10
Section 3: System Operation
Turn the ET WLM on with the ON/SENSITIVITY switch. If the buzzer makes a
loud signal and a red light is visible, the battery is adequate for normal operation.
Lower the probe down the well to the water surface. The light and buzzer will
activate. At this point, adjust the probe dial by rotating it counter-clockwise until
the light and buzzer turn off.
With the probe still in contact with the water, adjust the probe sensitivity dial
clockwise until the light and buzzer barely activate. In this setting, the probe will
detect the water level and avoid false triggering.
Water level measurements can now be taken from the top of the casing or any
reference point.
The ET WLM should be stored with the ON/SENSITIVITY switch in the OFF
position. To turn the unit off, rotate the switch fully counter-clockwise until the
switch clicks. If the ET WLM is not used and is stored for longer than three (3)
months, remove the battery to prevent battery leakage, which can cause internal
damage.
To avoid damage to the tape and strain relief, do not over tighten
the reel with the probe in storage position.
This unit is not rated for use with hydrocarbons or flammable liquids.
If measuring depth to fluid of wells containing hydrocarbons, use
Geotech
’s line of interface probe products.
Operation of Optional Draw Down Control
1. Lower the probe to desired depth of maximum allowable draw down
with the unit in standard ET WLM mode (switch at
“Right”) – see Figure
1-3.
2. Move the mode switch to the
“Left “, for Draw Down mode.
3. Connect the ET WLM to a controller; such as the Geotech GeoControl
Pro or Geo Controller, which is equipped with a Draw Down feature, as
shown in Figure 1-3.
4. Operate your controller in accordance with the controller
’s operation
manual. The ET WLM will stop the controller when the water level dips
below it. It will allow the controller to re-start when the water level rises
and makes contact with the probe
Содержание ET WLM
Страница 1: ...Rev 04 22 2016 Part 12050062 ET Water Level Meter Installation and Operation Manual...
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Страница 7: ...5 Figure 1 2 Figure 1 3...
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Страница 11: ...9 Figure 2 2 Fitting Optional Tape Weight Figure 2 3 Tightening Optional Tape Weight...
Страница 17: ...15 Section 7 System Schematic Figure 7 1 Water Level Meter front view...
Страница 18: ...16 Figure 7 2 Water Level Meter side view...
