APG PT-300 Pressure Transmitters Installation Guide
- June 13, 2024
- APG
Table of Contents
**APG PT-300 Pressure Transmitters Installation Guide
**
Thank You
Thanks for purchasing a PT-300 pressure transmitter from us! We appreciate
your business and your trust. Please take a moment to familiarize yourself
with the product and this manual before installation. If you have any
questions, at any time, don’t hesitate to call us at 888-525-73
NOTE: Scan the QR code to the right to see the full user manual on your
tablet or smartphone. Or visit
www.apgsensors.com/support to find it on
our website.
Description
The PT-300 series pressure transmitter offers reliability over a wide range of pressures and in harsh industrial conditions.
How To Read Your Label
Each label comes with a full model number, a part number, and a serial number. The model number for the PT-300 or PT-301 will look something like this:
SAMPLE: PT-300-L1-100-psi-G-E5-5-P5-N3-M1-S0
The model number correlates with all the configurable options and tells you exactly what you have. Compare the model number to the options on the datasheet to identify your exact configuration. You can also call us with the model, part, or the serial number and we can help you.
The label aslo includes the pinout, as does this installation guide.
You’ll also find all hazardous certification information on the label.
Warranty
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.
Dimensions
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, tigthen 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. Straight threads use an o-ring. If using thread tape, wrap the tape in the opposite direction of the threads so it does not unravel as you screw it into place. Unraveling can cause uneven distribution and seal failure.
- 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.
Wiring Information
PT-300 Pin Out Table
| 4-20 mA| 0-5 VDC| 0-10 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
6 Pin Bayonet Connector
| 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-300 Supply Power Table
| Power Supply | 4-20 mA | 0-5 VDC | 0-10 VDC |
|---|---|---|---|
| 9-28 VDC | 9-28 VDC | 12.5-28 VDC |
Typical 4-20 mA Circuit
Excitation Voltage
4-20 mA : 9-28 VDC
Typical 0-5 and 0-10 VDC Circuit
Excitation Voltage
0-5 VDC: 9-28 VDC
0-10 VDC: 12.5-28 VDC
Removal Instructions
Removing your pressure transducer from service must be done with care. It’s easy to create an unsafe situation, or to 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).
- Clean the sensor’s threads of any sealant compound or tape. Inspect the threads and the diaphragm for any damage.
- Store your sensor in a dry place between 14° and 140° F (-10° – 60° C)
DANGER: Removing the pressure transmitter while there is still pressure in the line or vessel could result in injury or death.
General Care
Your pressure transmitter is very low maintenance and will need little care. As long as it was installed correctly, it can be However, in general, you should:
- Keep the sensor and area around it generally clean.
- Avoid applications for which the sensor was not designed, such as extrememe temperatures, contact with incompatible corrosive chemicals, or other damaging environments.
- Inspect the threads whenever you remove the sensor 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.
- Cleaning the diaphragm or the diaphragm bore should be done with extreme care. If using a tool is required, make sure it does not touch the diaphram.
IMPORTANT: Any contact with the diaphragm can permanently damage the sensor. Use extreme caution.
Repair Information
If your pressure transmitter needs repair, contact us via email, phone, or online chat on our website. We will issue you an RMA number with instructions.
- Phone: 888-525-7300
- Email: [email protected]
- Online chat at www.apgsensors.com