Digital differential pressure sensor digital differential pressure transmitter

Chip:

Imported differential pressure chip, the maximum differential pressure range is 25MPa;

The maximum static pressure is 70MPa;

3-5 times withstand voltage, suitable for measuring differential pressure of liquid, gas and other media;

Zero, full, temperature compensation, linear compensation;

High impedance, high precision and high stability;

More than 1 million times of service life;


Signal processing and output:
24 bit ADC sampling and processing chip;
DSP digital signal conditioning algorithm;
Multipoint linear temperature calibration;
Voltage and current overload protection;
Standard industrial signal output: 4-20mA (two-wire system), 0-20mA (three wire system), 0-5vdc, 0-10vdc, 0.5-4.5vdc (three wire system);

Digital communication signal output: rs485-rtu, ultra-low power rs485-rtu
Advanced 32 bit microprocessor and 24 bit ADC are adopted
The transmission protocol is MODBUS-RTU
Support baud rate: 1200 ~ 57600bps, check bits: none, odd, even
Support the user's secondary calibration, reset, anti reset, restore factory operations
Support 11 kinds of units switching, support floating point, integer, percentage, formatted output
The acquisition interval of 0 ~ 43200 seconds (12 hours) can be set, which can not only meet the needs of high-speed acquisition, but also trigger acquisition once to minimize power consumption

Digital communication signal output: CAN2.0B
Measurement rate: 10... 1000Hz can be set, the default is 50 Hz

CANopen output built-in complete CANopen protocol stack, in line with ds301, ds404 specifications, support LSS services, support bootloader online upgrade;
Support baud rate (kbps) 20 / 50 / 100 / 125 / 250 (default) / 500 / 800 / 1000; support features of NMT / heartbeat / SDO / PDO / LSS / bootloader; CANopen protocol stack can be customized according to user requirements;

J1939 output has built-in J1939 protocol stack. PGN, SPN and name can be configured freely, and bootloader online upgrade is supported;
Support baud rate (kbps) 20 / 50 / 100 / 125 / 250 (default) / 500 / 800 / 1000; support free configuration of features such as PGN, SPN and name
The J1939 protocol stack can be customized according to the user's requirements;

Structure:
T-shaped structure, easy to install, m20x1.5/g1/2 process connection;
Small structure, standard din43650 (hesman) electrical connection line;
Supporting four / five core shielded cable;

Application:
Differential pressure measurement and monitoring of liquid, gas and other media;
Differential pressure measurement and monitoring of urban pipe network and equipment hydraulic system;
Differential pressure measurement and monitoring before and after filter screen, filter, etc;

Measuring medium: liquid, gas and steam
Pressure type: differential pressure
Range:
0～100、200、300、500、600（KPa）；
0～1、2、3、5、10、20（MPa）；
-100KPa～-10KPa～0～100（KPa）；
±10KPa～±100KPa；
Static pressure (pressure): 3 times of the range
Comprehensive accuracy: ±0.25% FS; ±0.5% FS; ±1% FS
Nonlinear: ≤0.5% FS
Repeatability: ≤0.25% FS
Output signal:
Current mode: 4 ～ 20mA two wire system; 4 ～ 20mA / 0-20mA three wire system
Four digit display, display range: - 1999 - 9999
Sampling rate of pressure gauge: 10 times / S
Supply voltage:24VDC(9～30VDC)
Service life: ≥ 1million times
Insulation impedance: ≥ 1000 m Ω/100VDC
Load impedance: current output: ≤ 800 Ω; voltage output:≥50KΩ
Medium temperature: -20～70 ℃/
Ambient temperature: -20～70 ℃
Compensation temperature: 0～60 ℃
Response time: ≤3MS
Overload pressure: 150% FS
Failure pressure: 3 times of range (range less than 100KPA); 2 times of range (range more than 100KPA)
Electrical connection: Standard din43650 (hesman) electrical connection outgoing line
Protection grade: IP65 / IP68
Connecting cable: four core shielded cable, standard length: 3M
Connection material: 304/316
Process connection: m20x1.5 (general), G1/2, etc Specification can be made by users