Receiver Technical Instruction
main board is worked by digital chip and single chip. The equipment is debugging-free type, its operation is simple, and its anti-jamming function is far more superior than analog line main board.
1. The 3 green LED DS1, DS2 and DS3 are to reflect the environmental disturbance. When DS1 is twinkling but DS2 and DS3 without light, it means that the environment is acting certain disturbance, the equipment can be used normally, but the test rate may reduce 30% at the most; if DS1 is lighting continuously, no matter DS2 and DS3 are in what status, it means that the installation place is seriously disturbed, it needs to find the origin of disturbance and eliminate it, or change the installation place or installation scenario, etc.
2. Adjust the VR4 clockwise can improve the sensitivity of test, now the green LED DS1, DS2, DS3 may twinkle; static adjustment can meet the required sensitivity of tag inspection, if all green LED DS1, DS2 and DS3 not twinkling (lighting), it means that it is in best status.
3. Modulation frequency self-adapting
If modulation frequency on the emission board has been changed (stagger frequency), R3200 receiver does not need adjustment.
4. Sound/light alarm device
If JP2 setting is 1&2 (factory setting), sound and light alarms will act at the same time and last for 2 seconds; if JP2 setting is 2&3, sound and light alarms will act at the same time and last for 2 seconds, then the sound alarm stops, but light alarm continues to twinkle for 3 seconds.
5. Installation distance and label collocation
If installation distance is 1-1.2 M, both soft label and hard label can be used; JP1 setting on 1&2 connection.
If installation distance is
1.2-1.6 M, it is suggested to use hard label only; JP1 setting on 2&3.
6. Main parameters
Input DC voltage
24±VDC
Guarding status
250mA
Alarming status
<300mA
Insurance
250V,1A（delay type）
Label test speed
greater than 2M/second
7. Main test point
A.
TP1 point—Radio frequency (RF) receiving amplitude
If the installation distance is <1.2 M, JP1 setting on 1&2 (automatic status), TP1 point radio frequency receiving amplitude is 500±50mVp—p.
If the installation distance is >1.2M and <1.6M, JP1 setting on 2&3 connection (manual status), TP1 point radio frequency receiving amplitude is 300±50mVp—p; the installation requirements can be met by adjusting VR2.
B. TP4 point—the amplitude of static noise (A) is 400±50 mVp—p; adjust VR4 can meet the requirement.
C. TP5 point—the amplitude of static noise (B) is 100±10 mVp—p
Transmitter Technical Instruction
一. Main technical parameters:
Input DC voltage
24±VDC
InputDCcurrent
<300mADC
Insurance
250V,1A（delay type）
Center frequency
8.2±0.05MHz
Scan frequency deviation
±500KHz
Modulation frequency
150, 160, 170, 180Hz
二. Setting and debugging of transmitter
1、There are 4 routes of modulation signals of 150, 160, 170, 180Hz on the panel of transmitter, which can be selected for using, especially when EAS equipment multi-point installation is difficult for online connection, so as to avoid the interference between EAS equipment. The 180Hz modulation signal has the priority for selection. If to change the modulation signal on the panel of transmitter, it needs to regulate the frequency sweep range at the same time, its method is as following item.
2、 Frequency sweep range
Put EAS tester vertically on the top of transmitter case, press EAS tester power switch, adjust R14 to let△f of EAS: displaying 1000±50KHz. If no EAS tester, use oscillograph for adjustment, firstly disconnects the P5 terminal antenna on transmitter panel, set the JP1 on 1&2. Connect the probe of oscillograph to the transmitter TP4, earthing to TP2, adjust the potentiometer R14, making the level at TP4 point is 0.7Vp-p sine wave, then re-connect the P5 terminal antenna properly, set JP1 on 2&3.
3、Radio frequency output amplitude: adjustment of radio frequency output amplitude relates to the testing gate distance. Connect the probe of oscillograph to TP7, earthing to TP8. Adjust R23 can change the amplitude of radio frequency output, and TP7 point is the sine wave of 40-70 Vp-p.
4)、Center frequency adjustment:Connect the probe of frequency recorder to TP6, earthing to TP8. Adjust R15 potentiometer to
8.2±0.05MHz.
