Bacharach Gas Pup Betriebsanleitung PDF herunterladen (Seite 16)

CONSTRUCTION GA-40 T plus

SOCKET Pin No. Signal DESCRIPTION

1 RTS control

RS 232 2 RxD Receive Data - RS 232C

3 GND ground

4 TXD Transmit Data - RS 232C

Tab. 5 RS232 connections

Picture 4 shows the correct connection between the GA-40 T plusplus and a PC.

TxD 4 3 RxD 2 RxD

GND 3 7 GND 5 GND

RxD 2 2 TxD 3 TxD

RTS 1 4 RTS 7 RTS

20 4

5 8

RS 232 socket on analyser RS 232 plug on the computer

(numbered for the 25 pin plug of the

IBM computer standard)

RS 232 plug on the computer

(numbered for the 9 pin plug of

the IBM

computer standard)

Picture 4

4.4 Power supply

The analyser GA-40 T plus plus can be used powered by the internal battery or connected to the mains. The battery

will only operate the basic analyser, the following parts will only work when the instrument is connected to the

mains.

• Heated filter,

• Heated hose,

• Gas dryer,

• Heated probe holder (for soot test).

The socket for the mains cable is on the left side of the keyboard. It is not advisable to connect or disconnect

the mains supply whilst the analyser is in use. The analyser automatically switches to battery operation if the

mains supply is interrupted.

The maintenance-free battery has a capacity of 2.6 Ah/12 V.

If the battery voltage drops below a set level, the analyser will give an acoustic signal and the warning light

will illuminate. If the battery voltage continues to drop, then the analyser will switch off automatically after

about 15 minutes to prevent damage to the battery.

The battery is charged by connecting the analyser to the mains, regardless of whether the instrument is

switched on or off. The battery voltage can be seen on the screen during the initial calibration phase, and at

other times can be found under OPTIONS/DEVICE INFO.

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Bacharach Gas Pup Betriebsanleitung Seite 16