M5ZWOWPRESPressure Transmitter

FCC ID: M5ZWOWPRES Installation and Operation Instructions for the Wireless PressureSensor. Point Six, Inc. Wireless Analog Sensor Model WOWPRES Installation and Operation Instructions The WOWPRES wireless pressure sensor transmits a digital value representing either 0- 30 PSIA, or other pressure levels from various range sensor elements and a unique serial number to a 418 MHz receiver. The WOWPRES is enclosed in a high impact ABS enclosure for direct surface mounting in the environment to be measured. WOWPRES is battery operated, the battery may be replaced by the user. Application: Apply the sensor to a surface to with double-sided adhesive tape. Make sure that the side labeled with FCC ID is visible and away from any metal surfaces. Service Function: The wireless pressure sensor has an installation mode switch. A momentary push of this switch will start the convert/transmit cycles. When new and until this button is pushed the WOWPRES will not transmit. The WOWPRES will transmit a special installation status mark in the data packet immediately after the installation/start switch is pushed. After the start a push of the installation switch will result in the immediate transmission of data and ID and installation status mark. Battery: A 3.0-3.6 Volt lithium battery powers the WOWPRES wireless sensor. The battery will last for more than 10 years in the idle state (as shipped from the manufacturer). The WOWPRES will transmit data for as long as 3 years at a rate of once each minute once started. The WOWPRES is completely covered with a water resistant rubber coating to protect the electronics from the environment and condensation. The user cannot replace the battery. The WOWPRES may be placed in a quiescent state (battery life greater than 10 years) by holding the installation switch closed for more than 5 seconds. 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 UNDESERED OPERATION FCC ID: M5ZWOWPRES MADE IN USA FCC ID: M5ZWOWPRES Wireless Pressure Sensor Data Format The Point Six, Inc. 418 MHz wireless sensors require a compatible receiver with the ability to receive, error check and provide RS232 and RS422/485 interface. This document describes the data format provided by the HA9-wow 418 MHz. Receiver. The transmit packet from a receiver is approximately 15 milliseconds in duration and consists of 13 bytes of data: 1-byte ID/Mode field 8-byte serial number 2-byte pressure level as a 12-bit number 2-byte CRC-16 error check The HA9-wow receiver processes this packet. The receiver performs a CRC-16 error check on the packet. If the data is not accurate it is discarded. When a packet is received that is error free it is converted to a 29-character packet and transmitted out the serial port at 19,200 Baud. The data is transmitted serially in ASCII Hex format and terminated with a CR character. This format requires two bytes for each byte of data; 14 data bytes x 2=28 plus the CR is 29 characters. See the HA8-wow specification for details. The resulting binary data format of the packet is: 1-byte ID field this field will contain a byte whose LSBit indicates the service state of the transmitter, 0=normal, 1=service mode. 8-byte serial# this field contains the serial number of the 1-Wire sensor. 2-byte data this field contains the pressure data as a 12-bit number stored MSB first. A value of 0FFF is a full scale reading and represents 30 PSIA. A zero input pressure will result in a reading of 0000. 2-byte CRC-16 this is the originally received data packet CRC as described above. 1-byte checksum the checksum is a mod 256 sum of all the ASCII character values in the response but does not include the CR FCC ID: M5ZWOWPRES Example: 41 283FA60B000000EC000F8AD0AB<CR> This field is the mode indicator, the LS-bit which indicates the service state of the transmitter, C1=normal, C0=service mode. 41283FA60B000000EC 000F8AD0AB <CR> This field is the unique serial number of the 1-Wire sensor. 41283FA60B000000EC000F 8AD0AB <CR> This is pressure data field stored MSByte first as a 12-bit number in a 16-bit field. The number shown is 000F (15) or 15/4096 of full scale. Use the calibration points printed on the sensor to calibrate the sensor for full range pressure readings. 41283FA60B000000EC000F8AD0 AB <CR> This field is the CRC-16 error check as was originally received and checked. This CRC is over the first 11 bytes of the packet starting with the mode flags and ending with inclusion of the temperature data. 41283FA60B000000EC000F8AD0AB <CR> This field is the mod 256 sum of all the ASCII character values in the response but does not include the <CR>. 4828AE9105000000AA2D2DD474AB <CR> This is the CR terminator, 0Dhex. FCC ID: M5ZWOWPRES FCC Radio Frequency Interference Statement Wireless Pressure Sensor FCC ID: M5ZWOWPRES NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15, Subpart B, of the FCC Rules. This equipment generates, uses, and can radiate radio frequency energy. If not installed and used in accordance with the instructions, it may cause interference to radio communications. The limits are designed to provide reasonable protection against such interference in a residential situation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures: ƒ Reorient or relocate the receiving antenna of the affected radio or television ƒ Increase the separation between the equipment and the affected receiver. ƒ Connect the equipment and the affected receiver to power outlets…

