PCE INSTRUMENTS PCE-DBC 650 Dry Block Temperature Calibrator
Safety precautions
Safety Information
in this manual. Otherwise, the protective function of the instrument may be affected. See the warning and attention section for security information.
- The following definitions apply to “warning” and “attention”.
- “Warning” indicates conditions and actions that may harm the user.
- “Attention” indicates the conditions and actions that may damage the instrument.
Warning
To avoid personal injury, please follow these guidelines.
Summary
Do not use this instrument for other applications other than calibration. The instrument is designed for temperature calibration. Any other use may cause unpredictable damage to the user. Do not place the instrument under the cabinet or other objects. The top needs to be set aside for safe and easy insertion and removal of probes. Special attention should be paid to the use of this instrument at high temperatures for a long time. It is not recommended that no one should be monitored at high temperatures, and there may be safety problems. In addition to vertical placement, no other bearing operation instrument is allowed. Tilting the instrument or turning the instrument over can cause a fire.
Beware of burning
Never touch a thermostat at work. Never use an instrument near combustible materials. The use of this instrument at high temperatures requires attention. At a constant temperature above 30 ℃, the screen will display the high temperature warning icon and text. No matter whether the instrument is working or not, please do not remove the plugin to avoid personal injury or fire. Don’t shut down the instrument when the temperature is higher than 300 ℃. This can lead to dangerous situations. Choose the set point that is below 300 ℃, close the output, and let it cool before shutting down the instrument.
Brief Introduction
The Dry Block Temperature Calibrator is a convenient and efficient temperature calibration instrument., which is easy to use. It can be extensively applied in machinery, chemical industry, food, medicine, and other industries. At present, there is a problem of disadvantage of slow heating and slow temperature in the field of dry-type calibration furnaces in China, which will take a long time for users to calibrate. The latest generation of dry wellfurnacese is designed with the most advanced heating principle in the world, which has the characteristics of fast heating, fast temperate, and fast cooling, and it greatly improves the existing calibration efficiency. With the assistance of a precision sensor and a reliable temperature control circuit, our dry block temperature calibrator provides higher precision than others in China, and its technology has reached international standards.
Main Features
- Small volume, lightweight, easy to carry;
- Multiple types of inserted into the pipe and can meet different sizes, the number of sensor tests, and calibrations. And can be customized according to the special needs of users;
- Good level temperature field and vertical temperature field;
- The insert depth of sensors is deeper than other manufacturers.
- 5.0-inch TFT LCD touch-screen,16-bitt true color image, simple and intuitive to use;
- Fast cooling, easy setting, good temperature control stability;
- The soaking block can be replaced;
- With load short circuits, load circuits, sensor protection, and other functions.
- With functions of load short circuit, load cut-off circuit,t, and sensor protection.
Quick Reference
Display Interface
Display Interface: digital display mode and graphic display mode.
- Cold end Temperature: Refresh the cold end temperature of the thermocouple inside the dry furnace in real time
- High temperature warning: when the thermostat temperature is over 100 ℃， the flickering words “Note Hot” and the warning icon will be displayed.
- Real-time graph: digital display mode can be switched to real-time graph mode.
- Main output indicator light: indicates whether the heating module is working or not, gray means not working, red means working;
- Date and time: refresh the date and time in real-time.
- Start button: start instrument.
- Stop button: when the instrument is working(heating), press it and stop working.
- Menu button: enter into the menu interface.
- Temperature setting: enter into temperature setting interface, setting range: 100～1200℃
- Temperature measurement: Real-time refresh of the measured temperature of the thermocouple inside the dry body furnace, that is, the inner field temperature of the dry body furnace;
- Temperature fluctuation: refresh the measured temperature difference between the maximum and minimum in a period in real-time;
- Temperature control time: the time consumed in the current temperature control process is updated in real-time from the start of heating to the end of heating.
A complete graph can show a maximum of 600 temperature points which is refreshing with the frequency of 3 seconds/ time. The full-screen curve will be a scrolling display.
- Running time: refresh the period from starting the furnace in real-time.
- Digital Display Mode: switch from the graph display mode to digital display mode.
Start Dry Block Calibrator
Connect AC power
Use the power cord provided in the attachment to connect the dry furnace to the 220V AC power supply.
