Transmissor de pressão diferencial capacitivo de alta precisão
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Differential Pressure Transmitter
AT3051 series Smart Pressure Transmitter with advanced, mature, reliable capacitive pressure sensors has been designed meticulously by combining advanced technology and digital capacitance measurement techniques. High accuracy pressure transmitter's LCD can display many physical parameters such as pressure, temperature, current. Capacitive pressure transmitter can be realized zero adjustment, range settings and other features by key-press operation, and easy to on-site tests.
AT3051 series Smart Pressure Transmitter supports HART protocol and can measure pressure, differential pressure, liquid level, flow, and other industrial parameters. Moreover, capacitive differential pressure transmitter can be widely used in the petroleum, chemicals, electricity, and metallurgical industries, etc.
Signal output | Two-wire 4 ～ 20mA isolated DC signal superimposed HART, digital signal output |
Power supply | DC 12 ～ 45V; during HART communication, the power supply voltage range: 15.5 ～ 45VDC; General working voltage 24VDC. |
Load range | In HART communication, the resistance in the power circuit is ≥250 ohms, and the power supply voltage is ≥15.5 volts |
Display | Intelligent LCD, backlight 5 digits and a half digital display |
Zero and span shift | The lower limit of the measurement range is not lower than the lower limit of the large measurement range, and the upper limit does not exceed the upper limit of the maximum measurement range, that is, the working range does not exceed the sensor the limit value, zero position and range can be set at any corresponding point of 4 ~ 20mA. |
Damping value | Electronic damping adjustable range 0-32 seconds. |
Fault alarm | When the self diagnosis program detects a fault, the analog output is higher than 20.8ma or lower than 3.9ma. |
Temperature and lodging compensation | The computer collects temperature data and sends it to the transmitter for temperature compensation. |
Temperature indication | Indicates the field ambient temperature value of the transmitter. |
Working temperature | Electronic circuit: - 40 ~ + 85 ℃, with LCD: - 30 ~ + 80 ℃ |
Sensitive element (silicone oil filled) | - 40 ~ + 104 ℃ |
Sensitive element (filled with inert oil) | - 18 ~ + 71 ℃ |
Safety protection | And circuit protection design, anti-static impact, surge current, strong overload protection function. |
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High Accuracy Capacitive Differential Pressure Transmitter
High Accuracy Capacitive Differential Pressure Transmitter
Circuito anti-interferência
Compensação de temperatura, menor deriva de temperatura
Tela retroiluminada
Saída 4-20mA + HART
Caixa de alumínio fundido à prova de explosão.
Material das partes molhadas conforme abaixo:
1. SS316L (Tipo Padrão)
2. Hastelloy C
3. PTFE
4. Tântalo
Aplicativo
Amplamente utilizado nas indústrias farmacêutica, de equipamentos médicos, petróleo, gás, química, construção urbana, energia, metalurgia, têxtil, aeroespacial, pesquisa científica, detecção de vazamentos, equipamentos de automação e outros campos.
