Operating Instructions 2

OPERATING FEATURES

Note that the VAC and mA AC functions are available only with the True RMS AC option. If this option is absent, pressing the VAC and mA AC function buttons causes the 8842A to briefly display an error message (ERROR 30).

 

FUNCTION BUTTONS:

 

 

DC Volts

4-Wire Ohms

 

 

AC Volts*

DC Current

CAL ENABLE switch

 

 

 

HIGH and LO SENSE

2-Wire Ohms

AC Current*

enables calibration

Terminals for 4-Wire Ohms Only

 

Display

mode. (CAUTION! See text.)

 

 

 

HI and LO INPUT Terminals

2A INPUT Terminal (Houses 2A fuse)

!

SPECIAL

FEATURES

!

M

FRONT/REAR switch selects

RANGE BUTTON:

 

 

 

200V, 200 k

or

 

either front or rear inputs.

20 mV or 20

 

200 mA dc

 

 

 

 

 

 

Calibration Functions

200 mV or 200

1000V dc, 700V ac,

 

2 M or 2000 mA

 

 

 

(embossed)

 

 

2V or 2 k

20 M

 

POWER switch turns 8842A

 

 

 

20V or 20 k

Autorange On/Off **

on or off. Also initiates

 

power-up self-test and

 

 

 

 

 

 

 

 

resets instrument to:

 

 

 

 

VDC function

 

 

 

 

Autorange

 

 

 

 

Slow reading rate

 

 

 

 

Continuous trigger

 

 

 

 

OFFSET off

 

 

 

 

Local (front panel) control

*Available with 8842A-09 True RMS AC only.

** For a description of the autorange feature,

Gives error message if option not installed.

see paragraph 2-14.

f2-05_1.wmf

Figure 2-5. Front Panel Features

2-5

Page 30
Image 30
Fluke 8842a instruction manual Operating Features