Liquid Leakage Sensor Amplifiers for Long-distance Wiring
last update: April 3, 2017
Ambient temperature | Operating: -10 to 55°C |
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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) | |||
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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 |
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 the down 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/UDP/UDPB | 1 | 1 | 1 |
* For the K7L-UD[][].
last update: April 3, 2017