instruction manual of the mu-3sensor

INSTRUCTION MANUAL
OF THE MU-3 SENSOR
1. INTRODUCTION ......................................................................................................................................2
2. CONNECTION ..........................................................................................................................................2
2.1 CONNECTION OF THE SENSOR ...............................................................................................................................2
2.2 CONNECTING MU-3 TO THE JETIBOX .................................................................................................................2
2.3 CONNECTING THE MU-3 TO A DUPLEX RECEIVER ..............................................................................................3
2.4 CONNECTING MU-3 TO A DUPLEX EXPANDER ...................................................................................................3
3. MENU NAVIGATION ..............................................................................................................................4
3.1 ACTUAL VALUE ................................................................................................................................................4
3.2 MIN / MAX – MINIMUM AND MAXIMUM VALUES ...............................................................................................4
3.3 SETTING - CONFIGURATION OPTIONS .................................................................................................................4
3.4 ALARMS ..............................................................................................................................................................5
4. TECHNICAL SPECIFICATION OF THE MU-3 ..................................................................................5
5. WARRANTY ..............................................................................................................................................5
6. MENU DIAGRAM OF MU-3 ...................................................................................................................6
Released by JETI model s.r.o
15.7.2010
INSTRUCTION MANUAL: MU-3
1. Introduction
The sensor MU-3 can be used for model on board monitoring of up to three voltages. With the aid of
the MU-3 sensor the historical course of particular voltages can be monitored (minimum and
maximum values) and the sensor may warn the user if set parameters are violated. Informations of
the sensor are transmitted by the Duplex System to the user.
The Duplex System utilizes the 2,4GHz band for communication, which not only transmits model
controlling data to the model but also receives useful model data back at the transmitter end. Data
collected during operation are transmitted in real time and the actual condition of measured values
can be evaluated on the JETIBOX LCD display.
2. Connection
2.1 Connection of the Sensor
It is possible to connect up to 3 independent voltage sources to the MU-3 sensor (see Fig.
below). Connect the voltages to the sensor input with correct polarities! After connection of the
voltages to the sensor inputs and connection of the sensor to its voltage supply, recognizing of
the active inputs will start and after approximately 2 seconds the sensor will be set according to
the number of recognized active inputs. The sensor recognizes the input as beeing active if the
connected voltage is higher than 0,1V. The connection and the following time calculation until
the setting moment is shown in the second line of the JETIBOX terminal. The sensor is
permanently set until the time it becomes switched off. When the sensor voltage supply is
switched on again there will be initiated a new recognizing process. If the sensor is definitely
set, any change of numbers of arbitrary active inputs will trigger an input error announcement.
The input error is notificated in the display as well as by an acoustic signal of the transmitter
module.
2.2 Connecting MU-3 to the JETIBOX
The triple-core cable of the MU-3 sensor with JR plug can be directly connected to the
JETIBOX (receptacle marked Pulse, + - ). Use the second input of the JETIBOX marked (+ -)
for the voltage supply, connect a voltage within a range of 5-8,4V. This configuration offers no
data transfer via radio link, therefore are data depicted on the JETIBOX LCD-screen only. This
wiring enables no generation of acoustic alert signals because the buzzer is part of the
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INSTRUCTION MANUAL: MU-3
transmitter module, which in this case is not connected. Alert signals are only shown on the
LCD-display.
2.3 Connecting the MU-3 to a DUPLEX receiver
Connect the triple core cable of the MU-3 module with its JR plug to the receptacle on the
backside of the DUPLEX receiver (marked Ext.). The MU-3 sensor obtains its current supply
via the receiver. For the purpose of MU-3 sensor parameter adjustments connect the JETIBOX
to the transmitter module and switch on DUPLEX receiver and transmitter.
2.4 Connecting MU-3 to a DUPLEX Expander
Connect the triple core cable of the MU-3 module with its JR plug to one of the EXPANDER
inputs. The Expander offers the possibility of connecting several telemetry sensors to one
receiver. The MU-3 sensor obtains in this case its current supply via the Expander and the
receiver.
