Philips PM2528 Operating Manual page 42

42
6.1.
6.2.
6.2.1,
OPERATION
SWITCHING ON
The instrument is ready for use after earthing and connecting it to the mains. It is switched on by means of the
push-button switch "POWER". A warming-up time of approx. 30 minutes should be taken into account to
meet the specified accuracy,
When the PM2528 is brought from a cold into a warm environment condensation can cause incorrect readings.
NOTE: Before connecting an input signal to the PM2528 select the correct function and range.
CONTROLS, CONNECTORS AND DISPLAY
Front panel
Ranging
UP Up-ranging: 1 x press UP gives next higher range.
DOWN Down-ranging: 1 x press DOWN gives next lower range.
AUTO © Automatic ranging: ranges are selected automatically.
LED in push-button lights at AUTO RANGING.
Measurements are started internally.
Measurements can be started externally via BNC or interface.
Measurements can be started by pressing the push-button. MAN.
LED in selected START mode lights.
Function
O Direct voltage measurements.
© Alternating voitage measurements
O. Alte: i n g voltage measurement: 9 direct voltage component.
© Two-wire resistance measurements.
© Four-wire resistance measurements, possible with 4-wire test lead
© Direct current measurements.
© Alternating current measurement including de component.
O Peak voitage measurements. Only possible with peak voltage option
PMg259.
O High frequency voltage measurements. Only possible with HF option
PM9258 and HF probe PM9211.
© Temperature measurements. Possible with Pt-100 probe e.g. PM9249.
NOTE: © Function is switched on when LED in push-button lights.