Tekelek Europe TEK888 Tank Level Sensor User Manual

Europe TEK888 Tank Level Sensor
User Manual

APPROVED EXTERNAL ANTENNA TYPES
Transmitter Antenna (from Section 7.1.2 RSS-Gen, Issue 5) The 888 module can only be sold or operated with antennas with which it was approved.  The transmitter may be approved with multiple antenna types. An antenna type comprises antennas having similar in-band and out-of-band radiation patterns. Testing shall be performed using the highest gain antenna of each combination of transmitter and antenna type for which approval is being sought, with the transmitter output power set at the maximum level. Any antenna of the same type having equal or lesser gain as an antenna that had been successfully tested with the transmitter will also be considered approved with the transmitter and may be used and marketed with the transmitter.
When a measurement at the antenna connector is used to determine RF output power, the effective gain of the device’s antenna shall be stated, based on measurement or on data from the antenna manufacturer. For transmitters of output power greater than 10 milliwatts, the total antenna gain shall be added to  the measured RF output power to demonstrate compliance to the specified radiated power limits

RF Trace Layout Design
The modular transmitter is certified with a PCB edge SMA connector and micro- strip trace layout as shown in the figure. The left-side RF path is not used for this module. The host PCB can follow these trace designs to maintain compliance under the modular grant (FCC) and certificate (IC).
RF TRACE ROUTNG (TOP LAYER)

TABLE 5-1: TESTED EXTERNAL ANTENNA TYPES

RF TRACE ROUTING (BOTTOM LAYER)

HOST PRODUCT TESTING GUIDANCE
from KDB 996369 D04
The host manufacturer is responsible to ensure that when their product operates as intended it does not have any emissions present that is out of compliance that was not present when the transmitters were tested individually.
it should not be necessary for the host installer to re-test all the available transmitter modes or settings. It is recommended that the host product manufacturer,  installing the modular transmitter, perform some investigative measurements to confirm that the resulting composite system does not exceed the spurious emissions limits or band edge limits (e.g., where a different antenna may be causing additional emissions).
The testing should check for emissions that may occur due to the intermixing of emissions with the other transmitters, digital circuitry, or physical properties of the host product (enclosure). This investigation is especially important when integrating multiple modular transmitters where the certification is based on testing each of them in a stand-alone configuration. It is important to note that host product manufacturers should not assume that because the modular transmitter is certified that they do not have any responsibility for final product compliance.
Test modes should take into consideration different operational conditions for a stand-alone modular transmitter in a host, as well as for multiple simultaneously transmitting modules or other transmitters in a host product.

Commands for the module can be found here:
https://ww1.microchip.com/downloads/en/DeviceDoc/RN2903-SA-AU915-LoRa-Module- Command-Reference-User-Guide-DS50002913A.pdf

United States
The module has received Federal Communications Commission (FCC) CFR47 Telecommunications, Part 15 Subpart C “Intentional Radiators” modular approval in accordance with Part 15.212 Modular Transmitter approval. Modular approval allows the end-user to integrate the module into a finished product without obtaining subsequent and separate FCC approvals for intentional radiation, provided no changes or modifications are made to the module circuitry. Changes or modifications could void the user’s authority to operate the equipment. The end-user must comply with all of the instructions provided by the  Grantee, which indicate installation and/or operating conditions necessary for compliance.
The finished product is required to comply with all applicable FCC equipment authorizations regulations, requirements, and equipment function not associated with the transmitter module portion. For example, compliance must be demonstrated to regulations for other transmitter components within the host product;  to requirements for unintentional radiators (Part 15 Subpart B “Unintentional Radiators”), such as digital devices, computer peripherals, radio receivers, etc.; and to additional authorization requirements for the non-transmitter functions on the transmitter module (i.e., Verification, or Declaration of Conformity) (e.g.,  transmitter modules may also contain digital logic functions) as appropriate.

