PIE 422
Preliminary
Diagnostic Thermocouple
& Milliamp Calibrator
Best Thermocouple & Milliamp Calibrator on the market!
• The only 2-in-1 thermocouple & full function
milliamp calibrator on the market
Only calibrator that combines ALL the functions of a diagnostic
milliamp calibrator with the accuracy of a laboratory thermocouple
calibrator.
=
• Protect instruments & technicians from potentially
dangerous catastrophic failures due to hidden
loop problems
Quickly diagnose ground fault and current leakage often caused by
water in conduits and junction boxes with patented loop diagnostic
technology (US Patent# 7,248,058).
• Best accuracy & stability found in a handheld
calibrator
The internal cold junction is accurate to ±0.05°C and is traceable to
NIST. Isothermal brass blocks with screw terminals allow for
connection of bare thermocouple wires plus a miniature thermocouple
connector for fast connections. More accurate than any other
handheld thermocouple calibrator.
• Verify Heat Treating Uniformity Survey Recorders
& perform System Accuracy Tests
The PIE 422Plus is capable of meeting the requirements of an AMS
2750 Field Test Instrument when certified by an accredited laboratory.
•
Half the size of the closest competitor & easiest to use
Fits the palm of your hand like a cell phone and weighs less than a
pound. Automatic indication of connections on the display for simple
hookups. Carry it without worry - it comes protected with a rubber
boot and rugged, low profile switches. Easy to operate even in dark
areas of the plant with the backlit display.
Actual Size
Practical Instrument Electronics
82 E. Main Street Suite 3.14 • Webster, NY 14580 Tel: 585.872.9350 • Fax: 585.872.2638 • sales@piecal.com • www.piecal.com
More functions and better accuracy in one calibrator
• Two complete calibrators
Unlike any other combination thermocouple/milliamp
calibrator on the market the PIE 422Plus includes a
FULL function diagnostic milliamp calibrator that
sources and reads 0.000 to 24.000 mA, simulates two
wire transmitters, powers and measures transmitters
with its internal 24V supply, has a built-in 250 ohm
resistor for HART compatibility, and PIE’s patented
Ground Leak detection. Competitive calibrators allow
you to calibrate temperature transmitters but don’t
have the ability to test other instruments in a 4 to 20
milliamp loop.
The other half of the calibrator sources and reads
thermocouple types J, K, T, E, R, S, B, N, G, C, D, L
(J-DIN), U (T-DIN), P (Platinel II), and from -13.000 to
80.000 mV.
• Protect instruments & technicians from
potentially dangerous catastrophic
failures due to hidden loop problems
It’s important to find hidden loop problems BEFORE
they become cause product problems or catastrophic
failures. Only PIE Calibrators have Ground Leak
Detection that can detect these problems.
Some technicians routinely check their critical loops
for ground faults and current leaks using PIE’s Ground
Leak detection as part of their preventative maintenance
programs. When a significant leak or fault is detected
it is located and fixed before catastrophic failures
occur.
Sometimes the control room detects a problem that
isn’t fixed with routine calibration of the instruments.
The technician then reaches for a calibrator with
Ground Leak Detection to power up the loop and
confirm that the issue is hiding somewhere in the loop
wiring.
• State of the art accuracy & stability
It’s important to have a calibrator that is at least 4
times more accurate than the instruments being
calibrated. Both the milliamp and thermocouple
sections were designed with state of the art components
that are the most accurate and stable found in a
handheld calibrator.
The internal cold junction is accurate to ±0.05°C and
is traceable to NIST. The sensor is thermally bonded
to an isothermal mass including brass blocks with
screw terminals for connection of bare thermocouple
wires along with a miniature thermocouple connector
for fast connections. An extremely stable voltage
reference and low drift components make it more
accurate than other handheld thermocouple calibrators.
• Verify Heat Treating Uniformity Survey
Recorders & perform System Accuracy
Tests
The AMS 2750 standard calls out particular
specifications that need to be met for a calibrator to be
used as a Field Test Instrument. The Field Test
Instrument is then used to verify the thermocouple
measuring thermometers and controllers that are
used in the heat treating of parts for the aerospace
industry.
The PIE 422Plus is capable of meeting the requirements
of an AMS 2750 Field Test Instrument when certified
by an accredited laboratory.
• Half t
he size
of the closest competitor &
easiest to use
Don’t get tired by lugging around heavy oversized test
equipment when you can carry the palm sized PIE
422Plus that weighs less than a pound. It comes with
a deluxe carrying case for simple, hands free operation.
The simple and intuitive double click menu and
EZ-Check switch are faster and easier to use than
calibrator with lots of confusing buttons or with
confusing menus. And with the optional magnet strap
you can attach it to a panel or loop the strap around a
conduit or pipe.
