APG PT-L1, PT-L3, PT-L10 Operating Manual

APG

PT-L Pressure Transducer

User Manual

Amplied Output Series

R

Doc #9004131

Rev A3, 01/18

Table of Contents

Introduction ................................................................................................................ iii

Warranty and Warranty Restrictions .................................................................... iv

Chapter 1: Specications and Options.....................................................................1

Dimensions ........................................................................................................................................1

Specications ...................................................................................................................................2

Model Number Congurator .......................................................................................................... 3

Electrical Connectors, Pinout Table, and Supply Power Table .............................................. 4

Wiring Diagrams .............................................................................................................................. 5

Chapter 2: Installation and Removal Procedures and Notes ..............................5

Tools Needed .....................................................................................................................................5

Mounting Instructions ................................................................................................................... 6

Electrical Installation .....................................................................................................................6

Removal Instructions .....................................................................................................................6

Chapter 3: Maintenance .............................................................................................7

General Care ...................................................................................................................................... 7

Zero Trimming ...............................................................................................................................7-8

Re-Calibration ................................................................................................................................... 8

Repair and Returns .......................................................................................................................... 8

ii

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Introduction

Thank you for purchasing a PT-L amplied series pressure transmitter from APG. We appreciate your
business! Please take a few minutes to familiarize yourself with your PT-L and this manual.

The PT-L series of pressure transmitters oers economical reliability over a wide range of pressures. The
small size, integrated electronics, wide operating temperature range, and durability, make the PT-L the
perfect instrument with an amplied output signal for static and dynamic pressure measurements.

Reading your label

Every APG instrument comes with a label that includes the instrument’s model number, part number, serial
number, and a wiring pinout table. Please ensure that the part number and pinout table on your label
match your order.

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iii

Warranty and Warranty Restrictions

This product is covered by APG’s waranty to be free from defects in material and workmanship under
normal use and service of the product for 24 months. For a full explanation of our Warranty, please visit

https://www.apgsensors.com/about-us/terms-conditions. Contact Technical Support to recieve a Return

Material Authorization before shipping your product back.

Scan the QR code below to read the full explanation of our Warranty on your tablet or smartphone.

iv

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Chapter 1: Specications and Options

• Dimensions

3.90

[99.1]

.25

[6.4]

.55

[14.0]

LOC-TITE®

Automation Products Group

Model #:

Part #: Range:

1025 West 1700 North

Logan, UT 84321 USA
Phone [phone]

3/4" HEX

1/4" NPT

K0, E3 - KNURLED NUT, 4-PIN BAYONET

4-PIN BAYONET w/ KNURLED NUT

CAN - PROCESS CONNECTION w/ LOC-TITE®

3.54

[89.9]

.25

[6.4]

.55

[14.0]

WELDED CONNECTION

Automation Products Group

Model #:

Part #: Range:

1025 West 1700 North

Logan, UT 84321 USA
Phone [phone]

.75

[19.1]

LENGTH PER ORDER

.75

[19.1]

3.92

[99.6]

.25

[6.4]

.55

[14.0]

LOC-TITE®

Automation Products Group

Model #:

Part #: Range:

1025 West 1700 North

Logan, UT 84321 USA

Phone [phone]

3/4" HEX

1/4" NPT

K1, E4 - TAMPER RESISTANT NUT, 4-PIN M12

EUROFAST M12 w/ TAMPER RESISTANT NUT & LOC-TITE®

CAN - PROCESS CONNECTION w/ LOC-TITE®

3.97

[100.8]

.25

[6.4]

.55

[14.0]

WELDED CONNECTION

Automation Products Group

Model #:

Part #: Range:

1025 West 1700 North

Logan, UT 84321 USA

Phone [phone]

.75

[19.1]

M12x1

TAMPER RESISTANT
w/ LOC-TITE®

.75

[19.1]

3/4" HEX

1/4" NPT

TAMPER RESISTANT
w/ LOC-TITE®

K2, E5 - TAMPER RESISTANT NUT, PIGTAIL

CABLE PIGTAIL W/ TAMPER RESISTANT NUT & LOC-TITE®

CAN - PROCESS CONNECTION WELDED

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3/4" HEX

1/4" NPT

K3, E3 - WELDED 4-PIN BAYONET

4-PIN BAYONET, WELDED CONNECTION

CAN - PROCESS CONNECTION WELDED

WELDED CONNECTION

1

• Specications

Performance

Pressure Ranges 0 to 10K PSIS
Analog Output 4-20mA, 0/1-5VDC, 1-6VDC, 0/1-10VDC
Over Pressure 1.5X Full Scale or limit of tting, whichever is less
Burst Pressure 3.0X Full Scale or limit of tting, whichever is less
Life span 10 million cycles minimum

