APG PT-L Pressure Transducer User Manual

: June 17, 2024
: APG

Table of Contents

Introduction
Warranty and Warranty Restrictions
Chapter 1: Specifications and Options
Chapter 2: Installation and Removal Procedures and Notes
Chapter 3: Maintenance
References
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PT-L Pressure Transducer
User Manual
Amplified Output Series

Introduction

Thank you for purchasing a PT-L amplified series pressure transducer 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 transducers offers 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 amplified 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.

Warranty and Warranty Restrictions

This product is covered by APG’s warranty 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 www.apgsensors.com/resources /warranty-certifications/warranty- returns/. Contact Technical Support to receive a Return Material Authorization before shipping your product back.

Chapter 1: Specifications and Options

Dimensions**
K0, E3 – KNURLED NUT, 4-PIN BAYONET
4-PIN BAYONET w/ KNURLED NUT
CAN – PROCESS CONNECTION w/ LOC-TITE®| K1, E4 – TAMPER RESISTANT NUT, 4-PIN M12
EUROFAST M12 w/ TAMPER RESISTANT NUT & LOC-TITE®
CAN – PROCESS CONNECTION w/ LOC-TITE®
---|---
K2, E5 – TAMPER RESISTANT NUT, PIGTAIL
CABLE PIGTAIL W/ TAMPER RESISTANT NUT & LOC-TITE®
CAN – PROCESS CONNECTION WELDED| K3, E3 – WELDED 4-PIN BAYONET**
4-PIN BAYONET, WELDED CONNECTION
CAN – PROCESS CONNECTION WELDED
Specifications
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 fitting, whichever is less
Burst Pressure| 3.0X Full Scale or limit of fitting, whichever is less
Life span| 10 million cycles minimum

Accuracy****

Linearity, Hysteresis & 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:
0 or 1 to 5 VDC:
1 to 6 VDC:
0 or 1 to 10 VDC:| 10-36 VDC
9-33 VDC
9-33 VDC
14-33 VDC
---|---|---
Input Current| 4-20 mA:
0 or 1 to 5 VDC:
1 to 6 VDC:
0 or 1 to 10 VDC:| 3-30 mA max
15 mA max
15 mA max
15 mA max
Protection| Reverse Polarity|

Materials of Construction****

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

Mechanical****

Process Connection	See Model Number Configurator for complete list

Model Number Configurator
Model Number:
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▲	□ kPa	□ inHg
□ bar	□ inH2O	□ kgcm2
□ mbar	□ mmHg	□ fsw

D. Pressure Type****

□ G Gauge	□ A Absolute
□ S Sealed

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.
G. Process Connection****

□ P0▲	1/4-18 NPTM
□ P4	7/16 SAE male flush mount
□ P5	1/4-18 NPTF
□ P7	7/16-20 SAE male
□ P14	1/8-27 NPTM
□ P16	PT 1/4 (BSPP) male
□ P22	G3/8 (3/8 BSPP) male
□ P23	G1/2 (1/2 BSPP) male
□ P30	High Pressure Sno Trik (M-250C, Autoclave male)
□ P54	7/16-20 UNJF-3A male w/ cone

H. Accuracy
1-5,000 psi****

□ N0*▲	±0.25%
□ N1*	±0.25% with NIST certification
□ N2	±0.1% with NIST certification

*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 certification

I. Materials****

□ M0	15-5 SS (≥ 1,000 psi)
□ M1▲	316L SS (< 5,000 psi)
□ M2	17-4 SS (≥ 1,000 psi)

J. Vibration****

□ V0▲	Standard
□ V1	High (not available with K0)

K. Can Assembly Connections****

| Can – Elec Conn.| Can – Process Conn.| E Options
---|---|---|---
□ K0▲| Knurl| Loc-Tite| E1 – E5
□ K1| Tamper Resist| Loc-Tite| E1 – E5
□ K2| Tamper Resist| Weld| E1 – E5
□ K3| Weld| Weld| E3, E17

Tamper Resist: Smooth Nut with Loc-Tite
L. Temperature Compensation Range****

□ S0▲	Standard: 0º – 130ºF (-17º – 54ºC)
□ S1	Extended: -40º – 180ºF (-40º – 82ºC)
□ S4	Extended: 0º – 185ºF (-17º – 85ºC)
□ S11▲	No Temperature Specification (≤ 5 psi)

Electrical Connectors, Pinout Table, and Supply Power Table
PT-L Pin Out Table
6 Pin Circular| 4-20 mA| 0/1-5/6 VDC| 0/1-10 VDC
---|---|---|---
A| + Excitation| + Excitation| + Excitation
B| – Excitation| + Output| + Output
C| N/C| – Output| – Output
D| N/C| -Excitation| -Excitation
E| N/C| N/C| N/C
F| N/C| N/C| N/C

APG PT-L Pressure Transducer - Electrical Connectors 1 6 Pin Circular Connector
6 Pin Bayonet

A	+ Excitation	+ Excitation	+ Excitation
B	– Excitation	+ Output	+ Output
C	N/C	– Output	– Output
D	N/C	– Excitation	– Excitation
E	N/C	N/C	N/C
F	N/C	N/C	N/C

6 Pin Bayonet Connector
4 Pin Bayonet

A	+ Excitation	+ Excitation	+ Excitation
B	– Excitation	+ Output	+ Output
C	N/C	– Output	– Output
D	N/C	– Excitation	– Excitation

APG PT-L Pressure Transducer - Electrical Connectors 3 4 Pin Bayonet Connector
4 Pin M12

1	+ Excitation	+ Excitation	+ Excitation
2	– Excitation	+ Output	+ Output
3	N/C	– Output	– Output
4	N/C	– Excitation	– Excitation

4 Pin M12 Micro Connector
Pigtail

Red	+ Excitation	+ Excitation	+ Excitation
Grn	N/C	+ Output	+ Output
Wht	N/C	– Output	– Output
Blk	– Excitation	– Excitation	– Excitation

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

Wiring Diagrams 4-20 mA Output Wiring Diagram
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 sufficient to maintain a minimum of 9 VDC at the transducer/transmitter terminals after “dropping” voltage across R at full scale current (20 mA). Example: If R = 250 Ω then “drop” is 0.02 Amps X 250 Ω = 5 volts. Therefore power supply minimum is 5 V + 10 V = 15 V. 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.
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 fitting 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 Transducer while there is still pressure in the line could result in injury or death.

Chapter 3: Maintenance

General Care
Your PT-L series pressure transducer is very low maintenance and will need little care as long as it was installed correctly. However, in general, you should:
• Keep the transducer and the area around it generally clean.
• Avoid applications for which the transducer was not designed, such as extreme temperatures, contact with incompatible corrosive chemicals, or other damaging environments.
• Inspect the threads whenever you remove the transducer 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 field 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 amplifier board is exposed. Do not over extend the ribbon cable that attaches the amplifier 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. IMPORTANT: Do not make changes to the Span adjustment (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 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 transducer 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: 888-525-7300
• Email: sales@apgsensors.com
• Online chat at www.apgsensors.com