SL-1 - Uncategorized CROWN - Free user manual and instructions
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| Type of product | Sound Level Meter |
| Brand | Crown |
| Model | SL-1 |
| Measurement range | 30 to 130 dB |
| Accuracy | ±1.5 dB |
| Frequency weighting | A and C |
| Response time | Fast (125 ms) / Slow (1 s) |
| Display | Analog needle with scale |
| Dimensions (H x W x D) | 120 x 55 x 25 mm |
| Weight | 180 g (including battery) |
| Power supply | 9V battery (6F22) |
| Battery life | Approximately 50 hours |
| Operating temperature | 0°C to 40°C |
| Storage temperature | -10°C to 50°C |
| Tripod mount | 1/4 inch thread |
| AC output | 1 Vrms at full scale |
| Functions | MAX HOLD, manual range selector |
| Calibration | External screwdriver adjustment |
| Accessories included | Carrying case, battery, user manual |
| Cleaning | Wipe with a soft dry cloth |
| Safety | Do not expose to moisture or heat |
| Repair | Only qualified technicians |
| Certification | CE compliant |
Frequently Asked Questions - SL-1 CROWN
How do I calibrate my Crown SL-1?
To calibrate the Crown SL-1, use an external sound source of known level. Adjust the calibration potentiometer with a small screwdriver until the display matches the reference level. For precise results, send it to a certified calibration laboratory.
What is the measurement range of the SL-1?
The SL-1 measures sound pressure levels from 30 to 130 dB. It covers typical environments from quiet rooms to noisy industrial areas.
Does the SL-1 require a battery? What type?
Yes, the Crown SL-1 is powered by a single 9V battery (type 6F22). It provides approximately 50 hours of continuous operation. When the battery is low, the display indication weakens.
How do I use the A/C weighting settings?
The A-weighting filters out low frequencies to mimic human hearing. Use it for environmental noise measurements. C-weighting has a flatter response and is suitable for measuring peak or high-level noises. Select the desired mode via the switch on the side.
Can I mount the SL-1 on a tripod?
Yes, the SL-1 is equipped with a 1/4 inch tripod thread on its base. This allows stable mounting for long-term measurements or hands-free operation.
What is the difference between Fast and Slow response?
Fast response (125 ms) captures rapid noise fluctuations, while Slow response (1 s) gives an average reading. Use Fast for short impulses and Slow for steady noise sources.
How do I clean the SL-1?
Clean the casing with a soft, dry cloth. Avoid water, solvents, and compressed air. Do not submerge the instrument or blow into the microphone.
Is the SL-1 water-resistant?
No, the SL-1 is not water-resistant. Do not expose it to rain, splashes, or high humidity. This could damage the electronics and the microphone.
What does the MAX HOLD function do?
The MAX HOLD function captures and displays the highest sound level recorded since the function was activated. Press the MAX HOLD button; the display will update only if a higher level occurs. Press again to release.
Why is the display showing a low battery indication?
If the display dims or the needle drops, the battery may be low. Replace the 9V battery with a new one. Check the battery terminals for corrosion if the problem persists. For safety, turn off the device before replacing the battery.
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USER MANUAL SL-1 CROWN
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Product information
Brand : CROWN
Model : SL-1
Category : Uncategorized