Promax 6 Bedienungsanleitung

CABLE TV ANALYZER

PROMAX-6

1 GENERAL INFORMATION

1.1 Description

The PROMAX-6 is an advanced model signal level meter designed for the

installation and maintenance of reception and distributions systems for analogue

and digital television signals. Its frequency range makes it into an excellent

instrument for FM radio, collective TV (MATV) and cable TV applications (CATV),

including the sub-band (return channel).

The PROMAX-6 can carry out all the measurements necessary for ensuring

good operation of any installation within the 5 to 862 MHz range as it incorporates

the basic functions for signal analysis in an accurate, sturdy, economical and easy

to use device. It can carry perform the following types of measurements:

Analogue channels: - Carrier level meter

- Carrier to Noise (C/N) ratio meter

- Video to Audio (V/A) ratio meter

Digital channels: - Channel power meter

- Carrier to Noise (C/N) ratio meter

All the measurements for both analogue and digital channels are direct, i.e.

PROMAX-6 automatically carries out all the necessary corrections in accordance

with the type of signal to be measured.

The PROMAX-6 is the result of intensive work in research and the experience

of more than thirty years in the development of instrumentation for television. It

enables the measurement of the signal level with a high degree of accuracy; it

incorporates a series of functions for evaluating the picture quality.

99 Washington Street

Melrose, MA 02176

Fax 781-665-0780

TestEquipmentDepot.com

Its design, based on a control system with an intelligent microprocessor,

provides the user with easy-to-use advanced features. The digital control system

allows the user to make most of the necessary operations automatic in order to

optimize the measurement process; for example, continuous frequency synthesis,

correction of linearity and flatness errors, the proper selection of attenuators and

automatic cut-off if the instrument remains inactive for a certain period of time. To

enhance its features, it allows a plan of up to 239 channels.

Its accuracy and reliability satisfy the requirements of the most demanding

users.

The signal level measured is shown numerically on an LCD display in absolute

values. It is also equipped with a computer connection which allows one to

personalize the configuration of the instrument.

The instrument is powered by an external rechargeable battery and it is safe to

use outdoors.

The implementation of all these functions in an instrument weighing only half

a kilo, makes the PROMAX-6 an incomparable work tool.

Every detail has been carefully studied to achieve the best possible balance

between its features and its operability. The result is an easy-to-handle piece of

equipment with advanced functions, which may be used even by non-specialized

personnel.

1.2 Specifications

Tuning

Tuning range From 5 to 862 MHz

Tuning mode By channels or frequency

Channel plan CCIR (1) (2)

Frequency 62.5 kHz resolution

Indication LCD alphanumeric display with back lighting

Level measurement

Measurement

Analogue channels Level measurement associated with video carrier

Digital channels Power measurement on the equivalent bandwidth for

QAM signals (7 or 8 MHz).

Measurement range

Analogue channels From 25 to 120 dBµV (-35 dBmV to 60 dBmV) (3)

Digital channels From 34 to 129 dBµV (-26 dBmV to 69 dBmV)

Readout Digital in dBµV (or dBmV(1) (2)). 1 dB resolution

IF bandwidth 230 kHz ± 50 kHz

Input impedance 75 Ω

Audible indicator Tone which varies with the signal level

Accuracy

Analogue channels ± 2 dB (from 0 to 40 ºC) (4) for negative video

modulation(4).

Digital channels ± 3 dB (from 0 to 40 ºC) for 8 MHz bandwidth

channels.

Video/Audio (Analogue channels)

Measurement Ratio of video to audio carrier levels

Range From 0 to 40 dB

Audio subcarrier frequency

Standard 5.5 MHz (1) (2)

Variable 4 - 9 MHz

Accuracy ± 2 dB (from 0 to 40 ºC) for FM audio carrier (5)

Carrier-to-Noise

Measurement

Analogue channels Ratio between carrier level and the channel's noise

level.

Digital channels Ratio between the power level of the channel and the

noise level outside it or between adjacent channels.

