Newcon Optik NVS 6 operation manual Nvs

NVS 6

MANUAL

Trouble	Probable
and		Remedy	Remarks
	cause
symptoms
sical damage	repair		at Manu-
			facturer’s
			facilities
	1 The	1 Forward the unit	To be
3 One of the	image-	for repair	performed at a
	intensifier tube		repair shop or
image-intensifier
tube screens is	is unser-		at Manu-
	viceable		facturer’s
not illuminated.
			facilities
Visible on the
screen are black
dots that tend to
grow to a
dimension of a
segment
4 With the unit	1 Moisture	1 Replace	Can be
energized, drops	has got inside	dehydrator cartridge	performed in
of moisture are	the unit (failure	(13) (Ref. Fig. 5.1),	the field
visible on optical	of the eye-	by first inspecting
surfaces in the	piece sealing)	the color of silica gel
field of vision of		indicator through
the eyepiece		the sight glass (14).
		Replace silica gel
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