Products Description
AFLSS-27 wireless submersible liquid level transmitter is a high-precision, low-power wireless liquid level detection instrument. It consists of a submersible liquid level sensor, a signal processing circuit, a communication module and a power module; it is powered by a large-capacity high-energy lithium battery and transmits data via radio frequency. It is easy to install and use, does not require on-site wiring, and eliminates the trouble of wiring bridges for conventional instruments, saving manpower and construction costs. It is especially suitable for application sites where wiring is not suitable and power cannot be supplied. It is an ideal upgrade product for traditional liquid level transmitters.
Product Features
● Battery powered, low power consumption
● Long service life
● Long transmission distance
● Waterproof and dustproof
● RS485, RS232 output
● Stainless steel material
● High precision, strong stability
● Waterproof grade IP65
Product Specification
| Technical Parameters | ||||||||||
| Measuring range | 0~1~200 meters | |||||||||
| Accuracy | Normal accuracy: ±0.5%F.S | |||||||||
| Resolution | 0.01 | |||||||||
| Network Standard | GFSK SWSN; LORA; NB-IOT; | |||||||||
| Data upload interval | 1-255 seconds (GFSK format): 1-255 minutes (LORA): 3-255 minutes (NB-IOT format) | |||||||||
| Data upload mode | Scheduled upload: upload changes (change limit can be set) | |||||||||
| Equipment working environment | -40~85ºC: humidity 0~95%RH without condensation | |||||||||
| Host casing and weight | IP65 waterproof cast aluminum about 1500g | |||||||||
| Main unit size | 115*115*228mm (header part) | |||||||||
| Interface material | 304 stainless steel, 316 stainless steel | |||||||||
| Installation | M33*2 thread, flange, etc. | |||||||||
| Ambient temperature influence | Total influence/28ºC(50°F), ±[0.08% of range +0.015% of range upper limit] | |||||||||
| Stability | ±0.1% of upper range limit/1 year | |||||||||
| Protection grade | IP65 (meter header) | |||||||||
| Battery parameters | Capacity 19000mAh Voltage 3.6V | |||||||||
| Sending interval | 0.25s | 1s | 2s | 5s | 1min | 2min | 10min | 5min | 15min | 60min |
| Battery Life | 1year | 3years | 5years | 10years | 1year | 3years | 8years | 1year | 3years | 8years |
| Wireless Standard | SWSN | SWSN | SWSN | SWSN | LORA | LORA | LORA | NB | NB | NB |
| Test conditions: 20ºC 60%RH laboratory, battery self-discharge rate: <1%/year | ||||||||||
Radio parameters Wireless Standard SWSN LORA NB Transmission distance (line of sight) 1000~2000 meters 5000~10000 meters Unlimited (depends on base station signal coverage) Transmission distance (obstruction reference) 50~250 meters 250~1000 meters Depends on base station signal coverage Carrier frequency band 430~470~510M 860~930M(customized) 430~470~510M 860~930M(customized) B1 B2 B3 B5 B8 B20
Gateway parameters Network support SWSN Wireless Network Modulation method GFSK frequency 430/470MHZ Data Interface RS485 Communication Protocol Modbus RTU Power supply mode 10-28VDC Work Environment Temperature: -20ºC~60ºC: Humidity: <90% Dimensions 75(W)*125(H)*45(D)mm (without antenna) Installation 35mm rail installation
Product Dimensions
Product Features
● Battery powered, low power consumption
● Long service life
● Long transmission distance
● Waterproof and dustproof
● RS485, RS232 output
● Stainless steel material
● High precision, strong stability
● Waterproof grade IP65
Product Dimensions
Product Specification
| Technical Parameters | ||||||||||
| Measuring range | 0~1~200 meters | |||||||||
| Accuracy | Normal accuracy: ±0.5%F.S | |||||||||
| Resolution | 0.01 | |||||||||
| Network Standard | GFSK SWSN; LORA; NB-IOT; | |||||||||
| Data upload interval | 1-255 seconds (GFSK format): 1-255 minutes (LORA): 3-255 minutes (NB-IOT format) | |||||||||
| Data upload mode | Scheduled upload: upload changes (change limit can be set) | |||||||||
| Equipment working environment | -40~85ºC: humidity 0~95%RH without condensation | |||||||||
| Host casing and weight | IP65 waterproof cast aluminum about 1500g | |||||||||
| Main unit size | 115*115*228mm (header part) | |||||||||
| Interface material | 304 stainless steel, 316 stainless steel | |||||||||
| Installation | M33*2 thread, flange, etc. | |||||||||
| Ambient temperature influence | Total influence/28ºC(50°F), ±[0.08% of range +0.015% of range upper limit] | |||||||||
| Stability | ±0.1% of upper range limit/1 year | |||||||||
| Protection grade | IP65 (meter header) | |||||||||
| Battery parameters | Capacity 19000mAh Voltage 3.6V | |||||||||
| Sending interval | 0.25s | 1s | 2s | 5s | 1min | 2min | 10min | 5min | 15min | 60min |
| Battery Life | 1year | 3years | 5years | 10years | 1year | 3years | 8years | 1year | 3years | 8years |
| Wireless Standard | SWSN | SWSN | SWSN | SWSN | LORA | LORA | LORA | NB | NB | NB |
| Test conditions: 20ºC 60%RH laboratory, battery self-discharge rate: <1%/year | ||||||||||
Radio parameters Wireless Standard SWSN LORA NB Transmission distance (line of sight) 1000~2000 meters 5000~10000 meters Unlimited (depends on base station signal coverage) Transmission distance (obstruction reference) 50~250 meters 250~1000 meters Depends on base station signal coverage Carrier frequency band 430~470~510M 860~930M(customized) 430~470~510M 860~930M(customized) B1 B2 B3 B5 B8 B20
Gateway parameters Network support SWSN Wireless Network Modulation method GFSK frequency 430/470MHZ Data Interface RS485 Communication Protocol Modbus RTU Power supply mode 10-28VDC Work Environment Temperature: -20ºC~60ºC: Humidity: <90% Dimensions 75(W)*125(H)*45(D)mm (without antenna) Installation 35mm rail installation