Measurement range

Analogue channels 40 - 50 dB (input level > 60 dBµV)(6)

Digital channels 15 - 40 dB (input level 80 dBµV)

Accuracy ± 3 dB (45 - 862 MHz), ± 4 dB (5 - 45 MHz)

Sound

Demodulation AM / FM

Output Internal speaker / external headphones

Power supply

NiCd battery 7.2 V - 0.8 Ah

Low battery indicator Indication on the display

Battery life 1 hour and 45 minutes (30% on/off)

Automatic cut-off Cut-off after approximately 12 minutes of non-use

Mains to charger adapter 230 V / 50-60 Hz / 12 W minimum (EUROPE and

other countries).

Battery charger By fast external charger. 12-16 VDC / 12 W

Equipment consumption 4.7 W

Environmental conditions

This equipment could be used on the following environmental conditions, in this

conditions the specifications could also be applied.

- Altitude: up to 2000 metres

- Temperature range: from 5ºC to 40ºC

- Maximum relative humidity 80% (up to 31ºC), decreasing lineally up to

50% at 40ºC.

- Degree of protection provided by the enclosure: IP-23 (tested for safety

according to IEC529 and IEC1010-1).

Mechanical features

Dimensions 70 W (90 on the display) x 218 H x 50 D mm

Weight 580 g. (including battery)

(1) Under request carried out at the factory. (See option OPT-006-61)

(2) May be configured by PC by means of the RM-006 program. (See optional

accessories).

(3) There may be certain frequencies where the symbol "<" appears at levels

higher than 25 dBµV (maximum 28 dB). This is due to the automatic correction

of the frequency response.

The value measured remains correct, although the accuracy becomes ±3 dB

(4) For the positive video modulation (Stand. L) it can vary from 0 to -2 dB among

white and black image.

(5) For the AM audio carrier (Stand L), it can vary from 0 to -3 dB below the V/A

value.

(6) See appendix E

Accessories included

AL-012 EUROPE and other countries 230 V / 50-60 Hz mains adaptor (basic

version only).

AL-022 USA and CANADA 120 V / 50-60 Hz mains adaptor (only with the

OPT-006-1).

AL-032 UK 230 V / 50-60 Hz mains adaptor (only with the OPT-006-2)

AL-042 Australia 240 V / 50-60Hz mains adaptor (only with the OPT-006-3)

AL-052 Japan 100 V / 50-60 Hz mains adaptor (only with the OPT-006-4)

AA-012 Car supply adapter cable

DC-234 Carrier case

DC-286 Carrier belt

AD-057 F/h - F/h input adaptor

AD-058 F/m - F/h rapid adaptor

CC-030 F/m - F/m (1m) coaxial cable

CB-410 Battery charger module

CB-038 7.2 V, 0.8 Ah NiCd rechargeable battery

Options

OPT-006-1 Substitute mains adapter for AL-022

OPT-006-2 Substitute mains adapter for AL-032

OPT-006-3 Substitute mains adapter for AL-042

OPT-006-4 Substitute mains adapter for AL-052

OPT-006-61 Change channel tables, units of measurement, etc. (Carried out

under request in the factory).

Optional accessories

AD-055 F/h - BNC/h adaptor

AD-056 F/h - IEC/h adaptor

DC-284 Rubber holster

CB-038 7.2 V, 0.8 Ah NiCd rechargeable battery

RM-006 Programming pack. Enables the change, by means of a PC, of the

channel tables, measurement units (dBµV, dBmV) etc.

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

FAX 781.665.0780 - TestEquipmentDepot.com

2 SAFETY RULES

* Use this equipment connected only to devices or systems with their common at

ground potential.

* Use this equipment in Category I installations and Pollution Degree 2

environments

* When using some of the following accessories use only the specified ones to

ensure safety.

