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Thank you for buying a Castle product, I am sure you will find both the 

goods and the service to be of the highest quality but if not, then please 

feel free to write to me personally and I will ensure that your needs are 

dealt with immediately. 

 

This manual is designed to show you the operation of the goods you 

have purchased and a very brief insight into acoustics itself.  If you would 

like to become a competent person in the eyes of the law, then you may 

like to know more about our Competent persons training course for the 

Noise at Work Regulations. 

  

It is my intention for Castle Group Ltd to provide a complete range of 

Noise and Vibration products and Services of the highest standard.  If 

you would like to know more about any of our other products and 

services then please complete the reply paid card and return it to us for 

prompt action or telephone on +44(0)1723 584250. 

 

Simon Bull 

 

 
 
 
 
 

 

 

 

Sales and Marketing Director 

19 

Warranty and After Sales Service 

 

Castle Group Ltd design and manufacture precision instruments, which if treated 

with reasonable care and attention should provide many years of trouble free 

service. 

 

In the event of a fault occurring, during the warranty period, the instrument should 

be returned to Castle Group Ltd, in its original packaging, or to an authorised 

agent.  Please enclose a clear description of the fault or symptom. 

 

Details of the warranty cover are available from Castle Group Ltd or an authorised 

agent. 

 

All instruments are designed to meet rigid British and International        

Standards.  An annual calibration is recommended to ensure that these high 

standards are maintained.  This is particularly important for cases in which 

instrument readings are to be used in litigation or compliance work. 

 

For warranty and service return to: 

 

                        The Service Department 

                        Castle Group Ltd 

                        Salter Road 

                        Cayton Low Road Industrial Estate 

                        Scarborough 

                        North Yorkshire 

                        YO11 3UZ 

 

 

                        Telephone                               +44 (0)1723  584250       

                        Fax                                          +44 (0)1723  583728 

                        web                                         www.castlegroup.co.uk 

                                                             

Any misuse or unauthorised repairs will invalidate the warranty. 

 
Damage caused by faulty or leaking batteries is not covered by the warranty

Summary of Contents for GA213

Page 1: ...Notes ...

Page 2: ... Service Castle Group Ltd design and manufacture precision instruments which if treated with reasonable care and attention should provide many years of trouble free service In the event of a fault occurring during the warranty period the instrument should be returned to Castle Group Ltd in its original packaging or to an authorised agent Please enclose a clear description of the fault or symptom D...

Page 3: ...r the operation of the unit are as follows Temperature 10 C to 50 C Relative Humidity 30 to 90 Protect the unit from dust water extremes of temperature and humidity direct sunlight and air with a high salt or sulphur content Always turn the unit off after use Remove the battery from the instrument if it is not to be used for an extended period several days Do not use any solvents or cleaning agent...

Page 4: ...r GA601 GA607 and microphone Corrected level Actual level 0 05 t 20 Where t is the temperature in C Effects of Humidity Less than 0 5 dB over the range 25 to 90 relative humidity provided there is no Condensation relative to the value at 50 relative humidity and 40 C Storage range 0 to 90 relative humidity in the absence of condensation Vibration Effect From 20Hz to 1kHz at 1ms 2 no noticeable eff...

Page 5: ...essure 94 0 dB at 1kHz nominal reference level 55 120dB reference range Reference direction of incidence for all microphones perpendicular to the front face diaphragm surface of the microphone Detector Characteristics RMS and Peak Warm up time 10 minutes Operating range 10 C to 50 C Warning DO NOT subject the instrument to temperatures greater than 70 C or less than 20 C for any length of time 16 ...

Page 6: ...s press that button E g OK means press the OK button Since this manual covers the operating instructions for three instruments the shaded areas of the title serves to inform the user which functions are present on your instrument E g The following title informs you that this function is only applicable to the GA213 215 2 CHANGING RANGE GA213 215 Linear Operating Range GA213 GA215 65dB GA256 67dB R...

Page 7: ...ment for use a heavy duty alkaline battery type 6LR61 should be fitted such as a Procell Duracell MN1604 Ever Ready 6LF22 Gold Seal or equivalent The battery door is located on the bottom left hand side of the instrument Open the battery door cover by sliding the cover downward towards the bottom of the instrument The cover will now swing open exposing the battery compartment Insert the battery ob...

Page 8: ...configurations Press STATUS BAT 80 Battery status Press STATUS dBA SLOW Frequency Time weighting selected Press STATUS VER 1 0 Firmware version number Press STATUS WWW Cast website scrolling Press STATUS RUNNING SWITCHING ON AND OFF All 4 ACTIVATING BUTTONS All 13 The individual characteristic applies to each instrument unless specifically worded otherwise Instrument Standards GA213 IEC 61672 1 20...

Page 9: ...04dB relative to 20µPa pressure at a frequency of 1kHz Turn the instrument on by pressing the POWER button Press STATUS to check the battery condition Replace the battery if the indication is low Press MENU CAL OK Press OK and the instrument will now display the previous calibration level e g 94 0 The calibration will be performed at the selected level e g 94 0dB but may be changed in 0 1 dB steps...

Page 10: ...PLAY button The table on the following page is a breakdown of the display parameters and is accompanied by an explanation of each one DISPLAYING PARAMETERS All GA213 GA215 GA256 Lp SPL Lp SPL Lex Lmx Leq Plx Pmx Elapsed Time DO Elapsed Time Lmx Pr Overload if triggered Pmx Mr Lex Elapsed Time Le Pmx Overload if triggered Psq Overload if triggered 6 The Criterion and Exchange level can be changed b...

Page 11: ...ailable weighting choices A SLOW A FAST C SLOW or C FAST Note The symbol indicates the current selection as you move around the weighting options CHANGING RANGE GA213 215 10 FREQUENCY TIME WEIGHTING GA213 215 DISPLAY DESCRIPTION INSTRUMENT 93 7dBC Level Pressure Lp GA213 215 LEQ 93 7 Displays the LEQ GA215 00 01 33 Run time duration All Lmx 97 3 Maximum Lp GA215 Pmx 98 8 Maximum Peak GA213 256 DO ...

Page 12: ... button to return to LP mode Press PAUSE PLAY once PAUSED All functions can be held so that they do not update by pressing the PAUSE button Once PAUSED the display may be read as normal allowing the user to take note of any required readings For normal operation of the instrument to continue press the PAUSE PLAY button once more and the instrument will briefly show PAUSED before returning to the c...

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