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Summary of Contents for SIM LV625
- Page 1 USER MANUAL LV625 Portable Ultrasonic Level meter...
- Page 2 Index General Description Operation Operating Mode Basic Settings Quick Start Mode Customizable Parameters Units Temp & Type (Temperature & Operating Mode) Gain Mode (Variable or Fixed Sensitivity) Deep Ignore (Dead Zone) Time and Date Setting Enter Setup mode Change the Parameters Battery Replacement Measurement Problems FAQs...
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Page 3: General Description
General Description The portable ultrasonic level meter works by injecting sound waves along the well casing. The waves reflected from the water surface are then analyzed to determine the water level and the result is displayed on the led screen. All you need is an access door, down into the well, 5/8 inches (16 mm) or larger in diameter. -
Page 4: Operation
Operation Operating Mode There are two operation modes: NORMAL and DEEP . Choose the most suitable modality according to the depth of the well. By default, Quick Start mode is set, which allows basic water level measurements. For more complex measurements, it is possible to modify some of the predefined parameters (see Chapter 4 - Setting). - Page 5 Quick Start Mode Pressing the red POWER ON button will turn on the meter. In NORMAL mode, the meter will remain active for 3 seconds at 1 "ping" per second. In DEEP mode, it will remain active for 6 seconds at 1 "ping" every 2.75 seconds. The meter will remain on for approximately 20 seconds after a measurement cycle.
- Page 6 Customizable Parameters Units Metric (MT - °C) o English (FT - °F). Temp & Type (Temperature & Operating Mode) To improve accuracy, it is necessary to indicate the average temperature, which must be calculated taking into account the air temperature and the water temperature. To enter the correct temperature, use the table provided.
- Page 7 Setting Enter Setup Mode 1. With the control unit off, position the TEMP lever in one of the two possible positions. 2. Hold the TEMP lever in the chosen position and press the red POWER ON button. In this way we will enter the Setup mode. 3.
- Page 8 4. “Norm: Ignore 1st” (Dead zone for NORMAL mode) • Use the TEMP lever to vary the desired distance. • Press the POWER ON button to advance to the next setting. 5. “Deep: Ignore 1st” (Dead zone for DEEP mode) •...
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Page 9: Battery Replacement
Battery Replacement The battery voltage level is indicated by the icon in the lower right part of the display. The battery pack consists of 8 AA alkaline batteries. The batteries must be replaced when the battery icon appears empty instead of full. To replace the batteries, remove the cover on the bottom of the meter by unscrewing the 4 screws. - Page 10 Measurement Problems In older wells, the casing may be corroded or rough , causing high attenuation and unreliable water level readings. In this situation, the higher sensitivity DEEP mode will minimize the problem. However, to use this setting, the water level must be above 60 meters. An error in the measurement can occur if the well casing has discontinuities , causing an incorrect reflection of the sonic pulse.
- Page 11 FAQs Q Can the meter be used to measure wells that are not perfectly vertical? Yes, you can even measure the length of the spiral tube. Q Can the instrument be used in the presence of a submersible pump? Yes, you can use the meter on wells with submersible pumps. Q Can the meter be used with covered wells? Yes, our gauges can be used on wells with or without plugs.
- Page 12 Q How accurate is the measurement? 0.2% of reading. Q Does the diameter of the well affect the measurement? The instrument has been calibrated for wells from 25 to 250mm and it is not recommended to use it in very large wells. Q What hole is needed in a well with a lid? The hole needed is 16mm.
- Page 13 Warnings The meter is water resistant but is not completely waterproof. Do not immerse the meter in liquid or leave it exposed to rain or precipitation. If it gets wet, dry it immediately. If water has entered the instrument, open and dry the inside. Do not use the meter before it is completely dry.
- Page 14 NOTES...
- Page 15 NOTES...
- Page 16 Sim Strumenti S.n.c. Via Merendi 42 20010 CORNAREDO (MI) ITALY Tel: +39 02 9700 30 39 Fax: +39 02 9729 01 67 www.simstrumenti.com sim@simstrumenti.com...
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