Page 34 - PBL71 OI/AXM630-EN AZTEC 600 SS (WIRO)

Aztec 600 ISE ammonia and fluoride
Single-stream ion-selective analyzers 6 Configuration
6.1.4 Security
The analyzer is fitted with an internal security switch that, in combination with the 'Configuration security' parameter settings (see page 31), is used to prevent unauthorized access to the Configuration Level.
Two methods of configuration access protection are available:
1. Password protection (Factory Default)
The Configuration level can be accessed only when the correct password has been entered.
2. Internal security switch protection
The Configuration level can be accessed only when the internal security switch is set to the 'Enabled' position.
Internal Security Switch Setting (see Fig. 6.2) Disabled (Factory Default)
Enabled
A
'Password protected' (Factory Default) Password Access
Free Access
'Internal switch protected' (Alternative) No Access
Free Access
B
Fig. 6.2 Accessing the Internal Security Switch
Enabled
Enabled
C
Disabled
Disabled
Switch 'Disabled' Position: Configuration Level Access Disabled
Switch 'Enabled' Position: Configuration Level Access Enabled
To access the internal security switch:
1. Switch off the power supply to the analyzer and turn the two door retaining screws A 1/4 turn counter-clockwise.
2. Using a cross-head screwdriver, remove the four cover plate retaining screws B and remove the cover plate.
3. Set the security switch C to the required position.
Note. The Internal Security Switch is, by default, set to 'Disabled' and should only be used to access the Configuration level when 'Configuration security' is set to 'Internal switch protected' – see page 31. Do Not use the switch to access the Configuration level when 'Configuration security' is set to 'Password protected' (default setting) unless the Password has been forgotten. The switch overrides Password protection, enabling free access to the Configuration level.
30 OI/AXM630–EN Rev. J
'Configuration security' parameter setting (see page 31)