The ABB PAD300 is an all-rounder absolute pressure transmitter with an S26 diaphragm seal, designed for industrial applications where direct exposure to the process medium is undesirable or impractical. Its all-welded diaphragm seal construction supports operation under demanding process conditions, while a range of seal designs and process connections helps accommodate different installation requirements.
Key Features
- Absolute pressure measurement for liquids, gases, and steam
- Suitable for liquid level measurement in open tanks
- Base accuracy of ±0.055% of calibrated span
- Span limits from 0.2 to 60,000 kPa, depending on configuration
- S26 diaphragm seal system with all-welded construction
- 4–20 mA output with HART communication
- Backlit local display and key-based configuration
- Easy Set Up and Digital Advanced Diagnostics
- Optional H-Shield technology for demanding hydrogen-permeation conditions
- Multiple process connection standards and certifications, depending on configuration
Applications
Suitable for pressure and level measurement in chemical processing, oil and gas, industrial utilities, and other process industries. The diaphragm seal is particularly useful for viscous, fouling, hazardous, or temperature-sensitive media, and where the transmitter needs to be isolated from the process. Select the diaphragm material, fill fluid, connection, and mounting arrangement according to the actual operating conditions.
Why Choose the ABB PAD300?
The PAD300 combines high measurement accuracy, diaphragm seal isolation, and flexible installation options to support reliable pressure monitoring in challenging industrial processes.
Q1: What is the ABB PAD300 Absolute Pressure Transmitter used for?
It measures absolute pressure in liquids, gases, and steam, and can also measure liquid level in open tanks.
Q2: What is the accuracy of the PAD300?
Its published base accuracy is ±0.055% of calibrated span.
Q3: What is the measuring range of the PAD300?
The published span limits are 0.2 to 60,000 kPa, depending on the selected sensor and configuration.
Q4: What is the purpose of the S26 diaphragm seal?
The S26 diaphragm seal isolates the transmitter from the process medium and transfers pressure through a fill-fluid system. It can be useful for viscous, fouling, hazardous, or high-temperature process conditions.
Q5: Does the PAD300 support HART communication?
Yes. The listed output is 4–20 mA with HART communication and Easy Set Up functionality.
Q6: Does the PAD300 have a local display?
Yes. A backlit display with local key-based configuration is listed. Optional Bluetooth functionality is marked as forthcoming on ABB's page.
Q7: Can the PAD300 measure viscous or fouling media?
A diaphragm seal can help prevent the process medium from entering and blocking impulse lines or transmitter connections. The seal design must be selected for the specific medium.
Q8: Is the PAD300 suitable for high-temperature applications?
Diaphragm seal configurations can accommodate certain demanding process temperatures. The allowable temperature depends on the seal design, fill fluid, mounting arrangement, and transmitter configuration.
Q9: Are different diaphragm seal connections available?
Yes. The S26 family includes different connection designs, including options based on ASME and EN standards. Confirm the required connection and mounting arrangement when ordering.
Q10: How can I request a quotation for the ABB PAD300?
Provide the pressure range, process medium, operating temperature, required flange or process connection, diaphragm material, output protocol, and any required certifications to help identify a suitable configuration.
