STULZ Leak Detection Systems
EL3001 Control Panel
Easy to install, complete monitoring system to detect early liquid leakage. Once leak is detected it responds within a few seconds and provides accurate leak location.
General Features
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Maximum accumulated length of sensing cable
200m (Note: 192m for 4-20mA interface)
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Maximum accumulated length of jumper cable
300m
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Precision of leak location
+/- 1 metre or +/- 0.5%
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Display
LCD with backlight. 2 x 14 English characters
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Audible alarm
90dB max. buzzer with silencing button
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System reset
One single button for testing/resetting the system (hold down buzzer button for 6 seconds)
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Failsafe operation
Ability to operate in loop back operation and to detect liquid leakage during cable break
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Time to detect leak/cable break
4 seconds typically
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Liquid leak detection capability
Typically 20mm in length of liquid (e.g. tap water) in full contact with sensing cable. Leak sensitivity is adjustable.
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Multi-leak detection and location capability
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Modbus TCP optional
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Remote supervision by RS485 Modbus optional
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Analog output 4-20mA interface optional
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ASIC based digital location principle (patent pending) with inherent temperature stability, zero drift and very low power consumption
Environmental Ratings
| Operating temperature | -10°C - 50°C (indoor installation only) |
| Storage Temperature | -20°C - 70°C |
| Humidity | 5% to 95% non-condensing |
Power Requirements
| Power Supply | 230 +/- 15% VAC, 50/60 Hz |
| Optional Input | 115 VAC/ 50-60 Hz or 12 to 30 VAC/DC power input |
| Power Consumption | 3.5 VA / 3 W maximum |
Power Relays Switching Characteristics
| Cable break/power failure by contact (1 relay) | Operation - SPDT Switching current - 3A at 250 VAC, 5A at 30 VDC |
| Liquid leakage dry contact (2 relays) | Operation - SPDT Switching current - 5A at 250 VAC, 7A at 30 VDC |
Serial Communication Interface
| Physical support | RS485-two wire, ESD and surge protected as per IEC 61000-4-5 |
| Protocol | Modbus |
| Optional | Modbus/TCP output with 10/100Mbs Ethernet and RJ-45 connector |
Analog Output
| Physical support | 4 to 20 mA opto-isolated interface |
Voltage range | 9 to 36 VDC overvoltage protected |
| Additional information | Two-wire opto-isolated analog current interface with galvanic separation of 2.5kV |
| Nominal current | Normal - 4 mA |
Compliance to International Standards
| EMC emission | IEC61000-6-3(2001) Electromagnetic compatibility Generic emission standard for residential, commercial and light industrial environment |
| EMC immunity | IEC61000-6-1(2001) Electromagnetic compatibility Generic immunity standard for residential, commercial and light industrial environment |
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