7
To zero instrument:
1. Disconnect head, turn off then on again. "Head
Disconnected" will be displayed.
2. Press "select" until "zero" is highlighted.
3. Press "go".
4. Make sure instrument is not in an electrically
noisy environment and is undisturbed. Press "go"
and wait for message, "zeroing completed". Press
"exit".
5. For thermal heads, zeroing with the head may also
be necessary. See section 3.5.2.
2.2 Thermal Heads
2.2.1 Use of Nova with thermal type heads
To set type of laser being used:
1. While the Nova is off, plug in the head then switch
it on again.
2. From bargraph measurement screen, press the
menu button twice and press "laser" until the
correct laser type is displayed.
3. Return to bargraph screen by pressing the menu
button again.
To choose manual or automatic ranging in power
measurement:
1. From the bargraph measurement screen, press the
menu button once, then press "range" or simply
press the right most soft key.
2. Select the appropriate manual range or autorange.
3. Press "exit" and then press the menu button twice
to return to the bargraph measurement screen.
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