VSD (variable speed drive) and energy saving
Large display and easy-to-use user interface
Trip data log
Convenient maintenance
Various analog signal outputs
Multi-language support
RS485 communication (MODBUS)
Embedded Run/stop switch
Various timer function
Alarm and shutdown function
Self diagnosis
Thermometer and manometer
Embedded Run/Stop switch
Various timer function
Alarm and shutdown function
Self diagnosis
Thermometer and manometer
Dotech's complete solutions against refrigerant leak and noise
Accurate measurement with dedicated sensors (low and high pressure refrigerants)
Display of saturation temperature of refrigerant
All in one (pressure switch and gauge)
Easy installation
Virtual COM port mode of USB to RS485 converter
ESD and Surge Protection Built-in
USB-Powered(no extra power supply)
TX-Enable without control signal
Dotech's complete solution against refrigerant leak and noise
Refrigerant-dedicated sensor for compressor or condenser fan
Smart control (step control, rotating operation, delay time Set, pressure control modes)
Digital All-in-one (pressure switches, gauge and controller)
Easy installation and reasonable price
High stability and reliability
Digital calibration
Packard connector
Zero point can be shifted freely
Economical and stable
Various input sources for valve open ratio control
Compatible with various refrigerants
Smart-rail mount
High precision temperature transmission
Optimized for precision industry
Configurable analog signal transmission (4-20mA)
Communication via RS485 MODBUS (PC-HMI and PLC)
Built-in LCD
Simple and sleek design
2-wire technology and analog signal output (4-20mA)
High accuracy in total ambient temperature range
Wide power supply range (voltage)
Easy programming (calibration) via HART modem
Stable multiple control over up to 128 units via 2-way RS485 communication
Individual or simultaneous set value changes of TX3 series connected
Rotating display of each room status
Average temperature computation
High resolution of differential pressure
Pressure unit selection and variable range display
Excellent long-term stability
Sensor error detection
Analog signal output (4-20mA) and range configuration
RS485 communication (ModBUS/ASCII)
Smart-rail mount design
Valve open ration control mode by external signal
Compulsory valve open ration control mode by RS485
Open ratio maintenance mode for user’s input
Possible to precise control by hot gas by-pass operation
Various types of refrigerant are available
Compatibility with various kinds of EEV
- Great performance with excellent RTD sensor element
- 2-Wired 4~20mA output
- IP65 class for the extreme condition use
Economical and stable
Various input sources for valve open ratio control
Compatible with various refrigerants
Smart-rail mount (DIN 35 rail)
Micro step drive/1/65000 control
Integral & flush type transmitter
Application of high resolution graphic LCD
Capacitive touch button
Displays four measured values (T, RH, dT, differential pressure)
Display function of trend data graph
2 digital alarm outputs
3 analog (4~20m A) outputs
RS485 modbus RTU communication
Front cover made of stainless steel
Related parameters
Fluid: R22, R407C, R410A + refrigerant oil
Ambient temperature: -30 - 60°C (conductivity less than 50%)
Rated voltage: DC 12V ±10%, rectangular Wave
Drive: step motor phase 4
Excitation: phase 2-2
Excitation speed: 100PPS-250PPS
Flow direction: bi-flow
Full stroke: 2000 pulses
1. Main feature:
Heavy industrial CE approved
100V/m EMI protection
Reverse polarity protection
Extended temperature range
1% total error band
Compact outline
2. Specifications:
Range: 0 to 16bar
Overload pressure: 2 times of rated pressure
Burst pressure: 3 times of rated pressure
Accuracy: ±1%F.S
Analog signal output: 4-20mA
Wiring: 2 wires
Power supply: 9-30V DC
Pressure port: NPT1/4
Best reliability and stability
High density sintered alloy filter and electrostatic thin film element
Excellence under the damp-proof and dust-proof conditions
Low voltage and long-distance transmission
Analog signal transmission (4-20mA)
Efficient control of multiple air compressors
Intelligent balance control by rotation
Large display and easy-to-use user interface
Trip data log
Convenient maintenance
Analog signal output
Compact all-in-one type with high performance and powerful functions
RS485 communication (Modbus) and scalability
3-step fan speed control (low/mid/high)
All-in-one (control and display)
Easy-to-use control
Auto save and restoration of parameter values
Self-diagnosis
High resolution of differential pressure
Pressure unit selection and variable range display
Excellent long-term stability
Sensor error detection
Analog signal output (4-20mA) and range configuration
RS485 communication (Modbus/ASCII)
- Built-in digital motor protection function of digital types
- Can check motor current and cause of failure via data display
- Has a variety of protective elements (overheating, overcurrent, undercurrent, lock protection function)
- Be easy to check the cause of failure by storing the last one
- Built-in switching type power supply (light weight and energy saving by low power consumption)
- Built-in open type standard communication protocols (MODBUS RTU)
- Built-in fuse disconnection detection function
Pressure range: -199-500Pa (-0.8-2.0 inch H2O, -20-50mm Aq)
Compact panel-mounted controller
High resolution of differential pressure
Excellent long-term stability
2 relay or 2 NPN-TR outputs
Analog signal output (4-20mA) configuration
