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LI0056 – Revision 28 May 2015
Introduction
The 67SB Blast Probe According to ANSI S12.42 is designed to meet the require-
ments of a blast probe suitable for high-level impulse measurements as outlined in
ANSI S12.42. The 67SB complies with ANSI S12.42 and IEC 61094-1.
The 67SB consists of a sturdy aluminium tube and a flush-mounted 1/8-inch externally
polarized pressure microphone (40DP) as sensor. The tube has a 3/4 inch thread for
mounting on a tripod or similar device.
Fig. 1.
The 67SB seen from above and below.
67SB Blast
Probe Microphone
Serial No. XXXXXX
G.R.A.S.
Sound source
Do not co
ver
sensor
For removing
probe top
For removing
sensor
Top view
Bottom view
1/4˝ thread
(for tripod or similar)
M2 hex screws
(for 1.5 mm hex key) for
microphone and probe
assembly
Hole for
microphone
67SB Blast
Probe Microphone
Serial No. XXXXXX
G.R.A.S.
Sound source
Do not co
ver
sensor
For removing
probe top
For removing
sensor
7-pin female Lemo
Dot for
alignment of
calibration
adapter