Beyond INF-B Manual do Operador descarregar pdf (Página 111)

101

External Control Lines

31 EXTERNAL CONTROL LINES

P2, the 20-pin connector at the rear of the main board, connects to the setpoint transistor

collectors and permits remote control of significant meter features.

The meter case label gives the names (abbreviated functions) of each of the twenty pins of P2, the

center-bottom connector. Refer to Figure 30-1.

Figure 30-1. Connector Label Detail

31.1 TARE (PIN 1)

Tare is available when P2-1 and P2-4 are connected to a momentary contact switch. This feature

allows you to automatically zero your meter when the switch is activated. Tare is not available for

temperature meters.

31.2 PEAK (PIN 2)

When this is connected to P2-4 by an external switch, the meter displays the stored PEAK

(“HI RDG”) value rather than the current reading. The display flashes to distinguish this value.

TARE(T)

VALLEY (V)

EXT. RESET

DIG RTN

DISPLAY HOLD

NONSTANDARD TX

+V EXT

SP2

AL2

PEAK (P)

SWLIN2

N/C

+5V

LOCKOUT EEPROM &

MENU PUSH BUTTON

NONSTANDARD RX

N/C

SP1

AL1

RTN EXT

}

RESET ALARM

1 2 ... 106 107 108 109 110 111 112 113 114 115 116 ... 131 132

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Beyond INF-B Manual do Operador Página 111