Bottom Loading Oil Controller, Overfill Detection For Oil, Bottom Loading Grounding Controller
1 System introduction
ET - SLC-B overfill detection-bottom loading and grounding controller is designed for bottom loading oil system , can effectively prevent liquid overflow and ensure the grounding resistance conforms to the safety standards of instrumentation, system for oil storage and transportation of chemical products.
Ex-mark is Exd[ia]IIBT4.
2 Working principle and System composition
2.1 Working principle
ET - SLC-B overfill detection-bottom loading and grounding controller
is designed for the bottom loading oil system . when the liquid level exceeds alarm position or ground loop in excess of the prescribed value, the system output sound and light alarm signal for field personnel understand the system working status in time, at the same time the output relay switch control signal.
3 the product characteristics
1. The system USES digital circuit design, stable performance, strong anti-interference ability;
2. To connect 8 overfill sensor of meeting API Rp1004 and 1 grounding bolt;
3. Compatible with foreign Scully, Civacon, Liquip, Dixon brands such as overfill sensor;
4. Plug meet API rp1004 standard design, compatible with socket of meet API Rp1004
5.Ensure grouding resistance < 55 Ω
6.Provide sound and light alarm signal, in a timely manner to understand system working state
7.Switch signal output interface capacity 10A, 30 VDC or 10 A, 250 VAC.
4 System parameters
1. Working voltage: 220 VAC ± 10%
2. The working current: < 20 mA
3. The working temperature: - 40 ℃ ~ 60 ℃
4. Response time: < 0.5 s
5. Grounding resistance: < 55 Ω
6. Protection grade: Ip65
7. Ex-mark : Exd[ia] IIBT4
8. Warning: sound and light alarm
9. The input signal: in accordance with API RP1004, EN13922 standards
10. The output signal: relay output, normally open normally closed is optional Interface capacity 10A, 30 VDC or 10A, 250 VAC
11 .6 electrical contacts of plug and socket connection, compatible with foreign Scully, Civacon, Liquip, Dixon brands
12. The essence safety output parameters:
Uo = 16.5 V, Io =874 mA Po = 3.6 W
Co = 1.8 uF Lo = 0.09 mH
appendix 1: ET -SLC-B controller circuit board schematic.
1.The technical requirements
A. 1 ~ 6terminals for the relay output signal, pay attention to the normally open normally closed choice;
B. 7 ~ 8 terminals for power input, the squared cable > 2 x 1 mm, outside diameter between Φ 8 mm ~ Φ12 mm ;
C. 9 terminal for grounding side, connected to the controller shell, ensure reliable grounding; D. 10 ~ 13terminals by sound and light alarm, using squared cable > 4 x 0.5 mm, outside
diameter betweenΦ 8 mm ~ Φ12 mm.
A. 1 ~ 3 terminal for the signal output terminal of grounding;
B. 4 ~ 6 terminal for the signal output terminal of overfill;
C: 10 ~ 13 terminals for sound and light alarm;
D. 14 ~ 18 terminals for clamp, grounding line, return plate. E. 19 ~ 25 terminals for return socket , grounding bolt,
5.1.2 The electrical connection diagram
appendix 2: ET - SLC-B controller electrical connection diagram.
5.2 Machinery installation
appendix 3: ET - SLC-B controller installation diagram.
appendix 4: main controller installation size chart.
appendix 5: ET - LS-R ruturn socket installation size chart.
appendix 6: ET - RP ruturn plate installation size chart.
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