Turn on switch
Turn on the front power switch
If the equipment is not starting successfully, please check according to the following steps:
- Check whether the power line is in good connection
- If the instrument does not start still after checking, please check whether the power fuse has been fused, if necessary, please replace the fuse.
- If the instrument does not work after the above inspection, please contact the relevant department.
Ready to Use
Follow these steps to quickly use:
Set the target temperature
Click the setting temperature input box under the main interface, pop up the temperature window, enter the target temperature, click the “confirm” button, return to the main interface, and the temperature setting is successful.
Start heating
Click
to run the instrument. The button color will turn to orange
and the output indicator light will flash at a specific time interval.
Stop working
Click 
to stop working.
Operation Instructions
Menu Structure:
Menu
The menu interface is mainly divided into 8 functional modules, which are system setting, output parameter setting, temperature control setting, temperature correction, file recording, temperature control data, time setting, and system information.
System Setting
System Settings: general setting items, including Language, Scale, Resolution rate, Brightness, Temperature Upper and Lower Limit Alarm. Click
will restore the system settings to factory settings.
Language Setting
Support Chinese and English for option. Click the corresponding area on the screen to set.
Scale setting
Support degrees Celsius ℃ and Fahrenheit ℉ two system scales. Click the corresponding area on the screen to set it.
Resolution Rate Setting
Support 0.01 and 0.001 resolution rates for options. Click the corresponding area on the screen to see it.
Upper Limit Alarm
Used to set alarm upper limit. When the output is turned on, if the temperature of the thermostat block exceeds the alarm upper limit, the system will pop up the temperature alarm window, the buzzer will beep, and the output will be forcibly closed. The setting range is 90℃~1250℃, and cannot be upper than the upper limit alarm.
Lower Limit Alarm
Used to set alarm lower limit. When the output is turned on, if the temperature of the thermostat block is below the alarm lower limit, the system will give awarning information The setting range is 90℃~1250℃, and cannot be lower than the lower alarm limit.
Brightness setting
Percentage value setting, a total of 5 stalls, respectively 20%, 40%, 60%, 80%, and 100%, click the “+/-” button to adjust the brightness.
Parameter Output Settings
Parameter Output Setting: In the process of heating and cooling, PID control is adopted to control the temperature field of the body furnace. On this screen, users can customize PID output parameters to meet the on-site requirements. Before delivery, the system presets a set of PID parameters made by the manufacturer. Press the button to restore PID output parameters to factory defaults.
PID cycle setting
The adjustment operation period of the meter is in seconds and ranges from 1 to 100 The preset value is 3. This parameter has a great influence on the quality of regulation, and an appropriate value can solve the overshoot and oscillation phenomenon perfectly and obtain a better response speed. We suggest to modify the value based on the preset value.
PID proportional coefficient setting
The proportional coefficient P in PID, in %, ranges from 1 to 9999. The preset value is 50. The scale factor determines the size of the scale band. The smaller the proportional band is, the stronger the regulating effect is (equivalent to increasing the amplification coefficient); on the contrary, the larger the proportion band, the weaker the regulating effect. You are advised to change the value based on the preset value.
PID integral time setting
PID integral time I, unit: s, set range: 1~9999, system preset is 700. Integration time determines the intensity of integration. If the integration time is short, the integration effect is strong and the time to eliminate the static difference is short. However, if the integration time is too strong, the oscillation may occur when the temperature is stable. On the contrary, the integration effect is weak when the integration time is long, but it takes a long time to eliminate the static difference. We suggest modifying the value based on the preset value.
PID differential time setting
PID differential time D, unit: s, set range: 1~9999, system preset is 14. Differential time determines the intensity of differential action. The longer the differential time is, the stronger the differential effects. Being sensitive to temperature change can reduce temperature overshoot. However, too strong a differential effect may increase the temperature oscillation amplitude and lengthen the stability time.
Power limit
The unit is %. The setting range is from 1 to 100. The system preset value is 14. A larger value indicates a higher output power and faster heating rate, which may adversely affect the service lifetime of the heating module.
Note: click the
button after setting, and the setting value will be saved, otherwise it will be a failed action.
