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ACA816T/ACA826T

Product catalog summary

General Description: The ACA816T/ACA826T inclinometer by RION Technology is designed for precise level measurement and leveling. It features a resolution of 0.0005° and supports digital signal transmission through interfaces such as RS232, RS485, RS422, and TTL. The sensor is easy to install and resistant to electromagnetic interference, shock, and vibration.

Features: The sensor offers single or dual-axis measurement with a range of ±1° to ±30°. It operates with a voltage input of 9-36V and a temperature range of -40 to +85°C. It is IP67 rated for protection and provides high anti-vibration performance.

Applications: Suitable for automatic leveling of engineering vehicles, bridge and dam detection, laser equipment positioning, and medical facilities angle control.

Specifications: The sensor offers various measurement ranges and resolutions, with a maximum accuracy of 0.01° at room temperature. It has a response frequency of 20Hz and supports output rates from 5Hz to 50Hz. It is shockproof with a long-term stability of 0.02°.

Ordering Information: Customization is available based on measurement range, axis, output interface, installation type, and protocol.

Working Principle: Utilizes a capacitive micro-pendulum principle to measure inclination based on Earth's gravity.

Electrical Connection: Provides detailed wiring information for RS232, RS485, and RS422 interfaces.

Installation Notes: Proper installation is crucial to avoid measurement errors. The sensor must be mounted parallel to the measured surface.

Software and Protocol: The host computer software allows for serial port settings, device configuration, real-time data monitoring, and data saving. Uses RION and MODBUS protocols for data communication, with specific command formats and response structures.

Broadcast Address Usage:

Set all tilt sensors on the bus to a specific address.
Set sensors to relative/absolute zero.
Test sensors on the bus by sending a query angle command.

Command Reliability:

Commands for setting address, absolute/relative zero, and baud rate must be sent twice consecutively for effectiveness.

Data Frame Structure:

Data length: 4 words.
X and Y axis data are extracted from specific bytes, with angles expressed in points.
Temperature data is located in the 9th and 10th bytes.

Angle Conversion Example:

Convert hexadecimal data to decimal, subtract offset, and multiply by 0.0001 to get the angle.

Command Examples:

Set Relative/Absolute Zero: Use Modbus function code 06H. Commands must be sent twice.
Set Sensor Address: Default address is 1. Use function code 06H. Commands must be sent twice.
Set Sensor Baud Rate: Default is 9600bps. Use function code 06H. Commands must be sent twice.
Read Sensor Address Code: Use function code 42H.
Set Communication Character Format: Default is even parity. Use function code 06H. Valid after power cycle.

Catalog excerpts

ACA816T/ACA826T MODBUS TILT SENSOR PATENT NO：ZL 201830752872.2 CE certification: AT011611743E FCC certification: AT011611744E RoSH certification: 18300RC20410801 MODBUS TILT SENSOR Technical Manual

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ACA816T/ACA826T MODBUS TILT SENSOR RION PRODUCT QUALIFICATION ○ CE certification: AT011611743E ○ FCC certification: AT011611744E ○ RoHS certification: 18300RC20410801 ○ Revision time:2024-08-06 Note: Product functions, parameters, appearance, etc. will be adjusted as the technology upgrades. Please contact our pre-sales business to confirm when purchasing. Disclaimer This product is developed exclusively for commercial applications and is prohibited from being used for illegal purposes, such as military activities, research related to nuclear, chemical, or biological weapons, or any other actions...

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ACA816T/ACA826T MODBUS TILT SENSOR ▶ GENERAL DESCRIPTION ACA816T / ACA826T is a full-temperature compensated high-precision single / dual-axis MODBUS output inclinometer professionally developed by RION Technology for high-precision level measurement and leveling. High-resolution 0.0005 ° , it can completely replace the traditional inclinometer. Digital signal transmission, supporting professional computer software, accurate data measurement and recording, output interface RS232, RS485, RS422, TTL optional. The characteristics of non-contact installation make the ACA816T / ACA826T have super...

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ACA816T/ACA826T MODBUS TILT SENSOR ▶ SPECIFICATIONS ACA816T/826T Measure range Measure axis Resolution Measure accuracy MAXE RMSE Room temp. Room temp. Long term stability Zero temp coefficient Sensitivity temp coefficient Response frequency Output rate Ouput signal Insulation Resistance 100g@11ms、3 axis direction (half sinusoid) Protection grade Cables IP67 Standard 2M length、wearproof、wide temperature、 Shielded cables 5P*0.5mm2 air-plug connector KEY WORDS Resolution : Refers to the sensor in measuring range to detect and identify the smallest changed value. Measure accuracy : Refers to in...

