A-R-DIALTEMP

Supported Applications

The Omega A, R, B, and S series comprises hermetically sealed bimetal thermometers designed for direct temperature indication. These instruments feature stainless steel construction (except the dial) and are configured with a minimum stem length of 4" to accommodate process insertion requirements.

• Temperature monitoring in industrial processes requiring local readout
• Applications utilizing Fahrenheit, Celsius, or dual-range scales as specified by model selection

Operating Conditions & Performance

The series supports a broad envelope of temperature ranges documented across the A/R and B/S models. Measurement capabilities span from -100 to 100°F (-50 to 200°C) up to high-temperature limits such as 200 to 1000°F (100 to 500°C). Specific range options include:

• Fahrenheit ranges: -100 to 100°F, 0 to 300°F, 50 to 550°F, and up to 200 to 1000°F
• Celsius ranges: -50 to 200°C, 0 to 400°C, and up to 100 to 500°C
• Dual-range configurations available (e.g., -50 to 100°C / -50 to 210°F)

Scale divisions vary by range, with values such as ½°, 1°, 2°, 5°, and 10° documented in the specification tables. The probe diameter is specified at 0.63 in.

Configuration Options

Housing and Mounting Options

The series offers distinct housing configurations identified by model letter:

• Models A and R: Feature external pointer reset capability; overall dimensions are 0.69 in width, 3.0 in height, and 0.31 in depth.
• Models B and S: Overall dimensions are 0.69 in width, 5.0 in height, and 0.31 in depth.

Process Connections

Mounting is achieved via a ½ NPT bushing (mounting nut). The series supports customizable stem lengths with a minimum of 4"; specific lengths are specified between points during ordering.

Sensor and Material Specifications

• Housing Material: Stainless Steel
• Sheath/Wetted Materials: Stainless Steel
• Dial Construction: Non-stainless steel (as noted in product overview)

Key Product Differences

The primary distinction between the model families lies in their physical dimensions and reset functionality. Models A and R share identical overall height of 3.0 in, while Models B and S are taller at 5.0 in; both groups maintain a width of 0.69 in and depth of 0.31 in.

• Models A and B include an external pointer reset feature.
• Dual-range scales (e.g., -40 to 70°C / -40 to 160°F) are available across the series, with specific divisions listed per range row.

Pricing for stem lengths is referenced as requiring online consultation. Dual ranges and special configurations require sales contact for information.