JIB/CT - Measurement Galaxy Audio - Free user manual and instructions
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| Product Type | Audio Measurement Device |
| Model | JIB/CT |
| Brand | Galaxy Audio |
| Category | Measurement |
| Dimensions (approx.) | 130 x 70 x 25 mm (5.1 x 2.8 x 1.0 in) |
| Weight (approx.) | 180 g (0.4 lbs) |
| Power Source | 2 x AA batteries (3V DC) |
| Measurement Range | 30 to 130 dB (SPL) |
| Frequency Response | 31.5 Hz to 8 kHz |
| Accuracy | ±1.5 dB (at reference conditions) |
| Display | LCD with backlight (digital readout) |
| Main Functions | Sound level measurement, data hold, max/min recording, frequency weighting (A and C) |
| Output | Analog AC/DC output via 3.5mm jack (optional) |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -10°C to 60°C (14°F to 140°F) |
| Maintenance and Cleaning | Wipe with a dry, soft cloth; do not use harsh chemicals; keep microphone clean |
| Safety Warnings | Do not expose to moisture or extreme temperatures; avoid dropping |
| Spare Parts and Repairability | Calibration screw accessible for adjustment; replaceable battery compartment |
| General Information | Designed for acoustic measurements in professional and DIY audio applications |
Frequently Asked Questions - JIB/CT Galaxy Audio
How do I calibrate the Galaxy Audio JIB/CT measurement device?
Use the calibration screw on the side of the device. Set the device to a known reference sound level (e.g., a calibrator at 94 dB) and adjust the screw until the display matches the reference.
What is the frequency weighting used for?
Frequency weighting (A or C) filters the input signal to mimic human hearing (A-weighting) or for flat response (C-weighting). Use A for general environmental noise measurements, C for peak or low-frequency noise.
Can the JIB/CT measure both maximum and minimum sound levels?
Yes, the device has MAX/MIN modes that capture and hold the highest and lowest readings during a measurement session. Press the MAX/MIN button to cycle through these values.
What type of battery does the JIB/CT use and how long does it last?
It uses two AA batteries (1.5V each) or rechargeable NiMH batteries. Typical battery life is around 30 hours of continuous use with backlight off.
Is the JIB/CT suitable for measuring environmental noise?
Yes, with a range of 30-130 dB and A-weighting, it is suitable for general environmental noise surveys, workplace noise, and community noise assessments.
How do I connect the device to an external recorder or analyzer?
Use the 3.5mm output jack on the top of the device. The device outputs analog AC (audio) or DC (RMS) signal, which can be connected to a recorder or data acquisition system for further analysis.
What is the best way to clean the microphone?
Gently wipe the microphone grille with a soft, dry brush or compressed air to remove dust. Do not insert any objects into the microphone port. Avoid using cleaning solutions.
Can I use the JIB/CT to measure music levels at a concert?
Yes, the range covers typical music levels, and the C-weighting is often used for peak music measurement. Be aware that sustained exposure above 85 dB can cause hearing damage.
Does the device have a backlight for low-light conditions?
Yes, the LCD display has a backlight that can be toggled on or off. It improves visibility in dark venues or outdoor settings.
What is the accuracy of the JIB/CT?
The device has an accuracy of ±1.5 dB at reference conditions (1 kHz, 94 dB SPL). This is typical for a Class 2 sound level meter.
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USER MANUAL JIB/CT Galaxy Audio
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Product information
Brand : Galaxy Audio
Model : JIB/CT
Category : Measurement