Designed by Shanghai Zhichuan Electronic Tech Co., Ltd., ZCT330MX‐SWP‐N‐YK is a high‐precision dual‐axis inclinometer using NB‐IoT technology for communication. The device measures tilt along each axis from -30 to +30 degrees with a resolution of 0.001 degrees. The device sends an alarm to the platform via the NB-IoT network when the tilt angle of the monitored object exceeds a certain preset value.
The critical tilt angle can be set over the entire measuring range with an accuracy of 0.001 degree. The default protocol is CTIOT (based on China Telecom platform), while MQTT and COAP (connectable to One net platform) are optional. The model can be widely used in geotechnical and structural health monitoring, municipal administration, telecom, public utility and many other areas.

Features

• Based on NB wireless technology
• Dual-axis, +-30° measuring range
• Accuracy 0.005~0.01°, Alarm accuracy 0.01~0.1°, Resolution 0.001°
• Low consumption, long work time by one battery
• Battery capacity can be customized
• Free monitoring platform is provided
• Auto set work brand, support B5, B8, B3 frequency bands.

Applications

Wireless tilt monitoring of ancient buildings

Tilt monitoring of dam/ bridges

Tilt monitoring of light poles and billboards for Smart Cities

Tilt monitoring of manhole covers

Shelf safety monitoring

Technical parameters（room environment（25℃））

1. work parameter:

Note 1: Lithium ER batteries are not rechargeable, otherwise there is a danger of explosion! When the battery is dead, please replace the battery in time, do not charge it!

Note 2: The annual battery self‐discharge rate is less than 3%, if stocked in this temperature for a year. The self‐discharge rate will be higher than this value if beyond this temperature range.

2. performance parameter （room environment（25℃） ）

Note 1:Resolution refers to the minimum variation that can be detected by the sensor while working in its valid range.

Note 2:Refer to the time interval at which the device periodically uploads data to the server when the alarm is cancelled.

Note 3:Refer to the angular error when the product triggers an alarm. For example, if the alarm angle is 3° and the alarm accuracy is

0.03°, the product XY arbitrary axis angle is less than 2.97°, which will not trigger an alarm. The alarm may be triggered at 2.97°~3.03°,

and the alarm will be triggered when it is greater than 3.03°.

Note 4:Refer to the time when the product continues to tilt beyond the alarm angle to trigger an alarm.

Note 5:At an ambient temperature of 25 ° C, one battery’s capacity is 8500 mAh, the battery loss factor is 0.7, and the heartbeat rate is

24 hours. Average transmission current≈15.5mA,time for single transmission <=30s, T = 8500/(0.21*1+15.5*30/3600/24)/24*0.7 =1151(day)

Product size and measurement directions:

1. Size (if equipped with external antenna, the total length of the external antenna is about 11cm, and the diameter is 10mm)
2. Measurement direction

NB-IoT Tilt Sensor Applicatin Network