Temperature Controller

Product Details:

A Universal Digital Indicator (UDI) from Honeywell is an industrial panel instrument used to measure, display, and monitor process variables like temperature, pressure, flow, or level in real time.

Applications

Boilers and furnaces (temperature indication).

Chemical plants (pressure/flow monitoring).

Food & pharma production lines.

   Universal input (TC, RTD, mA, voltage)

High accuracy (~±0.1%)

4-digit LED display (dual color)

Alarm functions (up to 5 alarms)

RS485 Modbus communication

Wide power supply range

Compact 1/8 DIN size, IP65 front

Easy front-panel configuration

HVAC and utilities systems.

Product Details:

This standalone micro-controller based LCD temperature controller provides proportional plus integral (P+I) and on/off temperature control for commercial Heating, Ventilating & AirConditioning System such as Hydronic Heating, Air Handling Unit, Heat Exchanger or Condensing Tower. This controller has a modulating analog 2 to 10Vdc or 4 to 20mA output and a 2A on/off output to realize various optional control functions including cool/heat changeover, heat/coolsequence control, emergency interlocking and auto-alarmingcontrol.

Features
• PI (proportional plus integral) control actionprovides accurate, stable and comfortabletemperature control.• Compatible with series 70 direct-coupleddamper / valve actuator like ML7161,ML7174, ML7420 / ML7421series ML7425,ML7984 series, N20010, S10010, M7410Eseries, CN7505, CN7510 / CN72 seriesCN7220 & CN7234 also VC79 series etc.• Backlit LCD to display both setting andmeasured value.• Adjustable Zero Energy Band, On/OffDifferential, Proportional Band andTemperature Offset.• Analog output can be forced manually to beconvenient for installation & commissioning.• Optional 2 to 10Vdc or 4 to 20mA directacting and reverse acting analog output.• Selectable internal and external temperaturesensor.• Wide temperature control range (-20 to 110°C by using external temperature sensor) issuitable for extreme temperature control suchas steam and ice water.• Watch Dog Timer: to resume the controllerfrom hanging condition.• Brownout effect to avoid malfunctioning andcare on power ON and power OFF.• Pluggable terminal block allows pre-wiringoutside of the controller.• Compact size and slim design provideelegant and attractive modern styleappearance.

Product Details:

 Modulating PI control

 Control depending on the room or the return air temperature

 Output for a DC 0…10 V actuator and AC 230 V electric heater (ON/OFF)

 Automatic or manual heating/cooling changeover

 Operating modes: Comfort, Economy and Protection

 Two multifunctional inputs for keycard contact, external sensor, etc.

 Adjustable commissioning and control parameters

 Minimum and maximum setpoint limitation

 Adjustable minimum and maximum limitation for air flow signal DC 0...10 V

 Output signal inversion as an option (DC 0...10 V  DC 10...0 V)

 Mounting on recessed rectangular conduit box, 60.3 mm fixing centers

 AC 24 V operating voltage

Additional Information:

• Delivery Time: Ex Stock

Product Details:

Temperature controllers used in industrial, HVAC, and home applications. Below are some of the most popular Honeywell temperature controller products, with real examples you can consider.

Industrial machines – control temperature in ovens, furnaces, and heaters.
Process industries – used in chemical, pharmaceutical, and food processing.
HVAC systems – maintain temperature in AC, chillers, and air handling units.
Laboratories – for incubators and testing equipment.
Agriculture – greenhouse temperature control.
Home use – smart thermostats for room temperature control.

Specifications:

A Honeywell AHU thermostat is a temperature controller used in Air Handling Units (AHU) to maintain desired air temperature in HVAC systems.

Specifications:

Type: Digital thermostat / AHU controller

Control mode: ON/OFF + P+I (Proportional-Integral)

Input: Built-in or remote temperature sensor

Output:

• Relay (ON/OFF control)
• Analog (2–10 V / 4–20 mA)

Display: LCD (setpoint & room temperature)

Power supply: ~230–240 V AC (typical)

Temperature range: Wide range (approx. 0–50°C or higher models)

Fan control: 3-speed fan control supported

Valve control: Water valve ON/OFF or modulating

Mounting: Panel / wall mount.

