Promax PROLITE-20 User manual

INSTRUCTION MANUAL. PROLITE-20/21
English
TABLE OF CONTENTS
1 GENERAL....................................................................................................................1
1.1 Description..............................................................................................................1
1.2 Specifications..........................................................................................................1
2 SAFETY RULES..........................................................................................................5
2.1 General...................................................................................................................5
3 INSTALLATION............................................................................................................7
3.1 Power supply..........................................................................................................7
3.1.1 Operation using the external DC adapter ........................................................7
3.1.2 Operation using the battery..............................................................................7
3.1.3 Battery charging...............................................................................................8
3.2 Battery installation ..................................................................................................8
3.3 Installation and start up...........................................................................................9
4 OPERATING INSTRUCTIONS .................................................................................11
4.1 Description of the controls and components ........................................................11
4.2 Instrument configuration.......................................................................................12
4.2.1 Meter mode....................................................................................................14
4.2.2 Acquiring the reference power. (Set Ref.Level).............................................14
4.2.3 Selecting the wavelength state (Set WaveLength)........................................14
4.2.4 Selecting reading display ...............................................................................15
4.2.5 Speaker configuration (Speaker) ...................................................................15
4.2.6 Display backlight (BackLight).........................................................................16
4.3 Taking readings ....................................................................................................16
4.3.1 Measuring Absolute Power............................................................................16
4.3.2 Measuring Relative Power.............................................................................17
5 MAINTENANCE.........................................................................................................19
5.1 Cleaning Recomendations....................................................................................19
5.2 Battery replacement..............................................................................................19

INSTRUCTION MANUAL. PROLITE-20/21

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INSTRUCTION MANUAL. PROLITE-20/21
Page 1
English
OPTICAL POWER METERS
PROLITE-20 and PROLITE-21
1GENERAL
1.1 Description
The PROLITE series has been specifically designed for the *operation (start-up) and
maintenance of optical fibre installations. This series consists of two light sources, the
PROLITE-80 and the PROLITE-81, and two optical power meters, the PROLITE-20 and
the PROLITE-21.
The PROLITE-20 and the PROLITE-21 are two portable, sturdy, low-weight optical
power meters, tailor-made for hand-held work. These features make them ideal tools for
field work.
The basic difference between the PROLITE-20 and the PROLITE-21 is their
measuring range. Whereas the PROLITE-20 measures power between - 50 dBm and
+ 25 dBm, for the different wavelengths available, the PROLITE-21 can measure power
between - 70 dBm and + 5 dBm
In both models, when the battery is flat, the low battery (LB) indicator on the screen
flashes and, approximately every 2 s, whether it is activated or not, the speaker also
emits a whistle.
1.2 Specifications
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OPTICAL INPUT
Detector type InGaAs
Wavelength range 820 nm to 1625 nm
Calibrated wavelengths 850 nm, 1300 nm, 1310 nm, 1550 nm
Input connector Exchangeable (see accessories)
Maximum signal
PROLITE 20 + 27 dBm 1
PROLITE 21 + 10 dBm
1For 1300,1310 and 1550 nm

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Page 2 February 2001
POWER METER
Meter range
PROLITE 20 - 50 dBm to + 25 dBm 1
PROLITE 21 - 70 dBm to + 5 dBm
Meter range selection Automatic
Units: dBm , dB
Resolution 0.01 dB
Accuracy ± 0.2 dB (5%) 2
Linearity ± 0.05 dB 3
Temperature stability ± 0.3 dB at 850 nm and ± 0.2 dB at 1550 nm
Display 16-digit, alphanumeric LCD with backlight.
Reading
Numeric dBm in absolute power mode and dB in relative
power mode.
Graphic Bar graph.
PROLITE 20 from - 40 dBm to + 25 dBm
PROLITE 21 from - 60 dBm to + 5 dBm
Fibre modes MM and SM
Tone detector 270 Hz, 1 kHz and 2 kHz (±1%) acoustic
PROLITE 20 from - 30 dBm to + 25 dBm
PROLITE 21 from - 50 dBm to + 5 dBm
POWER SUPPLY
Battery 7.2 V, 950 mAh, Ni-Cd battery
Low battery indication LB flashes at the far right of the display.
Autonomy Typically 30 h, without a backlit display
Charging time 14 hours with a completely flat battery.
Battery charger mains adapter 230 V/50-60 Hz/10 W (EUROPE and other
countries)
Power consumption 1.5 W
OPERATING ENVIRONMENTAL CONDITIONS
Altitude Up to 2000 m
Temperature range
operating From 0 to +40 º C
storage From –10 to +60 º C
Max. relative humidity 50 % to 30º C, 10 % to 40º C
1For 1300,1310 and 1550 nm
2For 1308 nm and – 10 dBm, using 9/125 m fibre, at 23±1 ºC, with a source whose spectrum-
width is < 0.2 nm and an FC connector.
3From - 40 dBm to 0 dBm for the PROLITE-20 and from - 60 dBm to 0 dBm for the PROLITE-21