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May 14, 2002 Federal Communications Commission Equipment Approval Services re: FCC ID: M5ZWOWPRES Gentlemen: Enclosed please find the Point Six, Inc. application for FCC Certification of the Point Six Wireless Pressure Sensor, Model WOW-PRES. The test data submitted as part of this application were prepared by Lexmark International, Inc. with offices at 740 New Circle Road NW, Building 036; Lexington, Kentucky 40511-1876. Lexmark International has A2LA accreditation for EMC testing. Certificate number 0872-01, valid to October 31, 2003. The facility used for radiated measurements is owned by Lexmark International, Inc. and was recognized by the Commission as meeting the requirements of section 2.948 of the Rules via a letter dated August 20, 1998. We submit the information in this application pursuant to the requirements of section 2.1033 and Part 15 of the Federal Communications Commission Rules and Regulations. We request that the Commission grant equipment authorization as soon as it is determined that the attached Application for Equipment Authorization is acceptable. We further request that the schematics and block diagrams of the Point Six Wireless Pressure Sensor Model WOW-PRES, be treated as confidential information as provided for in 47 CFR Section 0.459 (d) (2). Point Six considers this information to be a trade secret. The schematics and block diagrams are in Word files (included with this application) and are listed as wowpres(Schematics).doc and wowpres(Block-Diag) respectively. Thank you in advance for your assistance. If further information is required concerning this application, please do not hesitate to contact me. Sincerely John I. Compton President, Point Six, Inc. Point Six, Inc. 391 Codell Drive Lexington, Ky. 40509 859-266-3606 Fax 266-0702

Test Report Number: PSX-1-2002 Page 4 of 10 EUT: Point Six Wireless Pressure Probe, Model: WOWPRES FCC ID: M5ZWOWPRES _____________________________________________________________________________________________ Test Report PSX-1-2002.doc EUT Photographs:

FCC ID: M5ZWOWPRES FCC label and location of the label on the product. FCC ID Label shown on the WOW PRESS Transmitter, Model PRES1

FCC ID: M5ZWOWPRESS Top View of the Point Six Pressure Transmitter Circuit Board, Model PRES1

FCC ID: M5ZWOWPRES Operational description of the Wireless Pressure Sensor, Model WOWPRES Description of the circuit functions, ground system and antenna of the Point Six, WOWPRES Wireless transmitter The WOWPRES wireless pressure data transmitter is a lithium battery operated, microprocessor based, 418 MHz. transmitter that transmits both pressure data and a unique 64-bit serial number. The microprocessor is brought up from a power down state every 4 seconds by a DS2417 time of day clock interrupt output. Analog data are taken from a 12-bit ADC. The DS18B20 digital temperature sensor has a unique 64-bit serial number that can be read by the microprocessor. The microprocessor counts the 4-second interrupt cycles from the DS2417 clock until the transmit period has expired. The microprocessor then reads the pressure value from the ADC, combines it with the serial number and transmits the entire data packet serially with a Linx Technologies TXM-418-LC-R 418 MHz. Transmitter module. The microprocessor then powers down into a quiescent state to wait for the next interrupt from the DS2417 clock. The PC board bottom layer is a ground plane and the antenna is a 1/4-wave loop that has been hot upset into the ABS cover to form a spiral. The entire electronics is coated with a rubber conformal coating to protect it from condensation. The ground plane (bottom layer) is not coated.

