2M Technology 2MTHWT-HMD Посібник користувача - Сторінка 13
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Ringer volume set and press "SEL" is shown in Fig. 25 (or Fig. 46), enter the alarm time settings, 0.5S ~ 4.0S adjustable
alarm time, press "ADJ" to change the time, in increments of 0.5S, It will return 0.5S after more than 4s.
4. Set parameter saving
The parameter will become effective immediately after setting, however it is only available for current operation. When the
machine is shutdown and started again, the operation of the system will enabled based upon the last saved parameter.
Only those set parameter saved in the system are always effective.
Method for saving set parameters:
(see Fig. 25 or Fig.46), the parameter will be saved in the system. After the parameter is saved, the main interface will
be shown automatically (see Fig. 1). The number of passed persons and alarms will be reset.
IV. SYSTEM PARAMETER SETTING
1. Manual frequency setting
Input the password of "1264" and press "ENT" to show Fig. 35. Press "SEL" to enter the manual frequency setting menu,
see Fig. 36.
Press "ADJ" to select the frequency digit. The selected digit can be changed by pressing "ENT".
The manual frequency setting, taking lHz as one stepping, is allowed within 7000 ~ 8999Hz. When the frequency is about
8000Hz, the system performs the best and the power consumption is the lowest.
Note: When the frequency is about 8000Hz, the system performs the best. Generally, the frequency shall be kept
within 7350 ~ 8700Hz.
2. Automatic frequency setting after startup
"Automatic frequency setting after startup": The system will check the frequencies of ambient machines automatically in
order to set different frequency. When more than one WTMDs is used at the same time, the frequency of each one can be
staggered automatically for fear of repeat and high mutual interference during the operation.
Setting method:
Enter the interface as shown in Fig. 37. The automatic frequency setting after startup will be unavail-
able when the last digit of the lower row is "O" and available when "l "; The "ADJ" can be used for switching the last digit
between "O" and "l ". The final setting shall be saved in the system.
Note: When more than one WTMDs is to be used at the same time, just shut down them after the automatic fre-
quency setting finishes and then start them in order. The frequency setting of one machine must be finished
before the next one is started; Different frequencies shall match with different ring tones.
3. Filtering mode setting
Enter the password "1264" and press Key "ENT", as shown in Fig. 35; press key "SEL" for three times to enter into the fil-
tering mode setting menu, as shown in Fig. 38, and the filtering mode is shown in the last digit at lower row, with the corre-
sponding relationship being shown as below:
0 – Band-pass filtering:
1 – High pass filtering:
2 – Low pass filtering:
3 – No filtering:
The Key "ADJ" makes the filtering mode switch circularly under four kinds of modes.
Notes:
filtering mode can filter out interference and reduce false alarm. However, after filtering, there will be signal delay
and alarm delay. Band-pass filtering can achieve the best result, but it also lead to the longest time delay. This function de-
After a parameter is set, press "ENT" in the interface showing "d001"
it can filter out interference by high frequency and low frequency.
it can filter out low-frequency drift interference by.
it can filter out the high-frequency interference.
original data is not subject to filtering treatment.
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