12727679-E6V2_FCC IC RF 915MHz_wifi Exposure Report_MC_Final

FCC ID: 2ASM7-WMC01

RF Exposure Info

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      CERTIFICATION TEST REPORT
               Report Number. : 12727679-E6V2
      Applicant :    WARMBOARD INC
                     8035 SOQUEL DR
                     APTOS, CA 95003, U.S.A.

         Model :     WMC-01

         FCC ID :    2ASM7-WMC01

             IC :    24839-WMC01

EUT Description :    MANIFOLD CONTROLLER WITH LORA WIRELESS
                     COMMUNICATION

Test Standard(s) :   FCC 47 CFR PART 1 SUBPART I
                     FCC 47 CFR PART 2 SUBPART J
                     ISED RSS – 102 ISSUE 5



                              Date Of Issue:
                              April 09, 2019


                             Prepared by:
                       UL Verification Services Inc.
                          47173 Benicia Street
                       Fremont, CA 94538, U.S.A.
                          TEL: (510) 319-4000
                          FAX: (510) 661-0888




                     NVLAP Lab code: 200065-0


REPORT NO: 12727679-E6V2                                                                       DATE: APRIL 09, 2019
FCC ID: 2ASM7-WMC01                                                                               IC: 24839-WMC01

                                                  Revision History

            Issue
 Rev.       Date               Revisions                                                                Revised By
  V1         4/4/2019          Initial Issue                                                            --
  V2         4/9/2019          Updated report to address TCB’s questions                                Tina




                                     Page 2 of 10
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 319-4000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 12727679-E6V2                                                                                     DATE: APRIL 09, 2019
FCC ID: 2ASM7-WMC01                                                                                             IC: 24839-WMC01

                                               TABLE OF CONTENTS
1.     ATTESTATION OF TEST RESULTS ................................................................................. 4

2.     TEST METHODOLOGY ..................................................................................................... 5

3.     REFERENCES ................................................................................................................... 5

4.     FACILITIES AND ACCREDITATION ................................................................................. 5

5.     DESCRIPTION OF EUT ..................................................................................................... 5

6.     MAXIMUM PERMISSIBLE RF EXPOSURE ....................................................................... 6
     6.1.    FCC RULES ................................................................................................................ 6
     6.2.    IC RULES .................................................................................................................... 7
     6.3.    EQUATIONS................................................................................................................ 8
     6.4.    IC EXEMPTION ........................................................................................................... 9

7.     RF EXPOSURE RESULTS ................................................................................................10




                                     Page 3 of 10
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 319-4000    FAX: (510) 661-0888
     This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 12727679-E6V2                                                                       DATE: APRIL 09, 2019
FCC ID: 2ASM7-WMC01                                                                               IC: 24839-WMC01

1. ATTESTATION OF TEST RESULTS
COMPANY NAME:                       WARMBOARD INC
                                    8035 SOQUEL DR
                                    APTOS, CA 95003, U.S.A.

EUT DESCRIPTION:                    MANIFOLD CONTROLLER WITH LORA WIRELESS
                                    COMMUNICATION

MODEL:                              WMC-01


                                          APPLICABLE STANDARDS
                               STANDARD                                                 TEST RESULTS
          FCC PART 1 SUBPART I & PART 2 SUBPART J                                            Complies
                        ISED RSS 102 ISSUE 5                                                 Complies


UL Verification Services Inc. tested the above equipment in accordance with the requirements
set forth in the above standards. The test results show that the equipment tested is capable of
demonstrating compliance with the requirements as documented in this report.

The results documented in this report apply only to the tested sample, under the conditions and
modes of operation as described herein. It is the manufacturer's responsibility to assure that
additional production units of this model are manufactured with identical electrical and
mechanical components. All samples tested were in good operating condition throughout the
entire test program. Measurement Uncertainties are published for informational purposes only
and were not taken into account unless noted otherwise.

This document may not be altered or revised in any way unless done so by UL Verification
Services Inc. and all revisions are duly noted in the revisions section. Any alteration of this
document not carried out by UL Verification Services Inc. will constitute fraud and shall nullify
the document. This report must not be used by the client to claim product certification,
approval, or endorsement by NVLAP, NIST, any agency of the Federal Government, or any
agency of the U.S. government.