Accuracy

Linearity, Hystereses & Repeatability ±0.25% of Full Scale (BFSL) up to ±0.1% of Full Scale
Thermal Zero Shift ±0.036% FSO/°C (±0.02% FSO/°F)
Thermal Span Shift ±0.036% FSO/°C (±0.02% FSO/°F)
1 Year Stability 15-5 SS: ±0.5% FSO
17-4 SS: ±0.5% FSO
316L SS: ±1% FSO
Zero Balance Adjust ±1% FSO

Environmental

Standard Compensated Temperature 0 to 130°F (-17 to 54°C)
Extended Compensated Temperature -40 to 180°F (-40 to 82°C)
Extended Compensated Temperature 0 to 185°F (-17 to 85°C)
Humidity 0 to 90%

Electrical

Supply Voltage (at sensor) 4-20 mA: 10-36 VDC
0 or 1 to 5 VDC: 9-33 VDC
1 to 6 VDC: 9-33 VDC
0 or 1 to 10 VDC: 14-33 VDC
Input Current 4-20 mA: 3-30 mA max
0 or 1 to 5 VDC: 15 mA max
1 to 6 VDC: 15 mA max
0 or 1 to 10 VDC: 15 mA max
Protection Reverse Polarity

Masterials of Construction

Materials 15-5, 17-4, or 316L Stainless Steel

Mechanical

Process Connection See Model Number Congurator for complete list

2

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• Model Number Congurator

Model Number: PT- _____ - C - _____ - _____ - _____ - _____ - _____ - _____ - _____ - _____ - _____ - _____ - _____
A B C D E F G H I J K L

A. Operation

□ L1 4-20 mA □ L11 1-6 VDC
□ L3 0-5 VDC □ L12 1-5 VDC
□ L10 0-10 VDC □ L21 1-10 VDC

B. Common Pressure Ranges - PSI*

□ 5 □ 50 □ 200 □ 1000 □ 5000

□ 15 □ 60 □ 300 □ 2000 □ 10000

□ 30 □ 100 □ 500 □ 3000

*Other ranges available. Please consult factory.

C. Unit of Measure

▲

□ PSI

□ bar □ inH

□ kPa □ inHg

O □ kgcm

2

2

□ mbar □ mmHg □ fsw

D. Pressure Type

□ G Gauge □ A Absolute
□ CG Compound Gauge □ S Sealed
□ V Vac

G. Process Connection

▲

□ P0

1/4-18 NPTM □ P16 PT 1/4 (BSPP) male

□ P4 7/16 SAE male □ P22 G3/8 (3/8 BSPP) male

ush mount

□ P5 1/4-18 NPTF □ P23 G1/2 (1/2 BSPP) male
□ P7 7/16-20 SAE male □ P30 High Pressure Sno Trik

(M-250C, Autoclave male)

□ P14 1/8-27 NPTM □ P54 7/16-20 UNJF-3A male

w/ cone

H. Accuracy

1-5,000 PSI

▲

□ N0*

±0.25%

□ N1* ±0.25% with NIST certication
□ N2 ±0.1% with NIST certication

*

Note: ±0.25% available at 10,000 psi for 4-20 mA output only.

10,000 PSI

□ N12 ±0.5%
□ N13 ±0.5% with NIST certication

I. Materials

□ M0 15-5 SS (available on ranges 1,000 psi and above)

▲

□ M1

316L SS (available on ranges up to 5,000)

□ M2 17-4 SS (available on ranges 1,000 psi and above)

E. Electrical Connection

Mating connector sold separately

□ E1 6-pin circular
□ E3 4-pin bayonet
□ E4 4-pin M12 Micro connector

▲

□ E5

Pigtail with cable (specify length below)

□ E17 6-pin bayonet

F. Electrical Cable Length

□ ___ Number represents cable length, in 5-ft

increments, included on E5 pigtail option
above.
(ex. E5-10 represents pigtail with 10 ft. cable)

Note: ▲Indicates this option is standard.

