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Liquid Leakage Sensor Amplifiers for Long-distance Wiring
![K7L-U[] / UD[]](../../../images/l_1819-13-118961-198x198.jpg)
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last update: April 01, 2016
| Ambient temperature | Operating: -10 to 55°C |
|---|---|
| Ambient humidity | Operating: 45% to 85% |
| Insulation resistance | 10 MΩ at 100 VDC between case and current-carrying parts |
| Dielectric strength | 1,000 VAC at 50/60 Hz for 1 min between case and current-carrying parts |
| Power consumption | 1 W max. |
| Response time | Operate: 800 ms max.
Release: 800 ms max. Startup time after power ON: 2 s max. |
| Weight | Approx. 14 g |
| Rated power
supply voltage |
12 to 24 VDC (Allowable voltage fluctuation range: 10 to 30 VDC) | |||
|---|---|---|---|---|
| Operate
resistance |
0 to 1 MΩ variable
Note: The adjuster (ADJUST) on the top of the Sensor Amplifier sets the resistance for detection within the setting range. It is factory-set to the upper limit. (Normally, the K7L can be used with the adjuster at this setting.) |
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| Disconnection
detection function * |
Detection signal: 10 VDC max., 200 ms
Detection time: 10 s max. Recovery: Operation is recovered by resetting the power supply. |
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| Release resistance | 105% min. of operate resistance | |||
| Output
configuration |
NPN open-collector transistor output with 100 mA at 30 VDC max. for both liquid leakage
detection and disconnection detection. Note: If the rightmost pin of the DIP switch on the side of the Sensor Amplifier is set to thedown position, the output turns ON when liquid is detected; if it is set to the up position, the output turns OFF when liquid is detected. |
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| Vibration resistance | 10 to 150 Hz, 0.1-mm single amplitude with 15-m/s2 acceleration for 8 minutes
10 times each in X, Y, and Z directions |
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| Shock resistance | 150 m/s2 3 times each in six directions on 3 axes | |||
| Wiring distance | Wiring cable, Sensing Band: Total: 400 m max.
Note: These values are possible on the condition that a completely insulated 3-conductor VCT cable with a thickness of 0.75 mm2 and a dielectric strength of 600 V is used together with the Liquid Sensing Band specified by OMRON. (A 0.2-mm2 cable can also be used.) |
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| Accessories | Product Name | Terminal Block | Screwdriver for ADJUST | Terminator |
| Model | F03-20 | --- | F03-20T | |
| K7L-U/UB | 1 | 1 | --- | |
| K7L-UD/UDB | 1 | 1 | 1 | |
* For the K7L-UD.
last update: April 01, 2016
Item list of K7L-U[] / UD[]
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