250T-FQ, 350T-FQ, 450T-FQ: Frequency Input Loop, DC, or AC-Power Transmitter
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Product short description:
- 0 to 25.6KHz frequency input range
- DC voltage or DC current output
- DIN rail G or T mount
These transmitters accept periodic or pulse waveform signals such as those originating from tachometers, magnetic transducers, and turbine flow meters, and provide a proportional process current or voltage output signal.
Models
250T: Loop-powered transmitter series
350T: DC-powered transmitter series
450T: AC-powered transmitter series
Performance Specifications
Input Ranges:
Frequency: span ranges 0 to 25.6KHz, field-selectable, direct coupled inputs, ±25mV to 150V RMS
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. Includes repeat-ability, hysteresis, terminal point linearity, and adjustment resolution.
Ambient Temperature Effect:
Less than ±0.01% of output span per °F (±0.018% per °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: 115dB at 60Hz, 100 ohm unbalance
Normal Mode: Not Applicable
Response Time:
Time for output to reach 98% of output span depends on jumper-selectable frequency range.
Range 1: 8.0 sec response time (98%)
Range 2: 5.0 sec response time (98%)
Range 3: 0.4 sec response time (98%)
Bandwidth: -3dB at 25,600Hz, 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
- RFI and EMI resistance minimize the effects of environmental noise
- 90% span adjustment enables precise application calibration
- Quartz crystal time-base design improves temperature performance
- Field-selectable time constants optimize output response time and ripple characteristics
- Selectable threshold circuits accept uni-polar/bipolar inputs (0V bipolar, 1.5V unipolar)
- Excitation/pull-up circuit adds flexibility
- 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)
Specs & Catalogs
Additional information
Weight | 16 oz |
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Dimensions | 3 × 1 × 3.2 in |
Part Number | 250T-FQ1-DIN-DT1: CSA approval, Div. 2 hazardous locations, 250T-FQ1-DIN-NCR: no certification/approval required, 350T-FQ1-V0-DIN-NCR: 0 to 10V DC output; no certification/approval required, 350T-FQ1-V5-DIN-NCR: 0 to 5V DC output; no certification/approval required, 350T-FQ1-Y-DIN-NCR: 4 to 20mA DC output; no certification/approval required, 450T-FQ1-Y-1-DIN-NCR: 4 to 20mA DC output; 115V AC power; no certification/approval required |
Product Series | FlatPack Series |
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Description
These transmitters accept periodic or pulse waveform signals such as those originating from tachometers, magnetic transducers, and turbine flow meters, and provide a proportional process current or voltage output signal.
Models
250T: Loop-powered transmitter series
350T: DC-powered transmitter series
450T: AC-powered transmitter seriesPerformance Specifications
Input Ranges:
Frequency: span ranges 0 to 25.6KHz, field-selectable, direct coupled inputs, ±25mV to 150V RMS
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. Includes repeat-ability, hysteresis, terminal point linearity, and adjustment resolution.
Ambient Temperature Effect:
Less than ±0.01% of output span per °F (±0.018% per °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: 115dB at 60Hz, 100 ohm unbalance
Normal Mode: Not Applicable
Response Time:
Time for output to reach 98% of output span depends on jumper-selectable frequency range.
Range 1: 8.0 sec response time (98%)
Range 2: 5.0 sec response time (98%)
Range 3: 0.4 sec response time (98%)
Bandwidth: -3dB at 25,600Hz, 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
- RFI and EMI resistance minimize the effects of environmental noise
- 90% span adjustment enables precise application calibration
- Quartz crystal time-base design improves temperature performance
- Field-selectable time constants optimize output response time and ripple characteristics
- Selectable threshold circuits accept uni-polar/bipolar inputs (0V bipolar, 1.5V unipolar)
- Excitation/pull-up circuit adds flexibility
- 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)
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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-FQ1-DIN-DT1: CSA approval, Div. 2 hazardous locations, 250T-FQ1-DIN-NCR: no certification/approval required, 350T-FQ1-V0-DIN-NCR: 0 to 10V DC output; no certification/approval required, 350T-FQ1-V5-DIN-NCR: 0 to 5V DC output; no certification/approval required, 350T-FQ1-Y-DIN-NCR: 4 to 20mA DC output; no certification/approval required, 450T-FQ1-Y-1-DIN-NCR: 4 to 20mA DC output; 115V AC power; no certification/approval required
Product Series FlatPack Series
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