Bruel & Kjaer 4230 94db 1000hz Sound Level Calibrator W/ Adapter, Case & Battery

US $265.00

  • Colorado Springs, Colorado, United States
  • Jan 29th
Visit our eBay store: Research Equipment of Colorado Bruel & Kjaer 4230 94dB 1000Hz sound level calibrator w/ adapter, case & Battery (80) Features This sale is for one Bruel & Kjaer type 4230 94dB 1000Hz sound level calibrator w/ leather case, new Battery & adapter for 1/2 “ microphones. The B&K calibrator is a pocket sized sound source designed for accurate everyday calibration of sound level meters using 1/2 in. and 1 inch microphones. You will receive the Bruel & Kjaer calibrator with the DB3011 adapter in place. To use the calibrator with a 1” microphone, you will first need to remove the adapter. This is done easily by pulling it from the calibrator with the help of your fingernails in the groove. The groove is readily seen in the last photograph. In the photos you will see that there is a note inside the cover of each calibrator. The note reads, “. . . for free-field corrected microphones Adjust to 93.6 dB for type 4117, 4131 and 4135, and to 93.8 dB for type 4133 and 4146. . .” This small correction is necessary to compensate for the difference between free-field response at 0° incidence and the pressure response. No correction is required when calibrating pressure response microphones. There are two of these available, one with a brown leather case and the other a black case. Whoever purchases the first one can choose the color they want. If no choice is made, they will receive the brown one. Both of the calibrators are in excellent condition with no visible marks on the body and each has been fitted with a new battery. Each of them has a minor cosmetic issue with the leather case. The brown one has a darkened area where a label was once attached and on the black one, the leather is soft and its upper edge tends to roll slightly. These are both visible in the photographs. The first 5 photos are of the brown one, 6 thru 10 are of the black one and no. 11 is to show the groove between the adapter and the calibrator. Before buying this item, please make sure it is compatible with your equipment. Important features 94 dB re 20 µPa 1000 Hz New battery has been installed Overall dimensions: diameter 4 cm x length 10 cm (1 5/8 in x 4 in) other Serial number on Brown one: 542184 Serial number on Black one: 396223 Condition These items are used and both have been well maintained. They have been tested and are operating properly. The photograph shows the actual items in the sale. Other information Shipping weight: 1 lb. Manual not available © 2014 Research Equipment Company of Colorado Research Equipment of Colorado – Return Policies and Shipping information for this sale item Return policy This item is guaranteed for 30 days. If it fails within 30 days, we will refund the original selling price and shipping costs or send you a replacement if one is available. We will also reimburse you for shipping the old unit back to us. If you feel that the item is not as advertised or not what you expected, you may return it within 14 days for a refund of the sales price but you will forfeit the shipping cost. The best way you can avoid the situation in the last paragraph is to read the ads carefully. If there is missing information or something that is not expressed clearly, email me and ask about it before you bid. Remember, I don't want you to be disappointed and returns are as much trouble for me as they are for you. Ask the question! Occasionally I'll be able to point you in a more fruitful direction. Shipping We will ship only to the United States and Canada. Canadian buyers should contact us by email for an estimate of shipping costs. Shipping costs There are no handling charges. Shipping time This item will be shipped within 1 business day of receipt of payment. RECO S 1 – 3
Condition Used :
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections.
Seller Notes These items are used and both are in good cosmetic condition and have been well maintained. They have been tested and are operating properly.

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