Ultrasonic Switch (Lu10 Series) - ProMinent DULCOMETER PH-501 Assembly And Operating Instructions Manual

SENSOR INFORMATION (ultrasonic)
Ultrasonic Switch (LU10 Series): The Ultrasonic level switch generates a 1.5 MHz ultrasonic wave from a
miniature piezoelectric transducer located on one side of the gap within it's sensing tip. Another piezo
transducer, located on the other side of the gap, acts as a microphone, picking up the sound wave. When
liquid enters the gap, there is a change in the speed the wave crosses the gap. This change in the speed of
sound identifies whether the sensor is in liquid or in air.
The sensor should be installed so that the liquid will drip out of the gap when the sensor becomes dry.
LU10 Specifications:
Sensor material: 1_ _5: PP
2_ _5: PFA
Classification: Intrinsically safe
Approvals: CSA: Class I, Groups A, B, C & D;
Class II, Groups E, F and G; Class III
EEx: Class 1, Division 1, Groups A,
B, C, D; EEx ib IIC T6
Configurations:
Part
Number
LU10 1305
LU10 1325
LU10 1405
LU10 1425
LU10 2305
LU10 2325
LU10 2405
LU10 2425
6 of 20
Material
Length
(body)
Short (3") Polypropylene
Short (3") Polypropylene
Long (4.5") Polypropylene
Long (4.5") Polypropylene
Short (3")
Short (3")
Long (4.5")
Long (4.5")
Cable jacket mat'l: 1_ _5: PP
Parameters:
Certificates:
Material
(cable)
Polypropylene
Polypropylene
Polypropylene
Polypropylene
PFA PFA
PFA PFA
PFA PFA
PFA PFA
LO900002
2_ _5: PFA
CSA: Vmax = 32V, Imax = 300 mA,
Pmax = 1.3 W; Ci = 0 μF, Li = 0 μH
EEx: Ui = 32V; Ii = 300 mA; Pi =
1.3 W; Ci = 0 μF; Li = 0 μH
CSA: LR 79326
EEx: LCIE 01.E6048 X
Thread
cable sensor
X
side
(¾" NPT) x (¾" NPT)
(¾" R) x (¾"R)
(¾" NPT) x (¾" NPT)
(¾" R) x (¾"G)
(¾" NPT) x (¾" NPT)
(¾" R) x (¾"R)
(¾" NPT) x (¾" NPT)
(¾" R) x (¾"G)
E-1262
Step Three
side
Rev A