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070_D
Outdoor Sensor 070
Accessories
12/12
Replaces: 05/07
Installation & Operation Manual
The Outdoor Sensor 070 provides accurate measurement of the outdoor air temperature.
Many controls and thermostats can connect to the 070 to measure and display the
outdoor temperature.
Installation - Outdoor Sensor 070
STEP ONE
NOTE: The temperature sensor (thermistor) is built into the 070 enclosure.
• Remove the screw and pull the front cover off the sensor enclosure.
• The 070 can either be mounted directly onto a wall or a 2” x 4” electrical box. When
• In order to prevent heat transmitted through the wall from affecting the sensor read-
• The 070 should be mounted on a wall which best represents the heat load on the
• The 070 should be installed at an elevation above the ground that will prevent
MOUNTING THE SENSOR
the 070 is wall mounted, the wiring should enter through the back or bottom of the
enclosure. Do not mount the 070 with the conduit knockout facing upwards as rain
could enter the enclosure and damage the sensor.
ing, it may be necessary to install an insulating barrier behind the enclosure.
building (a northern wall for most buildings and a southern facing wall for buildings
with large south facing glass areas). The 070 should not be exposed to heat sources
such as ventilation or window openings.
accidental damage or tampering.
Sensor with rear
entry wiring
A Watts Water Technologies Company
Sensor with bottom
entry wiring
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© 2012
Sensor mounted
onto 2" x 4"
electrical box
070_D - 12/12
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STEP TWO
WIRING AND TESTING THE SENSOR
• Connect 18 AWG or similar wire to the two terminals provided in the enclosure and
run the wires from the 070 to the control. Do not run the wires parallel to telephone
or power cables. If the sensor wires are located in an area with strong sources of
electromagnetic interference (EMI), shielded cable or twisted pair should be used
or the wires can be run in a grounded metal conduit. If using shielded cable, the
shield wire should be connected to the Com terminal on the control and not to earth
ground.
Follow the sensor testing instruction in this brochure and connect the wires to the
•
control.
• Replace the front cover of the sensor enclosure.
Wires from outdoor
sensor to control’s
outdoor sensor and
sensor common
terminals
Sensor is built into
the enclosure
Sensor Testing Instructions
A good quality test meter capable of measuring up to 5,000 k (1 k = 1000) is required to
measure the sensor resistance. In addition to this, the actual temperature must be measured
with either a good quality digital thermometer, or if a thermometer is not available, a second
sensor can be placed alongside the one to be tested and the readings compared.
First measure the temperature using the thermometer and then measure the resistance of
the sensor at the control. The wires from the sensor must not be connected to the control
while the test is performed. Using the chart on the following page, estimate the temperature
measured by the sensor. The sensor and thermometer readings should be close. If the test
meter reads a very high resistance, there may be a broken wire, a poor wiring connection
or a defective sensor. If the resistance is very low, the wiring may be shorted, there may
be moisture in the sensor or the sensor may be defective. To test for a defective sensor,
measure the resistance directly at the sensor location.
Do not apply voltage to a sensor at any time as damage to the sensor may result.
A Watts Water Technologies Company
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© 2012 070_D - 12/12
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Resistance Table
Temperature Resistance
°F °C
-50 -46 490,813
-45 -43 405,710
-40 -40 336,606
-35 -37 280,279
-30 -34 234,196
-25 -32 196,358
-20 -29 165,180
-15 -26 139,402
-10 -23 118,018
-5 -21 100,221
0 -18 85,362
5 -15 72,918
10 -12 62,465
15 -9 53,658
20 -7 46,218
25 -4 39,913
30 -1 34,558
35 2 29,996
40 4 26,099
Temperature Resistance
°F °C
45 7 22,763
50 10 19,900
55 13 17,436
60 16 15,311
65 18 13,474
70 21 11,883
75 24 10,501
80 27 9,299
85 29 8,250
90 32 7,334
95 35 6,532
100 38 5,828
105 41 5,210
110 43 4,665
115 4 6 4 ,18 4
120 49 3,760
125 52 3,383
130 54 3,050
135 57 2,754
Temperature Resistance
°F °C
140 60 2,490
145 63 2,255
150 66 2,045
155 68 1,857
160 71 1,689
165 74 1,538
170 77 1,403
175 79 1,281
180 82 1,172
185 85 1,073
190 88 983
195 91 903
200 93 829
205 96 763
210 99 703
215 102 648
220 104 598
225 107 553
Technical Data
Outdoor Sensor 070
Literature 070_D, 070_C
Packaged weight 0.4 lb. (180 g)
Dimensions 4-1/2” H x 2-7/8” W x 1-1/2” D (73 x 114 x 38 mm)
Enclosure White PVC plastic, NEMA type 2
Approvals CSA C US
Operating range
Sensor
-60 to 140°F (-51 to 60°C)
NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
A Watts Water Technologies Company
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© 2012 070_D - 12/12
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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.
