Miltel Communications CPTX450A Data Telemetry TX User Manual

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Document ID	403200
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Date Submitted	2004-03-08 00:00:00
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Creation Date	2004-02-03 07:39:00
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Document Title	Microsoft Word - UserMan WirelessTransmitter Revised.doc
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Document Author:	presario

Miltel Transmitter
Wireless Transmitter
for Data Collection
FCC ID: MLLCPTX450A
User Manual
Miltel Communications Ltd.
January 2004
Table of Contents
Chapter 1
Introduction .............................................................................................. 3
1.1
Purpose and Use........................................................................................ 3
1.2
System General Description....................................................................... 3
Chapter 2
Theory of Operation .................................................................................. 4
2.1
General Description.................................................................................... 4
2.2
Block Diagram Description ......................................................................... 6
Chapter 3
3.1
Chapter 4
Technical Characteristics ......................................................................... 9
Technical Specification............................................................................... 9
Installation Instructions .......................................................................... 10
4.1
General..................................................................................................... 10
4.2
Installation ................................................................................................ 10
Chapter 1
Introduction
1.1
Purpose and Use
The Miltel Transmitter (FCC ID: MLLCPTX450A) is a data link transmitter that is
used for data acquisition in Miltel’s telemetric data collection system. This device is
installed on-site by a professional field technician, thus it includes technical terms.
The equipment is not to be installed by a non-professional individual that has not
been trained and authorized.
1.2
System General Description
The Miltel data collection system is a computerized fully system incorporating oneway transmitters that automatically collect data from utility meters and/or other
sensors. The system requires no human intervention after initial installation. The
system enables remote, continuous and accurate reading of water or gas consumption.
The Miltel CPTx transmits the data acquired from various sensors such as water
meters, electric meters, temperature or moisture sensors or any other analog or digital
sensor to a receiver connected to a regional data concentrator. The concentrator
transfers the data to the central computer for data collection and for further analysis
and reporting.
Chapter 2
Theory of Operation
2.1
General Description
The Miltel CPTx is the first link in the data collection system. It is an independent
unit that does not require an external power source, wiring, or the preparation of any
special infrastructure. The unit is installed in proximity to the physical sensor and can
be connected to several different sensors in parallel (for example four water meters of
adjacent apartment, three ground moisture sensors at different depths, etc).
Pictures 2-1 through 2-3 (see next page) show typical installations of a Miltel CPTx
unit, connected various sensors. The unit can be connected to any type of sensor
which has a digital output, analog output, dry contact pulsed output (a passive
magnetic open/short reed relay), or any active pulse or encoded output.
The Miltel Transmitter acquires the data from the sensor and stores this data in its
internal memory. The unit includes a miniature RF transmitter which transmits the
data on a periodic basis to a regional concentrator.
Miltel
Transmitter
Figure 2-1: Miltel Transmitter Typical Multi Meter Installation
(S Type Enclosure)
Miltel
Transmitter
Meter in
Basement
Figure 2-2: Miltel Transmitter Typical Remote Installation
(B Type Enclosure)
Miltel
Transmitter
Miltel
Transmitter
Moisture Sensor
Figure 2-3: Miltel Transmitter Typical Agricultural Sensor Installation
(N Type Enclosure)
2.2
Block Diagram Description
2.2.1
General
Figure 2-2 describes the block diagram of the Miltel Transmitter unit. This device
consists of two major sections, all using a common power source:
¾
Digital section (Micro Controller)
¾
RF section
A 3.6 volts Lithium battery provides power to all parts of the device. The power
supply for the RF section is controlled via the Tx switch (not shown), thus cutting of
power to the transmitter unless necessary for actual data transmission (standby
mode).
Sensor
Battery
Sensin
an
Support
Circuitry
Antenna
MicroController
Transmitte
(Input Port)
Sensor
Magnetic
Switch
Tamper
Switch (opt.)
Device Enclosure
Figure 2-4: Miltel Transmitter Block Diagram
2.2.2 Description of Operation
The digital section of the Miltel Transmitter performs the following functions:
¾ Samples analog sensors OR communicates with digital sensors
¾ Accumulates data for each sensor separately
¾ Stores data (including alarms) in internal memory
¾ Interfaces the data to the RF section
