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| 型號： | PM-H922LC |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 0-5Vdc Current transducer |
| 中文描述： | 0 - 5Vdc時電流傳感器 |
| 文件頁數(shù)： | 2/3頁 |
| 文件大?。?/td> | 84K |
| 代理商： | PM-H922LC |
Page 2
0-5Vdc Current transducer
PM-Hx22
Data Sheet Ref: 90501177
Issue: 5.1
International Tel: +44 1732 861225
UK Sales Tel: 0845 345 7253
International Fax: +44 1732 861226
UK Sales Fax: 0845 345 7353
www.sontay.com
Whilst every effort has been made to ensure the accuracy of this specification, Sontay cannot accept responsibility for damage, injury, loss or
expense resulting from errors or omissions. In the interest of technical improvement, this specification may be altered without notice.
90800066 Issue 1
Installation
Installation notes (continued)
1. The
PM-Hx22
range of current transducers
should only
be installed by a competent, suitably trained technician,
experienced in installation with hazardous voltages.
(>50Vac & <1000Vac
or
>75Vdc & 1500Vdc)
2. Ensure that all power is disconnected before carrying out
any work on the
PM-Hx22
range. Never rely on status
indicating devices only to determine if power is present
in a conductor.
3. When installing the split-core version ensure that there
are no dirt particles that will prevent good contact be-
tween the core pieces when the device is closed.
4. Mount the sensor in a suitable location using the two
mounting holes in the base of the unit or use the self-
gripping iris which eliminates the need for drill mounting
(split core only).
5. Maximum output cable size is 2.5mm2, care must be
taken not to over tighten the screw terminals.
6. Insure that the range selection slider is in the correct
position for the current being monitored. Excessive cur-
rent can damage the sensor.
Notes
Low conductor current:
If the load is low you can loop the conductor through the
sensor to provide adequate current and ensure accuracy.
Example:-
Load is 2.5A, pass the cable through the aperture 3 times
and you will have a total load of 7.5A and set the amp range
selector switch to 10A. See fig 1.
High conductor current and large diameter cables:
If the load is greater than the maximum specified for the
transformer or the cable diameter is greater than the aper-
ture of the current switch, you must use a suitable current
transformer. See fig 2.
Example:-
When monitoring loads greater than 200A (when using the
PM-H722HC), install a suitable CT with a 5A secondary.
Pass a cable connected to the secondary winding of the
current transformer through the aperture ten times and set
the amp range selector switch to 50A.
(Ring type shown). Fig 1.
Fig 2.
Wiring example
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