Fluke Portable Multimedia Player 8842a Manual Do Utilizador

CALIBRATION

6

6-21

Display

G2

Loads the calibration prompt into the output buffer. Not valid
when the 8842A is taking verification readings.

Function Buttons

F1 through F6

In the calibration mode, these select the Offset and Gain
Calibration procedure for the corresponding funtion.

Range

R1 through R6 and R8 In the calibration mode, these select the Offset and Gain

Calibration Procedure for the corresponding range in the
presently selected function. (For entering variable inputs, see
VAR IN below.)

STORE

C0

Tells the 8842A that the requested calibration input is valid.
This command causes the 8842A to take readings, and
compute and store calibration constants.

NOTE

The C0 command can take up to 22 seconds to execute.
You must determine when this command is complete
before sending more commands. See Timing
Considerations in text.

A/D

C1

Selects the A/D Calibration procedure.

HF AC

C2

Selects the High-Frequency AC Calibration procedure.

ERASE

C3

After receiving this command the display shows the erase
mode prompt (‘cl’). (The prompt is not loaded into the output
buffer.) To complete the erasure you must then send C0.
Sending any other command after the C3 command causes
the 8842A to return to its previous state. There is no timeout
as with the front panel ERASE button.

RATE

S0 through S2

Changes the reading rate while the 8842A is taking
verification readings. Causes an error at any other time
during calibration.

VAR IN

N

<

value

>

P2

Enters 

<

value

>

 as a variable input. (See Entering Variable

Inputs, in text.) Causes an error if sent during A/D Calibration
or when the 8842A is taking verification readings. You can
check that the command was successful by checking the
error status or by sending the Get Calibration Input command
(G2).

--

P3

<

string

>

Puts the 

<

string

>

 into calibration memory. The string must

contain up to 16 ASCII characters, and be recalled with the
G3 command.

NOTE: Other commands that may be used during calibration are: P1 (Put SRQ mask); the remaining Get
commands; and X0 (clear Error Register).