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ACA816T/ACA826T MODBUS TILT SENSOR Output Interface Measure range Measure axis 68: RION 68 protocol MB: MODBUS Protocol V: Vertical Installation 1: Single Axis 2: Dual Axis E.g:ACA826T-01-232-68:Dual-axis/Horizontal/±01°Measure range/RS232 output/RION 68 protocol. ▶ MECHANICAL PARAMETERS ○ Connectors：Aviation connector (1m direct leadwire can be customized) ○ Protection glass：IP67(air plug connector) ○ Enclosure material ：Aluminum Oxide ○ Installation ：4*M4 screws 2*3mm plug position(optional) ▶ WORKING PRINCIPLE Adopt imported core control unit and apply the principle of capacitive micro-pendulum....

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ACA816T/ACA826T MODBUS TILT SENSOR 2：RS485 Cable Wire Information Power supply GRAY FACTORY Using only 3：RS422 CABLE WIRE INFORMATION 1）Connector With Cable Information Power negative

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ACA816T/ACA826T MODBUS TILT SENSOR 2）Direct Leading Cable Information RED DC9~36V Power supply Positive ▶ MEASURING DIRECTIONS The installation must guarantee the product bottom is parallel to measured face，and reduce the influence of dynamic and acceleration to the sensor. This product can be installed horizontally or mounted vertically (mounted vertically selection must confirm before production ), for installation please refer to the following scheme.

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ACA816T/ACA826T MODBUS TILT SENSOR Shell size: L92×W48×H36mm Installation size: L82×W38×H6mm Mounting screws: 4 M4 screws/2 M3 positioning pins ▶ PRODUCTION INSTALLATION NOTES Please follow the correct way to install tilt sensor, incorrect installation can cause measurement errors, with particular attention to the "surface", "line": 1）The Sensor mounting surface and the measured surface must be fixed closely, stability,if mounting surface uneven likely to cause the sensor to measure the angle error. 2) The sensor axis and the measured axis must be parallel ,the two axes do not produce the angle...

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ACA816T/ACA826T MODBUS TILT SENSOR ▶ RION INCLINOMETER_MODBUS HOST COMPUTER SOFTWARE The overall view of the host computer interface (Figure 1-1) is as follows, Mainly consists of Serial port / Device Setting / System setting / Save options / Real time curve / Real time data / Original data. Move the mouse to the prompt message in the column “?” For the description of each column. Please set the correct range and resolution before use. Introduce one by one below. 1. SERIAL PORT SETTING：Select the corresponding port. Select the current verification mode (N, O, E, N by default). Select the current...

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ACA816T/ACA826T MODBUS TILT SENSOR 4. SAVE THE FILE：Edit box shows file path. Click the Browse button to select the storage path. After selecting it, click Save to start saving the data. Open the directory to find the CSV file with the product name + DATA+ date.The file contents are XY axis data, temperature and time.。 5. REAL TIME CURVE：As shown in the following figure (Figure 1-7), the real-time data waveform is displayed, with the horizontal axis as time and the vertical axis as data value.Click on the lower right corner of the drawing frame to zoom in and out.Right click to move the drawing...

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68 is prefix of data packets, fixed. 10 is data lenght, fixed. 00 is address code, revisable. 84 is command code, fixed. 00 00 20 08 the four red bytes are the X axis returned angle value in compact BCD code. the high order 0 of first byte is sign bit(0: positive; 1: negative), 00 0 are three digit integer value, 20 08 are four decimal digit. other axis data analysis method is similar. the angle is +000.2008 deg by analizing. 10 00 25 28 the four blue bytes are Y axis returned angle value, analysis method is similar to X axis 10 35 00 80 the four green bytes are internal temperature value, analysis...

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ACA816T/ACA826T MODBUS TILT SENSOR 0X0 C Setting sensor output mode Response rule:Need upper computer send reading angle command,the sensor answer the corresponding angle. Automatic output rule: The sensor with power on can Automatically output X angle , The output frequency base on what be setted,if you need output High frequency,please set baud rate as 115200 (Power off with save function) E.g: 68 05 00 0C 00 11 The sensor answer reply command E.g: 68 05 00 8C 00 91 Setting module address command The sensor default address is 00, 1, such as a plurality of sensor to be connected with a bus cable,...

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