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INSTRUCTION MANUAL: MU-3
3. Menu navigation
The JETIBOX terminal is used for parameter set-up and data readout. After connection to the MU-3
sensor the introductory display appears, showing in the first line the sensor identification. In the
second line indicates the actual voltage of inputs A,B,C. By pressing JETIBOX key D (arrow down)
you will enter into the MU-3 sensor menu.
3.1 ACTUAL VALUE
MU-3 MENU: Actual Value – By pressing the 'D' (Down) button of the JETIBOX, we can
view the actual measured values.
A/B/C – indicate actual voltages at all three inputs.
3.2 MIN / MAX – Minimum and Maximum Values
MU-3 MENU: MIN / MAX - by pressing key D (arrow down) you will select depiction of
voltage extremes which occurred during measurements. Records of extremes are deleted
automatically or they can be deleted with the aid of the menu Setting - Erase Data. Automatic
deletion occurs if the MU-3 sensor has been just connected to the supply voltage and the
adjusted voltage, which has been set-up in the menu Setting Trigger level, has been exceeded.
If during connection of the sensor the adjusted set-up voltage will not be exceeded, voltages of
the preceding operation will be shown.
U MIN/MAX – indicates the minimum and maximum voltage of the at the time selected input
(by pressing key D (arrow down) you may continue with depicting of minimum and maximum
voltages of particular inputs)
3.3 SETTING - Configuration Options
MU-3 MENU: SETTING – By pressing the 'D' (Down) button, we can see the individual
parameter settings of the MU-3.
Erase Data – by pressing arrows R and L (right and left) simultaneously you will delete records
of the measured parameters
Trigger level – set-up of the voltage value at which, in consequence of its first overstepping
after the sensor has been switched on, minimum and maximum values are set to zero and new
recordings start.
Trigger level x.xV on A input > – selection of the input, which will be used for automatic
deletion of the extreme . (Let us for example set the Trigger level to 1,2V and select input A.
Deletion of the extreme will occur if the voltage at input A will overstep the value 1,2V.)
Beep Alarm A – set-up of the Morse alphabet letter which will represent the alert by an acoustic
signal of the transmitter module DUPLEX Tx when the value will fall off of the low voltage
set-up at input A.
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INSTRUCTION MANUAL: MU-3
Beep Alarm B – set-up of the Morse alphabet letter which will represent the alert by an acoustic
signal of the transmitter module DUPLEX Tx when the value will fall off of the low voltage
set-up at input B.
Beep Alarm C – set-up of the Morse alphabet letter which will represent the alert by an acoustic
signal of the transmitter module DUPLEX Tx when the value will fall off of the low voltage
set-up at input C.
3.4 ALARMS
MU-3 MENU: ALARMS – by pressing key D (arrow down) you are entering the area of
adjusting particular alerts. If any of the set-up parameters is overstepped, the JETIBOX LCDdisplay will in the second line of the basic menu alternately show the original indication and the
matching alert, the beeper of the transmitter module will sound an alert. The first tone is an
announcement tone and the second tone sequence is the Morse alphabet signal of the matching
alert. If one of the alerts is switched OFF, there will be no alert audible.
A Low Volt. Al. – set-up of the low voltage signal at input A. If the measured voltage at input A
falls off of the set value, the alert will become activated.
B Low Volt. Al. – set-up of the low voltage signal at input B. If the measured voltage at input B
falls off of the set value, the alert will become activated.
C Low Volt. Al. – set-up of the low voltage signal at input C. If the measured voltage at input C
falls off of the set value, the alert will become activated.
4. Technical Specification of the MU-3
Technical Data
MU-3
Dimensions
36 x 20 x 5 mm
Weight incl. wiring
18 g
Range of measured data
A: 0-9,9V B,C: 0-20V
Measurement accuracy
1%
Temperature
range
of - 10°C till + 85° C
operation
Supply
voltage
3,5 – 8,4V
Current consumption
8 mA
5. Warranty
The MU-3 carries a warranty valid 24 months from the date of purchase under the condition that it
has been operated as per these instructions and there is no mechanical damage. All servicing and
repairs during and after the warranty period is carried out by the manufacturer.
The manufacturer hopes you enjoy this product: JETI model s.r.o. Příbor, www.jetimodel.cz
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INSTRUCTION MANUAL: MU-3
6. Menu Diagram of MU-3
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