Temperature Control Setting
Temperature control setting: Used to determine whether the temperature control reaches the stable state. As shown in Figure 4.5, taking the parameters in the figure as an example, when the measured temperature reaches to setting temperature point within the deviation of ±0.50℃ and the fluctuation is less than or equal to ±0.20℃ for 3 minutes, the system will determine that the temperature control is stable. At this moment, the users can collect the measured data of the sensor under inspection. When the system determines that the temperature is stable, the buzzer rings, and the words “PV” on the main interface will be displayed in green. Users can also modify the temperature control parameters based on their requirements. The smaller the temperature fluctuation and target deviation are, the larger the stability time is, the more stringent the conditions for determining the temperature control stability are, and the longer the time is needed to achieve the stability. We suggest to modify the parameters based on the preset value.
Temperature Fluctuation
The measured temperature difference between the maximum and minimum within a period, is used to reflect the stability of the measurement temperature.
Target Deviation
The difference between the measured temperature and the set temperature reflects the deviation between the measured temperature and the target temperature.
Stability time
Time duration of temperature measurement between the defined temperature fluctuation and target deviation.
Note: click the button after setting, and the setting value will be saved, otherwise it will be field actions.
Note: The temperature stability criteria of the system are for reference only.
Temperature Calibration Mode
Temperature calibration selection: used to select temperature correction mode, including linear correction mode and point correction mode, as shown in Figure 4.6.
Liner Calibration
Linear correction ensures the accuracy and reliability of the data in the whole range by establishing multiple linear equations in two unknowns using calibration data. For example: already correct the points 300 ℃ and 400℃ in this mode, all temperature points between 300℃ and 400℃ are corrected.
Point Calibration
The point correction only corrects the error of the fixed set temperature point. The set value and correction value in the “fixed point correction table” can be changed. For example, if temperature points 300℃ and 400℃ are corrected in this mode, only two temperature points 300℃ and 400℃ are corrected, and other temperature points between 300℃ and 400℃ are not corrected.
Temperature Correction
Temperature correction: Used to correct the measured temperature value. When the temperature measurement accuracy of the main interface is poor, users can use the temperature correction interface to correct it. In the interface of temperature correction mode, press the key off 
or 
enter the interface of temperature correction.
The system provides 20 temperature points. When there is an error between the measured temperature and the real temperature, modify the correction value to correct the current measured temperature value.
Principle of modification: the user needs to provide a reference standard temperature sensor. When the temperature control reaches stability, the difference between the measured temperature of the dry body furnace and the real temperature measured by the standard sensor is added based on the original modified value corresponding to the set value. For example, the temperature of the dry furnace is set at 300℃, and when the temperature control reaches stability, the measured temperature on the main interface of the dry furnace is displayed as 299.97℃, and the real temperature measured by the standard sensor is 300.03℃, so the difference between the two is – 0.06℃. In the correction interface, the correction value in the blue box corresponding to the set value of 300℃ is currently 300.00℃, which is changed to 299.94℃. It means modify
to 
and click ..Then return to the main interface and wait for the temperature control to stabilize again. If the temperature measurement accuracy is still not ideal, it can be repaired again with the same method based on the correction value of 299.94℃ until the correction of temperature point 300℃ is completed.
Restore default: Added the option to restore the temperature value to the factory value state and restore it to the uncalibrated state. If modifying the temperature value by misoperation, users can restore the temperature value to the factory default value. If pressing has no effect, modify any temperature value and try again.
Note: click the button after setting, and the setting value will be saved, otherwise it will be a failed action.
File Recording
File recording list: File directory. A total of 10 data files can be saved. On the file list page, the name of each file, and the time and date of the last file modification are displayed. If the file is empty, nothing is displayed.
File recording: Provides users with the function of manually recording and saving data.
- File name: a maximum of 16 Characters (one Chinese character equals two English characters). The file name will be displayed in the file record list at the same time. The file name must be entered, otherwise save action is invalid;
- Delete and save: delete or save all input information in the file;
- Left and right page turning: a file can save up to 6 sensor information, turning the right page will display sensor 4 sensor 5, sensor 6;
- Up and down page turning: a sensor can save up to 10 temperature settings and measurement data;
- Sensor measurement data: click the corresponding area input;
- Sensor setting temperature: click the corresponding area input;
- Sensor property editing: Click this area to enter the sensor property editing interface, including the citing number, indexing number, and r and data unit.
