Overview
The MB7854 TankSensor ultrasonic sensor offers 1 mm resolution and a ~1.2Hz read rate, making it suitable for precise distance measurement applications. The sensor operates at 25kHz, effectively measuring distances to objects with a with a minimum range of 300mm and a 16.5-meter (16500mm) maximum range. It is RoHS compliant and provides multiple output options, including analog voltage, serial communication, and an analog envelope for signal processing and troubleshooting.
The sensor functions on a low-power design, requiring an operating voltage between 5.5V to 40V and consuming an average current of only 3.3mA. Designed to be lightweight and integrates seamlessly into various projects. It operates reliably in extreme temperatures, from -40˚C to +65˚C (-40˚F to +149˚F).
Ordering Guide
Please refer the table below and contact our support, if you would like to order other than the base variant.
For more details please refer the OEM website for reference. (Click Here)
Specification
Technical specification for MaxBotix MB7854 Ultrasonic TankSensor.
| Resolution | 1 mm |
|---|---|
| Read Rate | ~1.2Hz |
| Ultrasonic Frequency | 25kHz |
| Compliance | RoHS Compliant |
| Sensor Outputs | Analog Voltage, Serial, Analog Envelope |
| Operating Voltage | 5.5-40V |
| Current Requirement | Low 3.3mA average |
| Weight | Lightweight |
| Integration | Designed for easy integration into projects or products |
| Operational Temperature | -40˚C to +65˚C (-40˚F to +149˚F) |
| Calibration | Real-time automatic calibration (voltage, humidity, ambient noise) |
| Firmware Filtering | Better noise tolerance and clutter rejection |
| Mean Time Between Failure | 20+ Years |
| Weather Resistance | IP67, optional Chemical Resistant F-Option |
| Sensor Connection | Standard electrical 3/4-inch PVC pipe fittings (3/4″ NPT) |
| Horn Opening | Standard 2-inch PVC pipe fittings (2″ NPT) |
| Stability Filter | Rejects occasional anomalous readings |
| Detection | Detects the largest signal return in the field of view |
| Dynamic Range Usage | Selects the next smallest target if no large targets are present |
| Obstruction Handling | Can range large objects behind small obstructions |
| Analog Envelope Output | For easy troubleshooting and signal processing |
| Maximum Range | 1650 cm (649 inches) |
| Detection Zone | Long range, narrow |
Pinout
Pinout for MaxBotix MB7854 Ultrasonic TankSensor.
| Pin | Name | Function | Standard Wire Color |
|---|---|---|---|
| 1 | RX | Serial Receive | White |
| 2 | AE | Real time analog envelope output of the acoustic waveform | Orange |
| 3 | AV | Analog Voltage | Brown |
| 4 | FREERUN/ TRIGGER |
Pull HIGH or let float for Freerun, Pull LOW to prevent ranging. Pull HIGH for atleast 20uS to command a single range reading. | Green |
| 5 | TX | Serial Transmit | Blue |
| 6 | V+ | Power Supply | Red |
| 7 | GND | Ground—Return for the DC power supply. GND (& V+) must be ripple and noise free for best operation. | Black |
Opps
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