Mesa Laboratories THL Wireless Temperature/Humidity Sensor User Manual M5ZTHL User s Man

Point Six Inc Wireless Temperature/Humidity Sensor M5ZTHL User s Man

Users Manual

Download: Mesa Laboratories THL Wireless Temperature/Humidity Sensor User Manual M5ZTHL User s Man
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Document ID309077
Application IDqvWYwzIUAYTddfzOLNmlmw==
Document DescriptionUsers Manual
Short Term ConfidentialNo
Permanent ConfidentialNo
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Document TypeUser Manual
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Date Submitted2003-03-11 00:00:00
Date Available2003-03-11 00:00:00
Creation Date2003-03-11 15:31:43
Producing SoftwareAcrobat Distiller 5.0 (Windows)
Document Lastmod2003-03-11 15:31:43
Document TitleMicrosoft Word - M5ZTHL_User's-Man_.doc
Document CreatorPScript5.dll Version 5.2
Document Author: Katie

FCC ID: M5ZTHL
Installation and Operation Instructions for the Wireless Temp/Humidity.
Point Six, Inc.
Wireless Temperature/Relative-Humidity Sensor
Model Point Sensor Temp/Humidity
Installation and Operation Instructions
The Point Sensor Temp/Humidity sensor transmits a digital temperature, relativehumidity (or light level) and a unique serial number to a 418 MHz receiver. The Point
Sensor Temp/Humidity is enclosed in a high impact ABS enclosure for direct surface
mounting in the environment to be measured. The Point Sensor Temp/Humidity is battery
operated.
Application: Apply the sensor to the surface to be monitored 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 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 Point Sensor Temp/Humidity will not transmit. The Point Sensor
Temp/Humidity 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 temperature, relativehumidity ID and installation status mark.
Battery: A 3.6 Volt lithium battery powers the Point Sensor Temp/Humidity wireless
sensor. The battery will last for more than 10 years in the idle state (as shipped from the
manufacturer). The Point Sensor Temp/Humidity will transmit data for as long as 5 years
at a rate of once each minute once started. The Point Sensor Temp/Humidity is
completely covered with a water resistant conformal coating to protect the electronics
from the environment and condensation. The user can replace the battery. The Point
Sensor Temp/Humidity may be placed in a quiescent state (battery life greater than 10
years) by holding the installation switch closed for more than 4 seconds.
FCC ID: M5ZTHL
FCC ID: M5ZTHL
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
Wireless 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 HA8-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 temperature/relative-humidity or temperature/light level
2-byte CRC-16 error check
The HA8-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 temperature %RH stored MSB first. The
MSbit of the MSB is the sign bit for the temperature value which is
stored as the LSB in ½ deg C units.
FCC ID: M5ZTHL
Bits 0-6 of the MSB contain the RH value in %RH (0-100%). In
the case of light level bits 0-6 of the MSB is the relative light level.
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
Example:
C828AE9105000000AA2D2DD474AB
This field is the mode indicator, the LS-bit which indicates the
service state of the transmitter, C8=normal, C7=service mode.
C828AE9105000000AA2D2DD474AB 
This field is the unique serial number of the 1-Wire sensor.
C828AE9105000000AA2D2DD474AB 
This is the temperature and %RH field. The MSBit of the MSByte
is low so the temperature is a positive number, 2D is 45 so the
temperature is +22.5 C. The %RH is 45. A value on this field of
A1F2 would represent a temperature of (242-256)/2 or -7 C and a
%RH or 33. Temperature is stored in the LSByte, if the MSBit of
the MSB is 1 than the temperature is negative and the conversion
math is (n-256)/2 otherwise use n/2.
C828AE9105000000AA2D2DD474AB 
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.
C828AE9105000000AA2D2DD474AB 
This field is the mod 256 sum of all the ASCII character values in
the response but does not include the .
C828AE9105000000AA2D2DD474AB 
This is the CR terminator, 0Dhex.
FCC ID: M5ZTHL
FCC Radio Frequency Interference Statement
Wireless Temp/Humidity Sensor
FCC ID: M5ZTHL
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                     : 2003:03:11 15:31:43-05:00
Modify Date                     : 2003:03:11 15:31:43-05:00
Page Count                      : 4
Creation Date                   : 2003:03:11 20:31:43Z
Mod Date                        : 2003:03:11 20:31:43Z
Producer                        : Acrobat Distiller 5.0 (Windows)
Author                          : Katie
Metadata Date                   : 2003:03:11 20:31:43Z
Creator                         : Katie
Title                           : Microsoft Word - M5ZTHL_User's-Man_.doc
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FCC ID Filing: M5ZTHL

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