250T-RB, 350T-RB, 450T-RB Loop, DC, or AC-Power Transmitter
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Product short description:
- Platinum RTD or Copper RTD (resistance temperature sensor) Input
- DC Voltage/Current Output
250T-RB, 350T-RB, 450T-RB Loop, DC, or AC-Power Transmitter 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 series
250T-RB, 350T-RB, 450T-RB: 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
Specs & Catalogs
-
ACC1014: Flat Pack Mounting Kit
- Surface mount for 250T, 260A and 270i series
- Snaptrack mount 250T, 260A and 270i series
-
PS5R: Slim Line Power Supplies
- 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
- Universal Input (85-264V AC / 100-370V DC)
- Lightweight and compact size
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 Type | AC Power, DC Power, Loop Power |
-
Description
250T-RB, 350T-RB, 450T-RB Loop, DC, or AC-Power Transmitter 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 series250T-RB, 350T-RB, 450T-RB: 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
-
Tech Papers
What is the 250T Two-wire RTD Transmitter Failsafe Hook-Up Approach? - 8401068Two-wire Transmitters and Their “Hook-up” to Achieve a Failsafe Configuration The attached analysis references Acromag’s 250T series RTD (100 ohm platinum) This type of hook-up is typically not used because the effects of lead-wire resistance inaccuracies are additive to the RTD measurement. However, when addressing the problem of FAILSAFE, this configuration offers the most predictable... -
Specs & Data Sheets
Specs & Catalogs
-
Accessories
-
ACC1014: Flat Pack Mounting Kit
- Surface mount for 250T, 260A and 270i series
- Snaptrack mount 250T, 260A and 270i series
-
PS5R: Slim Line Power Supplies
- 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
- Universal Input (85-264V AC / 100-370V DC)
- Lightweight and compact size
-
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 Type AC Power, DC Power, Loop Power
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