Many calibrators don’t have automatic stepping and
ramping while others limit you to selecting either slow
or fast fixed 25% steps. The PIE 422Plus lets you
choose between 2, 3, 5, 11 and 21 steps to automatically
increment the output in 100%, 50%, 25%, 10% or 5%
of span. Select the step time to match your system
from 5, 6, 7, 8, 9, 10, 15, 20, 25, 30 and 60 seconds.
Ground Leak Detection
Prevent Small Problems from Becoming Major Plant Failures
The PIE 422Plus offers powerful troubleshooting tools that offer visibility to the health of your loop that is not possible
with any calibrator brand on the market. Ground Leak Detection allows technicians to find and fix undetected
problems before they cause quality issues or become catastrophic failures - ending in poor product, injury, loss of
life, or equipment damage. Common loop problems caused by moisture, corrosion and contamination left unchecked
can lead to dangerous conditions that are easily avoided with the innovation technology in the PIE 422Plus.
Even the most common small errors caused by loop wiring issues can lead to inferior product, lost production time
and risk to personnel. Intrinsically safe loops are protected by barriers only against extreme overvoltage and over
current conditions but allowing small but significant ground faults to go undetected. PIE’s unique and powerful
Ground Leak Detection technology quickly and easily finds a fault that would otherwise go undetected. These
undetected faults could lead to potentially disastrous outcomes.
Have you ever replaced a “faulty” transmitter only to find the problem was somewhere else in the loop? And did you
end up throwing the transmitter away after you fixed the other problem “just in case” the transmitter was faulty?
If you find a loop where the transmitter is calibrated correctly but all the readings elsewhere in the loop have a fixed
offset this is due to a Zero Shift. This Zero Shift is typically caused by some of the current in the loop bypassing the
transmitter. If you have some loops that are erratic after it rains there may be moisture present in a junction box or
where insulation has broken down.
Only a PIE Calibrator with patented Ground Leak Detection can find all these hidden problems. Turn on Ground Leak
Detection and use the PIE 422Plus to power up the loop. Any current that isn’t controlled by the transmitter or other
current control element will be clearly indicated as leakage on the PIE 422Plus display.
Ground Leak detection allows technicians to troubleshoot loop problems with ease and confidence - minimizing risk
and maximizing process uptime.
Hidden Problem Found with Ground Leak Detection
Safe loop
Sealed junction box is dry and the control system
is operating within parameters.
Dry
Junction
Transmitter
input signal at
50% of Span
Box
+ IN - REF +OUT-
Transmitter
regulating
current to
12.00 mA
12.00mA
+
Control
System
Dangerous loop left undetected
The flooded junction box goes undetected and
the control system potentially goes further out of
control until...
Flooded
Junction
Transmitter
input signal at
50% of Span
Box
+ IN - REF +OUT-
Transmitter
regulating
current to
12.00 mA
12.51mA
+
Control
System
Sealed junction box is wet* and the control
system is operating with a fixed offset of 0.51
milliamps!
Transmitter
input signal at
50% of Span
* The value of the current leak increases when the water in the
junction box is contaminated with rust, salt or process chemicals.
OR
Hidden problem is detected by the PIE 422Plus.
The flooded sealed junction box is emptied and
the control system is once again operating within
parameters. The product, equipment, and
personnel are safe!
Dangerous loop
Flooded
Junction
+ IN - REF +OUT-
Transmitter
regulating
current to
12.00 mA
Disaster averted
Box
12.51mA
+
Control
System
Accessories
Deluxe Hands Free
Carrying Case (Included)
Thermocouple Wire Kit 1
J, K, T & E (Optional)
Magnetic Hanging Strap
(Optional)
Included:
Blue Rubber Boot, Four “AA” Alkaline batteries, Certificate of Calibration
Deluxe Hands Free Carrying Case Part No. 020-0211
Evolution mA/V Wire Kit Part No. 020-0207
1 Red & 1 Black Lead with Banana Plugs & Alligator Clips
Thermocouple, Millivolt & Milliamp Connections
Simulating or reading thermocouples requires the use of
thermocouple or extension grade thermocouple wire.
Plug thermocouple wires into the miniature thermocouple
jack or place bare thermocouple wires onto the brass block
under the screws.
The PIE 422Plus has two banana jacks (1+ and 2-) mounted
in the top end of the housing. These are not temperature
compensated and are to be used only for millivolt signals. The
two banana jacks (5+ and 6-) are for all milliamp signals.
Thermocouple Wire Kit 2
B, R/S, N (Optional)
Optional:
T/C Wire Kit 1 for Types J, K, T & E Part No. 020-0202
T/C Wire Kit 2 for Types B, R/S & N Part No. 020-0203
Three feet (1 meter) of T/C extension wire, stripped on one end
with a miniature T/C male connector on the other end.
