Manual Aritech PB601 (page 5 of 16) (English, French, Swedish)

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4.3 Adjust the optics with the adjustment screws until the highest tone is

reached.

Note: There will be no sound if the attenuation alignment tone LED

is lit.

4.4 Attach the shading plates to the upper optics of TX/RX and repeat the

adjustment.

4.5 After adjusting, replace the shading plate in the storage areas of the TX/

RX.

4.6 Turn the alignment tone indicator to OFF.

Using a voltmeter for beam alignment: (figure i)

A precise alignment can be achieved using a voltmeter (10 VDC). Insert

leads from the voltmeter into the monitor jacks of the receiver. See table

of figure i for output voltage.

5. Reattach the cover

5.1 First attach the transmitter cover.

5.2 Confirm that the receiver sensitivity attenuation LED stays

OFF. Pre-attach the receiver cover but do not secure.

5.3 A beep sound will occur after 5 seconds. Once this occurs,

secure the receiver cover with screws.

Note 1: Sensitivity allowance is automatically set when the beep

sound is initiated.

Note 2: If the tone alignment switch is left accidentally ON, the

tone will stop when the receiver cover is pre-attached.

5.4 If there is a continuous beep sound, detach the receiver

cover and re-adjust. Refer to section 5, part C Auto-gain lock

function for more information.

4. CHECKING THE OPERATION (FIGURE j)

After installing, aligning and auto-gain setting, test the operation by

walk-testing the beam. Two methods can be used:

1. Alarm LED only.

2. Alarm LED and sound check via tone alignment switch. If the tone

alignment switch is set to ON, the tone will stop when the cover is

replaced. However, the tone will effective for an audible operation test

for five minutes when the auto-gain is locked.

5. FUNCTION DESCRIPTIONS

A. Four-channel frequency selection (figure k)

The beam pairs may be set at various frequency levels to avoid cross-

talk between the units that are stacked, in-line, or have other configura-

tions where there is potential for spill-over transmission from one beam

to another. Set the frequency level as shown:

Note: The transmitter and receiver must be set at the same

channel! Paired TX/RX will not set up unless they are set at the

same channel.

1. Line protection

2. 2-stacked protection

3. Line and 2-stacked protection

4. Perimeter protection

5. Perimeter 2-stacked protection

Note 1: It is advised to use a voltmeter when aligning to ensure

the highest level of stability.

Note 2: Upper and lower sensors should have the same model

numbers in stacked configuration.

B. Beam power selection

This option allows the field selection of the appropriate intensity relative

to the application. For distances significantly less than the specified

protection distance, reduce the beam intensity to eliminate potential

reflection problems. For zones reaching maximum protection distance,

set the beam level to the highest level.

Model Beam power (m)

L o w High

PB601 £ 25 25-50

PB611 £ 75 75-100

PB621 £ 150 150-200

C. Auto-gain lock function

1. The auto-gain lock standardizes the responsiveness and tolerance

level of the units regardless of the variable installation distances. As

shown in the figures below, the two situations have exactly the same

tolerance and responsiveness levels even though the distances are

different.

2. The receiver issues a beep tone approximately five seconds after the

cover is put in position. This tone indicates that the auto-gain has been

set. See table "Setting auto-gain" on the next page.

Note 1: A tone is generated regardless of whether the bee

(alignment tone) switch is set to ON or OFF.

Note 2: The auto-gain setting is locked in for approximately two

weeks even if power is disrupted.

Note 3: If the receiver cover is detached while power is supplied,

or if power is discontinued for longer than two weeks (but the cover

is still in place), the auto-gain automatically resets to maximum

sensitivity. (Gain is automatically locked when power returns).

D. Tone indicator

This feature provides audible testing or signals for the items listed in the

table "Tone indicator" on the next page.

E. Response time changeover function (figure l)

Response time (sec.). 1. Response 0.05 sec: running. 2. Response 0.3

sec: walking quickly; 3. Response 0.7 sec: walking.

This feature is used to modify the response time of the beam to best

suit the application.

F. Environmental module

The environmental signal is initiated if the beam reception level is

reduced by around 50% or more. The module watches for a gradual

degradation of the beam reception, which indicates extremely poor

weather conditions. Select NC or NO signal output. Contrast capacity

30 VAC/VDC, 1A or less.

NO NC

G. Alarm memory function (figure m )

1. Alarm output; 2. Memory LED; 3. Alarm memory input; 4. Logic L;

5. Logic H; 6. Beep sound at beam interruption (alignment tone ON).

The alarm memory LED shows which sensor has triggered when two

or more sensors are placed on a zone. An audible tone can also be

selected. Reset can be automatic or manual.

1. Auto reset

The memory LED will light for five minutes after an alarm signal and then

continues to flicker for 55 minutes before returning to normal mode. If

additional alarm signals are triggered, the process repeats.

2. Manual

The memory LED lights with the reset button switched over. The

memory is reset manually by a rest button open (L) or closure (H). The

reset button can be placed in any convenient location on the premises.

3. Tone alarm with LED

If an audible signal desired in conjunction with the memory LED, turn the

alignment tone switch to ON.

Note: If the alarm memory function is not used, set the memory

selector to manual and leave the receiver terminal 10 uncon-

nected. (The logic switch can be either in the H or L position).

6. EXTERNAL DIMENSIONS

See figure n.

1. Less than protection distance

2. Maximum protection distance

Memory selector (auto-reset - manual)

Manual memory logic switch (H - L)

- 5 -

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Aritech PB601 Manual

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