Analog Signal Output; Maintenance And Cleaning - VOLTCRAFT SL-400 Bedienungsanleitung

Analog signal output (16)

The sound level meter SL-400 has an analog signal output at which a voltage pro-
portional to the measuring signal can be picked up.
This output can be used for additional measuring functions like e.g. an X-Y scriber,
etc. You can select between direct and alternate voltage.
The connection is established via an optional 3.5 mm stereo jack
plug.
Depending on the purpose, connect the output to contact 1 and
3 (for AC) or contact 2 and 3 (for DC).
1 = AC output (max. 1Vrms/130 dB, impedance 100 Ohm)
2 = DC output (10 mV/dB, impedance 1 kOhm)
3 = GND ground potential
Never short-circuit the output, otherwise it may be damaged.

Maintenance and cleaning

The device is maintenance-free apart from the need to replace the batteries and
cleaning it once in a while. Use a clean, lint-free, antistatic and slightly damp cloth to
clean the device. Do not use any abrasive or chemical agents or detergents contai-
ning solvents.
Battery replacement
If the battery symbol (2F) appears on the display, the batteries have to be replaced
as soon as possible to prevent inaccurate measurements.
Proceed as follows to replace the batteries:
- Switch off the measuring instrument.
- Slide the battery compartment cover on the rear off the casing in the direction of
the arrow.
- Replace the flat 9V battery with a new one of the same type (e.g. 1604 or 6F22).
- Close the measuring instrument again carefully by proceeding in the reverse order.
Do not leave flat batteries in the device. Even batteries protected
against leaking can corrode and thus release chemicals which may be
detrimental to your health or destroy the battery compartment.
If the device is not used for longer periods of time, remove the batteries in order to
prevent leaking.
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