Applications

• Air Handling Units (AHU)
• HVAC systems in buildings
• Hospitals, malls, offices
• Chillers & cooling systems

Product Details:

A programmable controller is an electronic device used to automatically control industrial processes such as temperature, pressure, flow, or motion. It allows users to set and adjust control parameters, setpoints, and sequences according to specific application needs. These controllers support various control methods like PID or ON/OFF control, and often include features such as setpoint programming, auto-tuning, and alarm functions for precise and reliable operation. They typically have digital displays, multiple input/output options, and communication interfaces (like RS232/RS485) to connect with other systems such as PLCs or computers.Programmable controllers are widely used in industries for automation, improving accuracy, efficiency, and consistency in process control. They typically have digital displays, multiple input/output options, and communication interfaces (like RS232/RS485) to connect with other systems such as PLCs or computers.Programmable controllers are widely used in industries for automation, improving accuracy, efficiency, and consistency in process control.

Features
This is a PID temperature/process controller with easy configuration and multiple control options (PID or ON/OFF, heat/cool, motor control). It features auto-tuning, dual display with bar graph, and programmable setpoints (up to 16 segments). It also offers advanced alarms, RS232/RS485 communication, remote setpoint control, and manual/auto modes. The device is IP65 protected, supports secure parameter locking, and meets CE & UL standards.

Specification

A programmable controller (PID/process controller) typically includes the following key specifications:

 

• Control Types: PID, ON/OFF, Heat/Cool control, motor position control
• Input Types: Thermocouples (K, J, etc.), RTD (Pt100), linear inputs (mA, V)
• Output Types: Relay, SSR drive, analog output (4–20 mA / 0–10 V)
• Display: Dual 4-digit LED/LCD for Process Value (PV) & Setpoint (SP), bar-graph for output indication
• Programming: Multi-step setpoint programming (e.g., up to 8–16 segments)
• Auto-Tuning: Automatic PID parameter tuning
• Alarms: Multiple alarm outputs with various modes (high/low/deviation, etc.)
• Communication: RS232 / RS485 with protocols like Modbus RTU / ASCII
• Control Modes: Automatic and Manual modes
• Accuracy: Typically ±0.1% of full scale
• Sampling Time: Fast response (e.g., 0.1–0.5 sec)
• Power Supply: 100–240V AC or 24V DC (model dependent)
• Protection: IP65 front panel (dust and water resistant)
• Security: Parameter lock with password protection
• Certifications: CE, UL (optional)

Temperature & Relative Humidity (Temp-RH) sensor specification using a commonly used industry reference sensor like DHT22 (AM2302). This gives you a practical baseline; other sensors (SHT31, BME280, etc.) follow similar spec formats but with higher accuracy.

Application:
H7080B series duct mounting humidity and temperature sensors are designed for environmental monitoring and control applications in industrial, commercial and general building.These sensors can be used for discharge, or return air control.

Specification:

Measurement: Temperature + Relative Humidity (RH)

RH range: 0 to 100% RH (non-condensing)

Temperature accuracy: typically ±0.5 °C

Humidity accuracy: typically ±2% to ±4.5% RH (model dependent)

Output types: Analog (0–10 V / 4–20 mA) or Digital (I²C / SPI in smart models)

Supply voltage: 3.3 V, 5 V, or 24 V (depends on series)

Sensor type: Capacitive humidity + integrated temperature element

Operating range: approx. –40 °C to +85 °C (varies by model)

Application: HVAC, building automation, indoor air quality monitoring.

Specifications:

T6861 digital thermostats are designed forapplication of 3-speed fan and valves in fan coilsystem. Including:2-pipe cool only/heat only/manual changeover and4-pipe manual or automatic changeoverVentilation modeManual or automatic 3-speed fan controlWater valve controlFan speed can be selected to automatic or manual3-speed control mode.In ventilation mode, fan only support manual speedcontrol.

Features:
• Super modern appearance design, suitable foroffice, hotel and residential building• Horizontal and vertical model available for variantapplication• Slim design, direct installation on 86 size box• Stylish and elegant blue/green backlight with blue/green colour ring• 2-pipe/4-pipe integrated into one unit with easyconfiguration• Big LCD display with English and icons• Easy to install and set-up• Time on/off function• Selectable room temperature or setpoint display• Manual or automatic fan speed selection• Remote temperature sensor• Energy saving mode activation by button press ordry contact (key card)
• Cycle per Hour (CPH) function• Adjustment of display room temperature• Temperature unit either oC or oF• User setting can be kept when power off• Freezing protection function available• Lock or unlock keys or part of keys in Installer Setup• Heat and cool setpoint limitation for energy saving