- Number: a maximum of 4 English characters, click the corresponding area to input;
- Indexing sign: a maximum of 8 English characters, click the corresponding area to input;
- Data units: including ℃ to ℉, Ω, mV to ℉.
- Delete Deletes all information about the current sensor.
Temperature Control Data
Temperature control file list: file directory. A total of 50 data files can be saved. The name da and date of each file are displayed in the temperature control file list. If the file is empty, nothing is displayed.
Storage function: When the storage function is enabled, the system will pop up a dialog box to store temperature control data every time the heating operation is started. If storage is enabled, temperature control data is stored at a frequency of 3 seconds per time. If the storage function is disabled, no prompt is displayed (the configuration cannot be changed during the temperature control process).
Up and down page turning: you can view the first five or the last five temperature control data files;
Delete all: Press the “
” button to delete all 50 temperature control data files at a time. It takes a long time, please wait patiently.
Temperature control file: Displays the file name, file number, date and time, temperature setting, number of temperature points, total temperature control time, and time when the temperature control reaches stability. If the file is empty, nothing is displayed.
Delete files: Deletes one current file. Other files are not affected. Empty files will give no response when clicking.
Graph viewing: File for empty point press no response; the date of temperature control in the files is displayed as a curve graph, that is, historical curves. Empty files will give no response when clicking.
In this interface, a graph screen can display a maximum of 600 temperature control data. Based on the storage frequency of temperature control data of 3 seconds per time, a graph screen takes 0.5 hours. Users can view the following temperature control data by turning to the right. When temperature control reaches stability, the current measured temperature will be displayed in green.
Time Setting
Time setting: Used to modify the time and date, and refresh in the upper right corner of the main interface in real time.
Modify the time parameter through the ” 
” and ” 
” buttons in the corresponding item.
Note: click the button after setting, and the setting value will be saved, otherwise it will be a failed action.
System Information
System information: display the basic information of the furnace, including serial number, software version number, file function, and communication function.
Technical Index
Note: This technical index shall be effective under the environment of 23±5℃ and the product shall be stable for 10 minutes after reaching the set temperature:
- Temperature range：300～1200℃；
- Resolution rate：0.001℃；
- Scale unit：℃、℉；
- Accuracy：0.1%；
- Temperature stability：≤±0.2℃/15 mins；
- Horizontal temperature field ：≤±0.25℃（with thermostat equipped）；
- Vertical temperature field： The deviation in the range of 10mm calculated from the bottom of the hole of the soaking block is 1℃
- Insert depth：135mm；
- Heating speed ：25℃~100℃：10mins；100℃~600℃：15mins； 600℃~800℃：20mins；800℃~1200℃：30mins；
- Cooling speed：1200℃~800℃：25mins；800℃~600℃：15mins； 600℃~300℃：60mins；300℃~50℃：180mins；
- Numbers of inserted sensors and hole size: 4 holes(standard), φ6、φ8、φ10、φ12mm.
Note: the outer diameter of the soaking zone is 39mm, and the insertion depth and outer diameter of the sensor should be specified.
General technical specifications
- Environment temperature ranges：0~50℃（32-122℉）；
- Environmental humidity ranges：0%-90%（No condensation）；
- Dimension：250mm×150mm×310mm（L×W×H）
- Net Weight：11kg；
- Working voltage：220V.AC±10%,可选配 110V.AC±10%，45-65Hz；
- Power：3000W。
Maintenance
Replace fuse tube
The fuse tube is installed under the power socket switch.
Specification of fuse tube:
20A L 250V the type of fuse Φ5x20mm
Operation steps:
- Turn off the power and unplug the power cord.
- Find the location of the fuse and remove the blown fuse according to the device.
- Replace the new fuse tube.
Documents / Resources
 |
PCE INSTRUMENTS PCE-DBC 650 Dry Block Temperature Calibrator [pdf] Instruction Manual PCE-DBC 650 Dry Block Temperature Calibrator, PCE-DBC 650, Dry Block Temperature Calibrator, Block Temperature Calibrator, Temperature Calibrator, Calibrator |
