RS485 Output 1m Liquid Tank Level Meter 40KHZ Frequency IP67 Water Level Sensor
Product Specifications
| Attribute | Value |
| Product | Ultrasonic Distance Sensor |
| Detection Range | 50mm~1000mm |
| Transducer Frequency | 40KHZ |
| Operating Voltage | 24VDC |
| Limit Working Voltage | 3.6VDC~30VDC |
| IP grade | IP67 |
| Output | RS232/RS485 |
Product Overview
RS232 Output Signal low cost price ultrasonic liquid level meter gauge ultrasonic tank water level sensor.
![Ultrasonic liquid level sensor product image]()
Technical Parameters
General Specifications
| Sensing range | 100...1000 mm |
| Unusable area | 0...100 mm |
| Standard target plate | 100 mm x 100 mm |
| Transducer frequency | approx.220 kHz |
| Response delay | approx. 50 ms |
Indicators/Operating Means
| Indicator | Status |
| LED blue | power-on |
| LED yellow | indication of the switching state flashing: program function object detected |
| LED red | permanently red: Error Red, flashing: program function, object not detected |
Electrical Specifications
| Operating voltage UB | 15...30 V DC, ripple 10 %SS |
| No-load supply current I0 | ≤ 45 mA |
Input
| Input type | 1 TEACH-IN input |
| Operating range | A1: -UB...+1 V, A2: +6 V...+UB |
| Input impedance | > 4.7 kΩ |
| TEACH-IN program pulse | ≥ 1 s |
Output
| Output type | 1 switch output E4, NPN NO/NC, programmable |
| Rated operating current Ie | 200 mA, short-circuit/overload protected |
| Default setting | Switching point A1:70mm, Switching point A2: 800mm |
| Voltage drop | ≤ 2.5 V |
| Repeat accuracy | ≤1 % |
| Switching frequency f | ≤ 13 Hz |
| Range hysteresis H | 2 % of the set operating distance |
| Temperature influence | ±1.5% of full-scale value |
Ambient Conditions
| Ambient temperature | -25...70℃(248...343K) |
| Storage temperature | -40...85℃(233...358K) |
Mechanical Specifications
| Connection | V1 connector(M12×1),4-pin |
| Protection degree | IP67 |
| Material Housing | brass, nickel-plated |
| Transducer | epoxy resin/hollow glass sphere mixture; foam polyurethane, cover PBT |
Dimensions
![Sensor dimensions diagram]()
Electronic Interface and Signals Definition
![Electronic interface diagram]()
![Signal definition diagram]()
Sensor Function Description
Parameter Adjustment
The ultrasonic sensor features a switch output with two teachable switching points. These are set by applying the supply voltage - UB or + UB to the TEACH-IN input. The supply voltage must be applied to the TEACH-IN input for at least 1 s. LEDs indicate whether the sensor has recognised the target during the TEACH-IN procedure. Switching point A1 is taught with - UB, A2 with +UB. Eight different output functions can be set.
Switching point, Setting distance only after power on. The internal clock can assure can't be changed after 5 mins when power on. If want to change the switching point, the user can only setting the request distance after power restart.
TEACH-IN Modes
- TEACH-IN window mode, normally-open function
- TEACH-IN window mode, normally-closed function
- TEACH-IN switching point, normally-open function
- TEACH-IN switching point, normally-closed function
- TEACH-IN large hysteresis interval, normally-open mode
- TEACH-IN large hysteresis interval, normally-closed mode
- TEACH-IN detection of objects presence normally open mode
- TEACH-IN detection of objects presence normally closed mode
Default Setting
A1=blind range, A2=nominal distance
![Default settings diagram]()
LED Displays
| Displays in dependence on operating mode | Red LED | Yellow LED |
| TEACH-IN switching point Object detected No object detected Object uncertain(TEACH-IN invalid) | off flashes On | flashes off off |
| Normal operation | off | Switching state |
| Fault | on | Previous state |
Installation Conditions
If the sensor is installed at the environment temperature fall below 0℃, it should do well on the protective measures. In case of direct mounting of the sensor in a through hole using the steel nuts, it has to be fixed at the middle of the housing thread.
Shipment & Payment
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