BESFUL BF-15B + Solar dual-sensing line microcomputer temperature difference instrument temperature difference controller

Description

Functional Overview
BF-15B + microcomputer temperature difference controller, directly set the temperature difference upper limit to achieve the effect of temperature control of the water cycle, the panel is simple and convenient to operate. To make hot and cold water cycle, mainly by improving the thermal efficiency high and low temperature difference between the value measured by the sensor and the upper and lower limit set temperature difference. Mainly used in hot water circulation system backwater control.

The main function
Function Name Function Description
Temperature control when the temperature difference T ≤T limit, normally open relay disconnected, normally closed pull; when the temperature difference T ≥T limit, normally open relay pull, normally closed off.
Manual output control when the temperature difference T> T lower limit, you can always press the or to manually open the output until the next T temperature difference ≤T limit automatically stop, or again or manual close output.
Down memory protection as long useless or unexpected power outages user, the controller can maintain the original settings unchanged, and so when the user re-use or calls, the controller can continue to work in accordance with the original set parameters.

Specifications
Parameter Description
Supply voltage and power consumption 90-250 VAC / 50Hz; Power consumption: <2W.
Installation and opening window installation, 68x68mm
Machine size 72x72x60mm
Gross weight 214 g
Display LED bright LED display
Temperature measurement range -20 ~ 140
Differential temperature measurement range of -99 ~ 120
Set the temperature control range of 0 ~ 60 Accuracy 1 degree
Enter the two-way 240K NTC thermistor temperature sensor input, the signal line extend the effective range of 100 meters.
One relay output normally open normally closed contact output, output contact current capacity of resistive load 6A, inductive load 1A, controllable electric heating 1000W or 200W motor or pump, the greater the load required AC contactor expansion.
Down memory protection when power failure, the controller can keep the set value unchanged.
Environmental conditions Ambient temperature: -10 ~ 50 ; Relative humidity: 50 to 95 non-condensation.

Installation dimensions

Application examples
1. Application of solar hot water circulation

2. backwater System

Wiring diagram: