TA Counter
A flashing display indicates that the counter is disabled. The counter enable/disable can be toggled
by pressing Key_R.
To zero the counter, hold down Key_R for 2 seconds.
Counting is inhibited by the Body Motion Detector. If Body Motion occurs causing the needle to
go off the right hand side of the dial, the counter will be disabled during the next needle SET. A
needle SET is usually accompanied by the green LED, however a needle SET with counter
inhibited is accompanied instead by the blue LED.
Needle TA Counter
The counter can optionally work continuously, not just when a needle SET occurs. It will however
only accumulate counts when the TA changes by 0.1 divisions or more, so small changes will be
disregarded.
See instructions for Setup Mode on how to enable this feature.
LED
The LED can display red, green or blue. See relevant sections in this document for the meaning of
these LED colours.
Note that the brightness of each colour can be adjusted, see Setup Mode.
Body Motion Detector
Unnaturally sharp changes in the needle motion are detected as body motion. This is indicated by
the blue LED. This feature is useful on automatic SET meters since the counter is then able to
reject body motion, see TA Counter section.
Note that a good gentle can squeeze will not trigger the detector, and it can be used as a training
excercise for this.
For those who find the blue LED irritating (such as during training drills with coach simulated
reads) it can be turned off in Setup Mode.
Three levels of detection can be chosen, see Setup Mode. It is recommended to use the highest
level unless it causes problems with triggering on heartbeat etc.
mw2A meter instructions Issue 1.0 Page 3