TEST REPORT Test Report Number: PSX-1-2002 EUT: Wireless Pressure Probe Transmitter Model Number: WOWPRES Manufacturer: Point Six, Inc. The data contained in this test report apply only to the specific sample tested under the conditions described herein. It is the responsibility of the manufacturer to assure that any additional units of this model that are manufactured be done so using components with identical electrical and mechanical characteristics in order to assure similar performance. Lexmark International shall have no liability, expressed or implied, for any conclusions, inferences or generalizations that the manufacturer or others may draw based on these results. This report may be reproduced only if done so in its entirety. This report was prepared by: Lexmark International, Inc. EMC Laboratory 740 New Circle Road NW Building 036 Lexington, Kentucky 40511-1876 Cert. No. 0872-01 Test Report Number: PSX-1-2002 Page 2 of 10 EUT: Point Six Wireless Pressure Probe, Model: WOWPRES FCC ID: M5ZWOWPRES _____________________________________________________________________________________________ Test Report PSX-1-2002.doc Summary of testing: The results in this report indicate that the EUT complies with the requirements of 47 CFR 15.231 (c) and (e) of the FCC Rules. Modifications made to the EUT in order to comply: None Note: It is the responsibility of the manufacturer to ensure that any modifications made to the EUT in order to comply with the specified standards of this report are implemented on all production units. Testing performed by: ___________________________ Kevin Hall Engineer, Lexmark EMC Laboratory (859) 232-6015 ___________________________ John T. Fessler Manager, Lexmark EMC Laboratory NARTE EMC Engineer (859) 232-7650 Report reviewed by: ___________________________ John T. Fessler Manager, Lexmark EMC Laboratory NARTE EMC Engineer (859) 232-7650 Test Report Number: PSX-1-2002 Page 3 of 10 EUT: Point Six Wireless Pressure Probe, Model: WOWPRES FCC ID: M5ZWOWPRES _____________________________________________________________________________________________ Test Report PSX-1-2002.doc EUT: Point Six Wireless Pressure Probe Transmitter Model Number: WOWPRES EUT Serial Number: 2726BE02000000B2 FCC ID: M5ZWOWPRES Description of EUT: A wireless, battery-operated transmitter that transmits pressure data to a remote receiver. Manufactured by: Point Six, Inc. 391 Codell Drive Lexington, KY. 40509 Measurements According to: ANSI C63.4 (1992) Measurement Date: January 24, 2002 Testing Performed at: Lexmark International, Inc. Registered 10 meter Semi-anechoic Chamber Development Lab. Building 036 740 New Circle Road, NW. Lexington, KY. 40511-1876 Accreditation Status of Test Facility: The Lexmark site was recognized by the Commission as meeting the requirements of Section 2.948 of the FCC Rules via a letter dated December 10, 2001 (Registration No. 949691) and is presently on file with the Commission. This facility is accredited to ISO Guide 17025 by A2LA for measurements under ANSI C63.4 (1992) as indicated by Certificate No. 0872-01, valid to October 31, 2003. Test Report Number: PSX-1-2002 Page 4 of 10 EUT: Point Six Wireless Pressure Probe, Model: WOWPRES FCC ID: M5ZWOWPRES _____________________________________________________________________________________________ Test Report PSX-1-2002.doc EUT Photographs: Test Report Number: PSX-1-2002 Page 5 of 10 EUT: Point Six Wireless Pressure Probe, Model: WOWPRES FCC ID: M5ZWOWPRES _____________________________________________________________________________________________ Test Report PSX-1-2002.doc Radiated Emissions Test Results: Harmonic Freq. (MHz) Meter Peak dB Meter Average dB Ant & Cable Factors dB/uV/m Total Peak dB/uV/m Limit Peak dB/uV/m Total Average dB/uV/m Limit Average dB/uV/m 1 418 67.5 34.0 20.9 88.4 92.30 54.9 72.30 2 836 13.0 - 28.4 41.4 - - 3 1254 25.29 11.1 26.3 51.6 74.00 37.4 54.00 4 1672 26.2 12.0 27.9 54.1 74.00 39.9 54.00 5 2090 25.58 12.0 29.9 55.4 74.00 41.9 54.00 6 2508 26.5 12.9 31.7 58.2 74.00 44.6 54.00 7 2926 26.26 12.7 33.6 59.9 74.00 46.3 54.00 8 3344 26.41 11.8 34.5 60.9 74.00 46.3 54.00 9 3762 25.7 12.6 35.4 61.1 74.00 48.0 54.00 10 4180 25.29 12.2 36.5 61.8 74.00 48.7 54.00 * Indicates max. radiation orientation; the product was measured at three different orientations. Sample Calculation: From FCC Rules, Paragraph 15.231(e) Frequency: 260-470 MHz. Amplitude: 1500-5000 uV/m For 418 MHz. L(limit)=((418-260)/(470-260))(5000-1500)+1500 L = 4133 uV/m L(dB/uV/m) = 20 Log (4133) L = 72.3 dB/uV/m (AVG) L(Peak) = Avg. + 20 dB L(Peak) = 72.3 + 20 = 92.3 dB/uV/m Test Report Number: PSX-1-2002 Page 6 of 10 EUT: Point Six Wireless Pressure Probe, Model: WOWPRES FCC ID: M5ZWOWPRES _____________________________________________________________________________________________ Test Report PSX-1-2002.doc Transmitter Bandwidth Test Results: The photo below indicates that the 20 dB transmitted bandwidth of the EUT is 45.1 kHz. This is well within the maximum bandwidth of 1.045 MHz (0.25% of 418 MHz) specified by 47 CFR 15.231 (c). Test Report Number: PSX-1-2002 Page 7 of 10 EUT: Point Six Wireless Pressure Probe, Model: WOWPRES FCC ID: M5ZWOWPRES _____________________________________________________________________________________________ Test Report PSX-1-2002.doc Photographs of test setup: Setup for measurements 30MHz – 1000 MHz. Measurements were made with the EUT located by itself on an 80 cm high non-conductive table. Test Report Number: PSX-1-2002 Page 8 of 10 EUT: Point Six Wireless Pressure Probe, Model: WOWPRES FCC ID: M5ZWOWPRES _____________________________________________________________________________________________ Test Report PSX-1-2002.doc Photographs of test setup: Setup for measurements above 1000 MHz. Measurements were made with the EUT and a Point Six Wireless Transmitter/Receiver (FCC ID: M5ZPTRX) both located on an 80 cm high non-conductive table. Test Report Number: PSX-1-2002 Page 9 of 10 EUT:…

