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General
The Rosemount 248HANAN0NS is a DIN B head-mount temperature transmitter manufactured by Emerson. It is designed for single-point industrial temperature measurement, converting compatible temperature sensor signals into a two-wire 4–20 mA output with HART digital communication for integration into process control and monitoring systems.

This configuration is supplied without hazardous-area product approval, an enclosure or a temperature sensor. Its universal sensor input supports RTD, thermocouple, resistance and millivolt signals, providing flexibility for a wide range of industrial temperature measurement applications.

Features
- DIN B head-mount temperature transmitter design.
- Two-wire 4–20 mA output with HART digital communication.
- Universal input for RTD, thermocouple, resistance and millivolt signals.
- Single-sensor measurement capability.
- No hazardous-area product approval included.
- Supplied without an enclosure.
- Supplied without a temperature sensor.
- Open- and short-sensor diagnostics.
- One-year stability rating.
- Transmitter-sensor matching using Callendar–Van Dusen constants.
- Automatic self-calibration.
- Suitable for industrial process temperature monitoring.

Key Specifications
- Brand: Rosemount
- Manufacturer: Emerson
- Model: 248
- Manufacturer Part Number: 248HANAN0NS
- Supplier Listing Part Number: 248HANANONS
- Product Type: Head-Mount Temperature Transmitter
- Transmitter Type: DIN B Head Mount
- Output Signal: Two-wire 4–20 mA with HART digital communication
- Sensor Input: RTD, thermocouple, resistance and millivolt
- Sensor Configuration: Single sensor
- Product Certification: NA – No approval
- Enclosure: N – No enclosure
- Conduit Entry: 0 – No enclosure
- Sensor Assembly Option: NS – No sensor
- Power Supply: 12.0–42.4 V DC at transmitter terminals
- Minimum Supply Voltage: 17.75 V DC with 250 Ω load
- Operating Ambient Temperature: −40 to +85 °C
- Humidity: 0–95% RH, non-condensing
- Update Rate: Less than 0.5 seconds
- Damping: 5 seconds default; adjustable up to 32 seconds
- Turn-On Time: Less than 5 seconds with zero damping
- Input/Output Isolation: Tested to 500 V AC RMS
- Transmitter Weight: Approximately 42 g

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