LABELING AND USER INFORMATION REQUIREMENTS
The module has been labeled with its own FCC ID number, and if the FCC ID is not visible when the module is installed inside another device, then the outside of the finished product into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording  as follows: A user’s manual for the finished product should include the following statement: Additional information on labeling and user information requirements for Part 15 devices can be found in KDB Publication 784748 available at the FCC Office of Engineering and Technology (OET) Laboratory  Division Knowledge Database (KDB) https://apps.fcc.gov/oetcf/kdb/index.cfm
Contains Transmitter Module FCC ID: S6T888
or
Contains FCC ID: S6T888
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference,  and (2) this device must accept any interference received, including interference that may cause undesired operation.
This module has been tested and certified to FCC Part 15.247

A user’s manual for the finished product should include the following statement:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which  can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following  measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Ensure the device maintains a 20cm separation from the user

RF EXPOSURE
All transmitters regulated by FCC must comply with RF exposure requirements. KDB 447498 General RF Exposure Guidance provides guidance in determining whether proposed or existing transmitting facilities, operations or devices comply with limits for human exposure to Radio Frequency (RF) fields adopted by the Federal Communications Commission (FCC).
From the FCC Grant: Output power listed is conducted. This grant is valid only when the module is sold to OEM integrators and must be installed by the  OEM or OEM integrators. This transmitter is restricted for use with the specific antenna(s) tested in this application for Certification and must not be co- located or operating in conjunction with any other antenna or transmitters within a host device, except in accordance with FCC multi-transmitter product procedures.
RF exposure evaluation is required if the separation distance between the user or bystander and the device is greater than 20 cm.

APPROVED EXTERNAL ANTENNA TYPES
To maintain modular approval in the United States, only the antenna types that have been tested shall be used. It is permissible to use different antenna manufacturers provided the same antenna type and antenna gain (equal to or less than) is used. Testing of the module was performed with the antenna types listed in this manual.

Canada
The module has been certified for use in Canada under Industry Canada (IC) Radio Standards Specification (RSS) RSS-247 and RSS-Gen. Modular approval permits the installation of a module in a host device without the need to recertify the device.

LABELING AND USER INFORMATION REQUIREMENTS
Labeling Requirements for the Host Device (from Section 3.2.1, RSS-Gen, Issue 3, December 2010):
The host device shall be properly labeled to identify the module within the host device.
The Industry Canada certification label of a module shall be clearly visible at all times when installed in the host device, otherwise, the host device must be  labeled to display the Industry Canada certification number of the module, preceded by the words “Contains transmitter module”, or the word “Contains”, or  similar wording expressing the same meaning, as follows: Contains transmitter module IC: 20606-888

User Manual Notice for License-Exempt Radio Apparatus (from Section 7.1.3 RSS- Gen, Issue 3, December 2010): User manuals for license-exempt radio  apparatus shall contain the following or equivalent notice in a conspicuous location in the user manual or alternatively on the device or both:

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

Transmitter Antenna (from Section 7.1.2 RSS-Gen, Issue 3, December 2010): User manuals for transmitters shall display the following notice in a conspicuous location:
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.

The above notice may be affixed to the device instead of displayed in the user manual.
Contains transmitter module IC:20606-888
User manuals for transmitters equipped with detachable antennas shall also contain the following notice in a conspicuous location:

This radio transmitter (identify the device by certification number, or model number if Category II) has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.

Immediately following the above notice, the manufacturer shall provide a list of all antenna types approved for use with the transmitter, indicating the maximum permissible antenna gain (in dBi) and required impedance for each.

APPROVED EXTERNAL ANTENNA TYPES
Transmitter Antenna (from Section 7.1.2 RSS-Gen, Issue 3, December 2010):
The module can only be sold or operated with antennas with which it was approved. The transmitter may be approved with multiple antenna types. An antenna type comprises antennas having similar in-band and out-of-band radiation patterns. Testing shall be performed using the highest gain antenna of each combination of transmitter and antenna type for which approval is being sought, with the transmitter output power set at the maximum level. Any antenna of  the same type having equal or lesser gain as an antenna that had been successfully tested with the transmitter will also be considered approved with the transmitter and may be used and marketed with the transmitter.
When a measurement at the antenna connector is used to determine RF output power, the effective gain of the device’s antenna shall be stated, based on measurement or on data from the antenna manufacturer. For transmitters of output power greater than 10 milliwatts, the total antenna gain shall be added to the measured RF output power to demonstrate compliance to the specified radiated power limits. Testing of the module was performed with the antenna types listed in this manual.

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