Power adaptor

Rechargeable battery

Cigarette lighter adaptor

Battery charger

* Observe all specified ratings both of supply and measurement

* Use this instrument under the specified environmental conditions

*The user is only authorized 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

3 INSTALLATION

3.1 Power supply

The PROMAX-6 is an portable instrument powered by a built-in 7.2 V NiCd

rechargeable battery. Before taking any measurement, the user should make sure

that the battery is fully charged (use the charge/discharge charger supplied with the

instrument).

3.1.1 Recharging the battery

The battery charger has an automatic safety circuit to prevent any possible

damage to the unit as a result of defective batteries.

The instrument is equipped with a 230 V / 50-60 Hz mains adaptor for Europe

and other countries to power the battery charger. (See accessories to place an

order for other types of adapters.)

1) Connect the cable from the mains adapter to the charger. Connect the

adapter to the mains. Insert the battery in the charger once the adapter-

charger is connected to the mains.

2) Discharge the battery prior to carrying out the charging process in order to

eliminate any possible residual charge. In order to do so, press button A

situated on the right (see figure 1). At this point, a small yellow light comes

on and the process of discharging is under way. When discharging is

completed, the charger automatically sets the process of charging

underway.

3) The charging process lasts for two and a half hours. When the process is

completed, the three red indicators will light up. At the same time, an

indicator will flash and an acoustic alarm will sound for 90 seconds,

indicating that the charging process has been successfully completed.

4) After this period, if the battery is not removed from the charger it will remain

in permanent minimum charge mode. A green LED will flash until thebattery

is removed.

CAUTION

1) Before using the charger, make sure that the adapter is suitable for the

mains voltage. An indicator will light up when the adapter is connected to

the mains and the charger is connected.

2) This charger is designed for charging Ni-Cd batteries.

3) In order to prolong the lifetime of the batteries, it is advisable not to remove

it from the charger while the charging process is still under way.

4) The mains adapter and the battery charger are designed for indoor use.

5) When using the battery first time, it is advisable to carry out two charging

and discharging processes into the charger itself, in order to eliminate any

possible memory effect, accumulated during the period it has been in

storage.

Figure 1.- CB-410 battery charger and mains adapter.

3.2 Installing the battery

Attaching the battery

Use CB-038 batteries only.

To attach the battery, position it on the base of the arrows found on the back

of the instrument. Slide the battery until you hear a click and it remains fixed,

as shown in the figure 2.

Figure 2.- Installation of the CB-038 battery.

Removing the battery

The battery is accessible from the back of the instrument. To disconnect the

battery, press the tab found at one end of it (1) and move the battery to

separate it from the body of the instrument (2). The battery will be released

from its holder. Then slide the battery out, as shown in figure 3.

Figure 3.- Removing the battery.

3.3 Installation and start-up

The PROMAX-6 has been designed for use as portable equipment. When the

battery is installed and the instrument is connected, the version of the instrument

and the channel plan which it has stored will appear on the display for a few

moments.

When this indication appears, the instrument is in channel tuning mode. By

means of the program RM-006, one can select the starting up of the instrument in

one of the three tuning modes: FREQ or CHAN.

When the ON/OFF key [12] is pressed, the instrument is then in "automatic cut-

off" mode; in other words, the device is automatically disconnected when twelve

minutes in operation have gone by without a key being pressed.

The automatic cut-off mode can be deactivated by holding down the ON/OFF

key for one or two seconds when the device is connected. The indicator "manual

power off" will appear on the display.

If the battery is low (at a voltage of less than 6.5 V), a blinking LOW BATTERY

message will appear on the display [3]. When the voltage is lower than 6.0 V, the

instrument disconnects.

A fully charged battery can power the equipment non-stop for more than an

hour and a half. At 30% stop/start of intermittent operation, the battery can power

it for up to five hours. When the LOW BATTERY indicator appears, the battery must

be recharged.

When a fully discharged battery is installed, it is possible that, due to residual

charges, the PROMAX-6 may start up. In this case, the instrument will

automatically disconnect before the message LOW BATTERY appears on the display.

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

FAX 781.665.0780 - TestEquipmentDepot.com

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