Maintenance - MEDC DB1 Technisches Handbuch

Tones
Tones
For all versions, a 5-way DIL switch selects the tone required. The standard settings are shown in table 1 be-
For all versions, a 5-way DIL switch selects the tone required. The standard settings are shown in table 1
low:
below:
Table 1
Table 1
TONE TONE FREQ/DESCRIPTION
No.
1 Alt Tones 800/970 Hz at 1/4 sec
2 Sweeping 800/970 Hz at 7 Hz
3 Sweeping 800/970 Hz at 1 Hz
4
5 Sweeping 2400-2850 Hz at 7 Hz
6 Sweeping 2400-2850 Hz at 1 Hz
7
8 Sweep 1200-500 Hz at 1 Hz
9 Alt Tones 2400/2850 Hz at 2 Hz
10 Int Tone of 970 Hz at 1 Hz
11 Alt Tones 800/970 Hz at 7/8 Hz
12 Int Tone at 2850 Hz at 1Hz
13 970 Hz at 1/4 sec on 1 sec off
14
15 554 Hz for 0.1S/440 Hz for 0.4S
16 Int 660 Hz 150 mS on 150 mS off
17 Int 660 Hz 1.8 sec on 1.8 sec off
18 Int 660 Hz 6.5 sec on 13 sec off
19
20 Alt 554/440 Hz at 1 Hz
21
22 Int 2850 Hz 150 mS on 100 mS off
23 Sweep 800-970 Hz at 50 Hz
24 Sweep 2400 -2850 Hz at 50 Hz
25 3x970 Hz pulses 0.5 off, 1.5 off
26 3x2850 Hz pulses 0.5on/0.5off, 1.5 off
27 Int 3100 Hz 0.32s on/0.68s off
28 Spare / Customer special tone
29 Spare / Customer special tone
30 Spare / Customer special tone
31 Spare / Customer special tone
32 Spare / Customer special tone

4.0 MAINTENANCE

During the working life of the unit, it should require little or no maintenance. However, if abnormal or unusual
environmental conditions occur due to plant damage or accident etc., then visual inspection is recommended.
If the unit requires cleaning, then only clean exterior with a damp cloth to avoid electro-static charge build up.
If a unit fault should occur, then the unit can be repaired by MEDC or by an authorised repairer of Ex equipment.
All parts of the unit are replaceable.
If you acquired a significant quantity of units, then it is recommended that spares are also made available. Please
discuss your requirements with the Technical Sales Engineers at MEDC.
02/11
Continuous at 2850 Hz
Slow Whoop
Continuous at 970 Hz
Continuous 660 Hz
Int 660 Hz at 7/8 Hz
SWITCH
SETTING TONE DESCRIPTION
12345
11111
11110 Fast Sweep (LF)
11101 Medium Sweep (LF)
11100
11011 Fast Sweep
11010
11001 Slow Whoop
11000 Din Tone
10111
10110 Back-up Alarm (LF)
10101
10100 Back-up Alarm (HF)
10011
10010
10001 French Fire Sound
10000 Swedish Fire Alarm
01111 Swedish Fire Alarm
01110 Swedish Fire Alarm
01101 Swedish Fire Alarm
01100 Swedish Fire Alarm
01011 Swedish Fire Alarm
01010 Pelican Crossing
01001 Low Freq. Buzz
01000 High Freq. Buzz
00111
00110
00101
00100
00011
00010
00001
00000
Nominal SPL
(dB(A) @ 1M)
114
114
114
109
114
114
115
115
111
114
114
109
114
114
101
106
106
104
106
100
106
109
113
112
113
109
110
© Cooper MEDC 2010