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MECHANICAL FEATURES
Dimensions 90 mm (W) x 218 mm (H) x 50 mm (D)
Weight 495 g
INCLUDED ACCESSORIES
1x AA-012 Car lighter adapter cable
1x AL-013 EUROPE and other countries 230 V / 50-60 Hz mains power adapter
1x AL-023 USA and CANADA 120 V / 50-60 H mains power adapter
(only with the OPT-01).
1x CB-038 Rechargeable battery 7.2 V, 950 mAh
OPTIONAL ACCESSORIES
1x AD-070 ST Connector
1x AD-071 E2000 Connector
1x AD-072 SC Connector
1x AD-073 FC Connector
1x AD-074 SMA Connector

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2SAFETY RULES
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2.1 General
*When using some of the following accessories use only the specified ones to
ensure safety. Rechargeable battery
External DC adapter
*Observe all specified ratings both of supply and measurement.
*Remember that voltages higher than 60 V DC or 30 V AC rms are dangerous.
*Use this instrument under the specified environmental conditions.
*The user is only authorised to carry out the following maintenance operations:
Battery replacement.
On the Maintenance paragraph the proper instructions are given.
Any other change on the equipment should be carried out by qualified personnel.
*Follow the cleaning instructions described in the Maintenance paragraph.

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Page 6 February 2001
*Symbols related with safety:
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DIRECT CURRENT
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ALTERNATING CURRENT
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DIRECT AND ALTERNATING
GROUND TERMINAL
PROTECTIVE CONDUCTOR
FRAME TERMINAL
EQUIPOTENTIALITY
ON (Supply) / OFF (Supply)
DOUBLE INSULATION
(CLASS II protection)
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CAUTION
(Risk of electric shock)
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CAUTION (Refer to manual)
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FUSE

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3INSTALLATION
3.1 Power supply
The PROLITE-20/21 is a portable instrument powered by a 7.2 V, 950 mA/h, NiCd,
rechargeable battery. The device is accompanied by an external DC adapter which
enables the PROLITE-20/21 to be connected to the mains for operation and battery
charging.
3.1.1 Operation using the external DC adapter
The instrument comes with a 230 V / 50-60 Hz mains adapter, for EUROPE and other
countries, for powering the PROLITE-20/21. (See accessories for ordering other types of
adapters.)
Once the battery is installed in the instrument, connect the external DC adapter to the
PROLITE-20/21 using the external power connector [8] located on the left side. Connect
the DC adapter to the mains, thereby starting the battery charging process. Next, press
the start/stop button [4] on the PROLITE-20/21. Under these conditions, the instrument
starts to function. Battery-charging time increases if the instrument is used during the
process.
WARNING
Before connecting the mains adapter, make sure that it is the appropriate one for
your mains system.
The mains adapter is designed for indoor use.
Never start the instrument with the external adapter connected if the battery is not
in place.
3.1.2 Operation using the battery
For the instrument to work using the battery, you need only press the start/stop button
[4]. With the battery fully charged and the display not illuminated, the PROLITE-20/21
has an approximate autonomy of 30 hours uninterrupted operation.
When the battery is flat, you will see the low battery indicator on the screen and,
afterwards, the instrument will automatically switch off.

INSTRUCTION MANUAL. PROLITE-20/21
Page 8 February 2001
3.1.3 Battery charging
To fully charge the battery with the PROLITE-20/21 switched off, connect the external
DC adapter to the power supply input [8]. Then connect the adapter to the mains.
Charging time depends on the state of the battery. If the battery is very flat, charging will
take some 14 hours.
3.2 Battery installation
Only use CB-038 batteries.
To install the battery, place it on the base of the arrows at the rear of the instrument.
Slide it in until you hear a “click” and the battery is secured, as shown in figure 1.
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Figure 1.- Battery installation.
Battery removal
The battery is accessible from the rear of the instrument. To disconnect the battery,
press the flange located at the bottom (1) and proceed to separate the battery from the
instrument body (2). The battery will come away from its housing. Then slide it out, as
shown in figure 2.
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Figure 2.- Battery removal.

