L ST4 0 0 |
U LT R A S O N I C L E V EL T R A N SM I T T ER
| O I/L S T4 0 0 - EN R E V. E
19
8 Examples
Distance measurement
11.55 ft / 3.50 m
16.5 ft / 5.00 m
Transducer
Piston
The above application deals with a moving piston:
The maximum range for the piston is 16.5 ft / 5.00 m and the
closest the piston can get to the transducer is 1.63 ft / 0.50 m
(Due to the blanking of the transducer).
Security code
5159
Mode
DISTANCE
Empty distance
16.5 ft / 5.00 m
Span
14.85 ft / 4.50 m
Blanking
1.63 ft / 0.50 m
Rate of change
3.28 ft/min / 1.00 m/min
Below is what LST400 will display on the above application.
Dist. 11.55 ft
mA Output:
14.66mA
Instant:
11.55 ft
Temperature: 20°C
Percentage:
66.66%
The analogue output should be approximately 14.66mA.
Level measurement
Empty distance
16.5 ft / 5.00 m
2.46 ft / 0.75 m
Blanking distance 1.63 ft / 0.50 m
RELAY1 SET
13.2 ft / 4.00 m
RELAY 1 RESET 11.55 ft / 3.50 m
Span 14.85 ft / 4.50 m
RELAY 2 SET
3.28 ft / 1.00 m
RELAY2 RESET
4.95 ft / 1.50 m
NOTICE
Set the relay set and reset point further apart to avoid the
relays from chattering.
Below is what LST400 will display on the application above.
Relay 1 will switch on (set) when the level rises above 13.2 ft /
4.00 m and reset when the level goes below 11.55 ft / 3.50 m.
Relay 2 will switch on (set) when the level drops below 3.28 ft /
1.00 m and reset when the level goes above 4.95 ft / 1.50 m.
Level 13.94 ft
mA Output:
19.11mA
Instant:
2.46 ft
Temperature: 20°C
Percentage:
94.44%
Security code
5159
Mode
LEVEL
Empty distance
16.5 ft / 5.00 m
Span
14.85 ft / 4.50 m
Blanking
1.63 ft / 0.50 m
Rate of change
3.28 ft/min / 1.00 m/min
Setup relays
YES
Relay 1
HI
Relay 1 set
13.2 ft / 4.00 m
Relay 1 reset
11.55 ft / 3.50 m
Relay 2
LO
Relay 2 set
3.28 ft / 1.00 m
Relay 2 reset
4.95 ft / 1.50 m
