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Snow/Ice Sensor 090/094, Sensor Socket 091

Installation & Operation Manual

090

01/14

Snow Melting

Replaces: 07/09

090_D - 01/14

1 of 8

A Watts Water Technologies Company

The tekmar Snow / Ice Sensor 090 / 094

and tekmar Sensor Socket 091 are used

with all tekmar snow / ice melt controls.

The 090 has a 65’ (20 m) cable while the

094 has a 208’ (63 m) cable.

The Snow / Ice Sensor is designed to sit

flush with the slab surface after being

mounted into the Sensor Socket. The

socket is installed directly into the snow

melt slab halfway between the heating

elements or pipes.

The sensor measures the slab temperature,

sensor surface temperature and sensor

surface moisture level.

Snow/Ice Sensor 090/094

Snow/Ice Sensor Socket 091

3–7/16"

(87 mm)

1–3/4"

(45 mm)

3/16"

(5 mm)

090 Cable length 65' (20 m)

094 Cable length 208' (63 m)

Ø 7/8" (22 mm)

3–13/16"

(97 mm)

3–1/8" (80 mm)

3–1/2" (89 mm)

3/4"

(19 mm)

Snow/Ice Sensor 090/094

Automatic snow/ice detection

Slab temperature sensing

Long wire included so in field splicing

is not necessary

Designed for long life in driveway and

walkway installations

For use with tekmar Snow Melting

Control type: 654, 661, 662, 664, 665

or 667.

•

Snow/Ice Sensor Socket 091 Features

Provides mounting solution for

Snow/Ice Sensor 090/094

Includes mounting plate

•

Summary of content (8 pages)

PAGE 1
090_D 01/14 Snow/Ice Sensor 090/094, Sensor Socket 091 Snow Melting Replaces: 07/09 Installation & Operation Manual The tekmar Snow / Ice Sensor 090 / 094 and tekmar Sensor Socket 091 are used with all tekmar snow / ice melt controls. The 090 has a 65’ (20 m) cable while the 094 has a 208’ (63 m) cable. The Snow / Ice Sensor is designed to sit flush with the slab surface after being mounted into the Sensor Socket.
PAGE 2
It is your responsibility to ensure that this sensor is safely installed according to all applicable codes and standards. tekmar is not responsible for damages resulting from improper installation and/or maintenance. Read this Manual BEFORE using this equipment. Failure to read and follow all safety and use information can result in personal injury, property damage, or damage to the equipment. Keep this Manual for future reference. Step 1 - Check the Contents Check the contents of this package.
PAGE 3
• Vehicle tire and pedestrian traffic can track water and contaminants onto the snow melt area. If the snow / ice sensor is located in the traffic area, snow melting will be triggered by the passing traffic. This may be desirable in commercial areas where excessive traffic can cause the surface to become icy. In residential installations, the amount of traffic is usually limited, and it may be desirable to locate the snow / ice sensor away from the traffic area.
PAGE 4
1. Cut four pieces of rebar at least 12" (300 mm) long. 2. Drive the rebar into the ground through each of the mounting plate rebar holes. Leave approximately 2" (50 mm) of rebar above the ground. 3. Cut several 12" (300 mm) pieces of steel wire. 4. Form a “U” shape and pull wire through the rebar tie hole from the bottom to the top side. 5. Repeat by pulling the “U” shape from the top to the bottom side. 6. Repeat (4) and (5) for each of the four corners. 7. Cross the wire, then wrap around the rebar. 8.
PAGE 5
Placement in Existing 091 Socket -----------------------------------------------Current versions of the Snow / Ice Socket 091 use #6-32 screws. Previous versions of the 091 used smaller #4-40 screws. When replacing an 090, both sets of screws are provided. It is recommended to try the smaller screws first to avoid cross threading.
PAGE 6
Step 4 - Test the Sensor When performing these tests: • The sensor head should be installed in the slab. • The five cable wires at the control should be disconnected. • Use a good quality electrical testing meter with an ohm scale range of 0 to 2,000,000 Ohms. The sensor has two 10k Ohm thermistors. One reads slab surface temperature, and the other checks sensor heater temperature.
PAGE 7
Technical Data Snow / Ice Sensor 090 In-slab, 65 ft. (20 m) Wire Literature 090_D, 090_C Packaged weight 4.4 lb (2000 g) Dimensions 1-3/4" H x 3-7/16" OD (45 mm H x 87 mm OD) Sensor material Silicon brass Cable Material 65 ft.
PAGE 8
Limited Warranty and Product Return Procedure Limited Warranty The liability of tekmar under this warranty is limited. The Purchaser, by taking receipt of any tekmar product (“Product”), acknowledges the terms of the Limited Warranty in effect at the time of such Product sale and acknowledges that it has read and understands same.