beautypg.com

AMETEK SLM Series Rev B User Manual

Page 29

background image

SLM-Series AC/DC Electronic Load

Operation

M540072-01 Rev B

3-3

• During FREQ ON condition (see 15):

o

For frequency (“FrEq”) setting, displays DC, 0.1 - 70.0, Auto.

o

For bank (“bAn”) selection, displays 0 - 10.

o

For sync (“Sync”) selection, displays “ON”, OFF”.


7 PRES key and ON/OFF LED

Key toggles Preset mode and its LED on and off.

• During Preset OFF, PRES ON/OFF LED not lit:

o

upper DM displays the voltage input to electronic load as “Vrms” (Vrms LED lit)

o

lower DM displays the current flowing into electronic load as “Arms” (Arms LED
lit)

• During Preset ON, PRES ON/OFF LED lit,

o

both upper and lower DMs will have different displays depending on which mode
is active:

Constant Current mode (CC LED on), lower DM displays the setting value
of Level A/B load current as “Arms”, (Arms LED lit).

Constant Resistance mode (CR LED on), lower DM displays the setting
value of Level A/B load resistance as “

Ω”, (Ω LED lit).


8
LOAD key and ON/OFF LED

Key toggles Load and its LED on and off.

• Load OFF (LED not lit), electronic load returns to the condition set originally.
• Load ON (LED lit), electronic load is at the condition set originally and is ready to be

loaded with the load current of the AC/DC input power source.


9
WATT key and ON/OFF LED

Key toggles Watt mode and its LED on and off.

• Watt ON (LED lit) indicates the Watt VA condition of actual loading.
• Watt OFF (LED not lit) means Watt OFF, e.g., to indicate the voltage and current

condition of actual loading.

• During Preset OFF (see 7) condition:

o

upper DM displays the value in Watts consumed for electronic loading (“W” LED
is lit);

o

lower DM displays the value in VA flowing into electronic load (“VA” LED lit).

• During Preset ON (see 7) condition, both upper and lower 4-½ digit monitors will have

different displays with the change of working mode as follows:

o

CC Mode, the setting value of Level A/B load current displayed on the lower DM
with the unit as “Arms” and corresponding LED lit.

o

CR Mode, the setting value of Level A/B load resistance displayed on the lower
DM with the unit as “

Ω” and corresponding LED lit.


10 LEVEL key and Lo/Hi LED

Key toggles between Low, LED off, and Hi, LED ON to set the values of groups A/B for
rapid switching load current or resistance.


11 LIMIT key and ON/OFF LED

Key toggles between Limit ON (LED lit) and Limit OFF (LED not lit) condition:

• Upper DM displays upper limit of:

o

Voltmeter with the unit as “Vrms”.

o

Ammeter with the unit as “Arms”.

o

Wattmeter with the unit as “W”.