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EX-24
2
3
1
4
No.
Part
1
Receiver
2
Stability indicator
(green)
3
Operation indicator
(orange)
4
Emitter
EX-22, EX-26, EX-28, EX-29
3
4
2
MAX
MAX
1
No.
Part
1
Emitter
2
Receiver
3
Stability indicator
(green)
4
Operation indicator
(orange)
5
Sensitivity adjuster
3
SENSITIVITY ADJUSTMENT
To understand sensitivity adjustment, you must first understand the differ-
ence between the "light received" and the "dark" condition.
Do not confuse the "light received" and "dark" condition with the operation
modes "Light-ON" and "Dark-ON"!
Light received
Sensor type
condition
Emitter
Thru-beam
Sensor
Retroreflective
SEN TRONIC
AG
Produkte, Support und Service
Description
Lit when detection is stable accord-
ing to the parameters set.
Lit when the output is ON.
5
Description
Lit when detection is stable accord-
ing to the parameters set.
Lit when the output is ON.
Sensing range increased when
turned clockwise.
See "SENSITIVITY ADJUSTMENT"
on page 2.
Dark condition
Emitter
Receiver
Receiver
Sensing object
Reflector
Reflector
Sensor
Sensing object
Rugghölzli 2
CH - 5453 Busslingen
Light received
Sensor type
condition
Sensor
Diffuse
reflective
Convergent
Sensor
reflective,
Narrow view
reflective
Relation between output and indicators
Light-ON
Stability
Operation
Output
indicator
indicator
ON
OFF
= lit,
= unlit
Procedure
This procedure assumes that "Light-ON" is set for the operation mode. If
"Dark-ON" is the operation mode, the output will behave the other way
around.
Use the accessory screwdriver and turn the adjuster slowly. Using
excessive force will damage the adjuster.
When using EX-22(-PN) at a sensing range of 50mm or less, the
sensitivity adjustment range is extremely narrow.
Sensitivity
Step
adjuster
1
Max
2
Max
3
Max
4
Max
*1
Remember, this only applies if the operation mode is Light-ON.
2
Tel. +41 (0)56 222 38 18
Fax +41 (0)56 222 10 12
Dark condition
Sensor
Sensing object
Sensor
Sensing object
Dark-ON
Sensing
Operation
Output
condition
indicator
Stable
light
OFF
Unstable
light
Unstable
dark
ON
Stable
dark
Description
Turn the sensitivity adjuster fully counter-
clockwise to the minimum sensitivity position
(●).
In the "light received" condition, turn the sen-
sitivity adjuster slowly clockwise to find point
A where the sensor output turns ON.
In the "dark" condition, turn the sensitivity
adjuster clockwise until the sensor output
*1
turns ON.
Turn it back slowly to confirm point B, where
the sensor output just turns OFF.
If the sensor output does not turn ON even
when the sensitivity adjuster is turned fully
clockwise, point B is the position at MAX.
The position exactly between points A and B
is the optimum sensing position.
mailbox@sentronic.com
www.sentronic.com
Stability
indicator
*1
*1
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