1.  Brief Introduction:

RS485 is a new data acquisition system of network temperature, humidity and thermocouple, which using RS485 network technology and combining PC to amount records, curves showing and alarm functions. It can be widely used in multi-point temperature, humidity measurement and other parameters occasions, such as workshop, warehouse, boiler, oven, greenhouse of vegetable, farms etc.

2.  Specifications:

a)  Built-in the range of environment temperature detection: -40℃~100℃;

b)  Temperature Accuracy: approximately 1.5℃;

c)   Built-in the range of environment humidity detection: 0~100%RH;

d)   Humidity Accuracy: approximately 4%RH;

e)   The range of the external thermocouple temperature detection: 0~1024℃;

f)    Power requirements of the controller: DC5~7V @500mA, inside+ and outside-;

g)   Controlled relay specifications: 5A@ 250V AC, no overloading, or the equipment may be burned;

h)   Built-in the specification of relay protecting fuse: 5A, the LED will be instructed once the fuse is blown in high-voltage;

i)    The largest equipment quantity of a single network: <120 unit;

j)    Network cabling: 2-line network, the best distance is 1KM, proposed to use 22AWG shielded wire;

k)   Controller instructions: relay action instruction LED, communication instruction LED, power instruction LED;

l)    PC Requirements:

                       i.  OS: Windows system;

                      ii.  Communication forms: RS485 protocol;

                     iii.   Software space requirements: <50MB;

                     iv.   Memory requirements: <2MB;

m)   Software Features:

                       i.  Record data to a file automatically, with format txt or csv;

                      ii.  Generate curve synchronic and automatically, the curve can be exported into pictures;

                     iii.  The record interval can be modified;

                     iv.  Set an email alert, that is sending email to the specified mailbox in abnormal;

                      v.   Provide simple secondary development kits and simple routines(Additional Charge);

                     vi.   Functions can be customized according to customers’ request(Additional Charge);