Vaisala HMP228 Manuel d'utilisateur télécharger pdf (Page 80)

HMP228

Appendix 3: Power supply module M210282en-A

2. INSTALLING THE POWER SUPPLY MODULE

The mains power connection may be connected to the power supply module

only by an authorized electrician. A readily accessible disconnect device shall

be incorporated in the fixed wiring (IEC 950).

1. Remove the plastic plug in the transmitter housing and replace it with the

cable gland.

2. Fasten the power supply module to the bottom of the housing with four

screws

3. Select the correct mains voltage with voltage selector switch (115/230).

4. Attach the grounding wire screw (M4) and washer to the protective

ground terminal on the right-hand side of the module.

5. Attach the wires from the power supply module to the power terminal on

the main board of the transmitter (see figure below).

When the power supply module is on, the power on LED is lit.

NOTE

The jumper in connector X3 has to be in position ON; otherwise no power is

supplied to the transmitter.

- ~

24V + ~

from power supply module

BLK

RED

BLK

RED

replace plastic plug with cable gland

for O 7...12 mm cable

AC mains terminal

4 pcs M3 screws for mounting

(prefix with fibre washers)

voltage selector switch

115/230 VAC

M4 screw and washer for

protective ground terminal

-+-+

update the instrument label with

the correct supply voltage label

according to the selected operating

voltage

power supply cable: strip wires

only 5 mm

use crimped terminal for ground wire if

stranded wire is used

probe cable gland

signal cable gland

arrange signal cable wires so that

they do not reach bare AC wires

when the cover is closed

off

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 114 115

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Vaisala HMP228 Manuel d'utilisateur Page 80

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