Nanjing Smelting Temperature Measuring Instrument Company

one Overview

This thermometer operates at high speed16Embedded microprocessor as the core. Automatic calibration circuit is adopted, and precise temperature sensors are used to measure the cold end temperature, which can be calibrated by software. Adopting high precision in data collectionADConversion chip, with a sampling period of20msIt has strong anti-interference properties against spatial power frequency.

thisthermometercanApplicable toThe measurement of solution temperature in industries such as steelmaking, copper smelting, and cast iron can also measure slag temperature.

two Functional Description

At the bottomAfter the measurement is completed, the buzzer prompts

At the bottomBattery voltage detection, battery level display

At the bottomFour highlighted charactersLEDDisplay, word height15mm

three Technical Specifications

four panelExplanation and Operation

There are two measurement indicator lights on the panel: ready and finished; oneLEDdisplay;

There are three buttons on the internal circuit boardK1TheK2TheK3For specific operations of modifying operating parameters (usually without adjustment), please refer to section six.

Just turned on3The percentage of remaining battery power and the current thermocouple scale displayed on the screen within seconds. When the battery level displays below20To avoid affecting the measurement, the battery should be replaced. Instructions for the current use of thermocouple indexing numbers:SType display1；BType display2；RType display3；WRe3/25display4.

When there is no thermocouple input, the instrument will automatically shut down after two minutes of idle time, and automatically save the temperature value displayed when shutting down. After turning on, it will automatically display the temperature value when shutting down.

five Indicator lights and buzzer alarm instructions

When there is no measurement or thermocouple inserted, the thermometer displaysThe three indicator lights are not on. After inserting the thermocouple, the green light is on. Insert the thermocouple into the molten steel and the temperature of the molten steel exceeds1000At ℃, the yellow light will turn on, and when the measurement is successful, the red light will turn on and the buzzer will sound; If the measurement fails, all three lights will be on.

After the test is completed, the test results will be automatically saved and the buzzer will sound3

second.

six Specific operation instructions for setting keys

There is a two digit dial on the internal circuit board used to set the thermocouple index number. The specific setting instructions are as follows:

1=OFF，2=OFFThe division number isS

1=ON，2=OFFThe division number isB

1=OFF，2=ONThe division number isR

1=ON，2=ONThe division number isW

There are three more keys on the internal boardK1TheK2andK3Used to set operating parameters.K1The key is used to select the parameter item to be set (specific item numbers are shown in the table below),K2Used to select the bit to be set,K3Used to input specific parameter values.

function item1Measurement method setting,0For continuity;1For the sake of speed,Factory settings are1.Only set items in fast measurement mode3and4Only effective.

function item2Reserved, with no specific purpose

function item3Temperature platform fluctuation value. Scope can be set1～16℃，Factory settings are6

function item4Duration of temperature plateau. Scope can be set1～16

express1/6～16/6In seconds,Factory settings are3

function item5Cold end temperature correction value.with50 is the benchmark, greater than 50 is an increase, and less than 50 is a decrease,Factory settings are50，For example, the current actual temperature of the cold end is16℃, but the thermometer shows19℃, set the setting item to47The thermometer displays16℃ has passed; If the thermometer displays as10, set the setting item to the appropriate position56The thermometer displays16It's already ℃.

function item6：SType index correction value.with50 is the benchmark, greater than 50 is an increase, and less than 50 is a decrease,Factory settings are50

function item7：BType index correction value.with50 is the benchmark, greater than 50 is an increase, and less than 50 is a decrease,Factory settings are50

functionitem8: R-type index correction value. Based on 50, if it is greater than 50, it increases; if it is less than 50, it decreases,Factory settings are50

function item9：WRe3/25Type index correction value.withBased on 50

Accurate, greater than50 is an increase, and less than 50 is a decrease,Factory settings are50

function item10Manufacturer debugging trial, users should not make arbitrary modifications,During normal operation, it must be set to0

function item11：Save the enable item, which is0All functional modifications cannot be saved. This item is1Only then can it be saved. When turned on, this item is0.This functionality is set to avoid human error in modifying operating parameters.

If the thermocouple has already been inserted and is in the preparation or measurement state, the button will not work. Only when the thermocouple is not inserted can the button be used for setting operations. First pressK1Press the key to enter the setting state. In the setting state, the leftmost digital tube displays the setting number, and the two digital tubes on the right display the setting value，The current editing position is flashing in the set value, pressK3Enter the size of the value to be set, pressK2The key can change the editing position. After setting a setting item, pressK1Enter the next set number.

The four characters displayed on the panel, with the leftmost two characters being the setting item number. The second character on the left is not displayed, and the third and fourth characters on the left are set values.

In the set state, ifAfter 10 seconds of no button operation, the system returns to normal operation.

seven Fault prompt explanation

When in an abnormal operating state, the thermometer will prompt the current fault type in the form of a number. The specific fault number is as follows:

1Cold end temperature exceeds the range55℃

2Thermocouple potential exceeds the range

If the measurement fails, display8888.