8
LI0055 – Revision 25 June 2012
Ordering Information
Included Items
Part Number
½" Ground array microphone kit (includes 47AX-S1 ½” Flush-mounted
microphone set, Ø400 mm mounting plate with assembly parts and
cable, and windscreen)
67AX
Manual
LI0055
Accessories
The following accessories are needed for the 67AX, but they are not included in the
basic package. They must be ordered separately.
Accessory
Part Number
Pistonphone field-verification adapter
RA0216
Pistonphone calibration adapter
RA0221
Important
: The pistonphone calibration adapter and the pistonphone field-verification
adapter are designed for use with a 250 Hz pistonphone, such as the G.R.A.S. 42AP
Pistonphone. Do not use them with any other calibrator or verification device. The
250 Hz pistonphone can be used for both calibration and daily verifications.
Calibration
Before leaving the factory, all G.R.A.S. products are calibrated in a controlled laboratory
environment using traceable calibration equipment.
An individual test certificate is included with each product. The calibration information is
also stored in the built-in TEDS.
We recommend a yearly recalibration at minimum, depending on the use, measurement
environment, and internal quality control programs.
We recommend calibration prior to each use to ensure the accuracy of your
measurements.
Warranty
All G.R.A.S. products are made of high-quality materials that will ensure life-long stabil-
ity and robustness. The 67AX is delivered with a 5-year warranty.
