Waiting For Shot To Be Fired - Echometer Model-H Operating Manual

The signal strength indicator will change from green to yellow when the background noise in the well exceeds
1mV and from yellow to red when the noise exceeds 10 mV.
A red indicator suggests that a higher level of differential pressure should be used to generate the shot.
10 – Press the "Start" button after adjusting the gas gun pressure if necessary.

Waiting for Shot to be Fired

The display indicates that the software is monitoring the microphone signal and is ready to detect the shot when
it is fired. Shot detection occurs when the microphone voltage exceeds the preset threshold voltage. The user
has 10 minutes to generate the acoustic pulse by actuating the gas gun trigger or control valve. When the
allotted time expires the screen will change automatically to the previous screen (Background Noise Display).
In noisy wells it may be advantageous to Toggle ON/OFF a Low Pass filter to enhance the displayed data and
help the user observe the echo from the liquid level and/or other anomalies present in the well.
Echometer Company Phone: (940) 767-4334
Model – H Manual
5001 Ditto Lane Page 22 Fax: (940) 723-7507
Wichita Falls, Texas 76302, U.S.A. E-Mail: info@echometer.com