Vaisala POWER-1 User manual

Vaisala
Brand
Vaisala
Model
POWER-1
Type
User manual
Installation Instructions
POWER-1 Power Supply Module
www.vaisala.com
1 / 4
Ref. M210624EN-B
POWER-1 POWER SUPPLY MODULE
Operating voltage 100 ... 240 VAC, 50/60 Hz
Output 24 DC, 500 mA
Connections Screw terminals for 0.5 ... 2.5 mm
2
wire (AWG 20 ... 14)
Operating temperature -40 ... +60 ºC (-40 ... +140 ºF)
Storage temperature -40 ... +70 ºC (-40 ... +158 ºF)
Required housing classification IP65
UL file number E249387
The POWER-1 power supply module is designed for installation in Vaisala transmitters that
have a suitable module slot and power requirements. Compatible transmitters include HMT330,
DMT340, DMT345&346, MMT330, PTU300 and PTB330. Refer to the User’s Guide of your
transmitter for details.
The package includes the following parts:
Power supply module
Fastening screws
Wires for connecting the power supply module to a transmitter’s power terminals
Optional: mains power cable (with US, AUS, EUR or UK plug) and cable gland M20x1.5
Optional: conduit fitting M20x1.5 for NPT 1/2" conduit
Figure 1 POWER-1 Power Supply Module
WARNING
Do not detach the power supply module from the transmitter when the
power is on.
Do not connect the mains power to power supply module when it is
not installed in the transmitter.
Always connect the protective ground terminal!
*
M
210624
EN
*
Installation Instructions
POWER-1 Power Supply Module
www.vaisala.com
2 / 4
Ref. M210624EN-B
Installation and Wiring
The mains power connection may be connected to the power supply module only by an
authorized electrician. A readily accessible disconnect device must be incorporated in the fixed
wiring.
The power supply module must be installed in a housing of sufficient sealing classification.
Dewatering (drainage) must be facilitated. The temperature inside the housing must not rise
above 60ºC.
1. Disconnect the power and open the transmitter cover.
2. If necessary, install the cable gland or conduit fitting for the mains voltage cable.
3. Connect the wires from the power supply module's terminals marked with + and - to the
power terminals on the motherboard of the transmitter.
4. Fasten the power module to the bottom of the transmitter housing with four screws. Refer
to Figure 2 below for the orientation of the module.
5. Thread the mains voltage cable through the cable gland or cable conduit.
6. Connect the mains voltage wires to the power supply module terminals marked with
N and L.
7. Attach the grounding wire to the grounding terminal. In the power cable supplied by
Vaisala, the grounding wire is striped green-yellow, and has a suitable connector.
8. Route the cable along the side of the module and tighten the cable gland (if used).
9. Close the cover. Connect the power and verify that the transmitter starts up properly.
Figure 2 POWER-1 Installed in an HMT330 Transmitter
Grounding terminal (under the cable)
Connect the grounding wire here
Route the cable along the side of the
module
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Vaisala POWER-1 User manual

Vaisala
Brand
Vaisala
Model
POWER-1
Type
User manual
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