What are the benefits of converting RTD Pt100 signals to CAN communication?

In environments requiring precise temperature measurement, the biggest advantage of digital transmission (CAN) is that it is far less susceptible to external noise than analog transmission. Additionally, bus wiring allows centralized management of numerous temperature measurement points, significantly reducing wiring labor for plant piping and large machinery.

Are there features to improve measurement reliability?

Yes, COCORESEARCH RTD meters feature a Resistance Check Function. By enabling early detection of sensor wire disconnections or anomalies, it contributes to safety in critical, non-stop temperature monitoring lines such as food machinery and precision chemical processes.

What can you tell us about data update rates and communication protocols for CAN communication?

We offer models with 40 ms updates (HTL-24R) as well as high-speed updates as fast as 1 ms (HT-24R). They also have a proven track record supporting protocols such as SAE J1939 (DLC 8 bytes or less), enabling seamless integration into automotive development and construction equipment control networks.

What configurations are available when multi-channel temperature measurement is required?

We offer flexible solutions ranging from standalone 1-channel units to custom box-mounted units that integrate multiple channels into a single enclosure. On models with a front USB Type-C port, the free LINKSHIP software enables easy batch setup management and CSV data logging on a PC.

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Temperature (RTD Meter) to CAN Converter Lineup

Signal Conditioners Converting Various Sensor Signals to CAN

Converts signals from RTD Pt100 (3-wire) sensors to CAN.
Used as CAN signal converters and CAN signal conditioners across various fields including automotive development, construction equipment, and industrial machinery.
Automatically outputs measurement data to the CAN bus at configured update intervals, enabling easy data collection.

Main Applications of RTDs

Plant & Industrial Process Control
Fluid temperature management in reaction vessels and piping for petrochemical, pharmaceutical, and food industries

HVAC Technology
Temperature measurement in building HVAC ducts

Refrigeration & Cold Storage
Temperature monitoring in cold storage and refrigerated warehouses

Cryogenic Technology
Accuracy verification in ultra-low temperature ranges such as LNG (Liquefied Natural Gas) tanks

Precision Machinery & Electronics
Winding temperature monitoring (overheat protection) for motors, generators, and transformers

Automotive Testing
Reference temperature measurement for exhaust gas and EV battery testing

Environment, Meteorology & Calibration Standards
High-precision air thermometers for meteorological observation, temperature control for environmental chambers

For Various Applications

Plant Piping Temperature Control

Food Machinery Temperature Measurement

Precision Temperature Control

*Images are for illustrative purposes

Basic System Configuration

Input RTD Pt100 3-wire
	RTD Input

Conversion • Moving average up to 99 • Zero shift • HOLD [Current / Max / Min / Max Peak-to-Peak]
Temperature (RTD Meter)-to-CAN Converter		CAN Output

CAN Bus Outputs CAN data at each update interval
PCs, Data Acquisition Units, Loggers, etc.

Merits of CAN

3-wire wiring: Significantly reduces wiring compared to Ethernet or BCD

Robust error detection: High noise immunity and enhanced safety

SAE J1939 examples available
(DLC 8 bytes or less)

Measurement Type

Temperature Measurement

Other CAN Converters

Load Cell to CAN >

Excitation: 2.5V / 5V / 10V | Bridge: 120 Ω / 350 Ω


Strain Gauge	Load Cell	Pressure Sensor	Accelerometer

Current to CAN >

Supports ±100 μA to ±10 A


Battery Charge Current	Solenoid PWM Current	Motor	Clamp-on Sensors

Voltage to CAN >

Supports ±10 mV to ±70 V


Pressure Sensors	Displacement Sensors	ECU	Level Sensors

Resistance to CAN >

For Displacement & Resistance Output Sensors


Potentiometers	Internal Resistance

Thermistor to CAN >

High-Precision Conversion via Proprietary Algorithm

NTC Thermistor

TC to CAN >

For Thermocouple Types K, J, R, E, T, B, N, S

Speed (Freq. Pulse Input) to CAN >

High Precision with Periomatic^TM


Gear Sensors	Flow Sensors	Rotary Encoders	Linear Encoders

Angle / Position / Displacement to CAN >

For Length, Angle, Displacement, Flow Rate, etc.


Gear Sensors	Stroke Sensors	Rotary Encoders	Linear Encoders

Torque (Freq. Pulse Input) to CAN >

For Torque & Fuel Mix Ratio Sensors


Torque Sensors	Flex-Fuel Sensors

CAN to Voltage Converters >

Convert CAN to Voltage or Alarm Signals


Automotive	Construction Machinery	Agricultural Machinery	Office Equipment, etc.

