3B SCIENTIFIC ® PHYSICS
1001032 (115 V, 50/60 Hz)
1001033 (230 V, 50/60 Hz)
Instruction sheet
09/16 TLE / SP
1 "Reset / Hand Enter" button
2 "Stop / Hand down" button
3 "Start / Hand up" button
4 Switch for acoustic counter signal
5 LED display, operating mode and measur-
ing ranges
6 Display
7 "In Stop" socket
8 "Out Start" socket
1. Safety instructions
The counter is intended for operation in dry
rooms suitable for the use of electrical equip-
ment.
Safe operation of the equipment is guaranteed,
provided it is used correctly. However, there is
no guarantee of safety if the equipment is used
in an improper or careless manner.
If it is deemed that the equipment can no longer
be operated without risk (e.g. visible damage
has occurred), the equipment should be
Electronic counter/timer
1
9 "In Start / Count" socket
10 BNC socket for Geiger-Müller tube
11 Earth terminal
12 Input A for light barrier
13 Earth terminal
14 Input B for light barrier
15 Selector switch for operating mode and
measurement period
switched off immediately and secured against
any inadvertent use.
The equipment may only be powered using
the plug-in power supply provided
Before setting up or starting any experi-
ments, make sure that there is no damage
to the insulation and that no wires are ex-
posed.
Only trained electricians are permitted to
open up the apparatus' housing.