▼ Product Overview
GD200AD standard submersible level transmitter adopts a very mature diffused silicon pressure sensor, combined with advanced circuit processing and temperature compensation technology, to convert the liquid level measurement value into a 4~20mA standard DC signal output. The product has strong anti-interference ability, small temperature drift, high stability, and high measurement accuracy and sealing.
▼ Applicable working conditions
Container and storage system liquid level measurement, sewage, flood system monitoring, ship ballast tank water level monitoring, river and lake water level measurement, deep well and groundwater monitoring, factory pool water level monitoring
▼ Working principle
The pressure on the sensor when it is put into the liquid is calculated as P=pgh
P: The pressure on the sensor at the measured point
p: medium density
g: the gravity acceleration of the ground
h: The height of the measured point from the liquid surface
▼ Product Overview
GD200AD standard submersible level transmitter adopts a very mature diffused silicon pressure sensor, combined with advanced circuit processing and temperature compensation technology, to convert the liquid level measurement value into a 4~20mA standard DC signal output. The product has strong anti-interference ability, small temperature drift, high stability, and high measurement accuracy and sealing.
▼ Applicable working conditions
Container and storage system liquid level measurement, sewage, flood system monitoring, ship ballast tank water level monitoring, river and lake water level measurement, deep well and groundwater monitoring, factory pool water level monitoring
▼ Working Principle
The pressure on the sensor when it is put into the liquid is calculated as P=pgh
P: The pressure on the sensor at the measured point
p: medium density
g: the gravity acceleration of the ground
h: The height of the measured point from the liquid surface
| Relative pressure | |||||
| mH20 | Sensor range | 0～2 | 0～3.5 | 0～7 | 0～10 |
| Overload limit | 4 | 7 | 14 | 20 | |
| Sensor range | 0～20 | 0～35 | 0～70 | 0～100 | |
| Overload limit | 30 | 52.5 | 105 | 150 | |
| kPa | Sensor range | 0～20 | 0～35 | 0～70 | 0～100 |
| Overload limit | 40 | 70 | 140 | 200 | |
| Sensor range | 0～200 | 0～350 | 0～700 | 0～1000 | |
| Overload limit | 300 | 525 | 1050 | 1500 | |
| bar | Sensor range | 0～0.2 | 0～0.35 | 0～0.7 | 0～1 |
| Overload limit | 0.4 | 0.7 | 1.4 | 2 | |
| Sensor range | 0～2 | 0～3.5 | 0～7 | 0～10 | |
| Overload limit | 3 | 5.25 | 10.5 | 15 | |
| Performance Indicators |
|
| Accuracy level | Level 0.2 |
| Temperature drift | ≤±0.2%FS/10℃ |
| Temperature compensation | 0～50℃ |
| Long-term stability | ≤±0.1%/URL(12 months)(within temperature compensation range) |
| Response time | 0.25s |
| Power supply impact | ≤±0.005%/URL/V |
| Overload capacity | 150%～200% full scale |
| Applicable working conditions | |
| Operating temperature | -20～80℃ |
| Ambient/Storage Temperature | -40～85℃ |
| Operating/Storage Humidity | ≤95%RH |
| Transmitter module | |
| Power supply | 10～32V DC (4～20mA, HART protocol digital communication), 6～30V DC (Modbus RS485) |
| Output signal | 4～20mA, 4～20mA+HART, ModbusRS485 |
| Load range | Current type load resistance RL≤(Us-Umin)/0.026, for Umin, please refer to the minimum supply voltage |
| Instrument diagnostic function | When the instrument fails, the output alarm current |
| Display variables | Percentage, output current, primary variable (Pa, kPa, MPa, mbar, bar, psi, mmH2O, etc.) |
| Material Specifications | |
| Probe material | SUS304 (default), SUS316 |
| Junction box protection level | IP65 (default), IP67 |
| Probe protection level | IP68 |
| Sensor diaphragm material | SUS316L, Hastelloy C, Tantalum |
| Probe seals | Nitrile rubber NBR (default), fluororubber FKM, EPDM |
| Cable sheath material | Polyethylene rubber and plastic PVC, polyurethane PU, polytetrafluoroethylene PTFE |
| Flange thickness | The default thickness is 14mm (including the sealing surface), and other dimensions refer to the corresponding technical standards |
| Note: Please contact the manufacturer if you have special output signal requirements. | |
Probe dimensions
| Selection Table | ||
| project | Specification code | illustrate |
| Product Model | EB200AD- | |
| Sensor range | 1 | 0～1mH20 |
| 2 | 0～2mH20 | |
| 3 | 0～3.5mH20 | |
| 4 | 0～7mH20 | |
| 5 | 0～1 0mH20 | |
| 6 | 0～20mH20 | |
| 7 | 0～35mH20 | |
| 8 | 0～70mH20 | |
| 9 | 0～100mH20 | |
| Output signal | E | 4～20mA |
| S | 4～20mA, HART protocol digital communication | |
| M | Modbus RS48 | |
| Probe material | 1 | 304 |
| 2 | 316L | |
| Material of wetted diaphragm | 2 | 316L |
| 3 | Hastelloy C-276 | |
| 5 | Clamp | |
| Installation | F2 | Flange installation DN50 |
| F3 | Flange installation DN80 | |
| L1 | Thread installation M36*2 external thread | |
| XJ | Cable clamp installation | |
| ZJ | Bracket installation | |
| TO | Special specifications | |
| Cable length | L | Cable length 1m~200m (for example: 5m cable length is represented as L005) |
| Additional Options | ||
| project | Code | illustrate |
| On-site display | D1 | On-site display head (electrical interface: M20*1.5) |
| D2 | Intrinsically safe ExiaⅡCT6 | |
| Counterweight | PZ | With meter head (electrical interface: M20*1.5) |
| Mounting material | A | SUS316L |
| B | PP | |
| C | SUS316+PVC | |
| Special cable material | PT | PTFE polytetrafluoroethylene |
| PU | PU Polyurethane | |
| Protection tube | K4 | SUS304 |
| K6 | SUS316 | |
| Probe Type | B | Type B |
Note:
1. Select the default probe type A.
2. The user must consider the corrosiveness of the material of the liquid-contacting part and the medium. Inappropriate materials may cause unexpected corrosive medium leakage, causing serious damage to the human body and factory equipment. When selecting the model, you must pay attention to the following: If the medium is highly corrosive, such as acid, sulfuric acid, H2S, sodium hypochlorite, etc., or high-temperature steam above 150°C, you must comply with the current design requirements.
3. If the above parameters do not meet your requirements, please contact the manufacturer
