Instruction manual

Preparations

7. Mount the 1/2-inch adapter on the coupler of the pistonphone.

8. Insert the microphone very carefully and slowly all the way into the coupler.

9. Set the power switch of the pistonphone to ON.

10. Adjust the calibration control on the side of the NA-27 with the supplied miniature

screwdriver so that the level reading matches the calibration value indicated on the

pistonphone.

For information on compensation for atmospheric pressure, please refer to the in-

struction manual of the pistonphone.

11. Turn off the pistonphone and the NA-27.

12. Remove the microphone very carefully and slowly from the coupler.