PULSAR MEASUREMENT 
 
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Example 4 Level Monitoring with Alarms 
A vessel, containing liquid that has a variation in level that is to be 
monitored, with a high-level alarm set on Relay 1 and low-level alarm set on 
Relay 2. 
 
 
 
 
 
 
 
 
 
 
 
 
In this example, when the level rises to 2.38m (7.80 ft), relay 1 will come on 
until the level drops to 2.24m (7.34 ft) when it will turn off. If the level drops 
to 0.28m (0.91 ft), then relay 2 will come on until it rises 0.42m (1.37 ft) when 
it will turn off. 
The display will show the level in the tank. 
The mA output will be representative of level where 4mA = empty level (0%) 
and 20mA = 2.8m (9.18 ft) (100%).