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PT500-602T

Model:PT500-602T
Imported ceramic piezoresistive core body;
Principle of hydrostatic level / water level measurement;
The shell material is made of corrosion-resistant imported polytetrafluoroethylene (Teflon);
IP68 sealed waterproof electrical outlet;
High precision, stable, digital calibration adjustment, amplification integrated circuit;
The output type is 4-20mA / 0-20mA / 0-5V / 10V / rs485-rtu and low-power RS485
Special Teflon liquid level cable

Common keywords:
Corrosion resistant liquid level transmitter corrosion resistant liquid level sensor
Anti corrosion liquid level transmitter anti corrosion liquid level sensor

Product parameters
Specification parameter
Ordering considerations
Precautions for use
Common problem
Proposal

Chip:
Imported ceramic piezoresistive core body;
The selected mounting process has zero point, full range compensation and temperature compensation;
Principle of hydrostatic level / water level measurement;
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:
The shell material is made of corrosion-resistant imported polytetrafluoroethylene (Teflon);
IP68 sealed waterproof electrical outlet;
Special Teflon liquid level cable
Application:
Water level measurement and monitoring of seawater and brine;
Liquid level measurement and monitoring of pH value 3-11;
Liquid level measurement and monitoring of chemical and other corrosive liquids;

Application fields:

Water level measurement and monitoring of tunnel and Bridge
Water level measurement and monitoring of fire wells and pools
Monitoring of urban waterlogging water level
Water tank
Reservoir dam
Groundwater level

Product family:

Technical parameters
Measuring medium: corrosive liquid
Pressure form: gauge pressure (static pressure)
Range: 0 ～ 5mh2o ～ 100mh2o;
The minimum range is 5 m water level height, and the maximum range is 100 m water level height
Comprehensive accuracy: ± 0.25% FS; ± 0.5% FS; ± 1% FS
Nonlinearity: ≤ 0.25% FS
Repeatability: ≤ 0.1% FS
Output signal: current type:
4-20mA two-wire system; 4-20mA / 0-20mA three-wire system
Voltage type: 0 ~ 5VDC, 0 ~ 10VDC, 0.5 ~ 4.5vdc three wire system
Digital type: rs485-rtu, low power rs485-rtu
Temperature and pressure integration: 4 ~ 20mA two-wire system + Pt100
Digital temperature and voltage: rs485-rtu / low power rs485-rtu + Pt100
CAN2.0B (supports CANopen, J1939 Protocol)
Power supply voltage:
24 VDC (9 ~ 30 VDC) universal type
3.1 ~ 6.1vdc (low power rs485-rtu)
5VDC (0.5 ～ 4.5vdc output type)
Insulation impedance: ≥ 1000 m Ω / 100VDC
Load impedance: current output: ≤ 800 Ω; voltage output: ≥ 50K Ω
Digital output address: 1 ~ 128
RS485 baud rate: 9600 (factory default) 1200 ~ 115200 (BPS)
CAN2.0B has built-in CANopen protocol stack or built-in J1939 protocol stack
Can baud rate: 20 / 50 / 100 / 125 / 250 (default) / 500 / 800 / 1000 (kbps)
Medium / ambient temperature: - 20 ～ 80 ℃
Compensation temperature: 0 ～ 70 ℃
Overload pressure: 150% FS
Stability: ≤± 0.15% FS / year
Vibration effect: ≤± 0.15% FS / year (mechanical vibration frequency 20Hz ~ 1000Hz)
Failure pressure: 3 times of measuring range (less than 350Mpa); 2 times of measuring range (measuring range greater than 400MPa)
Electrical connection: Waterproof tight wire nut directly leads out, can be matched with explosion-proof electrical connection
Protection grade: IP68
Connecting cable: special Teflon liquid level cable
Connecting material: imported polytetrafluoroethylene (Teflon)

Precautions for ordering PT500-602T level transmitter

1. Product range selection:
In order to achieve the best effect of product accuracy, service life, stability and other functions, the range selection of the product
Select the following formula for calculation:
Range = x (1.2-1.5) times of the maximum system pressure;
The actual measuring pressure range of the product should be 15% - 80% of the range;

2. Product power supply and output:
The selection of power supply range is determined according to the output specifications of the product:
Conventional 4-20mA / 0-20mA, 0-5V / 10V output, DC 12-30vdc power supply;
General rs485-rtu output, DC 12-30vdc power supply;
0.5-4.5vdc output, DC 5VDC;
Low power rs485-rtu output, DC 3.1-6.1vdc;
When output rs485-rtu, please understand the communication protocol first;

3. The user should understand the measurement medium characteristics of the product:
Medium specification, medium temperature, medium purity (whether containing impurities or particles, etc.);

4. Users should understand the installation environment and installation method of the product:
Indoor or outdoor installation;
Ambient temperature;
Required sealing level;
Vibration range of equipment;
Whether the installation space meets the overall dimension of the product;

Precautions for PT500-602T level transmitter
Please refer to the product certificate and instructions for power supply. Different output modes and different power supply voltages are required;
It is strictly forbidden to use hard objects (such as: screwdrivers, fingers, nails, etc.) to make the pressure measurement output of the pressure core body;
The power supply and signal lines shall be correctly connected according to the product specifications;
When the product is installed and used, protect the cable air duct, which is strictly prohibited from water entering or blocking;
It is strictly prohibited that the medium temperature, pressure range and excitation voltage of the measured system exceed the rated range of the transmitter;
Pay attention to protect the outgoing cable of transmitter. When the span is too large, it is recommended to use metal tube for protection or overhead;
When measuring the water level of wells, groundwater, rivers and reservoirs, pay attention to the input position of sensors to avoid the height of sludge;
For a large range of water level products, when the cable length is more than 30 meters, the liquid level transformer can not be directly pulled by the cable;
When measuring the water level with rapid water flow, the liquid level transmitter is installed along with the limit pipe to ensure that the product does not float;
In order to reduce the information interference and ensure the measurement accuracy, the installation position of the transmitter should avoid the equipment with large magnetic field change and radiation as far as possible, such as motor, submersible pump, high-voltage cable, etc;
Field installation transmitter, add lightning rod and other protective devices;

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