250T-RB, 350T-RB, 450T-RB Loop, DC, or AC-Power Transmitter
Product short description:
- Platinum RTD or Copper RTD (resistance temperature sensor) Input
- DC Voltage/Current Output
These models convert sensor inputs to proportional process current or voltage output signals.
Models
250T: Loop-powered transmitter series
350T: DC-powered transmitter series
450T: AC-powered transmitter series
Performance Specifications
Input Ranges:
100 ohm Pt RTD (2, 3, or 4-wire), Pt-385/392
10 ohm Cu RTD (2, 3, or 4-wire)
Output Ranges:
DC Current: 4 to 20mA
DC voltage: 0 to 5V or 0 to 10V
Power Requirements:
250T: 12 to 50V DC @ 20mA (loop-powered)
350T: DC Voltage Source
Output Range Power
4 to 20mA 10 to 36V DC @ 30mA
0 to 5V 10 to 36V DC @ 9mA
0 to 10V 12.5 to 36V DC @ 9mA
450T: 115V or 230V AC, ±10%, 50 to 60Hz
Output Range Power
4 to 20mA 115V AC @ 0.050A
4 to 20mA 230V AC @ 0.025A
0 to 5V, 0 to 10V 115V AC @ 0.020A
0 to 5V, 0 to 10V 230V AC @ 0.010A
Ambient Temperature Range:
Operating: -13 to 185°F (-25 to 85°C)
Storage: -40 to 185°F (-40 to 85°C)
Accuracy:
±0.1% of calibrated span or ±0.25 mV, whichever is greater.
Includes repeat-ability, hysteresis, terminal point linearity, and adjustment resolution.
Ambient Temperature Effect:
RBPx: ±0.01% of output span per °F (±0.018% / °C)
RBCx: ±0.025% of output span per °F (±0.045% / °C)
(Specification includes the combined effects of zero and span over temperature).
Noise Resistance:
RFI: Less than ±0.5% ,of output span effect.
EMI: Less than ±0.25% of output span effect.
Noise Rejection:
Common Mode: 120dB at 60Hz, 100 ohm unbalance.
Normal Mode: 26dB at 60Hz, 100 ohm source, 20dB at 60Hz, 10 ohm source.
Response Time: Output reaches 98% of output span in 350mS.
Bandwidth: -3dB at 3 Hz, typical
Output Compliance:
250T: RLOAD (max.) = (VSUPPLY – 12V) / 20mA
350T: RLOAD (max.) = (VSUPPLY – 2.5V) / 20mA
450T: RLOAD = 600 ohms
- Excellent accuracy and stability ensure reliable measurements in harsh industrial environments
- RTD signal linearization improves accuracy and reduces drift
- RTD break detection indicates open RTD failures with upscale operation
- RTD lead wire compensation eliminates the effect of the wire’s resistance
- RFI and EMI resistance minimize the effects of environmental noise
- 75% span adjustment enables precise application calibration
- Low power consumption (350T as low as 9mA)
- 1500V AC peak isolation (250V AC or 354V DC continuous) prevents ground loops
- 250T models: Input isolated from output/power
- 350T models: Input isolated from output and power. Output and power share a common
- 450T models: 3-way isolation. Input, output, and power circuits are isolated from each other
- Operating temperature range: -13 to 185°F (-25 to 85°C)
- DIN rail G or T mount
- No certification/approval required
Specs & Catalogs
Additional information
Weight | 16 oz |
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Dimensions | 3 × 1 × 3.2 in |
Part Number | 250T-RBP1-DIN-NCR: RTD 100 ohm input: 25 to 100°C (45 to 180°F), loop-powered, 250T-RBP2-DIN-NCR: platinum RTD 100 ohm input: 50 to 200°C (90 to 360°F), loop-powered, 350T-RBP1-Y-DIN-NCR: RTD 100 ohm input: 25 to 100°C (45 to 180°F), 4 to 20mA DC output; DC-powered, 450T-RBP1-Y-1-DIN-NCR: RTD 100 ohm input: 25 to 100°C (45 to 180°F), 4 to 20mA DC output; 115V AC powered |
Product Series | FlatPack Series |
Power | AC Power, DC Power, Loop Power |
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Description
These models convert sensor inputs to proportional process current or voltage output signals.