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To Whom It May Concern: The Point Six, Inc. wireless pressure transmitter (model PRES1) transmits a 15-16 millisecond packet once each 600-10 seconds. This is identical to the data packet timing of a previously certified “M5ZWOW”. The packet consists of transmitter-on/transmitter-off timing that represents the serial number and pressure data. The duty cycle is approximately 50%. The packet time can vary with serial number between 14- 16 milliseconds. The packet data is controlled by a microprocessor whose timing is based on a ceramic resonator that is very stable. The packet below (figure #2) illustrates a typical data packet, the worst case, 16 milliseconds, cannot be shown because serial number would have to be forced to make this so. Figure #1 illustrates the overall timing; a packet is sent each 10 seconds in this worst case. The battery used during the tests was new and was a standard 3.6 Volt Lithium cell. The battery is a 3.6 Volt Lithium chemistry, which has a flat discharge curve from new to about 90% used. In this application the battery requires about 5 years to discharge to the point that it cannot be used. The battery was used for no other purpose and had operated in the test unit for only a short time when the test was performed. The label will be Flexcon 2 mil PM200S mylar with a Flexcon 1 mil PM100C Polyester laminate. John I. Compton President, Point Six, inc. Point Six , Inc. 391 Codell Drive Lexington, Ky. 40509 606-266-3606 Fax 271-0702 Figure #1 Overall timing Figure #2 Packet Timing

Test Report Number: PSX-1-2002 Page 7 of 10 EUT: Point Six Wireless Pressure Probe, Model: WOWPRES FCC ID: M5ZWOWPRES _____________________________________________________________________________________________ Test Report PSX-1-2002.doc Photographs of test setup: Setup for measurements 30MHz – 1000 MHz. Measurements were made with the EUT located by itself on an 80 cm high non-conductive table.