The tekmar Limited Warranty to the Purchaser on the Products sold hereunder is a manufacturer’s passthrough warranty which the Purchaser is authorized to pass through to its customers. Under the Limited
Warranty, each tekmar Product is warranted against defects in workmanship and materials if the Product
is installed and used in compliance with tekmar’s instructions, ordinary wear and tear excepted. The passthrough warranty period is for a period of twenty-four (24) months from the production date if the Product is
not installed during that period, or twelve (12) months from the documented date of installation if installed
within twenty-four (24) months from the production date.
The liability of tekmar under the Limited Warranty shall be limited to, at tekmar’s sole discretion: the cost of parts
and labor provided by tekmar to repair defects in materials and / or workmanship of the defective product; or to
the exchange of the defective product for a warranty replacement product; or to the granting of credit limited to
the original cost of the defective product, and such repair, exchange or credit shall be the sole remedy available
from tekmar, and, without limiting the foregoing in any way, tekmar is not responsible, in contract, tort or strict
product liability, for any other losses, costs, expenses, inconveniences, or damages, whether direct, indirect,
special, secondary, incidental or consequential, arising from ownership or use of the product, or from defects in
workmanship or materials, including any liability for fundamental breach of contract.
The pass-through Limited Warranty applies only to those defective Products returned to tekmar during the
warranty period. This Limited Warranty does not cover the cost of the parts or labor to remove or transport
the defective Product, or to reinstall the repaired or replacement Product, all such costs and expenses being
subject to Purchaser’s agreement and warranty with its customers.
Any representations or warranties about the Products made by Purchaser to its customers which are different
from or in excess of the tekmar Limited Warranty are the Purchaser’s sole responsibility and obligation. Purchaser shall indemnify and hold tekmar harmless from and against any and all claims, liabilities and damages
of any kind or nature which arise out of or are related to any such representations or warranties by Purchaser
to its customers.
The pass-through Limited Warranty does not apply if the returned Product has been damaged by negligence by
persons other than tekmar, accident, fire, Act of God, abuse or misuse; or has been damaged by modifications,
alterations or attachments made subsequent to purchase which have not been authorized by tekmar; or if the
Product was not installed in compliance with tekmar’s instructions and / or the local codes and ordinances; or if
due to defective installation of the Product; or if the Product was not used in compliance with tekmar’s instructions.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, WHICH THE GOVERNING LAW ALLOWS PARTIES TO CONTRACTUALLY EXCLUDE, INCLUDING, WITHOUT LIMITATION,
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, DURABILITY OR DESCRIPTION OF THE PRODUCT, ITS NON-INFRINGEMENT OF ANY RELEVANT PATENTS OR
TRADEMARKS, AND ITS COMPLIANCE WITH OR NON-VIOLATION OF ANY APPLICABLE ENVIRONMENTAL, HEALTH OR SAFETY LEGISLATION; THE TERM OF ANY OTHER WARRANTY NOT HEREBY CONTRACTUALLY EXCLUDED IS LIMITED SUCH THAT IT SHALL NOT EXTEND BEYOND TWENTY-FOUR (24)
MONTHS FROM THE PRODUCTION DATE, TO THE EXTENT THAT SUCH LIMITATION IS ALLOWED BY THE
GOVERNING LAW.
Product Warranty Return Procedure All Products that are believed to have defects in workmanship or materials must be returned, together with a written description of the defect, to the tekmar Representative assigned to
the territory in which such Product is located. If tekmar receives an inquiry from someone other than a tekmar
Representative, including an inquiry from Purchaser (if not a tekmar Representative) or Purchaser’s customers,
regarding a potential warranty claim, tekmar’s sole obligation shall be to provide the address and other contact
information regarding the appropriate Representative.
Product design, software and literature are Copyright ©2012 by tekmar Control Systems Ltd.,
A Watts Water Technologies Company. Head Offi ce: 5100 Silver Star Road, Vernon, B.C.
Canada V1B 3K4, 250-545-7749, Fax. 250-545-0650
All specifications are subject
to change without notice
Web Site
: www.tekmarControls.com
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