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绝缘变送器
mA输入,绝缘Vdc输出或Vdc输入,带绝缘mA输出

PXTX-4900

High Accuracy Isolated Transmitters, Isolates mA, dc and Vdc Signal Inputs | PXTX-4900

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5年保修
  • Voltage Input with Current Output or Current Input with Voltage Output
  • 1500 Volts RMS of CMV Isolation
  • Factory Calibrated for Accuracy of ±0.1%
  • Operates from 115 Vac 50/60 Hz or 230 Vac
  • Rugged Epoxy Encapsulated Design
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产品描述

The OMEGA™ PXTX-4900 and PXTX-4901 transmitters isolate a 4-20 mA current loop from the 0 to +10 Vdc signal and the power line. These units are ideal for eliminating ground loops and common mode signals. In the PXTX-4901, which converts 4-20 mA to 0 to 10 Vdc, the input resistance is less than 50 Ohms, generating less than 1 Volt drop at 20 mA loop current. The PXTX-4900 converts a 0 to 10 Vdc to a 4-20 mA output signal. For both models, the 400 Hz frequency response provides a settling time of less than 0.003 seconds to 0.1%, which prevents signal degradation. Both models are completely encapsu-lated for use in rugged environments. They are similarly protected against shock and vibration for years of reliable and accurate operation. All connections are easily made to conveniently located barrier strips.

SPECIFICATIONS
PXTX-4900
    Input:
0 to 10 Vdc
    Output: 4 to 20 mA
    Loop Resistance: Up to 1000
    Loop Compliance: 20 V maximum
PXTX-4901
    Input:
4 to 20 mA
    Output: 0 to 10 Vdc
    Load Resistance: 2000 Ω minimum
    Load Capacitance: 0.01 µF
Isolation: 1500 Vrms 50/60 Hz Capacitance Line to Input or Output: 30 pF
Input to Output: 80 pF
Accuracy: ±0.1% of span maximum
Nonlinearity: ±0.05% of span Temperature Stability 0 to 55°C:
    Span: ±35 ppm/°C
    Zero: ±50 ppm/°C of span
Input Resistance:
    PXTX-4900: >10 MΩ
    PXTX-4901: 47.6 ±0.3% Ω
Input Current Maximum:
    PXTX-4900: 7 mA
    PXTX-4901: 70 mA
Response: 3 dB bandwidth 400 Hz typical
Rise Time: 10 to 90% 0.9 ms typical
Settling Time: To 0.1% < than 3 ms
Noise: 0.1 Hz to 400 Hz <0.01% rms of span
CCMR: 100 dB
Power Requirements: 105 to 125 Vac 50/60 Hz, 3.2 VA (230 Vac optional)
Operating Temp: -20 to 70°C (-4 to 158°F)
Storage Temp: -20 to 85°C (-4 to 184°F)
Size: 95.25 L x 50.80 W x 72.90 mm H (3.75 x 2 x 2.87")
Weight: 540 g (19 oz)
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产品描述
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PXTX-4900
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货期: 
 
 
High accuracy isolated transmitter with 0 to 10 Vdc input and 4 to 20 mA output (115 Vac)
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PXTX-4901
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货期: 
 
 
High accuracy isolated transmitter with 4 to 20 mA input and 10 Vdc output (115 vac)
230 VAC Powered Models
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PXTX-4900-230
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货期: 
 
 
High accuracy isolated transmitter with 0 to 10 Vdc input and 4 to 20 mA output (230 Vac)
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PXTX-4901-230
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货期: 
 
 
High accuracy isolated transmitter with 4 to 20 mA input and 10 Vdc output (230 vac)
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