Models
250T: Loop-powered transmitter series
350T: DC-powered transmitter series
450T: AC-powered transmitter seriesPerformance Specifications
Input Ranges:
100 ohm Pt RTD (2, 3, or 4-wire), Pt-385/392
10 ohm Cu RTD (2, 3, or 4-wire)
Output Ranges:
DC Current: 4 to 20mA
DC voltage: 0 to 5V or 0 to 10V
Power Requirements:
250T: 12 to 50V DC @ 20mA (loop-powered)350T: DC Voltage Source
Output Range Power
4 to 20mA 10 to 36V DC @ 30mA
0 to 5V 10 to 36V DC @ 9mA
0 to 10V 12.5 to 36V DC @ 9mA450T: 115V or 230V AC, ±10%, 50 to 60Hz
Output Range Power
4 to 20mA 115V AC @ 0.050A
4 to 20mA 230V AC @ 0.025A
0 to 5V, 0 to 10V 115V AC @ 0.020A
0 to 5V, 0 to 10V 230V AC @ 0.010AAmbient Temperature Range:
Operating: -13 to 185°F (-25 to 85°C)
Storage: -40 to 185°F (-40 to 85°C)
Accuracy:
±0.1% of calibrated span or ±0.25 mV, whichever is greater.
Includes repeat-ability, hysteresis, terminal point linearity, and adjustment resolution.
Ambient Temperature Effect:
RBPx: ±0.01% of output span per °F (±0.018% / °C)
RBCx: ±0.025% of output span per °F (±0.045% / °C)
(Specification includes the combined effects of zero and span over temperature).
Noise Resistance:
RFI: Less than ±0.5% ,of output span effect.
EMI: Less than ±0.25% of output span effect.
Noise Rejection:
Common Mode: 120dB at 60Hz, 100 ohm unbalance.
Normal Mode: 26dB at 60Hz, 100 ohm source, 20dB at 60Hz, 10 ohm source.
Response Time: Output reaches 98% of output span in 350mS.
Bandwidth: -3dB at 3 Hz, typical
Output Compliance:
250T: RLOAD (max.) = (VSUPPLY – 12V) / 20mA
350T: RLOAD (max.) = (VSUPPLY – 2.5V) / 20mA
450T: RLOAD = 600 ohms -
Features & Benefits
- Excellent accuracy and stability ensure reliable measurements in harsh industrial environments
- RTD signal linearization improves accuracy and reduces drift
- RTD break detection indicates open RTD failures with upscale operation
- RTD lead wire compensation eliminates the effect of the wire’s resistance
- RFI and EMI resistance minimize the effects of environmental noise
- 75% span adjustment enables precise application calibration
- Low power consumption (350T as low as 9mA)
- 1500V AC peak isolation (250V AC or 354V DC continuous) prevents ground loops
- 250T models: Input isolated from output/power
- 350T models: Input isolated from output and power. Output and power share a common
- 450T models: 3-way isolation. Input, output, and power circuits are isolated from each other
- Operating temperature range: -13 to 185°F (-25 to 85°C)
- DIN rail G or T mount
- No certification/approval required
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Specs & Data Sheets
Specs & Catalogs
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Accessories
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Additional information
Additional information
Weight 16 oz Dimensions 3 × 1 × 3.2 in Part Number 250T-RBP1-DIN-NCR: RTD 100 ohm input: 25 to 100°C (45 to 180°F), loop-powered, 250T-RBP2-DIN-NCR: platinum RTD 100 ohm input: 50 to 200°C (90 to 360°F), loop-powered, 350T-RBP1-Y-DIN-NCR: RTD 100 ohm input: 25 to 100°C (45 to 180°F), 4 to 20mA DC output; DC-powered, 450T-RBP1-Y-1-DIN-NCR: RTD 100 ohm input: 25 to 100°C (45 to 180°F), 4 to 20mA DC output; 115V AC powered
Product Series FlatPack Series
Power AC Power, DC Power, Loop Power
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