Mesa Laboratories WOWPRES Pressure Transmitter User Manual wowpres User s Man

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Document ID	244836
Application ID	Qigz2ROzqHatBGO9ixIYDg==
Document Description	Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	11.06kB (138265 bits)
Date Submitted	2002-05-23 00:00:00
Date Available	2002-05-23 00:00:00
Creation Date	2002-05-22 10:13:53
Producing Software	Acrobat Distiller 5.0 (Windows)
Document Lastmod	2002-05-22 10:13:53
Document Title	Microsoft Word - wowpres_User's-Man_.doc
Document Creator	PScript5.dll Version 5.2
Document Author:	Barry Quinlan

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 030 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.
FCC ID: M5ZWOWPRES
MADE IN USA
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
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:
41283FA60B000000EC000F8AD0AB
This field is the mode indicator, the LS-bit which indicates the
service state of the transmitter, C1=normal, C0=service mode.
41283FA60B000000EC000F8AD0AB 
This field is the unique serial number of the 1-Wire sensor.
41283FA60B000000EC000F8AD0AB 
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.
41283FA60B000000EC000F8AD0AB 
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 
This field is the mod 256 sum of all the ASCII character values in
the response but does not include the .
4828AE9105000000AA2D2DD474AB 
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
ƒ
ƒ
ƒ
Reorient or relocate the receiving antenna of the affected radio or television
Increase the separation between the equipment and the affected receiver.
Connect the equipment and the affected receiver to power outlets on separate
circuits.
Consult the dealer or an experienced radio/TV technician for help.
MODIFICATIONS
Changes or modifications not expressly approved by Point Six Inc. could void
the user's authority to operate the equipment.

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Create Date                     : 2002:05:22 10:13:53-04:00
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Page Count                      : 4
Creation Date                   : 2002:05:22 14:13:53Z
Mod Date                        : 2002:05:22 14:13:53Z
Producer                        : Acrobat Distiller 5.0 (Windows)
Author                          : Barry Quinlan
Metadata Date                   : 2002:05:22 14:13:53Z
Creator                         : Barry Quinlan
Title                           : Microsoft Word - wowpres_User's-Man_.doc

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