year. Contact your local representative for recalibration and repair
services.

Warranty

Our equipment is warranted against defective material and workmanship
(excluding batteries) for a period of three years from the date of shipment.
Claims under warrantee can be made by returning the equipment prepaid
to our factory. The equipment will be repaired, replaced or adjusted at our
option. The liability of Practical Instrument Electronics is restricted to that

given under our warrantee. No responsibility is accepted for damage, loss

or other expense incurred through sale or use of our equipment. Under
no condition shall Practical Instrument Electronics be liable for any special,
incidental or consequential damage.

Practical Instrument Electronics

841 Holt Road #1 • Webster, NY 14580 • Tel: [phone] • Fax: [phone] • [e-mail] • www.piecal.com

Practical Instrument Electronics, INC. Copyright © 2008 All rights reserved 334Plus-9010 Rev A 7 May 2008