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3.3 Installation and start up
The PROLITE-20/21 has been designed for use as a portable instrument. When the
battery is inserted in its housing and the instrument switched on, for a few seconds, the
display will show the name of the instrument and the software version. E.g. in the case of
the PROLITE-21:
Figure 3.-
A fully charged battery will power the instrument for some thirty hours if the display is
not illuminated. The battery should be recharged when the low battery indicator (LB)
appears on the display.
When installing a completely flat battery, you may find that the PROLITE-20/21 starts
up due to residual charges, however, the instrument will automatically disconnect before
the low battery indicator appears on the display.

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4OPERATING INSTRUCTIONS
4.1 Description of the controls and components
Front panel
Figure 4.-Front View.

INSTRUCTION MANUAL. PROLITE-20/21
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[1] Input connector
Maximum input level: + 27 dBm for the PROLITE-20 y + 10 dBm for the
PROLITE-21.
[2] Backlit alphanumeric display.
[3] Rotary selector. Used to access the configuration menu, change the states of the
various parameters and select the different options.
[4] Star/stop key.
[5] Computer connection for calibration
Never connect any cable which has not been supplied by the
manufacturer as it may seriously damage the instrument.
[6] Speaker
[7] Display contrast control
[8] Exterior power supply and charging input.
4.2 Instrument configuration
The configuration screen enables the following parameters to be modified:
-Selects the active meter mode as either Absolute (Absolute Mode) or Relative
Power Meter Mode (Relative Mode).
-The reference value of the active wavelength in Relative Power Meter Mode
(not available in Absolute Power Meter Mode). Set Ref. Level.
-Selects the state of the wavelength as either selective or non-selective: Set
Wavelength.
-Selects how the reading is to be shown on the display, either Numeric Level
or Bar Graph Level.
-Speaker activation/deactivation (Speaker).
-Backlight activation/deactivation (BackLight).

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Figure 5.- Flow diagram
To access the PROLITE-20/21 configuration menu when the instrument is on, keep
the rotary selector pressed down a few seconds until the configuration menu appears
(you will hear a second beep).
To leave the configuration screen, turn the rotary selector until Exit appears on the
display, then confirm by pressing the selector. You will be taken back to the meter screen.

INSTRUCTION MANUAL. PROLITE-20/21
Page 14 February 2001
4.2.1 Meter mode
Press the rotary selector to select the desired meter mode. The configuration will
change sequentially.
Absolute Mode Absolute Power Meter Mode .
Relative Mode Relative Power Meter Mode. The reference value is measured by
selecting Set Ref.Level.
This option is not available in bar graph form.
4.2.2 Acquiring the reference power. (Set Ref.Level)
(Only available in Relative Power Meter Mode )
Enables the reference value for the active wavelength to be acquired, taken, simply
by pressing the rotary selector.
To acquire the reference power, press the rotary selector when Set Ref. Level
appears on the display, then keep it pressed down until the instrument finishes taking the
reading and automatically leaves the configuration mode. During the acquisition process,
the display will show (from left to right) a series of asterisks indicating how the acquisition
is proceeding.
If you stop pressing the rotary selector during the measurement process, the process
halts and the instrument continues to use the previous reference value.
4.2.3 Selecting the wavelength state (Set WaveLength)
Enables the state of the different wavelengths to be configured, helps determine is a
specific wavelength can be selected by repeatedly pressing the rotary selector. This
option is not available when using the bar graph.
When Set WaveLentgh appears on the display, confirm by pressing the rotary
selector. The display will show the longitude of the first of the four available wavelengths
(in nm) and its state (ON if it can be selected, OFF if not). The state may be modified by
pressing the rotary selector. To alter the state of other wavelengths, turn the rotary
selector until the desired wavelength appears on the display, then press the rotary
selector to modify its state. Once you have completed the modifications you need, you
can return to the main menu by turning the rotary selector until Exit appears on the
display, then press the rotary selector to confirm.

