Model 20-35-Nm-F Switches Setting; Table 3-2: Sw1And Sw2 Settings; Table 3-3: Sw3 Settings; Table 3-4: Sw5 Settings - Thermo Scientific 20-35-NM-F User Manual

3.1.2 Model 20-35-NM-F
SW1 and SW2 Settings are used to delay the indication of alarm conditions. This will prevent
alarms due to material momentarily moving the probe.
Table 3-2: SW1 and SW2 Settings
SW1 SW2
B B
A B
B A
A A
SW3 determines whether the alarm functions of the control unit respond like a Flow or Level
application.

Table 3-3: SW3 Settings

SW3 Mode
A Flow
B Level
SW5 determines whether the alarm functions of the control unit respond like a High or Low Level
application.

Table 3-4: SW5 Settings

SW5 Mode
A High Level
B Low Level
SW4 defines the instrument electrical power supply
Table 3-5: SW4 Selector Setting
SW4 Power Supply
Position 115VAC
Position 230VAC
3-4
Switches Setting
Delay in Seconds
1
2
4
6