The Model 261AC is an absolute pressure transmitter with a direct mount seal and stainless steel housing, designed for harsh environments in oil and gas, chemical, food, and pharmaceutical industries. It provides measuring ranges from 0.3 kPa to 60000 kPa absolute, ±0.1% base accuracy, and a turn-down ratio up to 20:1. Configurable damping spans 0 to 60 seconds. Local configuration is supported via buttons or a handheld terminal. Process connections use flush diaphragms in AISI 316L stainless steel, Hastelloy C-276, or tantalum with optional FDA-approved fluids. Compliance includes PED under Sound Engineering Practice and RoHS II. Insulation resistance exceeds 100 MΩ at 500 V DC, and warm-up time is under 10 seconds. Output is 4-20 mA with HART communication. Electrical connections include M16, M20, NPT, Han, and miniature types. Explosion protection certifications include ATEX, IECEx, FM, and CSA intrinsic safety.
The compact, robust transmitter housing is made of 316 stainless steel as a standard. Due to its high corrosion resistance it can be used in a wide variety of process and ambient conditions without any problems.
The user friendly display allows simple and intuitive local transmitter operation. Full device support, including diagnostic / maintenance information is guaranteed via the Device Type Manager software used in either a stand alone or system engineering tool. The transmitter provides local zero and span adjustments even without display.
The wide range of available process connections meets even special industrial requirements:
| ABB Measurement & Analytics | |
|---|---|
| Product Category | Pressure Transmitters |
| Product Number | Model 261AC |
| Product Name | Absolute Pressure Transmitter |
| Signal Output | Analog Current |
| Pressure Measurement | Absolute |
| Media | Liquid; Gas; Handles Hazardous Materials |
| Working Pressure Range | -5.8 to 8700 psi (-4.08 to 6123 m H2O) |
