| Product Model ： | ZCT-IOTH-WN-2x-JLA8 |
| Measuring Range ： | ±90 ° |
| Output ： | NB-IOT |
| Power： | Voltage(8～30V) |
| Accuracy ： | 0.001°-0.005° |
| Application ： | Internet of Things |
ZCT-IOTH-WN-2x-JLA8 is Zhichuan’s latest NB-IoT tiltmeter, upgraded in 2024 from ZCT330M-LWP-ANx-YKC0. Like -YKC0, -JLA8 is a dual-axial tiltmeter of higher accuracy, suitable for structural health monitoring applications. With the latest flagship Quectel NB-IoT module inside, the version supports both MQTT and LwM2M protocol nicely. To ensure data security and to improve user-friendliness, a memory card and an external power button are added.
Note:
ZCT-IOTH-WN-2H-JLA8: for HORIZONTAL mounting
ZCT-IOTH-WN-2V-JLA8: for VERTICAL mounting
Working parameters
| Item | Conditions | Min | Typical | Max | Unit |
| Power Source | D-size
ER34615 Lithium Thionyl Chloride battery (1 |
2.7 |
3.6 |
3.8 |
VDC |
| Quiescent
Current (Standby) |
Alarm enabled | 210 | 220 |
uA |
|
| Alarm cancelled | 5 | 10 | |||
| Peak Current | 300 | 1,000 | mA | ||
| Working
Temperature |
-40 |
+85 |
°C |
||
|
Stocking Temperature(2 |
Without battery | -40 | +85 | °C | |
| With battery (recommended) |
+25 |
+30 |
°C |
Performance parameters
| Item | Testing
Conditions |
Min | Typical | Max | Unit | |
| Measurement Range | two axis | -30 | 30 | ° | ||
| Resolution(1 | 0.001 | ° | ||||
|
Accuracy |
-15 ~ +15°C | ±0.005 | ° | |||
|
-30 ~ +30°C |
±0.01
or ±0.0167 |
°
% F.S. |
||||
| Zero Point Temperature Drift | -40°C ~ +85°C | ±0.001 | 。/°C | |||
| ±0.065 | 。 | |||||
| Zero Point Deviation | ±0.05 | 。 | ||||
| Heartbeat Interval(2 | 60 | 86,400 (default) | 131,071 | second | ||
| Alarm Angle | same for X and Y axis | 3 | 。 | |||
|
Alarm Accuracy(3 |
-5° ~ +5° | ±0.01 | ±0.03 | 。 | ||
| -15° ~ +15° | ±0.03 | ±0.1 | 。 | |||
| -30° ~ +30° | ±0.1 | ±0.3 | 。 | |||
| Alarm Delay Time(4 | 0.3 | 2 (default) | 25.5 | second | ||
| Battery Working Time(5 | 6 | year | ||||
| IP level | housed | IP67 | ||||
Note 1: Resolution refers to the minimum variation that can be detected by the sensor while working in its valid range.
Note 2: Heartbeat interval refers to the time interval at which the device periodically uploads data to the,server.
Note 3: Alarm accuracy refers to the angular error when the product triggers an alarm. Suppose the alarm angle is 3 degree and the alarm accuracy is 0.03 degree, if X and Y axis angle are smaller than
2.97 degree, alarm will not be triggered, if X or Y axis angle is between 2.97 and 3.03 degree, alarm may or may not be triggered, if X or Y axis angle is larger than 3.03 degree, the alarm will be triggered for sure.
Note 4: Alarm delay time refers to the time when the device continues to tilt beyond the alarm angle to trigger an alarm .
Note 5: Estimation is based on such conditions: at an ambient temperature of 25°C, the capacity of the battery is 19,000mAh, the battery loss factor is 0.7, and the heartbeat rate is 24 hours . Average current for transmitting data ≈ 31mA, time for single transmission ≈ 22s, battery working time = 19000*0.7/24/365/ ((0.22*(24-22/3600)+31*22/3600)/24) ≈ 6 years .
