CHAPTER 3 OPERATING INSTRUCTIONS - TM-5-6350-262-14-30016

CHAPTER 3

OPERATING INSTRUCTIONS

Section I. CONTROLS

3-1. General

The processor/detector vibration signal consists of one processor and from one to twenty detectors. The processor, when

operating, is a closed unit and contains one SENSITIVITY control that is preset during the checkout procedures. The

detector, when operating, is a closed unit and contains a GAIN control that is preset during the checkout procedures.

There are no operator/crew controls associated with this equipment.

3-2. Controls

a. Processor. The processor has a SENSITIVITY control (R47) (fig. 1-1) which sets the sensitivity level of the

output front three broadband amplifier stages. This control facilitates sensitivity adjustment of the processor to

compensate for the number of detectors in the processor/detector vibration signal and the extreme range coverage which

may be encountered between the detectors. This control is used only during installation adjustment to compensate for

changes in environment in the protected area or during periods of maintenance.

b. Detector. Each detector has a GAIN control (R6) (fig.1-1) which sets the detector gain level for optimum

detection performance. This control is used only during installation adjustment to compensate for changes in

environment in the protected area or during periods of maintenance.

Table 3-1. Controls

Control

Function

Sensitivity R47

Sets the processor sensitivity level.

Dial is indexed from 1 to 5

Note: Each dial number represents a 6 db change.

Gain R6

Sets the detector gain level. Dial is indexed from 1 to 10.

Note: Gain is down to 10 db when going from 10 to 7 on the dial.

Section II. OPERATION UNDER USUAL CONDITIONS

3-3. General

The usual conditions of operation are during the absence of normal authorized personnel and the, potential presence of

unauthorized personnel in the, surveillance area.

3-4. Operation

Once the processor and the detectors have been installed and checked out (chapter 2) the only remaining procedure of

operation is to establish the operating time periods for the equipment.

a. Starting Procedure. Control of the processor/detector vibration signal is by means of the J-SIIDS control unit.

Refer to TM -6350 262-14/14.

b. Initial Adjustment. Initial adjustment of SENSITIVITY control (R47) (fig.1-1) (processor) and GAIN control (R6)

(fig. 1-1) (detector) was performed following the installation in Chapter 2. No further adjustments are required.

c. Operation Procedure. Refer to TM 5 6350 262-14 /14 for operating procedures.

Section III. OPERATION UNDER UNUSUAL CONDITIONS

3-5. Unusual Operating Conditions

Unusual conditions of operation may occur when faulty moving machinery generates excessive vibration which is

transferred to the area being protected resulting in a nuisance alarm.

3-6. Emergency Operation

Operation with the knowledge of incomplete surveillance coverage or faulty tamper circuit (nonmalicious), may be

continued knowing that 100 percent protection is not available. Operation under these conditions should be held to an

absolute minimum.

NOTE

Installation of air moving equipment, radiators, heavy machines, etc. alters the conditions

under which the original equipment was adjusted. If this occurs, a repeat of the

appropriate steps in paragraph 2-8d(3) is required to insure adequate surveillance

coverage.

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