Approved & Released For
UL Verification Services Inc. By:                                 Prepared By:




FRANCISCO DE ANDA                                                TINA CHU
OPERATIONS LEAD                                                  SENIOR PROJECT ENGINEER
UL Verification Services Inc.                                    UL Verification Services Inc.




                                     Page 4 of 10
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 319-4000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 12727679-E6V2                                                                       DATE: APRIL 09, 2019
FCC ID: 2ASM7-WMC01                                                                               IC: 24839-WMC01

2. TEST METHODOLOGY
All calculations were made in accordance with FCC KDB 447498 D01 and KDB 447498 D03
and IC Safety Code 6.


3. REFERENCES
All measurements were made as documented in test report UL Verification Services Inc.
Document 12727679-E2 for operation in the 915 MHz band.

Antenna gain data is excerpted from the applicable test report.


4. FACILITIES AND ACCREDITATION
The test sites and measurement facilities used to collect data are located at 47173 and 47266
Benicia Street, and 47658 Kato Road, Fremont, California, USA. Line conducted emissions are
measured only at the 47173 address.

UL Verification Services Inc. is accredited by NVLAP, Laboratory Code 200065-0.


5. DESCRIPTION OF EUT
The EUT is a manifold controller with LoRa 915MHz wireless communication. It communicates
with the Warmsource and Actuators to control the flow of heat to each zone. It is categorized as
Digital Transmission System (DTS).




                                     Page 5 of 10
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 319-4000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 12727679-E6V2                                                                       DATE: APRIL 09, 2019
FCC ID: 2ASM7-WMC01                                                                               IC: 24839-WMC01

6. MAXIMUM PERMISSIBLE RF EXPOSURE
    6.1.         FCC RULES
§1.1310 The criteria listed in Table 1 shall be used to evaluate the environmental impact of
human exposure to radio-frequency (RF) radiation as specified in §1.1307(b), except in the case
of portable devices which shall be evaluated according to the provisions of §2.1093 of this
chapter.

                           TABLE 1—LIMITS FOR M AXIMUM PERMISSIBLE EXPOSURE (MPE)


Frequency range Electric field strength Magnetic field strength Power density Averaging time
     (MHz)               (V/m)                  (A/m)             (mW/cm2)      (minutes)
                              (A) Limits for Occupational/Controlled Exposure
0.3-3.0                                       614                           1.63               *100                       6
3.0-30                                     1842/f                          4.89/f            *900/f2                      6
30-300                                       61.4                          0.163                 1.0                      6
300-1,500                                                                                      f/300                      6
1,500-100,000                                                                                      5                      6
                         (B) Limits for General Population/Uncontrolled Exposure
0.3-1.34                                      614                           1.63               *100                      30
1.34-30                                     824/f                          2.19/f            *180/f2                     30
30-300                                       27.5                          0.073                 0.2                     30
300-1,500                                                                                     f/1500                     30
1,500-100,000                                                                                    1.0                     30

f = frequency in MHz

* = Plane-wave equivalent power density

Notes:

    (1) Occupational/controlled exposure limits apply in situations in which persons are exposed
        as a consequence of their employment provided those persons are fully aware of the
        potential for exposure and can exercise control over their exposure. Limits for
        occupational/controlled exposure also apply in situations when a person is transient
        through a location where occupational/controlled limits apply provided he or she is made
        aware of the potential for exposure.

    (2) General population/uncontrolled exposure limits apply in situations in which the general
        public may be exposed, or in which persons who are exposed as a consequence of their
        employment may not be fully aware of the potential for exposure or cannot exercise
        control over their exposure


                                     Page 6 of 10
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 319-4000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 12727679-E6V2                                                                       DATE: APRIL 09, 2019
FCC ID: 2ASM7-WMC01                                                                               IC: 24839-WMC01

   6.2.          IC RULES

For the purpose of this standard, Industry Canada has adopted the SAR and RF field
strength limits established in Health Canada’s RF exposure guideline, Safety Code 6.




