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Summary of Contents for CASTLE 6224
- Page 1 TYPE 6224 Integrating Precision Sound Level Meter Instruction Manual (Version 1.6C) www.castlegroup.co.uk...
- Page 2 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.
- Page 3 • Do not try to disassemble the instrument or attempt any repairs as this will invalidate your warranty. Take a note of the condition of the instrument and contact your authorised Castle service station. • To ensure continued precision performance of your instrument have it checked and serviced at regular intervals.
- Page 4 The Castle 6224 has an easy to follow menu system and clearly marked keys, all designed to make the meter simple-to-use. The back-lit LCD display is also very clear with large figures and a quasi-analogue display bar to show the changes in sound level as they happen.
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Page 5: Table Of Contents
Contents Section 1 Setting up Locations and their functions....................5 Battery installation..........................6 AC power adaptor ..........................6 LCD adjustment..........................7 Calendar adjustment ........................8 LCD backlight ............................9 Section 2 Basic Operation Changing Display mode ......................10 Operation of panel switches and their function ............13 Calibration ............................ -
Page 6: Setting Up
Section 1 Setting up １．Locations and their functions Microphone Preamplifier Threaded retaining ring Front panel Tripod Bush Battery cover Display Side panel Wrist Strap Bush Side panel Calibration potentiometer AC OUT connector DC OUT connector POWER switch AC power adaptor connector External Input/Output connector Page 5... -
Page 7: Battery Installation
２．Battery installation When the display indicates low battery, install new batteries. For long-term measurement, install new batteries in advance. The following diagrams indicate the battery condition. Full Replace batteries. To install new batteries: １）Turn off the POWER switch. ２）Push the Battery cover gently where it says ‘OPEN’ and slide it to the right. ３）Insert the new batteries according to the diagram inside the battery compartment and replace the cover. -
Page 8: Lcd Adjustment
４．LCD adjustment The LCD contrast can be adjusted when the batteries are low or when new batteries are installed. The procedure is as follows. Menu key Cursor key Set key View key １） When you press the Menu key, the following screen appears. <menu>... -
Page 9: Calendar Adjustment
５．Calendar adjustment To adjust the calendar (time), operate as follows. The calendar can be adjusted in the Menu mode in the same way as the LCD adjustment. １）When you press the Menu key, the Menu key following screen appears. <menu> Cursor key Meas Mode : Manu... -
Page 10: Lcd Backlight
６．LCD backlight Your Castle 6224 is equipped with a backlight on the display. Light key １） Press the Light key and the LCD backlight illuminates. ２）Pressing the Light key again turns the backlight off. The backlight automatically turns off after approximately 30 seconds. -
Page 11: Basic Operation
Section 2 Basic Operation １．Changing The Display mode １－１ How to change the display mode The display has three modes (Normal, Magnified and List Mode). They can be changed with the View key. The View key can be used to go back to this display mode from any other menu screen. View Normal Display Mode 130.0... - Page 12 １－２ Normal Display Mode ：Operation indicator blinking：in operation (by pressing Start key) ■ ：Pause (by pressing Pause key). When Data deletion mode is set, this symbol does not appear. E：Data deletion mode E appears when Data delet was selected in Menu. When Meas Time is 1, 3 or 5s, E does not appear.
- Page 13 １－３ Magnified Display Mode In magnified display mode, the bar graph does not appear and the numerical characters are magnified in the digital display. In the magnified display mode it is possible to change between A-weighted sound pressure level, sound pressure level, equivalent continuous A-weighted sound pressure level, or percentile level measurement using the Mode key.
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Page 14: Changing Display Mode
２．Operation of panel switches and their function Cursor key • ：LCD backlight key Light See “LCD adjustment”. • ：Menu key Menu See “Menu“. • ：Set key Saves the settings of the menu screen or resets Max Hold value. • ：is used to move a cursor to select an item. Cursor key •... - Page 15 2) Using the internal calibration mode. The internal calibration should only be used as a general system check e.g. for a broken or damaged microphone or for electrical calibration by a calibration house, it should not be used for field calibration. To maintain Class 1 accuracy the Castle GA607 must be used. ３－1...
- Page 16 ３－2 Calibration using internal calibration mode The instrument can be calibrated using the internal generator (1kHz, sine wave) Cal key Range key １）Turn on the POWER switch. ２）Press the Cal key. ３）Press the Range key, and choose ‘100dB’ using the cursor keys and press the Range key again to confirm.
