81503720 Crouzet USA, 81503720 Datasheet - Page 10

• Manufacturer Part Number: 81503720
• Description: ADJUSTABLE PNEUMATIC TIMER
• Manufacturer: Crouzet USA

Specifications of 81503720

• Delay Time Range: 0.1s To 30s
• Timing Adjustment: Knob
• Relay Mounting: Panel
• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4
50
Function
Symbol
Characteristics
Timing
Operating pressure
Flow at 6 bars
Orifice diameter
Accuracy
Min. reset time
Connection - On sub-base page 4/14-4/15
Operating temperature
Mechanical life
Weight
Accessories
Panel mounting adaptator
Weight
Principle
The operation of these pneumatic timers is similar to that of
electronic timers (circuit with capacitor/resistor)
Timing by charging of reservoir
The reservoir fills via the flow restrictor until the switching point
of the timer output is reached (positive or negative).
The non-return valve allows the reservoir to be emptied rapidly
for the next timing.
Dimensions
■
Timers (with adjustable timing)
ATEX version products are available in the following catologues: Pneumatic products for explosive atmospheres or on our website
www.crouzet.com
81 503 710 - 81 506 710
81 503 720 - 81 506 720
81 503 725 - 81 506 725
60 s adjustable (60 s max.)
Also available in ATEX version
for use in potentially explosive
atmospheres in accordance
with 94/9/EC Directive
positive
negative
L (mm)
78
92
125
s
bar
Nl/min
mm
%
s
°C
operations
g
g
81 503 710
0.1 • 15
2 ➞ 8
170
2.7
± 5
<0.1
-5 +50
>
90
79 451 698
53
10
7
-
l
l
Principle of operation
with positive output
81 506 710
0.1 • 15
2 ➞ 8
170
2.7
± 5
<0.1
-5 +50
>
90
79 451 698
53
10
7
-
l
l
81 503 720
0.1 • 30
2 ➞ 8
170
2.7
± 5
<0.1
-5 +50
>
100
79 451 903
53
10
Adaptator 79 451 . . .
7
-
l
l
Time
81 506 720
0.1 • 30
2 ➞ 8
170
2.7
± 5
<0.1
-5 +50
>
100
79 451 903
53
10
7
-
l
l
For panel mounting, a pre-drilled
hole Ø 10.5 mm si required
0.1 • 60
2 ➞ 8
170
2.7
± 5
<0.1
-5 +50
>
120
81 503 725
10
7
-
-
-
l
l
with negative output
www.crouzet.com
0.1 • 60
2 ➞ 8
170
2.7
± 5
<0.1
-5 +50
>
120
81 506 725
10
7
-
-
-
l
l
Time