CAUTION: Shows where incorrect procedures can cause damage to, or destruction of equipment or other property.
WARNING: Shows a potential danger that requires correct procedures or practices to prevent personal injury.
Shows where the protective ground terminal is connected inside the instrument. Never remove or loosen this screw
This symbol is used for identifying the functional ground of an I/O signal. It is always connected to the instrument chassis.
Indicates that the operator should consult the manual.
One such symbol is printed on the instrument, below the A and B inputs. It points out that the damage level for the input voltage decreases from 350 Vp to 12Vrms when you switch the input impedance from 1 MΩ to 50 Ω.
Whenever you suspect that it is unsafe to use the instrument, you must make it inoperative by doing the following:
- Disconnect the line cord
- Clearly mark the instrument to prevent its further operation
- Inform your Pendulum Instruments representative.
For example, the instrument is likely to be unsafe if it is visibly damaged.
CNT-90 & CNT-90XL only
If your instrument was ordered with a built-in battery supply (Option 23/90), it contains 12 Li-Ion cells arranged as a fixed battery pack with internal protection circuitry.
Even though this type of cell does not cause environmental damage in the same way as NiCd, for instance, you should dispose of a worn-out battery pack at an authorized recycling station or return it to Spectracom.
Individual cells cannot be replaced.