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CG204-EU-EN  V2.1   3/11 

 Programming Menu 

 

The meter can be configured and calibrated through simple button presses in the 
programming menu. Press the MENU button to access the menu and refer to the menu 
‘tree’ below. The menu uses UP/DOWN, SELECT, BACK, & ESC presses for navigation 
and selection. In the table below the factory default settings are in bold with an asterisk. 
Each parameter is explained in detail in the subsequent sections. 

Top level 

Sub level 1 

Sub level 2 

Notes 

AVG* 

 

Average of a series of readings 

MIN 

 

Lowest of a series of readings 

MAX 

 

Highest of a series of readings 

NO 

 

Number of sampled readings 

STATISTICAL VIEW 

SDEV 

 

Standard deviation of a series 

Single* 

One reading at a time 

Measure mode 

Continuous Continuous 

measurements 

Direct* 

Readings are not stored in groups 

Working mode 

Group 1…4 

Store readings in groups 

Auto* 

Meter automatically selects mode 

Fe 

Ferrous measurement mode 

Probe used 

No Fe 

Non-ferrous measurement mode 

μ

m* 

Micrometers 

mils 

Mils = mm * 2.54 / 100 

Unit settings 

mm Millimeters 

ON* 

Enables backlight operation 

Backlight 

OFF Disables 

backlight 

operation 

AVG* 

Average of a series of readings 

MAX 

Lowest of a series of readings 

MIN 

Highest of a series of readings 

LCD Statistics 

SDEV 

Standard deviation of a series 

Enable* 

Allows auto power off to operate 

OPTIONS 

Auto Power OFF 

Disable 

Defeats the auto power off feature 

High Limit 

High Alarm alerts user when reached 

Limit settings 

Low Limit 

Low Alarm alerts user when reached 

LIMIT 

Delete Limits 

 

Clear the alarm limit values 

Current Data 

 

Delete current data 

All Data 

 

Delete all stored data 

DELETE 

Group Data 

 

Delete data stored data plus alarm 
and calibration data 

MEASUREMENT 

VIEW 

 

 

View stored data in all groups 

Enable 

 

Allow calibration access 

Disable 

 

Lock out the calibration mode 

Delete Zero N 

 

Clear the zero cal. data (non-ferrous) 

CALIBRATION 

Delete Zero F 

 

Clear the zero cal. data (ferrous) 

NOTE:

 Disable the Auto Power OFF feature before lengthy programming to avoid 

inconvenient automatic power down while programming. 

 

www.burntec.com

Summary of Contents for CG204

Page 1: ...User s Guide Extech CG204 Coating Thickness Tester www burntec com ...

Page 2: ...2 Measurement probe 3 Backlit LCD display 4 SET OK YES MENU SELECT button 5 UP LEFT ARROW button 6 Power ON OFF button 7 CANCEL ESC NO BACK button menu mode and Backlight ON OFF normal mode 8 DOWN ARROW RIGHT button 9 ZERO calibration button Note Battery compartment on rear of meter Display Icon Description NFe Non ferrous metals Fe Ferrous metals AUTO Automatic substrate recognition F or N Calibr...

Page 3: ... the LCD AVG 250μm running average on the lower right DIR DIR mode of operation on the upper left Fe Ferrous substrate on the upper right of the LCD Experiment with the remaining reference films and the substrate before using the meter professionally Automatic Power OFF In order to conserve battery life the meter will automatically turn off after approximately 3 minutes To defeat this feature use ...

Page 4: ...No Fe Non ferrous measurement mode μm Micrometers mils Mils mm 2 54 100 Unit settings mm Millimeters ON Enables backlight operation Backlight OFF Disables backlight operation AVG Average of a series of readings MAX Lowest of a series of readings MIN Highest of a series of readings LCD Statistics SDEV Standard deviation of a series Enable Allows auto power off to operate OPTIONS Auto Power OFF Disa...

Page 5: ...OUS measurement mode the meter displays a running average of readings as they are taken Note that the audible measurement beep is not active in this mode In the SINGLE measurement mode measurements are taken one at a time Single mode measurement readings are accompanied by an audible tone b Working Modes Select DIRECT or GROUP 1 2 3 or 4 under WORKING MODES in the OPTIONS Menu using the arrow butt...

Page 6: ...n turn the light on or off using the backlight button CANCEL button f LCD Statistics Select AVERAGE MINIMUM MAXIMUM or SDEV Standard Deviation under LCD STATISTICS in the OPTIONS Menu using the arrow buttons and the SELECT soft key This selection determines which statistic is shown as default on the LCD display g Auto Power OFF Select ENABLE or DISABLE under AUTO POWER OFF in the OPTIONS Menu usin...

Page 7: ...to open the MEASUREMENT VIEW parameter 4 User the ARROW buttons to scroll through the stored readings CALIBRATION Menu The Calibration menu allows the user to enable disable the calibration utility The Calibration menu also allows the user to delete Zero calibration data for both ferrous Zero F and non ferrous Zero N modes 1 Press the MENU button to access the programming menu 2 User the DOWN ARRO...

Page 8: ...urvature radius Substrate material properties Substrate thickness Size of measurement area The point at which the calibration is made on the calibration sample must always be identical with the point of measurement on the product itself especially in the case of corners and edges of small parts To achieve the highest measurement accuracy perform several calibrations in succession for zero values a...

Page 9: ... off the substrate d Press MENU and then scroll down to Calibration e Press Select to highlight the Enable function and then press Select f Press Esc and the meter will enter the calibration mode g Adjust the reading to match the known value of the reference film using the and buttons h Turn the meter OFF to exit and save the calibration data 3 The meter is now calibrated to the base material and ...

Page 10: ...ice to be tested 2 Take approx 10 readings on the uncoated shot blasted sample to produce the mean value Xo 3 Take an additional 10 readings on the coated shot blasted test sample to produce the mean value Xm 4 The difference between the two mean values is the mean coating thickness Xeff over the peaks The greater standard deviation S of the two values Xm and Xo should also be taken into considera...

Page 11: ...es how the sample value is distributed around the sample mean The standard deviation of a set of numbers is the root mean square of the variance S 2 The variance of a list is the square of the standard deviation of the list that is the average of the squares of the deviations of the numbers in the list from their mean divided by the number of readings 1 Variance S 2 1 2 n x x Standard deviation S ...

Page 12: ...y wipe the meter housing with a damp cloth and mild detergent do not use abra sives or solvents If the meter is not to be used for 60 days or more remove the batteries and store them separately Battery Replacement Installation instructions 1 Remove the Phillips head screw that secures the rear battery door 2 Open the battery compartment 3 Replace install the two 1 5V AAA batteries 4 Secure the bat...

Page 13: ...ure radius 1 5mm 3mm Diameter of Min area 7mm 5mm Basic critical thickness 0 5mm 0 3mm Industrial standards Conforms to GB T 4956 1985 GB T 4957 1985 JB T 8393 1996 JJG 889 95 and JJG 818 93 Operating Temperature 0 C 40 C 32 F 104 F Operating Relative Humidity R H 20 90 Relative Humidity Dimensions 110 x 50 x 23mm 4 3 x 2 0 x 1 0 Weight 100g 3 9 oz 1 Accuracy statement applies on a flat surface wi...

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