SCW980 temperature Controller Thermocouple Thermostat

SW98A

A：Temperature Instrument for Thermocouple

 It is connected with the thermocouple probe uesd for momitoring the temperature of molten metal for smelting and casting.

Technical Specification:

1.Measuring error:±0.2% ±1characters.

2.Working conditions:temperature 5-40°c relative humidity 85%

3.Storage conditions:temperature 0-45 °crelative humidity 85%

4.Power supply way:AC 220V ±10%;Frequency:50HZ± 2Hz

5.Power loss approximately: 50W

c.The red candle bright expressiong survey process ended,at the same time the electric bell inspires the sound,4-20mA or 1-5V analog output interface (specify when ordering),BCD at-large external display for the parallel interface

(specify when ordering),(Printer interface (specify when ordering)).

B:Working principle

Turn on the power after, thermocouple input when open, instrument in the clock display state.

Through to the thermocouple, prepare light(green light), meters from the clock display state the standby state,The screen display input temperature (cold end temperature) When thermocouple insert metal 1 to 2 seconds solution, yellow lights up, measurement instrument enter into the state, computer automatic find temperature platform. After balance a red light, electronic device ring, said end of measurement, and remind the operator carry guns.

Measurement end.

C：Instrument self-inspection

Prompt:

E-L Cold end compensation fault

Reason:

The cold end compensation devices AD590 to damage, line contact undesirable, analog circuit is part of the 4053 damage.

D：The basic parameters and structure

E : Floor schematic diagram and description

F: Instrument calibrated

1. Clock adjustment

Instrument on the front panel has three button to select button, respectively raised button, cut button. Adjust the time, we should take thermocouple signals input to open, or button function failure. When the press when the choice, instrument display content to choose for quantity that can in turn make screen shows month, day, and minutes. According to rise or fall can make the display value should be adjusted to the value set, then press the choice to switch to the display value next to the amount of choice, then press rise or fall to to set data, which in turn by choice, raised or cut until complete adjustment.

2. Measurement state set:( Need this function, should be in order.)

Instrument on the front panel has a function selection switch, choose the working state of the instrument, when switch to rapid temperature measurement gear, instrument and rapid temperature measuring thermocouples used together, in the rapid temperature before, when the switch to continuous files, and supporting the use of the industrial thermocouple, continuous determine the temperature of the object to be tested.

Special remind users note: whenever this switch state changes, should make thermocouple signal input to open a or make instrument to electricity, the measurement condition to convert to is invalid.

3.Measuring parameters set(Dial the code switch is set)

Instrument host board has two groups of four dial SW1, SW2 code switch.

SW1 used to set the time dynamic sampling instrument platform, SW2 used to set sampling instrument dynamic platform width (namely the maximum allowed fluctuation)

Dial the code switch your a right arrangement for 8421, dial the code switch on 4 corresponding binary right 8, 3 corresponding binary right 4, 2 corresponding bits 2, 1 corresponding right bits right 1, each group of each has 16 (0-15) code. Platform allows fluctuation representative number 1 degrees Celsius. Maximum allowable values 15 degrees Celsius,

Effective time value each number platform on behalf of 160 ms (for two samples values) the specific set parameters according to this unit by the customer specific process required, usually set parameters recommended in the list below.

Platform sampling time (SW!)                                                 Platform fuctation allow (SW2)            

4. Graduation Choose

Intelligent instrument is equipped with four points degree number(B/S/R/D or B/S/R/K)



On the main board inside machine with dividing, choose switch, in a printer interface of flank, use short way switch. The user can according to the circuit board with the dividing and corresponding short way to set by way, as below: