Vaisala MMT310 - Manual (Page 19)

Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 19
NOTE It is recommended that the supply is switched off before connecting the cable
plug to transmitter during installation or service/calibration.
Mounting the Transmitter with Optional
Rain Shield
If you mount MMT310 outdoors, use a shelter to protect the transmitter.
An MMT310 rain shield is available from Vaisala as an optional
accessory (order code ASM211103).
NOTE Vaisala does not recommend installing the transmitter outdoors with the
smaller mounting plate (without flanges). Use the larger mounting plate
with flanges for outdoor installations.
Mounting the Rain Shield with Larger
Transmitter Mounting Plate
1311-251
Figure 4 Rain Shield with Large Mounting Plate
The following numbers refer to Figure 4 above:
1 = Transmitter’s larger mounting plate: attaches to rain shield from
flanges with four Ø 4.5 mm screws (not provided).
2 = Rain shield: Four Ø 8.5 mm holes for (U-bolt) mounting. The
maximum diameter of the pole in U-bolt mounting is 60 mm.
3 = Rain shield: Four Ø 4.5 mm screw holes for mounting.