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| Add Time： | 2016-08-21 09:27:39 |
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Product description:
I. overview:
The products in accordance with GB3836.1— 2000 "electrical apparatus for explosive gas atmospheres - part first: General requirements", GB3836.4— 2000 "electrical apparatus for explosive gas atmospheres - Part fourth: intrinsic safety type “ i”" the relevant standards of production, explosion-proof mark [Exib] II CT6, designated by the national quality inspection agency inspection made explosion-proof certificate.
SWP8047-EX detection terminal isolated batviers provides isolation DC power supply two-wire transmitter from the security zone to the danger zone, and to transfer two wire transmitter 4 ~ 20mA DC signal is converted to the isolation of 1 ~ 5VDC/4 ~ 20mA DC output signal.
Two, the main technical performance:
Explosion proof mark: [Exib] II CT6
Explosion-proof parameter: Uo≤ 35V, Io≤ 35mA, C 0.045uF, L o≤ o≤ 2mH,
P o≤ 0.3W Um=250VAC/DC
Input: 7 + 8 danger zone - 4 ~ 20mADC
Distribution voltage: 18.5~28.5VDC
Supply voltage: 24VDC± 10%
Output: 4 + 5 security zone - 4 ~ 20ADC or 1 + 2 - 1 ~ 5V.DC,
Output load: 750Ω internal 250Ω
Accuracy: ± 0.2%
Power consumption: 1.5W
Ambient temperature: +5 C ~ 40 C
Relative humidity: 35% ~ 85%RH
Storage temperature: -40 C ~ 85 C
Weight: About 150g
Installation site: the surrounding air should not contain chromium, nickel, silver coating corrosive medium.
Suitable for field equipment: two wire pressure transmitter and two-wire temperature transmitter.
Three, installation notes:
1 isolation safety fence shall be installed in non hazardous areas.
2 insulated gate to the site (dangerous place) soft copper wire cross-sectional area must be greater than 0.5mm2.
3 the insulation strength of the connecting wire shall be greater than 500V.
4 isolated batviers end (blue mark) intrinsically safe and non safe terminal wiring, not wrong and confused. This wire should use blue as safe marker. Intrinsically safe and non intrinsically safe wire wire should be separated by their respective laying, protective sleeve in line sink groove. Intrinsically safe side safety barrier, mixed with other power supply is not allowed, including other intrinsically safe circuit.
5 safety barrier and an instrument of intrinsically safe explosion-proof explosion-proof system, must be approved by the inspection organizations designated by the state inspection. SWP8000-EX series of isolated safety barrier by the national explosion-proof electrical supervision and inspection center, given the Co Lo parameter is compared with ∏ C (hydrogen level) the maximum allowable value for ∏ the B level environmental parameters multiplied by 3 for ∏ the environment a parameter multiplied by 8. When the transmission line adopts different specifications of the cable, the cable parameters of the cable should be highly valued and shall not exceed the specified value.
6 when the isolation safety gate is used for debugging, it is necessary to pay attention to the type, the polarity of the power supply, the voltage level and the label on the terminal of the isolated safety fence.
7 prohibit the use of the ohmmeter to test the isolation between the safety gate terminal insulation. To check the insulation of the system circuit, disconnect all isolated safety grid connections, otherwise it will cause damage to the internal components.
8 where the instrument is connected with the isolation safety gate, the explosion proof test shall be carried out for the explosion-proof department.
9 if the internal safety of the isolated safety barrier is damaged, it should be repaired or replaced. User maintenance, should be in accordance with the considerations relating to specific methods, please follow the maintenance section (the range of essential security instruments maintenance is only limited to the outer, maintenance and manufacturing plant should consult). After maintenance can be put into operation.
10 safety barrier installation, use and maintenance should strictly comply with the.GB 3836.15— 2000 "electrical apparatus for explosive gas atmospheres - Part fifteenth: electrical installations in hazardous areas (other than mines)" of the relevant provisions.
11 obtain explosion-proof certification products, are not allowed to change the explosion-proof performance of components or structures