Applications & Capabilities

For plant piping temperature control and food processing machinery temperature measurement:
Converts RTD temperature sensor signals to CAN for data acquisition

Reduces noise via CAN communication and reduces wiring labor when using multiple units

CAN communication with updates as fast as 1 ms

CAN communication automatically outputs measurement data at each update interval, reducing software development costs *Depending on model
(Non-CAN models retrieve measurement data via command-response method)

Selection Points

RTD Temperature Measurement

CAN continuous output function
Easily acquire measured values as digital data *Depending on model

CAN communication with updates as fast as 1 ms (Optional)

Examples available supporting SAE J1939 (DLC 8 bytes or less) *Please consult us

Equipped with Resistance Check Function

Budget Models
Economy Series HTL-R Series:
CAN communication with 40 ms updates

Lineup

Common Features

・Simultaneous output of 16-bit analog and CAN (1 ms) [Optional]
・Various other outputs: RS-485 / Alarm / Modbus [Optional], USB-C [Standard]
・HOLD (Current / Min / Max / Max Peak-to-Peak), Span/Zero set, Span/Zero shift functions
・Free dedicated software: Configuration management, report printing, and data logging

HT-4801R

48 x 96 size

Analog Output / Digital Communication
1 to 9999 ms update

Power Supply
100 to 240 V AC / 9.6 to 30 V DC

Display 6 digits
Green LED type also available

Dimensions W96, H48, D99 mm

Front Buttons
Span/Zero set, Span/Zero shift, etc.

HT-24R

Versatile 1 CH Type

Analog Output / Digital Communication
1 to 9999 ms update

Power Supply
7 to 60 V DC / 5 V USB bus power

Display 5 digits
Green LED type also available

Dimensions W48, H24, D106 mm

DIN Rail Mounting Supported

HTL-24R

Versatile 1 CH Economy Model

Analog Output / Digital Communication
40 to 9999 ms update

Power Supply
7 to 30 V DC / 5 V USB bus power

Display 5 digits
Red LED only

Dimensions W48, H24, D106 mm

DIN Rail Mounting Supported

Multi-CH Box-Mounted

Flexible CH count, connectors, etc.

Multi-CH Input Custom product

Power Supply
8 to 30 V DC

Display
6 digits or 5 digits

Selectable Connectors
BNC / LAN / D-sub / Terminal block

Custom Modifications Available [Please Contact Us]

View List >

Flexible Choice of Measurement Types & Channels

Convenient, Easy & Low Cost

Functional Modifications: Power, Output Voltage, Communication Specs, etc.

Available from 1 Unit

Calibration Available as Embedded Unit

Calibration Certificates & Traceability Charts Available

Enclosure / Box Mounting

Multi-CH with Display

Multi-CH Radiation Thermometer CAN Output

With SD Logger

Rack Mounting

Handheld Type

Selection of Connectors, Display Presence, Power Supply, etc.

Connectors

Terminal Block

For Thermocouple

Banana Plug

BNC

LAN

USB-C

D-sub

HDMI

Display Options

LCD Monitor

Without Display

External Monitor Output

Free monitor display software
*Monitor not included

Power Supply

Smart Setup & Logging

Configuration management, report printing, and CSV logging with free LINKSHIP software

> Go to LINKSHIP Page

CSV Logging

Logging at user-specified intervals (in seconds). Custom logger software is also available.

Compare & Verify Settings

Compare and verify multiple setting parameter lists.

Save & Copy Settings to PC

Prevents manual entry errors while reducing management effort and costs.

Prevent Operational & Setting Errors

Configure and verify settings on the PC screen to avoid key-operation errors on the main unit.

Reduce Setup Man-Hours

Copy master setting data and simply write it to multiple units.

USB Type-C Standard Equipment

Front USB: Configuration, Logging, and Power Supply

Configuration, logging, and power supply are also supported via rear terminals*. Rear USB types are also available.
*Configuration and logging via rear terminals require CAN or RS-485 option.
*For Load Cell / Pressure Meters ST(L), supply power via rear terminals, not the USB connector.

Rear USB: Configuration & Logging

Configuration is also possible via front buttons or rear terminals.
*Configuration and logging via rear terminals require CAN or RS-485 option.

Ethernet (LAN) option also available

Console: No PC or LINKSHIP Needed
[Sold Separately]

> PL-5A Product Page

*Dedicated for configuration / Does not support data logging or power supply.

Easy Wiring & Mounting

Designed for Field Usability

Pluggable Terminal Connector
Just connect wires to the plug and insert

Pluggable Terminal Connector
Spring-lock type [Standard]

Pluggable Terminal Connector
M2 screw-lock type [Optional]

Fixed Connector
[Custom Modification]

Mounting Hooks [Left/Right]
Easy tool-free attachment and removal

Front Panel Configuration & Measurement
Prevents accidental operations with Key Lock

(A) Operation Indicator LEDs
(B) Front Membrane Sheet Buttons
[Program Mode] MODE, Digit Select, Value Set, ENTER
[Measurement Mode] Span Shift, Zero Shift
Key Lock, etc.

Front Panel Blue / Pink Types [Optional]
*Design is subject to change

Mounting Hooks [Left/Right]
Easy tool-free attachment and removal

Versatile Usage Options

Portable Measurement

Carry the unit, PC/tablet, and cables for USB-powered* measurement. Carrying case BXS-1 (sold separately) is also available.
*For Load Cell / Pressure Meters ST(L), supply power via rear terminals, not the USB connector.

> BXS-1 Overview

Panel Integration

Compact 24x48 size contributes to space savings.

> 24x48 Dimen

sions

DIN Rail Mounting

One-touch mounting fixtures and models without displays are available.


BXF-DN2 DIN Rail Fixture (Sold separately)	2451 Type Without Display	2431 Type With Display
> BXF-DN2 Page	> View 2451 & 2431 Details

> Inquiry Form