eas security alarm lagging systems XST-T05W

Specifications

EAS Security Alarm Lagging Systems XST-T05W

Technical parameters and specifications

Detection distance: 1.0-1.8 meter (depending on performance of labels / tags synchronization, quality of power source and noise level of environment )
Center frequency: 8.2 ± 0.5MHZ
Detection region: ≥95%
Power source:220/110VAC±100%  50/60hz
Power consumption : ≤15W
Buzzer volume : high and medium
Alarm sound duration :5S
Size appearance: 1650 ×500 ×140mm
Antenna Materials: Stainless Steel
Weights: 8kg /per set
Color: Gary white, Champagne, and silver.
Material: The luxurious stainless steel, the steel pipe spurt model (coca anti-collision spring), steel plate base.

General technical problem solving

1, "advanced EAS systems" system, basic principle and working principle?

Answer:

Basic principle: 7.5 MHz launched by the antenna MHz modulated signal ~ 8.3, and receiving antenna produce an alert electric field, and when have the same frequency label into electric field, which produce resonance, occurred alerts.

Working principle: modulator - rf power amplifier - antenna furnace-rough oscillators

Antenna - high frequency amplifier - detection - filters - signal recognition - alarm

2, rf system by which a few parts?
Answer:

Rf system consists of: antenna, receiving antenna, rf power and decoder, decoding board, lock device, soft, hard tags, the five parts.

3, rf system to work environment request and influence mainly what several factors?
Answer:

1.) systems use the power must be independent power (from the general distribution box derivation, midway can't catch lighting or other equipment).

2). The installation using: general decoders 1.5 metres away from system to use.

3). System 1.5 meters scope, can not have large metal and rolls coil.

4.) around the system may not use large electrical appliances, motor (such as the refrigerator, welding machine, etc.)

4, model and the advantages of the hard and soft tags in standard under the environment of the highest detection distance (M)? Usually this model in engineering installation installed distance away from the door?
Answer 1:

Advantages: (1) prevent caustic antenna system adopts streamline shape design is novel and attractive, suitable for any style of store environment.

(2) system USES cutting-edge DSP technology and patent ABNF (noise processing) and SSC (intelligent sensitivity adjustment) technology and unique tags dynamic testing technology, can effectively remove the environmental noise interference, and improve the system of sensitivity to make the system runs stably have rural.

(3) can detect the different types of soft label (i.e. single-rate or dual-frequency mode)

4 can choose soft labels or hard tags test.

Standard environment (i.e. no interference environment) soft label top detection distance: 40 x 40mm soft standard highest detection distance of 1.8 M, hard label top detection distance for 2.5 M.

Answer 2:
If the mall to use soft tag circumstances, the general advice system standard installation distance for 0.9 ~ 1.1 M, If the bazaar only use hard label generally recommend that standard installation distance 1.1 ~ 1.6 meters.

5 what is single-rate mode? What is the dual-frequency mode?

Answer:

Single-rate mode: refers to the system equipment use just one frequency mode, namely can identify a frequency labels.

Double-frequency mode: refers to the system equipment simultaneously use two kinds of frequency mode, namely the system at the same time can identify two different frequency labels. (such as system at the same time can recognize 1.95 MHZ and 8.2 MHZ soft hard tag)

6, why has launched hard tag telepathy and closing tag induction hardened? When respectively startup soft and hard tag induction severally when what effect?

Answer:

With this feature is designed to make system can be more accurate, more quickly identify the different types of tags, and when the system and close soft and hard tag induction, can observe LED lights (noise level) to judgment system at the scene of the interference.

When the start tag induction, the system of soft soft tags, when only identify start-up hard tag, system identification tag, only hard when used at the same time, soft, hard tag, system can also identify soft and hard tags. System is mainly through the tag Q value to oerlooked.

Main effect is: put site near on soft, hard jamming signal narrowing, avoid label induction misstatement, equipment doesn't work properly.