Magnetic Hanging Strap Part No. 020-0236
Ni-MH Charger with 4 Ni-MH AA Batteries Part No. 020-0103
PIE 422Plus Specifications
(Unless otherwise indicated all specifications are rated from a nominal 23°C, 70% RH for 1 year from calibration)
General
Operating Temperature
Range
Relative Humidity Range 10 % ≤RH ≤90 % (0 to 35 °C), Non-condensing
Temperature Drift
Size
Weight 12.1 ounces, 0.34 kg (including boot & batteries)
Batteries Four “AA” Alkaline 1.5V (LR6)
Battery Life 25 Hours Thermocouple, 8 Hours milliamp
Isolation: Voltage 60V rms between all milliamp functions/Read V DC
Normal Mode Rejection 50/60 Hz, 50 dB
Common Mode Rejection 50/60 Hz, 120 dB
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. LED
-25 to 60 °C (-10 to 140 °F)
10 % ≤RH≤ 70 % (35 to 60 °C), Non-condensing
± 0.01% of span outside of 23°C ±10 °C (73°C ±18 °F)
5.63 x 3.00 x 1.60 in, 143 x 76 x 41 mm (L x W x H)
and Source V DC/Thermocouple
Charger, four
operation left
Over-voltage protection to 60 V dc (rated for 30
seconds)
backlighting for use in low lit areas.
NiMh batteries [Part # 020-0103]
Source Thermocouple
Accuracy ±(0.008% of Reading + 0.006 mV)
Cold Junction
Compensation
Millivolt Range -13.000 to 80.000 mV
Output Impedance < 0.3 Ohms
Source Current > 20 mA (drives 80 mV into 10 Ohms)
Noise ≤ 4 microvolts p-p for frequencies of 10 Hz or below
Read Thermocouple
Accuracy ±(0.008% of Reading + 0.006 mV)
Cold Junction
Compensation
Millivolt Range -13.000 to 80.000 mV
Input Impedance
Open Thermocouple
Threshold
Pulse
Normal Mode Rejection 50/60 Hz, 50 dB
Common Mode Rejection 50/60 Hz, 120 dB
± 0.09°F (±0.05 °C) - Thermistor traceable to NIST for
11 years
± 0.09°F (±0.05 °C) - Thermistor traceable to NIST for
11 years
> 10 Megohms
10,000 Ohms nominal
< 10 microamp pulse for 400 milliseconds
Read mA
Ranges and Resolution
Accuracy ≤ ± (0.02 % of Reading + 0.003 mA)
Voltage burden ≤ 2V at 24 mA
Overload/Current limit
protection
Source mA / Power & Measure Two Wire Transmitters & PWRM LEAK
Ranges and Resolution
Accuracy ≤ ± (0.02 % of Reading + 0.003 mA)
Loop compliance voltage
Loop drive capability 1200 Ω at 20 mA for 15 hours nominal;
mA 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 60 VDC (fuse-less protected from reverse
0.000 to 24.000 mA or -25.00 to 125.00% of 4-20 mA
25 mA nominal
0.000 to 24.000 mA or -25.00 to 125.00% of 4-20 mA
≥ 24 DCV @ 20.00mA
950 Ω with Hart Resistor or leak detection running
24 mA nominal
polarity connections)
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 warranty 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 (PIE) is restricted to that given under our warranty. 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, Inc. be liable for any special, incidental
or consequential damage.
Additional Information
PIE Calibrators are designed, assembled, and calibrated in the USA.
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.
