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All specifications are subject to change without notice.
Powder Level Sensors
LTS, TSP Series
TDK’s piezo-type level sensor, which uses a sensor element con-
sisting of a piezoelectric ceramic, was developed originally by
TDK.
The sensor detects the presence of powder when the sensor ele-
ment, which a built-in oscillating circuit causes to vibrate, comes
into contact with powder and the vibrational conditions are altered.
The TSP series, which employs an external source of oscillation
based on a custom chip, offers even better operational stability.
FEATURES
This is a unique sensor that employs a piezoelectric ceramic
sensor element.
The exterior has a die cast finish which makes the sensor highly
resistant to effects caused by external vibrations and provide
stable detection characteristics.
The sensor can detect both magnetic and non-magnetic pow-
ders.
The sensor can be easily mounted to a wide range of locations.
Two output types are available: ON/OFF digital output (D type)
and continuously variable analog type (A type).
Compact size and low cost.
APPLICATIONS
Toner detectors for copiers, laser printers, etc.
Detectors for coffee and other powders in automatic beverage
vending machines.
Detectors for other types of powders.
PRODUCT IDENTIFICATION
(1) Types of toner sensors
LTS: 3-terminal type self-oscillation formula
TSP: 2-terminal type separate excitation oscillation formula
(2) Sensor diameter
1 : 11mm dia.
(3) Operational voltage
5 : DC.5V
(4) Output type
D : Digital
A : Analog
(5) Shape of case
(6) Output terminal type
C : Directly attached connector
None : Lead lines
(7) Identifying control number
SENSOR LEVEL EVALUATION METHOD
Position the sensor as indicated in the drawing below. The sensor
level is determined as the level at which the sensor detects powder
when powder is supplied from above.
TSP
1 5 D 10 C - 01
(1)
(2) (3) (4) (5) (6) (7)
Sensor
level
Powder
Mesh