Digital contact closure sensor ARF817 series

USBLoRaWANwireless

Overview
The DRY CONTACTS is a plug-and-play IoT sensor for reporting binary 0-1 states and alarms and for controlling relays. It is intended for remote supervision and control of simple ON/OFF (TOR) conditions such as door opening, presence detection, machine start or stop and time-based alerts.

Use cases

• Door opening detection
• Presence or activity detection
• Machine start / equipment control
• Intrusion detection and access control
• Alerting when an event exceeds a configurable duration

Highlights of the IoT sensor

• 4 configurable digital inputs/outputs (I/Os)
• Control an output based on an input state change
• Near-real-time remote output control via LoRaWAN Class C (with external power)
• Measure time spent in a state and count state changes
• Very long autonomy in many LoRaWAN configurations (manufacturer-dependent)
• Local configuration via USB and remote configuration via network
• Data transmission modes: periodic and/or event-triggered
• Compatible with KARE and standard device management tools
• Available connectivity: LoRaWAN (EU863-870 / US902-928 / AU915-928 / AS923-1) and Sigfox (RC1 / RC2 / RC4)

What actions are carried out by the connected sensor?

• Act: control equipment after a state change; remotely activate or restart devices
• Alert: report faults and level alerts; detect intrusions; alert on excessive durations
• Monitor: count status changes and evaluate time spent in a given state

Packaged versions / typical integrations

• Water detection variants (leak cable, spot detector)
• Contact / opening detection versions
• Double-level sensor / level monitoring

Technical documents available
Datasheets, user guides and technical reference manuals are available for regional variants and firmware releases (LoRaWAN and Sigfox).

Technical specifications

• Part numbers (examples): ARF8170ARA (LoRaWAN EU863-870), ARF8170BRA (LoRaWAN US902-928), ARF8170JRA (LoRaWAN AS923), ARF8170IRA (LoRaWAN AU915-928), ARF8171BA (Sigfox RC1), ARF8170DRA (Sigfox RC2), ARF8170KRA (Sigfox RC4)
• Digital I/Os: 4 configurable inputs/outputs
• Radio modes: LoRaWAN Class C (with external power) and Sigfox; periodic and/or event-based transmissions
• Configuration: local via USB, remote via network (transmission modes, periodicity, I/O type)
• Alerts: product error, configuration error, low battery
• Battery life (example conditions: 1 transmission / 4 h, 4 inputs default open, 100 events/day): LoRaWAN SF7/SF12: >15 years; Sigfox RC1 (example variant): ~4.2 years; other Sigfox regional variants comparable in similar conditions
• Dimensions & weight (examples): 132 x 62 x 34 mm – 128 g (IP68 variant); 105 x 50 x 27 mm – 92.74 g (IP67 variant)
• Casing / protection: IP68 (some variants) or IP67 (others; IP68 on request)
• Mounting: DIN-rail, tube, wall mount, collar or flange depending on variant
• Pre-wired: 70 cm cable with 6 connectable wires
• Operating conditions (battery): -25°C to +70°C; 0–85% RH (non-condensing)
• Certifications: EU RED (2014/53/EU); region-specific certifications (e.g. FCC/RSS, AS/NZS)
• Decoding: Supported by CODEC and compatible with Adeunis device management