Geotech ET Portable Water Level Meter Manual

Keck
Water Level Meter
Installation and Operation Manual
Rev. 4 9/8/03 Part #12050062
Table of Contents
CHAPTER 1: SYSTEM DESCRIPTION............................................................... 5
FUNCTION AND THEORY ....................................................................................... 5
SYSTEM COMPONENTS ........................................................................................ 6
CHAPTER 2: SYSTEM INSTALLATION............................................................. 8
CHAPTER 3: SYSTEM OPERATION.................................................................. 9
CHAPTER 4: SYSTEM MAINTENANCE........................................................... 10
CHAPTER 5: SYSTEM TROUBLESHOOTING................................................. 11
CHAPTER 6: SYSTEM SPECIFICATIONS ....................................................... 13
CHAPTER 7: SYSTEM SCHEMATIC................................................................ 15
CHAPTER 8: REPLACEMENT PARTS LIST.................................................... 16
THE WARRANTY......................................ERROR! BOOKMARK NOT DEFINED.
EQUIPMENT RETURN POLICY...............ERROR! BOOKMARK NOT DEFINED.
EQUIPMENT DECONTAMINATION.........ERROR! BOOKMARK NOT DEFINED.
DOCUMENTATION CONVENTIONS
This uses the following conventions to present information:
WARNING
CAUTION
NOTE
An exclamation point icon indicates a WARNING
of a situation or condition that could lead to
personal injury or death. You should not proceed
until you read and thoroughly understand the
WARNING message.
A raised hand icon indicates CAUTION information
that relates to a situation or condition that could lead
to equipment malfunction or damage. You should not
proceed until you read and thoroughly understand the
CAUTION message.
A note icon indicates NOTE information. Notes
provide additional or supplementary information
about an activity or concept.
Chapter 1: System Description
Function and Theory
The Keck Water Level Meter is a portable instrument used to accurately
measure water levels in monitoring wells. The sensor consists of a
stainless steel and Teflon® probe attached to a reel-mounted,
polyethylene-coated engineer’s tape. The engineer's tape comes in
standard or metric graduations, and is accurate to 1/100th of a foot, or 1
millimeter.
The sensor relies on fluid conductivity to determine the presence of water.
An audible signal and visible green light activate when the instrument
contacts water. It features adjustable sensitivity, used to prevent false
triggering.
To avoid damage to tape and strain relief, do not over
tighten reel with probe in storage position.
System Components
Carrying Handle
Frame
Frame
Faceplate
Faceplate
Reel Handle
Probe Holder
Figure 1
Figure 2
Tape Assembly
Power On/
Sensitivity Switch
Visible Signal
Audible Signal
Battery Tray
Figure 3
Engineer’s
5/8” Stainless Steel
Probe
Figure 4
Chapter 2: System Installation
The Keck Water Level Meter frame has a metal loop, the “hanger”, which
may be used to hang the probe assembly on the well casing. If the Water
Level Meter frame will not hang on well head, use the tape guard to
prevent damage to the tape.
Figure 5 – Reel Frame
Chapter 3: System Operation
1) Turn the instrument 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.
2) 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.
3) With the probe still in contact with the water, adjust the sensitivity dial
clockwise until the light and buzzer barely activate. In this setting, the
probe will detect the water level and avoid false triggering.
4) Water level measurements can now be taken from the top of the
casing or any reference point.
5) Water Level Meter should be stored with the On/Sensitivity switch in
the OFF position. To turn unit off, rotate switch fully counterclockwise
until switch clicks.
6) If Water Level Meter will not be used and stored for longer then three
(3) months, remove the battery to prevent battery leakage from
causing damage.
To avoid damage to tape and strain relief, do not over
tighten reel with probe in storage position.
Chapter 4: System Maintenance
Battery Replacement
Replace the battery when the audible and visible signals become weak or
the unit does not operate.
Step 1: Gently remove the battery tray.
Step 2: Remove the old battery and replace it with a new one.
Be aware of the polarity (+, -) of the battery when
placing the new battery in the tray.
Cleaning
The Water Level Meter can be cleaned with any detergent such as
trisodium phosphate (TSP), Alconox or Liquinox. If other detergents are
used, take care to select detergents that are compatible with Teflon®,
polypropylene, and stainless steel. The reel should not be submerged in
any liquid, but may be cleaned with a damp cloth.
If the probe becomes covered with silt or mud, it may be cleaned with
detergent and a soft bristle brush.
Chapter 5: System Troubleshooting
Problem:
No signal (audible or visible) when unit is turned on.
Solutions:
1) The battery is discharged.
• Check or change battery (see page 8).