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Page 17: Measuring Procedure
Section 3 Measuring Procedure １． A-weighted sound pressure level (L ) measurement Frequency weighting key (A, C or Flat) Time weighting key (Fast, Slow or Imp) Range key Measurement mode key ＜ Parameter setting ＞ ：Select a range where the Bar display indicates approximately 2/3 of Range key the full scale. -
Page 18: Sound Pressure Level
２．Sound pressure level (L ) measurement (Sound pressure level measurements except A-weighted sound pressure level.) Frequency weighting key (A, C or Flat) Time weighting key (Fast, Slow or Imp) Range key Measurement mode key ＜ Parameter setting ＞ ：Select a range where the Bar display indicates approximately 2/3 of Range key the full scale. -
Page 19: Measurement
３．Equivalent continuous A-weighted sound pressure level (L eq) measurement Frequency weighting key (A , C or Flat) Time weighting key Measurement time (Fast, Slow or Imp) Range key Measurement mode key ＜ Parameter setting ＞ ：Select a range where the Bar display indicates approximately 2/3 of Range key the full scale. -
Page 20: Single Event Sound Exposure Level
４．Single event sound exposure level (L e) and Percentile level (Lx) measurement When measuring L eq or L e, the following automatically starts by pressing the Start key. • ：L Equivalent continuous A-weighted sound pressure level • ：L Single event sound exposure level •... -
Page 21: Max Hold Measurement
５．Max Hold Measurement Set key Measurement mode key ＜ Parameter settings ＞ ： MH Measurement mode key ＜ Display ＞ Indicates Measurement mode 66.0 00h 000h00m00s FAST Digital display Bar display Manu • After pressing the Set key, the digital display holds its maximum value and is only updated when a new maximum value is measured. -
Page 22: C-Weighted Waveform Peak Hold Measurement (Lcpeak )
6. C-weighted waveform peak hold measurement (L CPeak Lcpeak is measured on “Peak measurement” setting. Change the basic setting from Manu (default) to Peak. (1) Press Menu key once to call <Menu>1/2 screen and check the cursor is on the top line of “Meas Mode”. -
Page 23: How To Use Menu
Section 4 Menu １．How to use Menu To open the Menu display press the Menu key. Return to the measurement display by pressing the View key. Menu key Set key Cursor key Every time the Menu key is pressed, <menu> and <Mode Set> pages are alternated. Select an item with key and complete the selection with key, then change the... - Page 24 ２．Menu (1/2) <menu> Page of Menu Meas Mode : Manu Interval : Single : OFF Data delet : OFF LCD cont : ***** date y/m/d : 00/01/01 time : 00:00:00 Items Initial value Explanation • ：Measurement mode Meas Mode : Manu Manu : Normal measurement mode •...
- Page 25 ３．Mode Set (2/2) <Mode Set> Range : 130dB Dyn char : FAST Freq corr Meas time : 1s View : L05 baud rate : 9600 • ：Shows a range value set with the Range key. Range : 130dB • ：FAST , SLOW or Imp Dyn char : FAST Shows Time weighting set with the F ・S ・I m p key.
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Page 26: Ac, Dc Output
Section 5 AC, DC Output １．AC Output The AC Output is the frequency-weighted signal. Output: 1Vrms (Full Scale), Output impedance: 600Ω, Load impedance > 10kΩ ２．DC Output The DC Output is a frequency weighted, root mean squared, and then logarithmically converted signal. Output: 2.5V (Full Scale), 0.25V/10dB, Output impedance: 50Ω, Load impedance >... -
Page 27: Section 6 Printing
３） Ensure the Baud Rate is set the same on the 6224 as the printer (See section 4, No 3. Mode Set 2/2 on page 24). See separate Printer manual for setting the baud rate of the printer. -
Page 28: Section 7 Data Transfer To A Personal Computer
Section 7 Data Transfer to a Personal Computer After or during measurement, the data can be transferred to a personal computer. 1) Data transfer after measurement <menu> Meas Mode :Manu Interval :Repeat Press Menu Data delet :Off LCD cont :**** date y/m/d :00/11/20 Time... - Page 29 2) Data transfer during measurement Data can be transferred to a PC during measurement in real-time by taking the following steps. Please note that in this mode the data can not be saved to memory in the instrument and should instead be saved on the PC as described later in this manual.
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Page 30: Ac Output
Section 8 Specifications Model Castle 6224 Description Precision Integrating Sound Level Meter Standards Conforms with IEC 61672-1:2002, Class 1, IEC 60651:1979 and IEC 60804:2000 Type 1 Measuring ranges 27 – 130dB(A), 38 – 130dB(C), 41 – 130dB(F) Frequency range 20Hz – 20kHz Microphone 7146N 1/2”... -
Page 31: Pin Connections And How To Connect The Extension Cable
Pin Connections and How to Connect the Extension cable Detach the microphone from the body of the meter. Microphone Turn here to remove the microphone Part A Pin connections of Part A Attach the microphone to the female connector of the extension cable. Plug the male connector of the extension cable into the connector on the body of the instrument.
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