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| Home > Suppliers Directory > Kusam Electrical Industries Ltd. > Digital Sound Level Meter Model Km 927 |
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| Digital Sound Level Meter Model Km 927 |
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| Product Information |
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• Add to Inquiry Basket | Sound is an oscillation of air molecules caused by pressure differences. A sound emitting source causes the surrounding to oscillate. The air transmits these pressure differences.
frequency evaluation by means of filter a&c.
as the microphone accepts the sound pressure evenly within its frequency range, in opposition to the human ear, the instrument must be equipped with an additional filter to stimulate the human frequency evaluation. Thus, when selecting the a-evaluation, the sensitivity of the human ear approx simulated within the range of 100 hz is reduced by 20 db, the sound within the frequency range of 1000 hz remains without modifications. It is recommended to carry out a c-curve evaluation as shown in fig.1. When dealing with very loud sounds of low frequency.
Special features :
-3 1/2 digits display [1999 counts]
- functions keys : max / min hold.
-ac / dc signal output
-low battery indications
-applicable standards : 1ec 651 type ii
Specifications :
-display 3½ digits large lcd display, [1999 counts]
-frequency range:31.5 hz 8k hz,measuring level range 30130 db,measurement item spl [sound pressure level]
-frequency weighting a, c:microphone 1/2 inch electric condenser microphone.,time weighting fast [125 ms], s 10w [1 sec]
-accuracy:± 1.5 db [ref 94 db @ 1 khz]
-level ranges:lo: 30 80 db; med: 50 100 db; hi : 80 130 db
-dynamic range: 50 db
-alarm function:"over" is shown when input is more than upper limit of range /"under" is shown when input is less than lower limit of range
-power supply: single 9v battery,dc adapter socket voltage 9v, [813v, max],supply current >30 ma
-operation height:upto 2000 m above sea level
-operation temp. & humidity:5 deg c to 40 deg c, below 80% y.R.H
-storage temp. & humidity:-10 deg c to 60 deg c, below 80% y.R.H
-dimensions:280 mm [l] x 80 mm [w] x 32 mm [h]
-weight: approx. 300 gms [including battery]
-accessories:instruction manual, carrying case, screw driver x 1pc, 3.5 æ plug x 1 pc, 9v battery x 1 pc.
-sound level calibrator : conform to ansi s1. 4-1984/ ec 942 1998 class 2.,calibration level of 94 db, 1khz.,fits 1”, ½”, ¼” – diameter microphone,low battery indication,auto power off.
Applications :
km 927 digital sound level meter is designed and built to meet the measurement requirements of safety engineers, health, industrial safety offices and quality control in various environments according to iec 651 type ii, ansi s1.4 ii.
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| Supplier's Contact Details |
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| Supplier Name : | Kusam Electrical Industries Ltd. |
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| Address : | G-17,bharat Indl Estate, T J Road, Sewree (w),
Mumbai - 400015,
Maharashtra,
India. |
| Telephone No. : | 91-22-24124540 / 24181649 | |
| Fax No. : | 91-22-24149659 | |
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