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Related Manuals for Castle group GA213
Summary of Contents for Castle group GA213
- Page 1 Notes:...
- Page 2 This manual is designed to show you the operation of the goods you be returned to Castle Group Ltd, in its original packaging, or to an authorised have purchased and a very brief insight into acoustics itself. If you would agent.
- Page 3 Case Reflections of the popular range using the Aco 7052 microphone: PRECAUTIONS Stalk length 75mm from front of microphone grid to top of case body. • Only operate the instruments as described in this manual. • Frequency (Hz) Case Effect (dB) Frequency (Hz) Case Effect (dB) These are precision instruments, protect from shocks and vibrations.
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Page 4: Table Of Contents
Effect of Temperature: Accuracy better than ± 0.5 dB over the range -10 to +50°C when corrected as indi- CONTENTS cated here: TITLE PAGE NO The temperature correction to be applied for GA601 / GA607 and microphone: KEYPAD LAYOUT Corrected level = Actual level – 0.05(t-20) Where t is the temperature in °C INTRODUCTION USING THE MANUAL... -
Page 5: Keypad Layout
Crest factor capability: KEYPAD LAYOUT 13 dB at full scale deflection Signal to Noise ratio: > 5 dB at bottom of scale EMC Performance: Radiated emissions to EN 50 081-2 No significant emissions from the instrument Calibration Reference Conditions: 23°C air temperature 50% relative humidity 101.325 kPa atmospheric pressure 94.0 dB at 1kHz nominal reference level... -
Page 6: Introduction
65dB GA256 67dB The GA213, GA215 and GA256 are part of Castle’s “Pocket Range” of meters and have been designed to surpass the requirements of the new international Class 2 sound level meter standards. They may be used in Reference Level:... -
Page 7: Battery Installation
RMS Frequency Weighting: To prepare the equipment for use a heavy duty alkaline battery type 6LR61 should be fitted, such as a Procell/Duracell MN1604, Ever Ready 6LF22 Gold GA213 A and C weightings according to IEC 61672-1 Class 2, Seal, or equivalent. -
Page 8: Switching On And Off
LP (or Lex on GA256) in PAUSED mode using the settings that were Instrument Standards: last selected. GA213 IEC 61672-1 : 2002 Class 2 To switch off, press and release the POWER button once and the display goes IEC 60651 : 2001 Type 2 blank. -
Page 9: Calibration
SETTLING while calibrating to the chosen level. When calibrated the display will show COMPLETE. Press OK and the display will return to LP for the GA213/215 and DOSE for the GA256. If the input level is not within +/- 3dB of the chosen reference level then the display will show CAL.FAIL. -
Page 10: Displaying Parameters
90/3, 85/3, 90/5, or 85/5. > Note: The symbol indicates the current selection as you move around the criterion/exchange options. GA213 GA215 GA256 Lp (SPL) Lp (SPL) Elapsed Time... - Page 11 DISPLAY DESCRIPTION INSTRUMENT CHANGING RANGE GA213/215 93.7dBC Level Pressure (Lp) GA213/215 A range change can be performed by the use of the UP/DOWN arrow buttons LEQ 93.7 Displays the LEQ GA215 while in any of the DISPLAY modes (instrument displaying LP dBA etc).
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Page 12: Locking The Instrument
LOCKING THE INSTRUMENT RESETTING PARAMETERS The LOCK feature is used to lock the instrument keypad. All functions are therefore disabled including the POWER button. The function is often used to avoid inadvertent operation or tampering while the instrument is being used. The CLEAR button is used to reset data.