RS485 communication (MODBUS/ASCII)
- User-friendly intuitive UI
- Easy and convenient touch switch
- Various applications (Door types, light control, and circulation fan)
- 16 powerful timers (Trip log)
- Special Technical Support by Dotech
Economic and reasonable OEM humidity sensor module
Humidity voltage output: 1-3.6V
Low power consumption
Long stability and proven reliability not affected by repetitive condensations
Direct interface with micro-controller
RoHS Directive-compliant
Economic and reasonable sensor of high accuracy and quality
Compact size and slim design
Compatible plug-in module design
Various combinations of temperature and humidity outputs including passive
MEMS technology-based ultra-precise digital sensors
Excellent long-term stability and self digital correction
RS485 communication
Free monitoring S/W for PC
Slim size with large display
Excellent long-term stability and self-digital correction
3-way measurement particles, temperature and humidity
Reliable and precisely measured data
Multiple point data measurement and monitoring
Wired/wireless communication of measured data
Digital integration with analog switch and gauge
An integrated control for high, low-pressure protection and high-pressure fan
Various selectable display units such as MPa, kgf/cm2, bar and psi
Automatic/manual reset, selection of various refrigerants
Precise pressure control, sensor offset and sensor error detection
Digital integration with analog switch and gauge
High-pressure protection, low-pressure protection and oil pressure protection, an integrated high-pressure fan control
Various selectable display units such as MPa, kgf/cm2, bar and psi
Automatic/manual reset, selection of various refrigerants
Precise pressure control, sensor offset, sensor error detection
- Convenient voice alarm recording and response set
- Multiple transmission and centralized control
- Various user settings
- Wide range of input voltage
- Auxiliary battery connection for emergency
Compact size and unibody type
Excellent EMI/EMC and noise properties
Embedded ASIC for high accuracy
Wide range(-40 to 100°C)
DIN and cable type
Perfect compatibility with dotech's air compressor controllers
Basic built-in control function for 1 cycle and 1-2 cycle
Embedding the best control algorism for heat pump system
Observation for input temperature of heat source and output temperature
4-way valve control and/or selected operation for cooling and heating
Sequential and alternative operation in case of 2 cycle control
Transmission output (temperature transmission)
PC monitoring system using RS485 communication based on MODBUS protocol
- Measurement of multiple parameters
- Multiple analog signal outputs(4-20mA)
- Multiple relay outputs
- Easy network setup(RS485 and Ethernet)
- Powerful data log
- Various installations and filter protection
- VFD module
Control of multiple rack compressors
Control of up to 8 units (compressors and/or CDUs)- default: 4 compressors + 4 condensers
Efficient control of multiple units (setting up on/off respectively or between steps)
Perfectly even operation time (less than 1 hour of difference in total time)
Pressure/temperature control (intake pressure and discharge pressure respectively or linked control)
Powerful trip data log (up to 160 events)
Optimal control of condensing fan speed (4-20mA PID control)
Transmission (pressure and temperature)
PC monitoring system via RS485 of MODBUS protocol
Adoption RISC MICOM with high reliability
Easy to maintain and analyze troubles of equipment by storing 160 trip alarms log
Best calculation function of defrosting timing by various combination of 8 sources
Embedded day-timer to enable energy-saving operation
Easy expansion due to various analog transmission output function
Temperature and humidity control function, maximum 6 loop of independent step operating function
Alternative operation by maximum 4 compressors and 8 heaters
Backup operating function
Prevention from frequent starting failure occurred by low pressure hunting using low pressure switch in compressor
Successive starting function, pump down function and prevention from restarting function
Control function for cold water, hot water, steam valve, SCR, damper designed for HVAC (4-20mA PID control)
Detection of error in temperature and humidity sensor, alarm function and output of equipment state (cooling and dehumidification and heating and humidification)
Efficient receptor/scroll compressor control and convenient operation and maintenance
Various applications (chiller, CDU, spot cooler, water-cooled/air-cooled refrigerator and heat pump system)
Trip data log (up to 160 events)
Powerful timers (start delay, auto-stop delay and pump-down delay)
Temperature and pressure control (inlet/outlet temperature, intake pressure and discharge gas temperature control)
Efficient step/stepless control, convenience for operation and inspection
One-touch setup function (choosing the maker automatic setup according to their basic spec) (Bitzer, Hitachi, Refcomp, Fusheng, Hanbell, Mitsubishi, Roltec and Kobe)
Strong timer function (step delay, start delay, auto-stop delay, restart delay and pump down delay)
Temperature control, pressure control (input temperature, output temperature, intake pressure control, discharge gas temperature control and observation)
Humidification (heating)/dehumidification (cooling) output
Switching display of temperature and humidity
High/low limit alarm
Sensor calibration
