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| 型号： | 81921702 |
| 厂商： | Crouzet USA |
| 文件页数： | 13/14页 |
| 文件大小： | 0K |
| 描述： | PNEUM POS DETECT N.C. LVR ROLLER |
| 其它有关文件： | Declaration of Conformity |
| 产品目录绘图： | 81921702 |
| 标准包装： | 1 |
| 系列： | * |
| 产品目录页面： | 2861 (CN2011-ZH PDF) |
| 其它名称： | 81921702-ND 966-1013 |
Ampliers for mounting on installation plan
■ Gap
sensor
Also available in ATEX version for use in poten-
tially explosive atmospheres in accordance with
94/9/EC Directive
Part numbers
Simple amplifiers (for 81 372 201/401)
Sensitive amplifiers (for 81 371 401)
Version
81 502 230
-
positive
81 505 230
-
negative
-
81 502 320
positive
-
81 505 320
negative
Symbol
Characteristics
Pressure to make
Operating pressure (non-lubricated air)
Orifice diameter
Average consumption at 4 bars
Permissible overload for 1 hour
Operating temperature
Mechanical life
Weight
mb
bar
mm
Nl/min
mb
°C
operations
g
10 → 20
2 → 8
2.5
5
800
-5 ? +50
3 x 10 6
150
10 → 20
2 → 8
2.5
5
800
-5 ? +50
3 x 10 6
150
1 → 4
2 → 6
2.5
5
800
-5 ? +50
3 x 10 6
185
1 → 4
2 → 6
2.5
5
800
-5 ? +50
3 x 10 6
185
Connections
Used for gaps up to 25 mm.
The supply to the sensor should be made via a
pressure regulator or one-way flow restrictor (see
page 52
Connection - sub-base
Black barb
81525101
10 max.
Black barb
81527001
2
Principle of operation
81 502 230
81 505 230
Simple amplifiers
An output at normal industrial pres-
Pilot pressure
Positive output
Negative output
sure is delivered on a low pressure
input.
NB: Hysteresis is 20% of the pilot
pressure.
Supply
pressure
Pa
1- pilot
2- supply
3- output
Sensitive amplifiers
An output at normal industrial
pressure is delivered on a very low
5
Pilot pressure
81 502 320
81 505 320
pressure input.
4
3
Note: The specifications are given
for a supply pressure of 6 bars,
and for detection at the mid-point
of the gap.
2
1
0
1
2
3
4
5
6
7
8
Supply
pressure
Pa
Dimensions
81 502 238 - 81 505 231
81 502 322 - 81 505 321
Push-in connection for
semi-rigid tubing
? 4 mm (NFE 49100)
Other information
With gap sensors, use an amplifier with negative output if you require a signal on interruption of the jet.
ATEX version products are available in the following catologues: Pneumatic products for explosive atmospheres or on our website
www.crouzet.com
www.crouzet.com
33
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