Keller Company Differential Pressure Sensor Series 33X

High-precision differential pressure sensor with RS485 digital output (±0.05%). Liquid/liquid differential pressure measurement is also possible!

The differential pressure transmitter PD-33X is a high-precision differential pressure sensor capable of measuring liquid/liquid differential pressure. A single silicon diaphragm integrated inside directly measures the pressure difference exerted from both ports. This design allows for the measurement of small pressure differences even under very high line pressures. It achieves an extremely high accuracy of 0.05% full scale (FS) in the temperature range of 10 to 40°C using correction technology based on a mathematical model that provides accurate pressure values. 【Features】 - Accuracy of ±0.05% FS in the temperature range of 10 to 40°C - Capable of measuring liquid/liquid differential pressure - Standard equipped with two outputs: digital RS485 and analog output - Analog output can be range-changed via digital RS485 - Temperature range of -20 to 125°C (optional -40°C available) - High line pressure (up to 60MPa) - Excellent long-term stability 【Technology】 - Piezo-resistive pressure sensor - Correction technology using a mathematical model to provide accurate pressure values

basic information

Pressure range: 0…30 kPa to 0…3 MPa Accuracy: ± 0.05 %FS @ 10–40°C Total accuracy: ± 0.1 %FS @ -10…80 °C Output: RS485, 4–20 mA, 0–10 V, 0–5 V, etc. Temperature range: -20…125 °C *Software CCS30 The license-free software CCS30 is used for configuration and recording measurement values. Measurement - Real-time graphic display - Adjustable measurement and storage intervals - Export function - Connection to bus systems - Up to 100 measurements per second Configuration - Information retrieval (pressure and temperature range, software version, serial number, etc.) - Zero and span recalibration - Analog output rescaling (units, pressure range) - Low-pass filter adjustment - Selection of instrument address and baud rate