No. 1778281-3 Al (1/4) PRODUCT NAME TYPE NAME SPECIFICATIONS FOR Automatically small horizontal vibration detection switch D7A-2 issuen = GS Leneoler Font a1. 1999 CHECKED I Movi A\pri| ez. 1994 APROVED A pont lips.22 Of OMRON Corporation OMRONNo. 1778281-3 Al (2/4) 1. Mechanism parameter (1) Dimentions DRWG. No. 6421443-2 (2) Structure The contact of the built-in switch is mechanically opened and close by the vibration of the earthquake wave and it is the mechanism which takes out the signal. (3) Protection structure The switch is assumed to be IP40. (4) Set sensitivity 90-170 cm/s?(Gal) (Depend on the horizontal, continuous excitation method of 0.3, 0.5, and 0.7 cycle seconds). The above-mentioned sensitivity is a value by which it is set to operate by the earth quake waves (80-250 cm/s) . (5) Return mechanism Automatic return type (6) Installation level allowance value The installation level allowance value of the device which builds in this item while installed normal is assumed + 5 degrees or less. (7) Point of contact form Excite horizontally and turn ON in the range of set sensitivity. (8) The horizontal return time Time from the fixation of the device which builds in this item in the installation level allowance value to the normal return of the switch circuit is made within 20 seconds (However, 10 or more) (9) Circuit return time Time until the switch circuit returns original after the vibration stops is made within one minute. (10) Installation method Please install this item on the PCB(t=1. 6am). $440.4 (See right pictture. ) (11) Soldering Dip soldering: temperature 270T 4sec MAX. Soldering iron:temperature 350410 3sec MAX. 2. Electric specification (1) Electric ratings DC3V, 5 2 A~DC3V, ImA (2) Insulation resistance 100MQ or more (DC250VMegger). Between each terminal and earth terminal, between the same pole terminals. OMRONNo, 1778281-3 Al (3/4) (3) Dielectric strength AC250V, 50/60Hz | minute (between each terminal and earth between the same pole terminals). (4) Contact resistance Below initial 19 (terminal) 3. Mechanical specification (1) Transportation vibration Satisfy an initial value after exciting in half amplitude 2.5mm, the vibration frequency 10Hz, and the direction of three axes for 20 minutes or more. (2) Endurance impact Do not provide the obstacle as a function after impressing the acceleration of 980m/s* in the direction of three axes continuousness three times. (3) Transportation impact Satisfy an initial value after 1 corner, 3 earrises,3 surfaces and 7 times in total are dropped from the height of 60cm to a concrete side freely while packed. (4) Terminal strength Satisfy an initial value after impressing the load of 9.8N in the direction of compression for one minute. 4. Environmental performance (1) Use surroundings temperatures 30-70T (However, there must be neither be dewy nor freezing) (2) Use surroundings humidity. 25~95%RH. (3) Preservation surroundings temperatures -40-70T (However, there must be neither be dewy nor freezing) (4) Preservation surroundings humidity. 25-~~95%RH. 5. Business-proof Business (1) Salt-fog test Do not generate rust on corrosion and externals remarkable depending on the salt-fog test which builds in and provides for the meter of the gas to JIS Z 2371 after testing for 100 hours. insulation resistance:5MQor more. Dielectric strength:AC250V 1 minute(50/60Hz). However, measures under the dry state after the examination ends. (2) Wetprooting Do not provide the obstacle as a function after leaving for continuousness 96 hour in at- mosphere of 40+2 and 90-98%RH. Insulation resistance 10MQ or more. However, measures under the dry state after the examination ends. (3) Heat-humidity cycle Do not provide the obstacle as a function by 10 cycles at each heat-humidity of showing in Figure 2 of regulations of the check of the meter of the gas, Insulation resistance 10MQ or more. Moreover, do not expose the final cycle in the state of the low temperature. However, measures under the dry state after the examination ends. OMRONNo. 1778281-3 AL (4/4) (4) High temperature leaving Do not provide the obstacle as a function after leaving in the constant temperature tank of 70+2C for 96 hours. (5) Heatproof impact Do not provide the obstacle as a function after leaving for 10 cycles. (onecycle:-30C 30 minutes 70, 30 minutes). (6) Electrical service life Do not provide the obstacle as a function after 10,000 operations under the rated load of 3VDC ImA at a frequency of 10 to 20 operations per minute. Insulation resistance :10MQ or more. (7) Corrosive gas HeS5S+1ppm, 40C and 65%RH and leaving for 96 hours. The contact resistance after examining is assumed to be 1kQ or less. Note 1. Among the judgment standards, the meaning of Satisfy an initial value is as follows. @ Operation characteristic operates by 90-170 cm/s (0.3, 0.5, and 0.7 cycle seconds). @) Contact resistance Below 1Q. @ Insulation resistance 100MQ or more. @) Dielectric strength AC250V 50/60Hz 1 minute. Moreover, the meaning of Do not provide the obstacle as function is as follows. (@ Operation characteristic Operate by 80-250 cm/s (0.3, 0.5, and 0.7 cycle seconds). @ Contact resistance Below 100Q. @ Insulation resistance 100MQ or more. @) Dielectric strength AC250V 50/60Hz 1 minute. Note 2. Guaranteed term and range of guarantee (1) Guaranteed term It will be assumed one year after the commodity is delivered. (2) Range of guarantee Only when the breakdown is caused during the above-mentioned guaranteed term by the responsibility of our company, the breakdown part of this commodity is exchanged or is repaired. The guarantee jis a guarantee of the delivery goods units and pardon expenditure (work pay and damage amends, etc.) because of the exchange work, please. Note 3. The terms of validty of this specifications One year after the day of issue. if we have not had any orders for one year,we will make this specifications invalid. SYM DATE E/C CONTENTS SIGN | SYM DATE E/C CONTENTS SIGN A 1 | 990421 | changed to SI dUnites 8 byasde OMRONInspecting regulations for microcomputer Figure 2 +6 5C-- Tenperature 3 +24% * 2.5h Sy ga 2..5h a1. Shi! 15h! tS ah ES ES : : >: 14g0..5h : : 90%: a = jae oe cow nn Hunidity ; 7 Po - ian 0% = meee Re ee et te ee ee tt ee : > L cycle 24h y: OMRON20+0. 1 1+0. 1 MAX 22.5 | | | pe o 4 o i t et 19.6 "i fhe - : 2+0. 1 | = 7) 19. 64 "| + ns 5 mT m ea a O i A 3 : z | tH | ri} 6} Ud t= | - Ll |_| Glo | oi ry MATERIAL SCA re 2 4 TYPE D7A-2 TOLERANGES DESIGNED | CHECKED |APPROVED 3RD OUTLINE DRAWING PUNE tone FH | dunes 9 ANGLE speciien | re 99 on. rf 18 HEE 66 421443-2 A meta | O . ' 5 NO. SYM| DATE |E/C. CONTENTS| E/C_NO. sion | 10-4 Mow. Aad] DESIGNED FOR si Reerne omRON _