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LLC14A1AX PDF预览

LLC14A1AX

更新时间: 2023-12-06 20:12:56
品牌 Logo 应用领域
力特 - LITTELFUSE /
页数 文件大小 规格书
2页 389K
描述
LLC14A1AX is a single-probe, open board conductive liquid level control with input voltage ac of 120 and a fixed time delay of 1 s.

LLC14A1AX 数据手册

 浏览型号LLC14A1AX的Datasheet PDF文件第2页 
Protection Relays  
Pump Controls and Liquid Level Controls  
LLC1 SERIES  
Open Board Liquid Level Controls  
Description  
The LLC1 Series is a single probe conductive liquid level control  
designed for OEM equipment and commercial appliances. This  
unit may be ordered with fixed fill or fixed drain operation. A  
time delay (1-60s) prevents rapid cycling of the output relay.  
On adjustable units, the sensitivity adjustment allows accurate  
level sensing while ignoring foaming agents and floating  
debris. Isolated AC voltage is provided at the probe to prevent  
electrolysis. A trickle current of less than 1mA determines the  
presence or absence of liquid between the probe and common.  
The LLC1 Series printed circuit board is conformal coated to  
resist moisture and corrosion.  
Operation  
Drain (Pump-Down Mode): When the liquid level rises and  
touches the probe, a fixed time delay begins. This time delay  
prevents rapid cycling of the output relay and its load. At the  
end of the time delay, the output relay energizes and remains  
energized until the liquid level falls below the probe. The output  
relay then de-energizes and remains de-energized until the liquid  
again touches the probe.  
Wiring Diagram  
P = Probe  
L = Load  
V = Voltage  
∆S = Sensitivity  
Adjustment  
Fill (Pump-Up Mode): When the liquid level falls below the  
probe, a fixed time delay begins. This time delay prevents rapid  
cycling of the output relay and its load. At the end of the time  
delay, the output relay energizes and remains energized until  
the liquid level rises and touches the probe. The output relay  
then de-energizes and remains de-energized until the liquid level  
again falls below the probe.  
C
Contacts A, B & C  
are isolated.  
Metal Tank or use  
additional Probe  
Connect common to  
conductive tank or  
an additional probe  
as required.  
Features & Benefits  
FEATURES  
BENEFITS  
L1 N/L2  
Isolated AC voltage  
on probe  
Prevents scale buildup on the probe  
Cost effective design for OEM equipment and  
commercial appliances  
Open PCB design  
Conformally coated PCB  
Sensitivity adjustment  
Protects against moisture and corrosion  
Provides accurate level sensing while ignoring foam  
or floating debris  
Ordering Information  
INPUT  
TIME  
SENSE  
MODEL  
OPERATION  
MOUNTING  
VOLTAGE  
DELAY  
RESISTANCE  
Adjustable  
Adjustable  
Adjustable  
Adjustable  
Adjustable  
Adjustable  
Adjustable  
120VAC  
120VAC  
120VAC  
120VAC  
120VAC  
230VAC  
230VAC  
LLC14A1AX  
LLC14A5AX  
LLC14B15AX  
LLC14B1AX  
LLC14B60AX  
LLC16A25AX  
LLC16A3AX  
Drain  
Drain  
Fill  
1s  
0.5 in nylon standoffs (3)  
0.5 in nylon standoffs (3)  
0.5 in nylon standoffs (3)  
0.5 in nylon standoffs (3)  
0.5 in nylon standoffs (3)  
0.5 in nylon standoffs (3)  
0.5 in nylon standoffs (3)  
5s  
15s  
1s  
Fill  
Fill  
60s  
25s  
3s  
Drain  
Drain  
If you don’t find the part you need, call us for a custom product 800-843-8848  
© 2016 Littelfuse Protection Relays & Controls  
www.littelfuse.com/llc1  
Rev: 1-A-062716  

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