                                     Page 7 of 10
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 319-4000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 12727679-E6V2                                                                       DATE: APRIL 09, 2019
FCC ID: 2ASM7-WMC01                                                                               IC: 24839-WMC01

   6.3.          EQUATIONS
POWER DENSITY

Power density is given by:

S = EIRP / (4 * Pi * D^2)

Where

S = Power density in mW/cm^2
EIRP = Equivalent Isotropic Radiated Power in mW
D = Separation distance in cm

Power density in units of mW/cm^2 is converted to units of W/m^2 by multiplying by 10.


DISTANCE

Distance is given by:

D = SQRT (EIRP / (4 * Pi * S))

Where

D = Separation distance in cm
EIRP = Equivalent Isotropic Radiated Power in mW
S = Power density in mW/cm^2


SOURCE-BASED DUTY CYCLE

Where applicable (for example, multi-slot cell phone applications) a duty cycle factor may be
applied.

Source-based time-averaged EIRP = (DC / 100) * EIRP

Where

DC = Duty Cycle in %, as applicable
EIRP = Equivalent Isotropic Radiated Power in W




                                     Page 8 of 10
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 319-4000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 12727679-E6V2                                                                        DATE: APRIL 09, 2019
FCC ID: 2ASM7-WMC01                                                                                IC: 24839-WMC01

    6.4.          IC EXEMPTION
INDUSTRY CANADA EXEMPTION

RF exposure evaluation is required if the separation distance between the user and/or
bystander and the device’s radiating element is greater than 20 cm, except when the device
operates as follows:

•        below 20 MHz and the source-based, time-averaged maximum e.i.r.p. of the device is
         equal to or less than 1 W (adjusted for tune-up tolerance);

•        at or above 20 MHz and below 48 MHz and the source-based, time-averaged maximum
         e.i.r.p. of the device is equal to or less than 4.49/ƒ0.5 W (adjusted for tune-up tolerance),
         where ƒ is in MHz;

•        at or above 48 MHz and below 300 MHz and the source-based, time-averaged
         maximum e.i.r.p. of the device is equal to or less than 0.6 W (adjusted for tune-up
         tolerance);

•        at or above 300 MHz and below 6 GHz and the source-based, time-averaged maximum
         e.i.r.p. of the device is equal to or less than 1.31 x 10-2 ƒ0.6834 W (adjusted for tune-up
         tolerance), where ƒ is in MHz;

•        at or above 6 GHz and the source-based, time-averaged maximum e.i.r.p. of the device
         is equal to or less than 5 W (adjusted for tune-up tolerance).

In these cases, the information contained in the RF exposure technical brief may be limited to
information that demonstrates how the e.i.r.p. was derived.




                                     Page 9 of 10
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 319-4000    FAX: (510) 661-0888
    This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 12727679-E6V2                                                                        DATE: APRIL 09, 2019
FCC ID: 2ASM7-WMC01                                                                                IC: 24839-WMC01

7. RF EXPOSURE RESULTS
In the table(s) below, Power and Gain are entered in units of dBm and dBi respectively and
conversions to linear forms are used for the calculations.

Single Chain and non-colocated transmitters

                                  Output                                                      FCC Power   IC Power
                     Separation            Antenna Duty               FCC Power   IC Power
                                   Peak                        EIRP                             Density     Density
  Band      Mode      Distance               Peak     Cycle             Density     Density
                                  Power                       (mW)                            (mW/cm^2)    (W/m^2)
                        (cm)               Gain (dBi) (%)             (mW/cm^2)    (W/m^2)
                                  (dBm)                                                          Limit       Limit


915 MHz    normal        20       20.00       3.00   100.0    199.5     0.040       0.40        0.61        2.77


Notes:
    1. The device operates above 300 MHz and below 6 GHz with a maximum EIRP less than
       or equal to 1.38 Watts in the 915Mhz band as a mobile device with a minimum
       separation distance of 20 cm, therefore it is exempt from routine RF Exposure
       Evaluation under RSS-102.

    2. A tolerance value of +2 dB was included in the output power values above to cover the
       output power tolerance of +/-2 dB under extreme conditions in the real filed as declared
       by the applicant.

                                              END OF REPORT




                                     Page 10 of 10
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 319-4000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.



Document Created: 2019-04-12 23:53:42
Document Modified: 2019-04-12 23:53:42

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