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J. Vibration

▲

□ V0

Standard

□ V1 High (not available with K0)

K. Can Assembly Connections

Can - Elec Conn. Can - Process Conn. E Options

▲

□ K0

□ K1

□ K2

□ K3

* Tamper Resist: Smooth Nut with Loc-Tite

L. Temperature

□ S0

Knurl Loc-Tite E1 - E5

Tamper Resist* Loc-Tite E1 - E5

Tamper Resist* Weld E1 - E5

Weld Weld E3, E17

▲

Standard: 0º - 130ºF (-17º - 54ºC)

□ S1 Extended: -40º - 180ºF (-40º - 82ºC)
□ S4 Extended: 0º - 185ºF (-17º - 85ºC)

3

• Electrical Connectors, Pinout Table, and Supply Power Table

PT-L Pin Out Table

4-20 mA 0/1-5/6 VDC 0/1-10 VDC

F

A

E

B

C

D

6 Pin

Circular

Connector

6 Pin

A + Excitation + Excitation + Excitation

B - Excitation + Output + Output

C N/C - Output - Output

Circular

D N/C -Excitation -Excitation

E N/C N/C N/C

F N/C N/C N/C

6 Pin

4 Pin

4 Pin

Pigtail

A + Excitation + Excitation + Excitation

B - Excitation + Output + Output

C N/C - Output - Output

D N/C - Excitation - Excitation

Bayonet

E N/C N/C N/C

F N/C N/C N/C

A + Excitation + Excitation + Excitation

B - Excitation + Output + Output

C N/C - Output - Output

Bayonet

D N/C - Excitation - Excitation

1 + Excitation + Excitation + Excitation

2 - Excitation + Output + Output

M12

3 N/C - Output - Output

4 N/C - Excitation - Excitation

Red + Excitation + Excitation + Excitation

Grn N/C + Output + Output

Wht N/C - Output - Output

Blk - Excitation - Excitation - Excitation

A

F

E

A

B

+

3

B

C

D

D

C

4

1

2

6 Pin

Bayonet

Connector

4 Pin

Bayonet

Connector

4 Pin M12

Micro

Connector

N/C indicates no connection
For alternate pinouts, please consult factory

PT-L Series Supply Power Table

4-20 mA 0/1-5/6 VDC 0/1-10 VDC

Power Supply 10-36 VDC 9-33 VDC 14-33 VDC

4

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• Wiring Diagrams

PT-L1

4-20 mA Output

+ Excitation

– Excitation

4-20 mA

Current

Loop

4-20 mA Output Wiring Diagram

PT-L3/10/11/12/21

Voltage Output

+ Excitation

+ Output

- Output

- Excitation

Process

Controller

+VDC

R

L

VDC Source

V+

V-

Signal Receiver

Input+

The 4-20 mA PT-L1 is a 2 wire, loop powered transducer/
transmitter. A voltage of between 10 and 36 VDC must
be maintained at this connection. Completion of the
earth or system ground is recommended for proper
circuit protection.

Power supply voltage must be sucient to maintain
a minimum of 9 VDC at the transducer/transmitter
terminals after “dropping” voltage across RL at full scale
current (20 mA). Example: If RL = 250 Ω then “drop” is

0.02 Amps X 250 Ω = 5 volts. Therefore power supply
minimum is 5V + 10V = 15V.

Input-

Voltage Output Wiring Diagram

Chapter 2: Installation and Removal Procedures and Notes

• Tools Needed

• Wrench sized appropriately for your PT-L’s process connection (usually 3/4”).

• Thread tape or sealant compound for threaded connections.

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5

• Mounting Instructions

Mounting your pressure transducer is easy if you follow a few simple steps:

• Never over-tighten the sensor. This can compress the diaphragm, changing how it reacts to pressure.
In all cases, tighten the sensor as little as possible to create an adequate seal. On straight threads,
tighten only until you feel the o-ring compress - making sure you don’t damage or extrude the o-ring.

• Always use thread tape or sealant compound on tapered threads. Wrap thread tape in the opposite
direction of the threads so it does not unravel as you screw the sensor into place. Unraveling can cause
uneven distribution and seal failure. For straight threads use an o-ring.