Sensor error detection and on/off output control
Minimum on/off duration time
1.Overall control and monitor (protection) of refrigerator
2.Start, restart, pump down, alarm delay timer, discharge gas detection (high and low temperature)
3.Individual alarm message (OC, HP, LP, OP, INT)
4.Liquid injection (discharge gas detection)
Heating or cooling output
Sensor calibration
Sensor error detection
Auto save and restoration of parameter values
Minimum on/off duration time
Manual relay control
Analog signal output (4-20mA)
Communication via RS485 Modbus
Efficient step control
Multi/semi-multiple control
CDU control
Intelligent rotation
Low/high pressure alarm
Sensor calibration
Sensor error detection
VSD (variable speed drive) and energy saving
1-2 stage oil-free screw compressor control
Large display and easy-to-use user interface
Trip data log
Convenient maintenance
Various analog signal outputs (options)
Compact all-in-one type with high performance and powerful functions
RS485 communication (Modbus) and scalability
Efficient control of multiple oil-free scroll compressors
Intelligent balance control by rotation
Large display and easy-to-use user interface
Trip data log
Convenient maintenance
Compact all-in-one high performance and powerful functions
Analog signal output of pressure (4-20mA)
RS485 communication (Modbus)
VSD (variable speed drive) and energy saving
Large display and easy-to-use user interface
Trip data log
Convenient maintenance
Various analog signal outputs
Compact all-in-one high performance and powerful functions
RS485 communication (Modbus)
Heating or cooling output
High/low limit alarm
Sensor calibration
Sensor error detection
Auto save and restoration of parameter values
Minimum on/off duration time
Analog signal output (4-20mA)
Communication via RS485 Modbus
Compact size and easy to install
Precise and safe control with dual sensors in the wide range
Easy control and timer
RS485 communication (Modbus)
Compact size and easy to install
Precise and safe control with dual sensors in the wide range
Easy control and timer
RS485 communication (Modbus)
Compact size and easy to install
Precise and safe control with dual sensors in the wide range
Easy control and timer
Multiple measurements and control as one controller
Smart precise control
Convenient control of the user-interface
Precise temperature control, sensor calibration, sensor error detection data backup
Reciprocating and scroll compressors (chiller and CDU)
Super PID control algorithm
Dual sensor input processing
Powerful trip data log
Various analog outputs
Multilanguage support
Flexible and reasonable choice at competitive price
Heating or cooling output
Sensor calibration
Sensor error detection
Auto save and restoration of parameter values
Minimum on/off duration time
Manual relay control
Analog signal output (4-20mA)
Communication via RS485 Modbus
Various models for customer’s needs
Aux relays for various outputs (FX32J2 and FX32J3)
Digital input for event (status) signals
Built-in alarm
Powerful defrost
Temperature display mode selection
High/low temperature alarm
RS485 communication (Modbus)-options
Energy saving
Wide product range (over 20)
Multiple temperature sensors
4 power relays
Trip message and protection by alarm
RS485 communication (Modbus)
Display module connection (FxiView)
- Integrated module with temperature, humidity sensor
- Up to 100 nodes can be connected (RS485 models)
- Compact design, slim size
- Easy installation, offer 3 meter cable
- Support the various types of communications protocol
- Compact probe type
- Wide measurement range: 0 ~ 100%RH, -40 ~ 80°C
- Easy connection through a detachable screw type probe cable
- Different types of outputs such as voltage, current and digital
- Easy maintenance via interchangeable probe
- IP65 rating with metal enclosure
High precision temperature transmission
Optimized for precision industry
Configurable analog signal transmission (4-20mA)
Communication via RS485 MODBUS (PC-HMI and PLC)
Built-in LCD
Simple and sleek design
Aux relay for various outputs
Digital input for event(status) signals
Built-in buzzer
Powerful defrost
Communication(MODBUS)
Superheat control by PID
Various types of refrigerants compatible
PWM (pulse width modulation) and valve open ratio control
Remote operation
Pressure-based output control (for compression and decompression)
Low pressure switch (4 output)
High pressure switch (4 output)
Stable split system (pressure sensor and controller)
Rotation of freezing models or booster pump models with operating number control
New concept defrost control for flow measurement of bypass
Set a various standard point according to user's conditions
Precise dropwise measurement and accurate defrost control
Data measurement and monitoring through the communication functions
Humidification/dehumidification output
High/low alarm output
Sensor error detection and on/off output control
Minimum on/off duration time
Powerful dual measurement and control
Perfect syncing according to a Sensor temperature
Accurate temperature set
Smart control (various control modes)
Precise temperature control, sensor calibration, sensor error detection, data backup
Selection of output (heating/cooling)
Precise temperature control
Sensor calibration
Sensor error detection
Data backup
Min. & Max. ON/OFF maintaining time setup
Compact size and easy to use
Heating or cooling output
Built-in buzzer alarm
Sensor calibration
Sensor error detection
ON delay time
