Mounting Poles / CM305
CM305 47 in. Mounting Pole with Cap

Overview

The CM305 is a 119 cm (47 in.), stainless-steel, 1.5-in. IPS vertical pole. It is designed for mounting sensors, enclosures, or other instruments, and is an ideal mount for remote sensors such as a tipping bucket rain gage or net radiometer. Our CS700, TB4, and 385 rain gages are typically mounted to the CM305 via the CM240 leveling base. This mounting pole can be embedded directly into a concrete foundation or used with a pedestal kit. (See Ordering Info on the web page.)

Note: Grounding connections from the mounting pole to the system’s main tripod/tower or to the ground are important to help protect the system and measurements. The parts to establish these grounding connections are not included with the mounting pole.

Images

Labeled hole positions

Specifications

Material Stainless-steel pipe 1.5 IPS
Outer Diameter 4.8 cm (1.9 in.)
Pipe Size 3.81 cm (1.5 in.) IPS
Length 119 cm (47 in.)
Weight 6.4 kg (14 lb)

Short Leg Kit
Material Stainless-steel tubing 1.5 OD
Leg Length 58 cm (23 in.)
Pedestal Height and Radius
  • Note: The pedestal height is foot/ground to bottom of mast vertical distance, and it is adjustable to the following:
  • 11 cm (4 in.) height and a 66 cm (26 in.) radius for Hole F
  • 22 cm (9 in.) height and a 63 cm (25 in.) radius for Hole E
  • 27 cm (11 in.) height and a 59 cm (23 in.) radius for Hole D
  • 33 cm (13 in.) height and a 55 cm (22 in.) radius for Hole C
  • 36 cm (14 in.) height and a 51 cm (20 in.) radius for Hole B
  • 41 cm (16 in.) height and a 46 cm (18 in.) radius for Hole A

Long Leg Kit
Material Stainless-steel tubing 1.5 OD
Leg Length 99 cm (39 in.)
Pedestal Height and Radius
  • Note: The pedestal height is foot/ground to bottom of mast vertical distance, and it is adjustable to the following:
  • 20 cm (8 in.) height and a 105 cm (41 in.) radius for Hole F
  • 41 cm (16 in.) height and a 97 cm (38 in.) radius for Hole E
  • 50 cm (20 in.) height and a 91 cm (36 in.) radius for Hole D
  • 59 cm (23 in.) height and a 85 cm (34 in.) radius for Hole C
  • 66 cm (26 in.) height and a 77 cm (30 in.) radius for Hole B
  • 73 cm (29 in.) height and a 69 cm (27 in.) radius for Hole A

J-bolt Kit
J-bolt Material Stainless steel
J-bolt Size 1/2-13 in. x 12 in.

Compatibility

Pedestal Kits

Three pedestal kits are offered as options for this mounting pole (see Ordering Info).

J-Bolt Kit

The J-Bolt Kit is for permanent installations. With this kit, customers can more easily control the pole‘s placement—ensuring that the pole remains in a vertical position. J-bolts are installed in a concrete foundation using the template provided with the kit. Leveling nuts allow adjustment of the pole’s position.

Short Leg Kit

This pedestal kit is adequate for many temporary installations and for many situations where it is impractical to use a concrete foundation. The short leg kit includes three 23” legs, three metal feet, and a pedestal base. The feet can be secured to the ground by using three 17049 Grounding Spikes (purchased separately).

Long Leg Kit

The long leg kit provides more stability for locations where the feet cannot be secured (e.g., pole sitting on a roof), for extended poles, or for areas that experience high wind speeds. This kit includes three 39” legs, three metal feet, and a pedestal base. The feet can be secured to the ground by using three 17049 Grounding Spikes (purchased separately).

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