三、Operating several transmitter without online connection (stagger frequency)
If there are 2 sets (or more) of testers being used on a same field, and their online connection is difficult, by changing the transmitter’s modulation frequency 150, 160, 170 and 180Hz, to let each transmitter have different modulation frequency, so as to avoid interference with each other.
For detailed application, it needs to consider the real situation on the field, and keep following principles:
1)
If there are 2 sets (or more) of testers being used without online connection, the distance between them shall be greater than 10M.
2)
Use online connection as soon as it is possible.
Plan view of transmitter panel and its main test points
发射机板Transmitter panel
R15: Frequency adjustment (8.2MHz)
R14: Transmitter power adjustment (frequency sweep range)
JP5 : these 4 jumpers are for stagger frequency purpose (factory setting is 180Hz)
System wiring sketch map
发射机板Transmitter panel
接收机板Receiver panel
天线接线座: Antenna linking box
电源Power supply
Note:
1. All connections must be firm without loose
2. Be careful of positive and negative poles when connecting the lines
3. After finishing connection, don’t insert into wrong place when plugging plastic plug.
4. VR4: Sensitivity adjustment
System (transmitter panel) online connection sketch map
主发射机板（A发射板）: Main transmitter panel (Transmitting Panel A)
副发射机板（B发射板）Auxiliary transmitter panel (Transmitting Panel B)
1.It must be double-core shielded wires used for online connection of the system
2. Both transmitting panel A and transmitting panel B can be served as main transmitting panel.
3. (As shown in above picture) if transmitting panel A is served as the main transmitting panel, connect the online wire onto P3 or P4 linking boxes on panel A, and onto P2 linking box on panel B (on the contrary, if transmitting panel B is served as the main transmitting panel, connect the online wire onto P3 or P4 linking boxes on panel B, and onto P2 linking box on panel A).
⒋After the wiring finished, the attention (figure above showed) on the host, vice-next two jumped the line establishment. Main launch board these two jump the line to establish to simultaneously dial (on main) the position. Vice-launch board two jump the line to establish to simultaneously dial (vice-under) the position.
说明：两支发射机和两支（或三支）接收机联机时，发射机就需要分出主发射机和副发射机，一般可任选一支发射机为主发射机，另外一支就只能为副发射，只要有两支或两支以上的发射机，就必需分出主副发射机，其中只能有一支为主发射，其它均为副发射机，主发射机与各副发射机之间必须连接同步线，具体方法是：主发射机保持出厂时的设置不动，各副发射机需要将主上、副下全部拨下的连接位置，同时将同步线一端接到主发射机的P3或P4信号输出端，另一端接到副发射机的P2信号输入端即可，接收机只需从发射机引入电源即可，工作时只需对灵敏度VR4电位器进行调节即可Description: two transmitters and two (or three) on-line receiver, the transmitter on the need to tell the main transmitters and transmitter, deputy general can be elected a transmitter-based transmitters, and a Can only be fired on the deputy, as long as two or two above the transmitter, on the necessary separation of the main transmitter of which there can be only one main launch, Deputy transmitters are other,With the main transmitter of the transmitter must be connected between the lines simultaneously, the specific method is: the main transmitter to maintain the factory settings fixed, the vice will be the main transmitter needs, the deputy under all connected for the position, at the same time, Synchronous line from one end of the main transmitter of the P3 or P4 signal output from the other side of the transmitter signal input to P2, the only receiver from the transmitter power can be introduced, when only the sensitivity VR4 Potentiometers to adjust.
Note NO.16
Description: Multi-two transmitters and transmitter at the on-line (nothing to do with the receiver) transmitter on the need for separation of the main transmitters and transmitter, deputy general can be elected a transmitter-based transmitters, and a Can only be fired on the deputy, as long as two or two above the transmitter, on the necessary separation of the main transmitter of which there can be only one main launch, all other vice transmitter, the main transmitter with the vice Synchronization between the transmitter must be connected lines,Specific method is: the main transmitter to maintain the factory settings fixed, the vice will be the main transmitter needs, the deputy under all connected for the position, while simultaneously receiving end of the main transmitter of the P3 or P4 signal output , Received the other side of the transmitter signal input to P2, then the next level of the deputy fired and so on from one of the deputy fired access, only receiver from the transmitter to the introduction of power, work Just the potential for VR4 sensitivity can be adjusted
