ZSE40-01-22L SMC Corporation, ZSE40-01-22L Datasheet - Page 2

• Manufacturer Part Number: ZSE40-01-22L
• Description: VACUUM SWITCH, HIGH PRESSURE
• Manufacturer: SMC Corporation

Specifications of ZSE40-01-22L

• Output Type: NPN, 2 analog out
• Pressure, Operating: 0 to 14.69 psi
• Size, Port: 1⁄8" R
• Lead Free Status / Rohs Status: RoHS Exempt Product

16-2-16
High speed response: 2.5 ms
or less
With anti-chattering function
Stable switch output is possible even with sudden
Compound pressure (ZSE40F)
Able to detect suction pressure (vacuum
pressure) and release pressure (positive
pressure) with a single pressure switch.
Anti-chattering function
Devices such as large bore cylinders and high-flow vacuum
ejectors consume a large volume of air when they operate, and
this may cause a momentary drop in the primary pressure. This
function prevents such momentary pressure drops from being
detected as abnormal pressures by allowing the response time
selection to be changed.
[Selectable response times: t]
2.5 ms (normal), 24 ms, 192 ms or 768 ms
The normal setting is selected when shipped from the factory.
(Operating principle)
The pressure values measured within the user-selected response
time are averaged, and switch output (ON/OFF) is determined by
comparing this averaged pressure value with the set pressure.
Auto shift function
Erroneous operation may occur if there is fluctuation in the
primary pressure.
The auto shift function compensates for pressure changes to
ensure proper ON/OFF switch response during such fluctuations.
(Operating principle)
At the point when the primary pressure fluctuates, the set
pressure value is compensated by setting the auto shift input
(external input) to low (no-voltage) input, using the pressure
measured at that point as a standard.
With auto shift function
Allows switch output unaffected by variations in
primary pressure.
3 types of piping
Different piping methods are
possible to accommodate the
installation location.
Without using auto shift
When the primary pressure fluctuates, a correct determination becomes impossible.
When using auto shift
function is used
operation when
anti-chattering
Switch output
Switch output
Switch output
Switch output
when normal
operation
Auto shift
input
1, 2
1, 2
Set value
Set value
Pressure
Set value
Pressure
Pressure
OFF
OFF
OFF
OFF
ON
P1
P2
P1
P2
ON
ON
ON
Hi
Lo
P1
P2
Repeatability
±0.2% F.S. ±1 digit or less
Primary pressure normal
Primary pressure normal Primary pressure drop
Set value compensation Set value compensation
(Averaging)
t (ms)
5 ms or more
Primary pressure drop Primary pressure increase
Momentary change
Does not turn ON
IP65 compatible
Dusttight/Splash proof type
or less
10 ms
Primary pressure increase
(Averaging)
[
t (ms)
Switch output response time
Does not turn OFF
when auto shift is input.
Time →
Time →
Time →
Time →
Time →
Time →
Time →
Time →
]