Thermocouple Ranges & Accuracies
Based on ≤ ± (0.008 % of Reading + 0.006 mV)
T/C Degrees C
Range
J -200.0 to -180.0 ±0.3° -328.0 to -292.0 ±0.5° +Iron
-180.0 to -50.0 ±0.2° -292.0 to -58.0 ±0.4°
-50.0 to 500.0 ±0.1° -58.0 to 932.0 ±0.2°
500.0 to 1200,0 ±0.2° 932.0 to 2192.0 ±0.4°
K -230.0 to -100.0 ±0.6° -382.0 to -148.0 ±1.1° + Chromel®
-100.0 to 1050.0 ±0.2° -148.0 to 1922.0 ±0.4°
1050.0 to 1371.1 ±0.3° 1922.0 to 2500.0 ±0.5°
T -260.0 to -200.0 ±1.0° -436.0 to -328.0 ±1.8° +Copper
-200.0 to -50.0 ±0.5° -328.0 to -58.0 ±0.9°
-50.0 to 0.0 ±0.2° -58.0 to 32.0 ±0.4°
0.0 to 400.0 ±0.1° 32.0 to 752.0 ±0.2°
E -240.0 to -200.0 ±0.4° -400.0 to -328.0 ±0.7° +Chromel
-200.0 to -100.0 ±0.2° -328.0 to -148.0 ±0.4°
-100.0 to 850.0 ±0.1° -148.0 to 1562.0 ±0.2°
850.0 to 1000.0 ±0.2° 1562.0 to 1832.0 ±0.4°
R -18.3 to 250.0 ±1.2° -1.0 to 482.0 ±2.2° +Pt/13Rh
250.0 to 750.0 ±0.6° 482.0 to 1382.0 ±1.1°
750.0 to 1600.0 ±0.5° 1382.0 to 2192.0 ±0.9°
1600.0 to 1767.8 ±0.6° 2192.0 to 3214.0 ±1.1°
S -18.3 to 100.0 ±1.2° -1.0 to 212.0 ±2.1° +Pt/10Rh
100.0 to 400.0 ±0.8° 212.0 to 752.0 ±1.4°
400.0 to 1700.0 ±0.6° 752.0 to 3092.0 ±1.1°
1700.0 to 1767.8 ±0.7° 3092.0 to 3214.0 ±1.3°
B 315.6 to 550.0 ±1.8° 600 to 1022.0 ±3.2° +Pt/30Rh
550.0 to 900.0 ±1.1° 1022.0 to 1652.0 ±2.0°
900.0 to 1150.0 ±0.7° 1652.0 to 2102.0 ±1.3°
1150.0 to 1820.0 ±0.6° 2102.0 to 3308.0 ±1.1°
°C Degrees F
Range
°F T/C
Material
-Connstantan
-Alumel®
-Constantan
-Constantan
-Platinum
-Platinum
-Pt/6Rh
Note: Doesn’t include cold junction error of ±0.05°C
T/C Degrees C
Range
N -230.0 to -180.0 ±1.0° -382.0 to -292.0 ±1.8° +Nicrosil
-180.0 to -50.0 ±0.5° -292.0 to -58.0 ±0.9°
-50.0 to 1100.0 ±0.2° -58.0 to 2012.0 ±0.4°
1100.0 to 1300.0 ±0.3° 2012.0 to 2372.0 ±0.5°
G
100.0 to 150.0 ±1.2° 212.0 to 302.0 ±2.2° +Tungsten
(W)
150.0 to 400.0 ±0.8° 302.0 to 752.0 ±1.4°
400.0 to 1700.0 ±0.4° 752.0 to 3092.0 ±0.7°
1700.0 to 2320.0 ±0.7° 3092.0 to 4208.0 ±1.3°
C
-1.1 to 1500 ±0.5° 30.0 to 2372.0 ±0.9° +W5/Re
(W5)
(W3)
Platinel®
J-DIN
T-DIN
1500 to 1900 ±0.6° 2372.0 to 3452.0 ±101°
1900.0 to 2100.0 ±0.7° 3452.0 to 3812.0 ±1.3°
2100.0 to 2320.0 ±0.9° 3812.0 to 4208.0 ±1.6°
D
-1.1 to 50.0 ±0.6° 30.0 to 122.0 ±1.1° +W3/Re
50.0 to 1400.0 ±0.4° 122.0 to 2552.0 ±0.7°
1400.0 to 1800.0 ±0.5° 2552.0 to 3272.0 ±0.9°
1800.0 to 2320.0 ±0.9° 3272.0 to 4208.0 ±1.6°
0.0 to 1000.0 ±0.2° 32.0 to 1832.0 ±0.4°
P
1000.0 to 1395.0 ±0.3° 1832.0 to 2543.0 ±0.5°
L
-200.0 to -50.0 ±0.2° -328.0 to -58.0 ±0.4° +Iron
-50.0 to 500.0 ±0.1° -58.0 to 932.0 ±0.2°
500.0 to 900.0 ±0.2° 932.0 to 1652.0 ±0.4°
U
-200.0 to -75.0 ±0.3° -328.0 to -103.0 ±0.5° +Copper
-75.0 to 100.0 ±0.2° -103.0 to 212.0 ±0.4°
100.0 to 600.0 ±0.1° 212.0 to 1112.0 ±0.2°
°C Degrees F
Range
DIN Colors
°F T/C
Material
-Nisil
-W26/Re
-W26/Re
-W25/Re
+Pd55/Pt31/Au14
-Au65/Pd35
-Connstantan
-Constantan
Practical Instrument Electronics
82 Est Main Street Suite 3.14 Webster, NY 14580
Tel: 585.872.9350 • Fax: 585.872.2638
sales@piecal.com • www.piecal.com
Copyright © 2017 All rights reserved 422Plus-9001 - Rev A 23 June 2017
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