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Page 5

Input and output configuration

Gain access to the switches by removing
the cover on the top of the unit; a slot is
provided to insert a suitable lever such as
a small screwdriver blade.

Please note:

Span and Zero (front panel

adjustments) should be checked and
trimmed as required after range changing.
Typical error without trimming will be in
the order of 1%.

Setting Input options

The input signal must be connected to the
appropriate input terminals (

see Input

Connections

).

Refer to the table and set switches SW2-1
and SW2-2 as appropriate for the input
signal i.e.

true zero

or r

aised zero

.

Setting output options

Output signal Type:

Refer to the

illustration and set SW1 to either

mA

output

or

Voltage output

.

Output signal range:

Refer to the table

and set switches SW2-3 to SW2-8 as
required.

1 2 3 4 5 6 7 8

SW2

SW1

Output

+

-

+

-

+

-

Suppl

y

1

2

3

4

on

mA

V

SW1

- mA output

V output

SW2

- See table

on

Input options

Output options

SW2

1

2

SW2

3

4

5

6

7

8

True zero

1

0

0-10mA

1

0

0

1

0

0

Raised zero

0

1

0-20mA

1

0

1

0

0

0

4-20mA

0

1

1

0

0

0

0 = switch off

0-10V

1

0

0

0

1

1

1 = switch on

2-10V

0

1

0

0

1

1

Содержание COM-3B

Страница 1: ...SIGNAL ISOLATOR Type COM 3B User Guide Document Ref udcom 3b vp Rev 0...

Страница 2: ...tents Safety instructions warnings 1 Installation 2 Dimensions fixing 2 Wiring and connections 3 Power supply connections 3 Input and output connections 4 Input and output configuration 5 Specificatio...

Страница 3: ...not be exceeded If the instrument is used in a manner not specified the protection provided by the instrument may be compromised The instrument must be installed in an enclosure that provides adequate...

Страница 4: ...unlight and ensure the ambient temperature inside the enclosure that the unit is mounted in will not exceed our specification Fixing COM Series Modules are designed to be be clipped to a mounting rail...

Страница 5: ...ed on the top of the module Input connections are provided at the bottom of the module Power supply connections WARNING Check that the supply voltage on the data label on side of instrument is suitabl...

Страница 6: ...put connections current sink WARNING Current sink output is available only to order It is not available on the standard unit The data label on the side of the module will state whether this connection...

Страница 7: ...erminals see Input Connections Refer to the table and set switches SW2 1 and SW2 2 as appropriate for the input signal i e true zero or raised zero Setting output options Output signal Type Refer to t...

Страница 8: ...of full scale LOAD RESISTANCE EFFECT 0 001 of span 100 ohms change RESPONSE TIME 200 ms ISOLATION The input and output are isolated from each other and from the power supply Maximum voltage 250 V RMS...

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