RSTAR Affinity Data Logger

Overview

• The RSTAR Affinity data logger is designed to connect a variety of field analog and digital sensors to the RSTAR Affinity web-based dashboard. Each data logger can be configured to support up to five instruments of varying types.
• Instrument and data logger configuration is mediated through secure and authenticated Bluetooth (BLE).
• Instrument readings are communicated in real-time by low-power wide area network (LPWAN) through an RSTAR Affinity gateway. LPWAN protocols supported include LoRaWAN for long-range outdoor applications (up to 15 km).
• Standalone data logging is supported by the synching of instrument data by local authenticated download in the RSTAR Affinity Field app.

ITEM SPECIFICATION

Dimensions : 159 mm (L) x 120 mm (W) x 87 mm (H) (enclosure only)
163 mm (L) x 185 mm (W) X 87 mm (H) (enclosure + wall mounting)    
Total Mass : 500 g to 550 g
Housing Material : PBT
Ingress Protection Marking : IP67 rated
Mounting Options  : Wall, pole, mounting kit available
Antenna Options : External: +3 dBi and +5.8 dBi (N type connector)    

 
General Specifications

ITEM     SPECIFICATION

Temperature Operating Range  From :  -40°C to 60°C
Lifespan : 10-year service life

BLE (Bluetooth Low Energy) Radio Specifications

Bluetooth : BT 5.0 single mode
Frequency : 2.402 – 2.480 GHz
Raw Data Rates :125 kbps, 500 kbps, 1 Mbps, 2 Mbps
Maximum Transmit Power : +8 dBm
Low Power Listen Mode : Continuous

 
LORA (Long Range) Radio Specifications

Operating Regions LoRaWAN US915
LoRaWAN EU868
LoRaWAN EU433
LoRaWAN AS923-1/2/3/4
LoRaWAN AU915Refer to RST for the best frequency for your region.
Protocols : LoRaWAN® 1.0.1
Range : Up to 14 km (at 900 MHz) in open country, depending on frequency and antenna

 
Power Specifications

Battery voltage : 3.6V
Number of Cells : 3 primary battery cells
Battery Cell Size : D
Recommended Battery Cell : Saft LSH20
Battery Nominal Capacity : 13.0 Ah @ 20°C per cell
Battery Life Expectancy (Hourly readings) : 1 x VW Piezometer @ 20°C = ~10 yrs
100 Segment ShapeArray @ @ 20°C = ~3 yrs

 
RS-485 Interface Specifications

Part ID : IIM-RS-485

Contact RST for full sensor list compatibility
Supply Power : 12 VDC up to 300 mA
Protocols Supported : RS485
Serial Data Rate : 9600 to 115200 Baud configurable through RSTAR Affinity digital suite.
Serial Port : Half-duplex
Protection : 1500 VDC isolation on the 12 V
3000 VDC isolation on TTL signals
Isolation ICs are EN62368-1 certified

 
Vibrating Wire Specifications
Vibrating Wire + Vibrating wire pair part ID     IIM-VW-VW
Vibrating Wire + Thermistor pair part ID     IIM-VW-TH
Excitation Voltage     5 V
Resonant Frequency Measurement Range     300 Hz to 7,000 Hz
Resonant Frequency Resolution     0.11 Hz (1 part in 65,000)
Resonant Frequency Accuracy     ± 0.7 Hz (0.01% FS)
Protection     Tran 1500 VDC isolation on the 5V
3000 VDC isolation on TTL signals
Isolation ICs are EN62368-1 certified
ESD protection to ±2KV silent protection for instrument ports

 
Thermistor Specifications

ITEM     SPECIFICATION

Thermistor pair + Thermistor pair part ID     IIM-TH-TH
Vibrating Wire + Thermistor pair Part ID     IIM-VW-TH
Measurement Range     0 Ohm to 196 mOhm
Measurement Resolution     0.183 Ohm
Accuracy : ± 0.1°C
Protection : 1500 VDC isolation on the 12 V
3000 VDC isolation on TTL signals
Isolation ICs are EN62368-1 certified