Hp E1459A Manual do Utilizador descarregar pdf (Página 22)

Installing and Configuring the HP E1459A 21

Setting Input

Threshold Levels

The threshold levels for each channel can be set independently. A six pin

plug with a two pin shorting jack is provided for each channel. The channel

can be identified from the silk-screen on the board. Each jumper is labeled

JXCC, where J indicates jumper, X is a number that can be ignored and CC

indicates channel number. The default factory setting is for 5 volts. Pin 1 can

be identified by the square pad on the bottom of the board.

Figure 1-6. Input Threshold Level Jumpers and Watchdog Reset Time Jumpers

Setting the Reset

Time on the

Watchdog Timer

There are 2 jumpers located on the PC board used to control the reset time

of the Watchdog Timer (see Figure 1-6). The reset time is the maximum

allowed time between accesses to keep the Watchdog from asserting

SYSRESET. The Watchdog timer is reset by reading the Watchdog

Control/Status register; use the DIAG:SYSR:STAT? command (see Chapter

3).

The following table shows the effect of the jumpers on the reset time. An X

means that the jumper is in place and O indicates the jumper is removed. The

factory default setting is 1.2 second.

12 Volt

24 Volt

48 Volt

5 Volt Settings

(Factory Default)

Ch 0 Ch 2

Ch 3

Ch 5

Ch 6

Ch 8

Ch 63

Ch 60

Ch 57 Ch 59

Ch 62

JM203

JM202

PET Time

Jumpers

Ch 61

Jumper Reset Time

600 ms 150 ms 1.2 sec Not Allowed

JM202 O X O X

JM203 O O X X

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 111 112

Comentários a estes Manuais

Sem comentários

Hp E1459A Manual do Utilizador Página 22

Comentários a estes Manuais

Manuais e produtos relacionados com Hardware Hp E1459A