HR8000 smart liquid level transmitter is a kind of input liquid level measuring instrument which realizes full-scale digital linear correction digital temperature error compensation in full temperature zone and stores compensation parameters in non-volatile memory adopting multiple security protection mechanisms. It avoids the problem that the product can not be used due to the loss of calibration parameters; the circuit module has power supply monitoring watchdog monitoring function and the input structure is all stainless steel sealed which greatly improves the reliability of the product.
The product performance is stable and reliable and it is widely used in liquid level measurement and control in industries such as hydrology and water conservancy municipal water supply petroleum chemical industry and geological exploration.
All stainless steel sealing structure IP68 protection
High quality silicon piezoresistive measuring element
Digital compensation and adjustment no potentiometer offset due to mechanical vibration
Anti-sand structure design water guide head detachable easy to maintain and clean regularly
Reverse power protection and overvoltage protection
Anti-surge electromagnetic interference
| Main performance indicators | |
| Measurement Accuracy | ＜ ±0.5% F·S |
| Range | 0～10 mH2O…300 mH2O |
| Long-term stability | 0.2%F·S/year （>20米m） |
| 0.1%F·S/year（≤20米m） | |
| Overload capability | 2X F·S |
| Load capacity | (U-12)/0.02（Ω） |
| Temperature characteristics | |
| Compensation temperature | 0～70℃ |
| Operating temperature | -10～80℃ |
| Temperature drift | Zero 0.05%F.S/℃ |
| F.S：0.05%F.S/℃ | |
| Storage temperature | -40～125℃ |
| Electrical characteristics | |
| Supply voltage | DC12～30V （typical 24V） |
| Power protection | Anti-reverse connection over voltage protection |
| output method | two wire system 4～20mA |
| Structural characteristics | |
| Measuring medium | Compatible with stainless steel and fluoro rubber |
| Pressure interface | Stainless steel protective cap or G1/2 M20*1.5 male |
| Housing material | Stainless steel 1Cr18Ni9Ti 316L optional |
| Cable material | Polyurethane PVC optional |
| Environmental characteristics | |
| Protection level | IP68 |
| Explosion-proof grade | ExiaⅡC T6 |
| Insulation | 100MΩ@50V |
| Vibration | 20g 20～5000Hz |
| Shock | 20g 11ms |
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