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Vaisala HMD70 User Manual

Page 9

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HMD70U/Y Transmitters

U303en-1.1

Operating Manual

1997-07-31

5

3.4

Electrical connections and installation of the current module

Figure 3.4 shows the electrical connections and the installation of the current
module.

INSTALLATION OF
THE CURRENT MODULE 18945HM

1. Take off the jumpers

2. Connect the module; note the
right direction!

3. Connect the power supply

OUTPUT SELECTIONS

0...1V

0...5V

0...10V

0...20mA

current
module

T

RH

RH

RH

RH

T

T

T

T

RH

TEST
CONNECTOR

1

1

1

1

2

3

4 5

current module 0...20 mA

U

U

U

U

RH OFFSET

T OFFSET

Us

RH
out

T
out

GND

V/mA

DC/AC
power supply

V/mA

RH GAIN

T GAIN

Figure 3.4

Electrical connections and installation of the current

module