2) The circuit is malfunctioning.
• Consult the manufacturer.
Problem:
No indication of water.
Solutions:
1) The conductive contact is dirty.
• Clean the contact (see page 8).
2) There is an open connection in the tape.
• Replace tape and/or probe. **
3) The circuit is malfunctioning.
• Consult the manufacturer.
Problem:
The signal (audible or visible) is intermittent.
Solutions:
1) There is an open connection in the tape.
• Replace tape and/or probe. **
2) There is a loose connection in the circuit or the probe.
• Repair the connection. **
Problem:
The signal (audible or visible) is continuous when not in
water.
Solutions:
1) The conductive contact is dirty (causing bridging).
• Clean the contact (see page 8).
2) There is a short in the tape and/or probe.
• Replace tape and/or probe. **
3) The circuit is malfunctioning.
• Consult the manufacturer.
**For Technical Assistance, Call Geotech Environmental Equipment at
1-800-833-7958 or 1-800-275-5325.
Chapter 6: System Specifications
5/8” Probe
Material:
Weight:
Diameter:
Length:
Minimum Conductivity Threshold
(detects water at):
Stainless Steel & Teflon®
4.68 oz
132.54 g
⅝ inch
1.59 cm
7 ¾ inches
19.69 cm
10µS
3/8” Probe (optional)
Material:
Weight:
Diameter:
Length:
Minimum Conductivity Threshold
(detects water at):
Stainless Steel & Teflon®
1.06 oz
30.5 g
⅜ inch
.9525 cm
6 inches
15.24 cm
10µS
Tape
Material:
Length/Weight:
Polyethylene coated stainless
100 foot / 30 meters = 9 lbs
200 foot / 60 meters = 11 lbs
300 foot / 100 meters = 14 lbs
Accuracy:
100th of a foot/100’
Per Federal Specification:
GGG-T-106E
Reel/Frame
Material:
Size:
Polypropylene & Aluminum
13” H x 11” W x 7” D
Unit
Battery:
Battery life:
Continuously detecting:
On but not detecting:
Output tone:
Operating temperature range:
Storage temperature range:
Response time:
9 volt alkaline
8 hours
>1 year
5 kHz
32 – 140 °F
-40 – 158 °F
<10 milliseconds
(0 – 60 °C)
(-40 – 70 °C)
Chapter 7: System Schematic
Figure 6 - Front and side view
Chapter 8: Replacement Parts List
The Warranty
For a period of one (1) year from date of first sale, product is warranted to
be free from defects in materials and workmanship. Geotech agrees to
repair or replace, at Geotech’s option, the portion proving defective, or at
our option to refund the purchase price thereof. Geotech will have no
warranty obligation if the product is subjected to abnormal operating
conditions, accident, abuse, misuse, unauthorized modification, alteration,
repair, or replacement of wear parts. User assumes all other risk, if any,
including the risk of injury, loss, or damage, direct or consequential,
arising out of the use, misuse, or inability to use this product. User
agrees to use, maintain and install product in accordance with
recommendations and instructions. User is responsible for transportation
charges connected to the repair or replacement of product under this
warranty.
Equipment Return Policy
A Return Material Authorization number (RMA #) is required prior to
return of any equipment to our facilities, please call 800 number for
appropriate location. An RMA # will be issued upon receipt of your
request to return equipment, which should include reasons for the return.
Your return shipment to us must have this RMA # clearly marked on the
outside of the package. Proof of date of purchase is required for
processing of all warranty requests.
This policy applies to both equipment sales and repair orders.
FOR A RETURN MATERIAL AUTHORIZATION, PLEASE CALL OUR
SERVICE DEPARTMENT AT 1-800-833-7958 OR 1-800-275-5325.
Model Number:
________________
Serial Number:
________________
Date:
________________
Equipment Decontamination
Prior to return, all equipment must be thoroughly cleaned and
decontaminated. Please make note on RMA form, the use of equipment,
contaminants equipment was exposed to, and decontamination
solutions/methods used.
Geotech reserves the right to refuse any equipment not properly
decontaminated. Geotech may also choose to decontaminate equipment
for a fee, which will be applied to the repair order invoice.
Geotech Environmental Equipment, Inc
2650 East 40th Avenue Denver, Colorado 80205
(303) 320-4764 ● (800) 833-7958 ● FAX (303) 322-7242
email: sales@geotechenv.com website: www.geotechenv.com
In Michigan Call
Geotech Environmental Equipment Inc.
1099 West River Avenue Williamston, Michigan 48895
(517) 655-5616 • (800) 275-5325 • FAX (517) 655-1157