• Always start screwing in your sensor by hand to avoid cross-threading. Thread failure can be a problem
if you damage threads by over-tightening them or by crossing threads.

• Electrical Installation

• Check the pinout table on your PT-L against your order.

• Check that your electrical system wiring matches the pinout table on your PT-L.

• For instruments with connectors, make the connection. For instruments with pigtails, run the cable to

a junction box in a suitable location to connect to your system.

• Removal Instructions

Removing your PT-L from service must be done with care. It’s easy to create an unsafe situation, or damage
your sensor, if you are not careful to follow these guidelines:

• Make sure the pressure is completely removed from the line or vessel where your sensor is installed.
Follow any and all procedures for safely isolating any media contained inside the line or vessel.

• Remove the sensor with an appropriately sized wrench (per your process connection).

• Carefully clean the sensor’s tting and diaphragm of any debris (see General Care) and inspect for

damage.

• Store your sensor in a dry place, at a temperature between -40° F and 180° F.

 DANGER: Removing your PT-L Pressure Transmitter while there is still pressure in the

line could result in injury or death.

6

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Chapter 3: Maintenance

• General Care

Your PT-L series pressure transmitter is very low maintenance and will need little care as long as it was
installed correctly. However, in general, you should:

• Keep the transmitter and the area around it generally clean.

• Avoid applications for which the transmitter was not designed, such as extreme temperatures, contact

with incompatible corrosive chemicals, or other damaging environments.

• Inspect the threads whenever you remove the transmitter from duty or change its location.

• Avoid touching the diaphragm. Contact with the diaphragm, especially with a tool, could permanently

shift the output and ruin accuracy.

• Clean the diaphragm or the diaphragm bore with extreme care. If using a tool is required, make sure it
does not touch the diaphragm.

 IMPORTANT: Any contact with the diaphragm can permanently damage the sensor.

Use extreme caution.

 NOTE: Non-sealed sensors have a small vent hole that must not be covered or closed.

Covering, closing, or otherwise sealing this hole will prevent proper sensor operation.

• Zero Trimming

If it becomes necessary to re-adjust “zero”, this can be accomplished by adjusting the trimpot marked “Z”.
An ideal zero is indicated by an output of 4 mA, 0 VDC or 1 VDC, depending on your model.

• Remove the knurled nut. If your transducer does not have a knurled nut, your transducer can not be
eld adjusted. You can return the transducer to the factory for repair and/or adjustment.

• Carefully remove the connector or pigtail from the body of the transducer and pull it all the way out so
that the amplier board is exposed. Do not over extend the ribbon cable that attaches the amplier
board to the sensor.

• Reconnect the device with the loop powered circuit and have access to a method of monitoring the
output of the transducer.

• Ensure that the transducer is at 0 psig or 0 psia (vacuum if absolute).

• Using a jewelers screwdriver or suitable instrument, adjust the “Z” pot (See Figure 3.1) until you have

zero output.

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7



IMPORTANT: Do not make changes to the Span adjust-
ment (the “S” pot to the right, see Figure 3.1) as part of the
zero trimming. The Span should only be changed as part
of the recalibration of a transducer with a known pressure

Figure 3.1

source.

• Re-Calibration

This procedure requires a known pressure source of at least ±0.1% accuracy in order to fully utilize the
accuracy potential of the PT-L. (If not available, you can return it to the factory for re-calibration.)

• Ensure that the transducer is at 0 psig or 0 psia (vacuum if absolute), and adjust zero as per instruc­tions for zero trimming.

• Apply full scale pressure to the pressure port and adjust the Span (“S”) pot (on the right of Figure 3.1)
until the full scale signal is reached.

• Re-check zero and re-adjust the zero (“Z”) pot if required

• Repeat previous two steps until no further adjustment is required.



NOTE: You may also return the PT-L to the factory for repair and/or adjustment.

• Repair and Returns

Should your PT-L series pressure transmitter require service, please contact the factory via phone, email, or
online chat. We will issue you a Return Material Authorization (RMA) number with instructions.

• Phone: [phone]

• Email: [e-mail]

• Online chat at www.apgsensors.com

Please have your PT-L’s part number and serial number available. See Warranty and Warranty Restrictions
for more information.

8

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9

APG

R

Tel: [phone] • Fax: [phone] • www.apgsensors.com • [e-mail]

Automation Products Group, Inc.