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4.2.4 Selecting reading display
Enables selecting between numeric reading display (Numeric Level) and bar graph
display (BarGraph Level), when taking readings. Bar graph display is not available in
Relative Power Meter Mode.
In bar graph mode, the instrument display shows a bar graph indicating the absolute
power and, on the far right, the numeric figure corresponding to the absolute value without
units.
To select the bar graph display, keep the rotary selector pressed down until the
configuration menu appears on the display. Turn the rotary selector until you see Numeric
Level (numeric display) and press the selector to change to bar level display (BarGraph
Level). Leave the configuration menu by turning the rotary selector until Exit appears, then
press the selector to confirm.
In bar graph display it is not possible to change the longitude of the active wavelength
or the meter mode. Only the configuration menu options corresponding to the graphic
display and the backlight can be changed. The configuration menu options available in
this display mode can be easily accessed by pressing the rotary selector.
To return to numeric display, press the rotary selector to access the configuration
menu. The screen will show BarGraph Level. Change to numeric display (Numeric Level)
by pressing the selector and leave the configuration menu by turning the rotary selector
until Exit appears, then press the selector to confirm.
4.2.5 Speaker configuration (Speaker)
(Only available in numeric display mode)
Enables speaker activation/deactivation (ON/OFF). The PROLITE-20/21
automatically detects if the light striking the instrument is modulated by a 270 Hz, 1 kHz or
2 kHz signal. If it has been activated, the speaker emits a sound at the same frequency
as the modulation (270 Hz, 1 kHz or 2 kHz).
To activate/deactivate the speaker, turn the rotary selector until you see Speaker on
the display, then press the selector to change the configuration. The configuration will
change sequentially.

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4.2.6 Display backlight (BackLight)
Enables backlight activation/deactivation (ON/OFF). The possibility of illuminating the
display enables you to comfortably work under poor lighting (night-time, badly lit locations,
etc.) and, therefore, increases the number of situations where it is particularly useful.
To activate/deactivate the backlight, turn the rotary selector until you see BackLight
on the display, then press the selector to change the configuration. The configuration will
change sequentially.
The instrument enables the display backlight to be activated even when the battery is
relatively flat and the low battery indicator appears on the display. In this case, you should
be particularly aware that activating the display illumination decreases autonomy by
consuming energy.
4.3 Taking readings
The PROLITE-20/21 has two meter modes: the Absolute Power Meter mode and the
Relative Power Meter mode.
4.3.1 Measuring Absolute Power
In this meter mode the instrument measures absolute power (in dBm) at the selected
wavelength.
To select this meter mode, access the configuration menu by keeping the rotary
selector pressed down a few seconds (until you hear a second beep). You will then see
the active meter mode: Absolute Mode in the case of Absolute Power Meter Mode or
Relative Mode in the case of Relative Power Meter Mode. Select the absolute mode by
pressing the rotary selector (Absolute Mode will appear on the display). Leave the
configuration menu by turning the rotary selector until Exit appears, then press the
selector to confirm.
The display will show the value corresponding to the measured power (in dBm) and
the wavelength (in nm) at which it is being measured.
The wavelength at which the absolute power is measured can be selected from those
available (ON state, see 4.2.3) by repeatedly pressing the rotary selector until it appears
on the display.

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4.3.2 Measuring Relative Power
In this meter mode the instrument measures relative power (in dB) at the selected
wavelength.
The display will show the value corresponding to the difference between measured
power and the reference power (in dB) and the wavelength at which it is being measured.
The wavelength at which you wish to measure the relative power can be selected
from those available (ON state, see 4.2.3) by repeatedly pressing the rotary selector until
it appears on the display.
Once you have selected the wavelength, access the configuration menu by pressing
down the rotary selector a few seconds (until you hear a second beep). The active meter
mode will then be shown: Absolute Mode in the case of Absolute Power Meter Mode or
Relative Mode in the case of Relative Power Meter Mode. Select the relative mode by
pressing the rotary selector (Relative Mode will appear on the display) and proceed to
obtaining the reference power. To obtain it, turn the selector until you see Set Ref.Level
on the display and keep pressed down until the instrument finishes data acquisition,
automatically leaves the configuration menu and begins to measure using the new
reference value. During the acquisition process, the display will show a series of asterisks
appearing from left to right, indicating how the acquisition is proceeding.
If you stop pressing the rotary selector during the acquisition process, the process
halts and the instrument continues to use the previous reference value.
The instrument stores a reference power for each available wavelength. In the case of
no new reference power being measured, the value used by the instrument will
correspond to the last reference power obtained.

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