User manual

- after prolonged storage under unfavourable conditions, or

- after it was exposed to extraordinary stress caused by transport.

Installation, commissioning

A basic adjustment, general

a1 Do not operate the device in extremely cold or hot places, in

vehicles during summer, near fan heaters.

a2 Do not expose the device to direct insolation. The display

becomes black at temperatures over approx. 60°C (no longer

readable). Only after corresponding cooling (in the shadow) the

display becomes visible again.

a3 Never turn on the device immediately after it has been brought

from a cold into a warm room. Condensation water that forms

might destroy your device. Leave the device switched off and

wait until it has reached room temperature.

a4 Do not operate the device in the direct vicinity of hot soldering

irons.

a5 Do not place the device with the control panel side down as

this may cause misadjustments.

a6 If signal sources with BNC outputs are to be connected to the

corresponding counter input (A, B or C), a coaxial cable is

usually used for this connection. These cables are screened,

i.e. the inner signal-conducting wire is shielded against external

disturbance signals through a network of copper wires or tin-

coated copper wires. This protective screen is generally

connected to the earth of the signal source or of the counter. If

you want to measure signals to devices or modules of electro-

nic circuits, use a coaxial cable for this purpose that has a male

BNC connector at one end and is open at the other end. The

open ends are fitted with alligator clips.