Autonomous Measuring and Switching Device ROSSMA® IIOT-AMS TILT COUNTER Ex (Tilt Counter)

The ROSSMA IIOT-AMS TILT COUNTER switch registers housing tilt at angles greater than 15 degrees and counts the tilts. The switch operates autonomously and provides wireless data transmission via LoRaWAN or NB-IoT networks.

Purpose

Designed for use with devices and mechanisms where it is necessary to monitor the presence of oscillation (tilt) of moving parts. Contains two sensitive elements for tilt registration.

The switch can be used at industrial facilities, housing and utilities infrastructure, and hard-to-reach locations (manholes, basements). The switch enables installation of measuring instruments in places without power sources and operates in harsh climatic and weather conditions.

Equipment is registered in the register of the Ministry of Industry and Trade of the Russian Federation as equipment manufactured on the territory of the Russian Federation (Conclusion 48859/11 dated June 11, 2021).

Battery Life Calculator

Capabilities

• Continuous counting and accumulation of housing tilts
• Two independent sensors for oscillation registration
• Trigger angle: more than 15 degrees
• Autonomous operation from built-in battery up to 10 years
• Data transmission via LoRaWAN/NB-IoT wireless network
• Built-in temperature sensor
• Battery voltage monitoring
• Configurable data transmission period (from 1 minute)
• ADR support (Adaptive Data Rate)
• Non-volatile memory for data storage

Technical Specifications

General Characteristics

• Number of sensors: 2 (two sensitive elements)
• Trigger angle: more than 15 degrees
• Operating temperature range: -55…+85°C
• Built-in temperature sensor: yes (sent with each transmission)
• Battery voltage measurement: yes (sent with each transmission)
• Antenna type: internal
• Housing dimensions: 75×70×55 mm
• Mounting: directly to sensor, cable ties to support, DIN rail, wall mount

Power Supply

• Voltage: 3.6 V (built-in battery)
• Form factor: D
• Capacity: 1200/6000/9000/14000/19000/20000 mAh (depending on configuration)
• Standard capacity: 14000 mAh (14 A/h)
• Maximum capacity: 20000 mAh (20 A/h)
• Battery life: up to 40,000 data packets ± 10%
• Service life: up to 10 years at once per day transmission

LoRaWAN Characteristics

• Device class: A
• Activation: OTAA/ABP (configurable), ABP – default
• Output power: up to 100 mW (configurable), default 25 mW
• Sensitivity: -138 dBm
• Radio range:
  • up to 5 km in urban areas
  • up to 15 km in rural areas
• Frequency plan: RU868, EU868, IN865, AS923, AU915, KR920, US915, KZ865, custom (based on EU868) — configurable

NB-IoT Characteristics

• Data rate:
  • 25/20 kbps (single-tone) DL/UL
  • 60 kbps (multi-tone)
• Frequency bands: B1/2/3/5/8/12/13/17/18/19/20/25/26/28/66/70

Operating Algorithm

Counting and accumulation of housing tilts is performed continuously. Packet transmission with counted data is performed via wireless network with period from 1 minute.

Recommendation: Do not set intervals less than 1 minute to ensure long autonomous operation.

Operating Modes

With delivery confirmation (Confirmed):

• Switch sends next packet only after receiving confirmation of previous delivery
• If confirmation not received after 3 retries, communication session ends
• Unsent data is saved to memory and transmitted in next session
• Advantage: guaranteed data delivery
• Disadvantage: increased power consumption

Without confirmation (Unconfirmed):

• Switch sends data at specified interval
• No packet delivery verification
• No unsent packets remain in memory
• Advantage: minimum power consumption
• Disadvantage: possible data loss

Transmission Period Configuration

Data transmission period is configured via wireless network commands:

• Default: once per 15 minutes
• Minimum: 1 minute (not recommended for long autonomous operation)
• Maximum: unlimited

Communication time management is performed via LoRaWAN network server and can be adjusted by command.

Indication

The ROSSMA IIOT-AMS TILT COUNTER switch has the following indicators:

• ACT – tilt registration (sensor triggered)
• LoRa – data transmission/reception via LoRaWAN network

The switch has a RESET button for device restart.

Applications

Typical Use Cases:

1. Pump Equipment Monitoring

• Pump vibration and oscillation monitoring
• Detection of abnormal operating modes
• Predictive maintenance

2. Mast and Support Monitoring

• Lighting mast oscillation control
• Power line tower monitoring
• Detection of excessive tilt angles

3. Moving Mechanism Parts Control

• Conveyor operation monitoring
• Suspended structure oscillation control
• Bearing fault detection

4. Perimeter Security System

• Unauthorized access control
• Fence and barrier monitoring
• Intrusion attempt detection

5. Manholes and Underground Structures

• Manhole cover condition control
• Unauthorized access monitoring
• Structure deformation detection

Additional Information

• Device Installation — installation instructions
• Battery Replacement — battery replacement
• Protocols and Commands — control commands and data formats
• ROSSMA Configurator — device configuration
• Troubleshooting — diagnostics and problem solving

Related Pages

Documentation:

• Exchange Protocols — data packet format and control commands
• ROSSMA Configurator — device configuration

Other Devices:

• ESD — tilt, shock, vibration control (similar device)
• PULSE — pulse counter
• Device Catalog — all ROSSMA IIoT-AMS models