Functions overview

BF-D220A+ can be widely used in various applications requiring temperature control, e.g., hot water systems, solar systems and heat pump systems.

The controller features one-channel input and two-channel outputs. The input is from one-channel 10K NTC thermistor sensor for temperature measurement.

With two-channel outputs, the controller is able to control two relays (NO contacts) respectively to output temperature control within the range of -45 ℃～110 ℃. In addition, it is also provided with some special functions, such as [temperature control hysteresis] adjustment and [temperature measurement deviation] correction.

Thanks to the wide range of rated power supply, the controller is able to ensure stable, reliable and durable operation by adapting to AC80V～240V power supply.

Installation and Features

Main Features

• One-channel temperature measurement, two-channel relay temperature control, NO contact output

• Deviation of measured temperature can be corrected by users

• Memorize the set parameter for a long time after power failure

• Imported NTC 10K temperature sensor for stable and reliable measurement

• No compensation required for long-distance measurement by the temperature sensor

• Rail-mounted design to enable installation on the standard guide rail in an electric cabinet

• Switch mode power supply, ensuring stable running with AC80-240V power supply
  
  

Specifications and Technical Data

Packing List of Product	1. Main unit 2. 1 x NTC (10K) temperature sensing wire 3. User instructions
Overall Dimensions (mm)	L 91 × W 40 × H 52
Installation and Dimensions (mm)	The controller can be installed on a standard DIN guide rail or permanently mounted with two fixing holes (hole pitch = 84 mm).
Weight	Net weight: 0.160 Kg Gross weight: 0.2Kg
Power Supply and Consumption Power	AC (80～240)V, 2W
Operating Conditions	-10℃ ~ 50℃
Display Mode	3-digit LED digital display
Keys	Push-type membrane keys
Input	One-channel (10K) NTC thermistor temperature sensor input, measuring range -50 ℃～120 ℃
Output1	1. Two-channel relay NO contact temperature control outputs. 2. Current capacity of each channel contact: 5 A (resistive load) and 1 A (inductive load) Able to control 1000W electric heating equipment or 200W motors or water pumps. AC contactors should be used to increase the capacity for larger loads.
Measurement Range	-50 ℃～120 ℃
Setting Range	-45 ℃～110 ℃
Control Range	-45 ℃～110 ℃
Other Parameters	1. Temperature sensing wire can be extended by 100 m with ordinary wire for long-distance connection. 2. Memorize the set parameter for a long time after power failure   3. Temperature control hysteresis: 0 ℃～30 ℃.

Power Supply and Input & Output Ports