Ecotech WinAQMS - Appendix C - How to Set up the Analysers

WinAQMS Mini DAS User manual 1.0 Appendix
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Ecotech EC9800 Series Analysers
Features:
 The WinAQMS Mini DAS supports both A and B series EC9800 analysers as well as
all versions of software.
 The Ecotech EC9800 series analysers all have multidrop RS232 communications ports
on the rear. In fact there are two in parallel.
 Each analyser can have an individual address (Main Gas I.D.).
 All EC9800 analysers can be connected in a daisy chain configuration to one RS232
port on the WinAQMS Mini DAS. i.e. If you have four 9800 analysers, you only need
to use one RS232 port on the rear of the logger.
Ecotech EC9800 Setup
Before connecting to the analysers you must first set the address of each analyser. The preferred
addressing convention is to use the analyser type as the address. e.g. for 9841A use 041, for 9850
use 050 for 9830 use 030 …etc.
There are two ways to set the address:
 In the 9800 main menu select "Instrument Menu". Then, in the field for "MAIN GAS
ID" enter the address. This method is the easiest.
 For analysers with older versions of software and do not have the Main Gas ID in their
menu, you will have to use the following procedure.
1. Set the 9800 analyser‟s Multidrop Baud Rate in the Interface Menu. Also make
sure that it is in COMMAND mode not TERMINAL made. The default setting
is usually 38400 baud for Ecotech 9800‟s and 2400 for Monitor Labs 9800‟s.
2. Connect the RS232 cable from the analyser to the WinAQMS Mini DAS. Only
connect one analyser at a time.
3. From the WinAQMS Mini DAS Manual menu select Communicate with
RS232. Set the port number as well as the baud rate and connect to the port.
4. By typing DCONC,???<enter> will cause the analyser to respond as long as its
main gas ID is not 000. If there is no response then check your
communications setup and RS232 cable.
5. Send the command PInnn<enter> where nnn is the 3 digit address for the
analyser. E.g. for 9850 use PI050<enter>.
6. You can test the analysers operation by typing DCONC,nnn<enter> (eg
DCONC,050). The analyser should respond with the instantaneous
concentration and a status word.