CANmod.temp: 4 x Thermocouple-to-CAN [Temperature Sensor]


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This thermocouple-to-CAN module produces temperature data from 4 thermocouple sensors and outputs it via CAN bus. The module is 100% standalone - no PC required.

The module supports all thermocouple types (B, E, J, K, N, R, S, T) and can be daisy-chained for 8, 12, 16, ... channels.

You can integrate the module with any CAN bus system - e.g. to provide temperature data for your ECUs or existing CAN hardware.

As an example, you can use the module as an add-on for the CANedge - ideal for e.g. engine dynos, EGT analysis, HVAC monitoring and other temperature telematics use cases.

Functionality The device supports 4 x thermocouples for outputting temperature sensor data via CAN bus
Included CANmod.temp module, USB dust cover (thermocouple sensors and mini USB adapter not included)
Firmware Supports free firmware updates via USB for adding features
Configuration Configuration files based on the popular open source JSON schema concept (similar to the CANedge)
Software Free open source editor tool for easy device configuration (offline/online version available)
Safety CE, FCC, IC and RoHS certified (see the Docs for certificates)
Warranty 1-year warranty
Support Free, fast & high quality support
Origin Denmark
SENSOR (temperature)
Channels Supports up to 4 thermocouple sensors/channels (plus ambient temperature via cold-junction)
Module Professional-grade MAX31856MUD+ precision thermocouple converter
Temperature Range Supports a range of -210°C to +1800°C (depending on thermocouple type)
Formatting The module conveniently outputs degrees celsius via automated edge linearization
Accuracy Lab-grade thermocouple voltage measurement accuracy with cold junction compensation
Resolution 1 degC resolution (in 1 CAN frame) and/or 0.01 degC resolution (in 2 CAN frames)
  Note: The 0.01 degC resolution typically exceeds the practical probe accuracy
Protection Thermocouple inputs are protected against overvoltage conditions up to ±45V
Types Supports thermocouple types B, E, J, K, N, R, S, T (via configuration)
Filtering Line frequency filtering of 50Hz and 60Hz (via configuration)
Fault Detection Thermocouple fault detection (open thermocouples, over- and undertemperature) is communicated via CAN
Cold Junction ±0.7°C (max, -20°C to +85°C) cold-junction accuracy
CAN Signals The module communicates temperatures and fault statuses (for a full list, see the Docs or DBC file)
Thermocouple temperatures: The degree celsius (degC) temperature of each thermocouple probe [5 Hz]
Ambient temperature: The ambient temperature measured via internal cold-junction [5 Hz]
Faults: Status of each thermocouple sensor [5 Hz]
Channels 1 x CAN channel
Modes The device can either broadcast the data onto the CAN bus - or provide it on-request
Standard ISO 11898: Compliant with CAN (between 5K and 1 Mbit/s baud rates)
Identifiers Compliant with CAN specifications 2.0A (11-Bit ID) and 2.0B (29-Bit ID)
Termination Termination can be toggled via switch below DB9 connector
Retransmission Retransmission of frames that have lost arbitration or been disturbed by errors
Transceiver Protection Protection: +/- 25kV HBM ESD, +/-12kV IEC ESD, +/-14 V bus fault, short circuit
Common mode input voltage: +/-12V
TXD dominant timeout (prevents network blocking in the event of a failure)
Bit Rate Select between standard bit rates (5K to 1M) or use custom bit-timing
Enable/Disable Individually enable/disable the CAN message
Identifier Customization Individually configure the CAN ID (11-bit or 29-bit)
Push/Poll Mode Individually configure 'trigger' modes for the CAN messages (push or poll)
Frequency Individually configure prescaling of the CAN message frequencies to lower rates
Thermocouple Type Specify the thermocouple type for each channel (e.g. Type K, Type J, ...)
Line Noise Filtering Select rejection of 50 Hz (EU) and its harmonics or 60 Hz (USA) and its harmonics
Input Supply +5V to +26V DC via the DB9 connector (power via pin 1 or pin 9)
Power Consumption Extremely low (<1W) - no risk of battery drainage
Protection Reverse voltage protection on CAN-bus supply
  Transient voltage event protection on supply lines
Enclosure & Weight Compact aluminium enclosure: 52.5 x 70.0 x 24.5 mm (L x W x H), 80 grams
Connector (Front) 1 x Standard D-sub 9 (DB9) connector
Connector (Back) 4 x miniature thermocouple female connectors
Pin-Out See the product manual for the DB9 connector pin-outs
USB Standard mini USB connector for config/firmware updates and streaming (USB cable not included)
LEDs Module status via 3 external LEDs: Power, CAN bus, Memory
Temperature Operating temperature (CANmod.temp module): -25degC to +70degC
IP Rating IP Rating 40
Mounting Module can be mounted via e.g. rugged double-sided tape, zip-ties or a mounting bracket
CANmod.temp: 4 x Thermocouple-to-CAN [Temperature Sensor]