SKC AcoustiCHEK 703-001 User manual

AcoustiCHEK Calibrator Quick Guide
Class I and" Cat. Nos. 703-001 and 703-002
The AcoustiCHEK Calibrator is designed for use with the following SKC noise instruments:
• NoiseCHEK Personal Noise Dosimeter Cat. No. 701-001
• SoundCHEK Essential Sound Level Meter Cat. No. 702-002
• SoundCHEK Connect Sound Level Meter Cat. Nos. 702-009, 702-010, 702-011, and 702-012
Operating the Calibrator (Figure 1)
Turn on: Press the Power key.
Turn off: Press and hold the Power key for 3 seconds and
release. Note: If the calibrator does not detect amicrophone
within 10 seconds, it will shut down automatically.
Select output level (94,104, or 114 dB): Press the Level key
to move from one level to the next; the corresponding LED will
light up and the tone emitted will change accordingly. The
calibrator must be attached to and able to detect the
microphone to properly indicate selected level; otherwise, all
three LEOs will flash, and the calibrator will shut down in
10 seconds. Note: When AcoustiCHEK is turned off, it
remembers the selected output level and automatically pre-selects it
when turned on again.
Power key
Level key
"Battery door
(on back)
Figure 1. Calibrator Overview
Note: A low battery warning will occur when batteries are depleted: all three Level LEOs blink slowly.
Performing Calibration
• For accurate calibration, ensure that the calibration level is at least 20 dB greater than the
ambient noise.
• AcoustiCHEK does not require atmospheric pressure correction over the pressure range
of 650 to 1080 mbar.
• Output level automatically compensates for changes in atmospheric pressure.
1. Gently insert the microphone into the calibration aperture (Figure 1) all the way
up to the stop inside the cavity. See calibrator attached to noise dosimeter at
right. Note: Ensure that microphone and aperture are aligned during insertion to
avoid damaging the microphone.
2. Turn on the calibrator. Note: If the calibrator does not detect amicrophone
because it is not inserted or is inserted incorrectly, all Level LEOs will flash
and the calibrator will shut down automatically.
3. Ensure that the correct calibrator output level is selected (see Operating the
Calibrator) and allow both the sound level meter and calibrator to stabilize for
approximately 3 seconds before performing calibration from the sound level meter.
4. When calibration is complete, gently remove the microphone from the calibrator
cavity. The calibrator will turn off automatically OR you can press and hold the Power
key for 3 seconds and release.
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Replacing the Batteries
• Battery condition is continuously monitored when the calibrator is on.
• When the battery level is low, all three Level LEOs will slowly blink.
1. Ensure that the calibrator is turned off.
2. On the back of the calibrator, push down slightly the small clip holding the battery door in place.
Pull the battery door away from the case.
3. Remove the two used AA alkaline batteries, noting their polarity.
4. Insert two new AA alkaline batteries, ensuring the correct polarity.
5. Reinsert the battery door and ensure that the fastening clip clicks into place.
6. Turn the calibrator on and ensure correct operation by noting that only one of the Level LEOs is
illuminated.
Performance Profile
Standards BS EN IEC 60942:2018
IEC 60942:2017
ANSI S1.40-2006
Reference Environmental Conditions Air temperature: 23 C
Static pressure: 101,325 kPa
Relative humidity: 50%
Models 703-001: AcoustiCHEK Class I Calibrator
703-002: AcoustiCHEK Class II Calibrator
Tolerance Limits of Environmental Class I:
Conditions Air temperature: -10 to +50 C
Static pressure: 65 to 108 kPa (650 to 1080 mbar)
Relative humidity: 25 to 90%
Class II:
Air temperature: 0 to +40 C
Static pressure: 65 to 108 kPa (650 to 1080 mbar)
Relative humidity: 25 to 90%
Nominal Sound Pressure Levels Class I: 94.0 dB ± 0.25 dB, 104.0 dB ± 0.25 dB, 114.0 dB ± 0.25 dB
Class II: 94.0 dB ± 0.4 dB, 104.0 dB ± 0.4 dB, 114.0 dB ± 0.4 dB
Principal Frequency Class I: 1 kHz ± 0.7%
Class II: 1 kHz ± 1.7%
Harmonic Distortion
< 2.5%
Class I: < 1.6%
Class II:
< 2.5%
Stabilizing Time 3 sec
Battery 2 x M Batteries (alkaline recommended)
Battery Life Approximately 70 hours of continuous use
Dimensions 3.1 x 2.7 x 1.2 in (78 x 68 x 30 mm) (H x W x
0)
Weight 1.4 Ibs (130 g)
skcinc.com Form 37174 Rev 200814 Page 2