The Dragino LTC2 Industrial LoRaWAN Temperature Transmitter is designed to monitor temperature for different environment. It supports to read PT100 probe and convert the value to temperature and
uplink to IoT server via LoRaWAN protocol.
LTC2 supports datalog feature. User can retrieve the sensor value via LoRaWAN downlink command.
LTC2 is powered by 8500mA Li-SOCI2 battery for long time measurement. The battery can run 2~10 years depends on the network environment and working mode.
Each LTC2 has two internal 16-bit ADC interfaces and are calibrated on 12 set resistors to make sure the accuracy measurement on wide range.
LTC2 is LoRaWAN v1.0.3 compatible. Each LTC2 is pre-load with a set of unique keys for LoRaWAN registration, register these keys to local LoRaWAN server and it will auto connect after power on.
Features:
LoRaWAN v1.0.3 Class A
max: 2 x monitor temperature channels
Support 3 -wire PT-100
8500mAh Li-SOCI2 Battery
Firmware upgrade via console
Wall Mountable
Configurable via LoRa or UART
Datalog and retrieve via LoRaWAN
Use pre-load PT100 probe or 3rd PT100 probe
Factory calibration for different resistance range
Support accuracy measure of resistance and upload
Battery Monitoring and upload
Specifications
Micro Controller:
➢ MCU: STM32L072CZT6
➢ Flash:192KB
➢ RAM:20KB
➢ EEPROM: 6KB
➢ Clock Speed: 32Mhz
Common DC Characteristics:
➢ Supply Voltage: built in 8500mAh Li-SOCI2 battery
➢ Operating Temperature: -40 ~ 85°C
Temperature Sensor:
LTC2-SI: Standard IP68 Type
Standard IP68 Probe Version
LTC2 with 1 x Standard IP68 PT100 probe.
Installation: Insert
Cable Length: 2m
PT100 Class: Class A
Probe Dimension: 4*30mm
Measure Range: -50 ~ 200 °C
Suitable Environment: General environment
LTC2-FS: Food Safety Type
LTC2 with 1 x Food Safety PT100 probe.
Installation: Insert
Cable Length: 2m
PT100 Class: Class A
Probe Dimension: 4*150mm
Measure Range: -50 ~ 200 °C
Suitable Environment: Food temperature measurement
LTC2-FT: Flat Type
LTC2 with 1 x Flat Type PT100 probe.
Installation: Attached
Cable Length: 2m
PT100 Class: Class A
Probe Dimension: 8*25mm
Measure Range: -50 ~ 200 °C
Suitable Environment: Attached to the measure point.
LTC2-LT: Low Temperature
LTC2 with 1 x Low Temperature PT100 probe.
Installation: Insert
Cable Length: 2m
PT100 Class: Class A
Probe Dimension: 4*30mm
Measure Range: -196 ~ 150 °C
Suitable Environment: Low temperature measurement, such as COVID vaccine transport
LTC2-HT: High Temperature Version
LTC2 with 1 x high temperature PT100 probe.
Installation: Insert
Cable Length: 3m
PT100 Class: Class A
Probe Dimension: 4*30mm
Measure Range: -70 ~ 550 °C
Suitable Environment: High Temperature
LTC2-NA: No Probe
User can connect to their own PT100 probe
Grand Hole: M12
LoRa Spec:
➢ Frequency Range,
✓ Band 1 (HF): 862 ~ 1020 MHz
➢ 168 dB maximum link budget.
➢ High sensitivity: down to -148 dBm.
➢ Bullet-proof front end: IIP3 = -12.5 dBm.
➢ Excellent blocking immunity.
➢ Built-in bit synchronizer for clock recovery.
➢ Preamble detection.
➢ 127 dB Dynamic Range RSSI.
➢ Automatic RF Sense and CAD with ultra-fast AFC.
➢ LoRaWAN 1.0.3 Specification
Power Consumption
➢ Sleeping Mode: 20uA
➢ LoRaWAN Transmit Mode: 125mA @ 20dBm 44mA @ 14dBm
Applications
✓ Wireless Alarm and Security Systems
✓ Home and Building Automation
✓ Industrial Monitoring and Control
✓ Long range Irrigation Systems.
Order Info:
LTC2-XX-YY:
XX: probe option, spec see datasheet
SI: Standard IP68
FS: Food Safety
FT: Flat Type
LT: Low Temperature
HT: High Temperature
NA: No Probe
YY: the default frequency band
EU433: Default frequency band EU433
CN470: Default frequency band CN470
EU868: Default frequency band EU868
IN865: Default frequency band IN865
KR920: Default frequency band KR920
AS923: Default frequency band AS923
AU915: Default frequency band AU915
US915: Default frequency band US915
Useful Link:
Datasheet
User Manual
Decoder
Firmware
Certificate
ER26500_Datasheet-EN.pdf
ER26500_SPC1520_Drawing.pdf
