Instruction/ maintenance manual of the product PS-7 DOD
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EXTRACTIVE GAS DETECT OR OPERA TION MANUAL Model PS-7 740 McArdle Dri ve, Unit C – Cryst a l Lake , IL 60014 815-788-5200 Phone 815-788-5300 Fa x www .dod tec.com • Operate this unit only af ter reading and fully understanding the content of this manual.
Some of the sett ings on this unit (alarm settings, etc.) are password prot ected. This Operation M anual explains the following it ems: • Passwords • Changing se ttings 1 Passwords 1-1 Password-p.
2 Changing Settings 2-1 S p an Adjustment (1) Set to maintenance mode (MNT1 or MNT2). (2) Release the password lock. (R efer to 1-2 Releas ing the Pass word Lock .
2-2 21V ol% Adjustment (1) Set to maintenance mode (MNT1 or MN T2). (2) Release the password lock. (R efer to 1-2 Releas ing the Pass word Lock .) (3) Press the SP AN switch. (4) Let the calibra tion gas thro ugh. (5) Use the UP/DOWN swi tch to adjust the concentration indicati on on the screen t o that of the cali bration gas concen tration.
2-3 Changing Setting V alues Some of the setting values of t he unit can be change d. Those th at can be changed are listed in the table below . The method fo r changing them is explained here. (1) Release the password lock. (R efer to 1-2 Releas ing the Pass word Lock .
(4) Change the val ue by using th e UP/DOWN switches (“ U ” or “ V ”). When you are done, press t he special command switch agai n, and the alternati ng display in the bottom right corner of the LCD display will become const ant. Th e process is now finish ed.
2-4 Changing the Alarm Settings The values of alarm settings on this unit can be c hanged. The method for changing them is explained here. (1) Release the password lock. (R efer to 1-2 Releas ing the Pass word Lock .) (2) Press the AL switch until the alarm setti ng to be changed is displayed on the L CD display .
H – H mode (1 st level: Upper limit, 2 nd level: Upper limit) Norm al state (No ga s is detected) L – L m od e ( 1 st level: Lower limit, 2 nd level: Lower limit) N o r m a l s t a t e H – L mode (Upper limit, Lower limit) N o r m a l s t a t e * A2 val ue should be alwa ys greater than A1 value.
Manual Rev is ion History Edition No. Date Revisions GAE-019 July 2004 Additional co pies of this Operatio n Manual are avail able. Contact the followin g address fo r ordering inf ormation.
An important point after buying a device DOD PS-7 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought DOD PS-7 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data DOD PS-7 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, DOD PS-7 you will learn all the available features of the product, as well as information on its operation. The information that you get DOD PS-7 will certainly help you make a decision on the purchase.
If you already are a holder of DOD PS-7, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime DOD PS-7.
However, one of the most important roles played by the user manual is to help in solving problems with DOD PS-7. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device DOD PS-7 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
