Fisher CW20 Operating Manual

OPERATING MANUAL

CW20

™

Hand-Held
Metal Detector

DETECTOR FEATURES

1. Quick-Change Battery Compartment

Use a coin or screwdriver to open compartment.
Insert circular cam lock and twist to secure in closed position.

2. All Metal Detection

Detects all types of metals.
Will not detector non-metallic objects or weapons that do not contain metal.

3. Momentary Low Detection

While holding down the "Momentary Low" switch, the detection range will be reduced.

a) Very small metal objects, such as the metal rivets sewn into clothing, will not be

detected beyond a range of one inch from the object.

INTERFERENCE ELIMINATION FEATURES

• 3 Operating frequency selections to eliminate
electromagnetic interference from other devices

OPERATING FREQUENCY

7.1 kHz

POWER SUPPLY

• Requires (1) 9-Volt battery
(included)

• Low Battery LED indicator

MOMENTARY LOW OPERATION

• Minimizes Interference from
environmental metal objects

• Can eliminate signals from ver

y

small metal objects

COMFORT
GRIP

OPERATOR DETECTION ALERTS

• Audio Alert – High Pitch Sound

• Vibration Alert

• LED Target Indicator - Red

b) Large environmental metal objects, such as the metal reinforcing bars in floors,

will not be detected beyond a range of several inches.

Upon release of the "Momentary Low" switch, the detector will return to Normal Operation.

4. Silent Operation

Position the Silent/Audio switch in the "Silent/Vibrate" position and:

a) The detector will NOT emit the High-Pitch tone upon the detection of metal objects.
b) The vibrator will activate upon the detection of a metal object, and the "Target"

LED indicator will illuminate.

5. Operating Frequency Selection

Chose from two alternate operating frequencies in the event of electromagnetic
interference from other electronic devices.

6. Low Battery Indication

When battery needs to be replaced, Low Battery LED will illuminate.

7. Visual Target Response

Red LED flashes when a metal object is located

8. Comfort Hand Grip

First Time Operation

To Operate the Detector,

1) Install the Battery
a. Use a 9-volt ALKALINE battery only (included)
b. Install battery with correct polarity

(align "+" on detector housing with "+" on battery)

c. The battery cover opens and closes with a coin or screwdriver

2) Set the On switch to "ON"

"ON" is the middle position

3) Select Audio or Vibrate Mode

4) Sweep the Detector over the target area.

Detector must be IN MOTION to detect metal

5) Read this manual for proper training in the detection of metal objects

Batteries

Use 9-Volt ALKALINE battery only (included)

Low Battery Alert

The Yellow LED indicator light will illuminate and remain illuminated before the batteries
are discharged to the point at which the detector has lost any of its metal detecting
range.

In order to guarantee maximum detection at all times, replace battery as soon as yellow
light illuminates.

The detector will continue to operate, at a lower sensitivity, after the Low Battery
Indicator is illuminated. Replace batteries as soon as possible after the indicator
illuminates.

If you plan to store the CW20™
for several days or more,
remove the battery.

YELLOW LED

Low Battery

Indicator

Battery

Chamber

“+” Polarity Side for Battery

●

+

Power Switch with Momentary Low

The Power switch has 2 "ON" positions and a forward "OFF" position.

The detector is OFF with the switch in the "UP" position

The detector is ON with the switch in the "MIDDLE" position

The detector is in

MOMENTARY LOW operation with the switch

held in the "DOWN" position.
While holding down the "Momentary Low" switch, the detection range will be reduced.

a) Very small metal objects, such as the metal rivets sewn into clothing, will not be

detected beyond a range of one inch from the object.

b) Large environmental metal objects, such as the metal reinforcing bars in floors,

will not be detected beyond a range of several inches.

Upon release of the "Momentary Low" switch, the detector will return to Normal Operation

LED Indicators

• The GREEN light indicates that the detector is ON

• The YELLOW light indicates LOW BATTERY

• The RED light indicates the detection of a metal object

Red

Green

Yellow

Momentary

Low

OFF

ON

Body Scanning for the Detection of
Metal Objects

Always test the detector before operation. Sweep the detector across a known
metal object, and verify detection with audio, vibratory, and visual feedback.

Motion is Required: The metal detector must be IN MOTION,

sweeping across the target area, to detect
the presence of metal.

The subject should stand upright, with arms and legs extended.

Sweep the detector over the subject, with a smooth, even motion, about one inch from the body.
Avoid making physical contact between the subject and the detector.
Press and Hold the "Momentary Low" switch to eliminate interference from the metal bars in
floors, or from very small metal objects, such as rivets or zippers sewn into clothing.

CAUTION: Use in the MOMENTARY LOW mode will desensitize the detector.

Use the Momentary Low switch only after the detection of metal, and the
verification of the absence of a larger metal object

Scanning Personnel in security situations should be properly trained and supervised.
This detector will not detect non-metallic objects.

2-YEAR LIMITED WARRANTY

This product is warranted against defects in materials and workmanship under normal use for
two years from the date of purchase to the original owner.
Damage due to neglect, accidental damage or misuse of this product is not covered under this
warranty. Decisions regarding abuse or misuse of the detector are made solely at the discretion
of the manufacturer.

Proof of Purchase is required make a claim under this warranty.

Liability under this Warranty is limited to replacing or repairing, at our option, the metal detec­tor returned, shipping cost prepaid to Fisher Labs. Shipping cost to Fisher Labs is the responsi­bility of the purchaser.

To return your detector for service, please first contact Fisher Labs for a Return Authorization
(RA) Number. Reference the RA number on your package and return the detector within 15 days
of calling to:

Fisher®Research Labs, Inc.

1465-H Henry Brennan Dr., El Paso, TX 79936

Phone: [phone] ext.118

Warranty coverage does not include the cost of transporting the detector for an owner who is
located outside of the United States of America.
Fisher Research Labs does not warrant suitability for a specific purpose, and shall in no event be
liable for any direct, incidental, or consequential damages.

According to FCC part 15.21

Changes or Modifications made to this device not expressly approved by the party responsible for compliance

could void the users authority to operate this equipment.

This device complies with FCC Part 15 Subpart B Section 15.109 Class B

NOTE TO CUSTOMERS OUTSIDE THE USA

This warranty may vary in other countries, check with your distributor for details.

Warranty does not cover shipping costs.

MADE IN U.S.A.

MCW20 Rev.2 031913

MCW20 Rev.2 031913

Copyright©2013

Copyright©2013