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Rosemount
Rosemount 248H HART Temperature Transmitter
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248H: head-mount HART; Pt100 −200…850 °C; RTD/TC/ohm/mV; 4–20 mA. RFQ.
Download datasheet PDF
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Key parameters
Accuracy
Pt100 (IEC 751) digital ±0.15 °C / D/A ±0.10% of span; enhanced accuracy option P8 ±0.1 °C digital
Output
2-wire 4–20 mA with HART digital (Rev 5 default; HR7 optional)
Supply
12.0 to 42.4 Vdc at terminals; load 250–1100 Ω; ≥17.75 Vdc with 250 Ω for HART
Ambient temperature
Standard −40 to +85 °C (−40 to +185 °F); cold options BR5/BR6 extend low end to −51/−60 °C; feature range −50 to +85 °C
Mounting
DIN B head mount (248H) with variety of enclosure options
Sensor Inputs
Single sensor; universal RTD, thermocouple, potentiometer, linear resistance, bipolar mV
Fits HART-capable head-mount temperature loops where you need a Rosemount 248H—4–20 mA with HART accepting Pt100 (−200…+850 °C) plus RTD, thermocouple, ohm, and mV inputs.
Key advantages
- Inputs — Pt100 −200…+850 °C; RTD, T/C, ohm, mV
- Output — 4–20 mA with HART
- Form — Head-mount 248H
- Use — Single-channel HART temperature
- Platform — Rosemount 248 family
Typical applications
- HART thermowell heads.
- Commissionable RTD/TC loops.
- Plant standard temperature points.
Selection guide
- 248H vs 248R rail
- Sensor type
- HART handheld/tools
Common mistakes
- Ordering 148 when HART required.
- Wrong CJC awareness for TC.
- Rail space needed but head ordered.
When to RFQ / what to tell us
- Sensor, range.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 38780 |
| Brand | Rosemount |
| Model | Rosemount 248H Temperature Transmitter |
| Product type | Temperature Transmitter |
| Type | Head-mount HART temperature transmitter (Rosemount 248H) |
| Inputs | Pt100 −200…+850 °C; RTD, T/C, ohm, mV |
| Output | 4–20 mA with HART |
| Feature | HART-capable single-channel temperature transmitter |
Documents
FAQ
Q: HART? A: Yes — 4–20 mA with HART.
Q: vs 248R? A: 248H is head-mount; 248R is rail-mount.
Q: What should I send for a quote? A: Sensor/range, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | Pt100 (IEC 751) digital ±0.15 °C / D/A ±0.10% of span; enhanced accuracy option P8 ±0.1 °C digital |
| Output | 2-wire 4–20 mA with HART digital (Rev 5 default; HR7 optional) |
| Supply | 12.0 to 42.4 Vdc at terminals; load 250–1100 Ω; ≥17.75 Vdc with 250 Ω for HART |
| Ambient temperature | Standard −40 to +85 °C (−40 to +185 °F); cold options BR5/BR6 extend low end to −51/−60 °C; feature range −50 to +85 °C |
| Mounting | DIN B head mount (248H) with variety of enclosure options |
| Sensor Inputs | Single sensor; universal RTD, thermocouple, potentiometer, linear resistance, bipolar mV |
| Stability | RTD ±0.25% of reading or 0.25 °C (5 yr); RTD/TC option ±0.1% of reading or 0.1 °C (whichever greater) |
| Isolation | Input/output isolation 500 Vac rms (707 Vdc); feature galvanic isolation 2.5 kVAC |
| Humidity | 0 to 95% RH non-condensing |
| Update Rate | <0.5 s; turn-on <5 s (damping 0) |
| Damping | 0–32 s (default 5 s) |
| Diagnostics | Open/short sensor diagnostics; NAMUR NE21/NE43; SIL 2 capable (option QT) |