The controller gathers the data for 10-240 minutes before initiating a transmission. If
any of the counters/sensors has exceeded a preset value, or any alarm (such as
tamper) has been received, the controller generates a single message immediately.
Any further message will include alarm information along with counter data, if alarm
condition still exists. Note: The duration interval between two transmissions is
always greater than 30 minutes.
The messages generated by the controller are 16-48 bytes each (depending on the
number and type of sensors connected). The messages are exported from the digital
section to the RF section as serial data (RS-232 standard protocol) via the DATA OUT
output of the controller.
The Tx control output of the controller is used for activating the TX switch for the
duration of the message, to enable power supply to the RF section thus enabling the
transmission of the message (transmit mode).
The RF section takes the message and transmits it through the RD circuitry.
Chapter 3
Technical Characteristics
3.1
Technical Specification
3.1.1
Electrical
Max Effective Radiated Power (ERP)
29.5 mW
Output frequency
450-470 MHz
Carrier wave modulation
2 Level FSK
Power supply
Lithium battery, 3.6 Volt
Input Channels
Pulse / Analog / Digital
Duration between automatic transmissions
At least 10 Min.
3.1.2
Physical
Operating temperature
-30°C ÷+50°C
Water Resistance
IP64 / IP68 (optimal)
Dimensions
Enclosure Type B
Enclosure Type N
Enclosure Type S
Length
11 cm.
11 cm.
11 cm.
Width
8 cm.
8 cm.
8 cm.
Depth
3 cm.
3 cm.
3 cm.
Chapter 4
Installation Instructions
4.1
General
The Miltel Transmitter is installed by a professional technician. Several possibilities
for installation have been programmed into the system in order to provide solutions
for installation of various types of sensors including water, gas or electric meters.
4.2
Installation
4.2.1 Enclosure Type B
For on-site installation of the Miltel Transmitter Type B device, proceed as follows:
1)
Mount the back plate to the wall using two mounting screws.
Mounting
Holes
Cable from Meter
(external or hidden behind panels)
2)
Splice the wires coming from the transmitter with the wires coming from the
meter (Important: Keep the color coding consistent).
Splice
Wires
3)
Close the enclosure by placing the transmitter box (grey) over the base plate
(black) and fasten with one screw.
Screw
4)
Perform a functional radio transmission test by touching the side of the
transmitter enclosure with a strong magnet (trigger transmission). Verify
correct reception of data at the base station (concentrator).
4.2.2 Enclosure Type N
For on-site installation of the Miltel Transmitter Type N device, proceed as follows:
1)
Mount the transmitter enclosure to the wall using at least two of the four
mounting screws or Mount the transmitter on ground mounting pole.
Vertical
Mounting
Holes
Horizontal
Mounting
Holes
Hole for
optional
mounting
on pole
Cable from Meter(s) and/or Sensor(s)
(supplied with watertight connector)
2)
Connect the connector(s) to the meter and/or sensor.
NOTICE
This equipment must be installed only by a professional and certified installer
that was trained in the proper installation of this device. The intended use is
only for the specific application the device was designed for. It is forbidden to
use this device with any antenna other than the original antenna supplied by the
original equipment manufacturer.
4.2.3 Enclosure Type S
For on-site installation of the Miltel Transmitter Type S device, proceed as follows:
1)
Loosen the four screws fastening the unit's box and open the box cover.
2)
Install the unit's box base as required:
3)
For pipeline installations (as in Figure 2-1), first attach the stainless steel clamp (see
Figure 4-1) to the pipeline, close it around the pipeline and fasten the screw in the
middle of the device. Place the unit's box base on top of the screw and install it using
two steel screws.
4)
For wall mounting of the unit, install the base directly onto the wall or surface using
the two steel screws.
5)
Connect the wire pairs from the water meters to the terminal blocks on the PCB. Up to
four such pairs can be connected, with unused connections left open (i.e., no
termination is required).
Note
Connect each pair of wires to the respective terminals; note the
connections for future reference.
6)
Close the unit's box cover.
7)
Perform a functional radio transmission test by touching the side of the transmitter
enclosure with a strong magnet (trigger transmission). Verify the correct reception
of the data at the base station (concentrator). Update water actual readings for the
respective meter.
8)
Close the four screws fastening the cover.
9)
Insert plastic protection plugs.
Figure 4-1: Miltel Transmitter - Pipeline Installation

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Create Date                     : 2004:02:03 07:39:00+02:00
Modify Date                     : 2004:02:03 07:39:00+02:00
Page Count                      : 14
Creation Date                   : 2004:02:03 05:39:00Z
Mod Date                        : 2004:02:03 05:39:00Z
Producer                        : Acrobat Distiller 5.0 (Windows)
Author                          : presario
Metadata Date                   : 2004:02:03 05:39:00Z
Creator                         : presario
Title                           : Microsoft Word - UserMan WirelessTransmitter Revised.doc

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