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Summary of Contents for Triplett SLM400
- Page 1 User Manual SLM400 Digital Sound Level Meter Introduction Congratulations on your purchase of the SLM400 Digital Sound Level Meter. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.
- Page 2 Safety Read the following safety information carefully before attempting to operate or service the meter. Use the meter only as specified in this manual; otherwise, the protection provided by the meter may be impaired. Environmental Conditions Altitude up to 2000 meters ...
- Page 3 Meter Description Microphone 4-digit LCD Display ON-OFF button LCD Backlight button Frequency weighting selection button Response time selection button Range selector button Max Hold / Data Hold selector button Battery compartment on rear 10. Calibration pots in battery compartment 11.
- Page 4 Operation 1. Power the meter by pressing the power button. The meter will begin displaying readings. If the LCD does not switch on, check the 9V battery located in the rear battery compartment. 1. Hold the meter in hand facing the microphone toward the source of the sound to be measured.
- Page 5 ‘Hi’ and ‘Lo’ Range Selections Use the ‘Hi/Lo’ button to select the appropriate range. If the measurement is in the range of 35 to 100 dB, use the ‘Lo’ range. If the measurement is between 65 and 130dB, use the ‘Hi’ range. For measurements between 65 and 100dB, either range can be used.
- Page 6 Calibration To calibrate the SLM400 an external calibrator that can provide a 94.0dB signal at 1 kHz is required in addition to a small screw-driver. Open the battery compartment and locate the two calibration potentiometers behind the 9V battery (see diagram) Put the meter in the ‘C’...
- Page 7 Specifications Display 4-digit (4000 count) backlit LCD Display update rate 0.5 seconds 0.5” Electret condensor Microphone Measurement Bandwidth 31.5Hz to 8KHz Dynamic range 65dB 35 to 130dB (Low: 35 to 100; High: 65 to Measurement Range 130dB) ‘A’ and ‘C’ (selectable) Frequency weighting Accuracy / Resolution ±...
- Page 8 Triplett / Jewell Instruments extends the following warranty to the original purchaser of these goods for use. Triplett warrants to the original purchaser for use that the products sold by it will be free from defects in workmanship and material for a period of (1) one year from the date of purchase.
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