 Do not move the WAT-250D2 with the cables connected.

Before moving the WAT-250D2, always remove the video
cable and power cable from the rear of the camera first.

Color CCD Camera

 Avoid using the WAT-250D2 near any strong

WAT-250D2

electromagnetic field.
After installing into main equipment, if the WAT-250D2 isexposed to electromagnetic waves causing the monitored
image to become distorted, we recommend the camera beshielded by appropriate protective casing.

Operation ManualThis Operation Manual covers safety, camera functions, installation and thecorrect operating procedure for the WAT-250D2. First, we ask you to readthis Operation Manual thoroughly, then install and operate the WAT-250D2
as advised. In addition, for future reference, we also advise safekeeping of
this manual.
Please contact the distributor or dealer from which the WAT-250D2 waspurchased, if you do not understand the installation, operation or safety
instructions laid out in this manual. Not understanding the contents of theOperation Manual sufficiently may cause damage to the camera.

Problems and Trouble Shooting
If any of the following problems occur when using the WAT-250D2,
 An optimal picture cannot be obtained, after checking that all the cables

and connections are correctly in place Smoke or any unusual odor emerges from the WAT-250D2
An object becomes embedded or a quantity of liquid seeps into thecamera housing

Guide to the Safety Symbols
The definitions of the symbols used in this operation manual are:DangerWarning

CautionWhen you do not adhere to or take notice of the “Danger” sign,
it may lead to a serious accident such as death or injury causedby fire or electric shock.
When you do not adhere to or take notice of the “Warning” sign,
it may cause severe damage such as a physical injury.
When you do not adhere to or take notice of the “Caution” sign,
it may incur injury and cause damage to peripheral objects in
the immediate surroundings.

Cautions for Safety
The WAT-250D2 is designed to be used safely; however, it may lead to aphysical accident caused by fire and electric shock if not used correctly.
Therefore, please keep and read the “Cautions for safety” below forprotection against accidents.
Danger

More than the recommended voltage or/and amperage has been applied

to the WAT-250D2 by mistakeAnything unusual occurring to any equipment connected to theWAT-250D2
Disconnect the camera immediately according to the following
procedures:①Switch off the main power supply to the camera.
②Remove the power and video cables connected to the WAT-250D2.
③Contact the distributor or dealer from which the WAT-250D2 waspurchased.

About EMC
The WAT-250D2 is in conformity with EMC test standards carried out by
authorized organizations in Japan.

 Do not disassemble and/or modify the WAT-250D2.
 Do not operate the WAT-250D2 with wet hands.
DangerWarningCaution

NTSC

FCC Part15 class B

PAL

EN61000-6-3/EN50130-4

Power Supply

Do not modify the WAT-250D2. A modified camera may notconform to EMC test standards.

 Use a stabilized power adaptor designed for DC+12V±10%, with a current capacity of more than 250mA for theWAT-250D2.
The recommended voltage is DC+12V±10%.
 Do not expose the WAT-250D2 to wetness or highmoisture conditions.
The WAT-250D2 is designed and approved for indoor use only.
The WAT-250D2 is not water-resistant or waterproof. If thelocation of the camera is outdoors or in an outdoor likeenvironment, we recommend that you use an outdoor camera
housing.
 Protect the WAT-250D2 from condensation.
Keep the WAT-250D2 dry at all times during storage andoperation.
 Should the camera not work properly, switch off the power
immediately. Then check the camera according to the“Problems and Trouble shooting” section.
 Avoid the striking of hard objects or dropping the WAT-250D2.
The WAT-250D2 uses high quality electrical parts andprecision components.
 Do not connect any power supply directly to the video out
terminal of the unit.
Do not connect the WAT-250D2 with any monitor using avideo/power single transmission terminal. The WAT-250D2 is
not designed for use with this type of equipment. We also
advise you to read the operation manual of the monitor you
plan to use before any connections are made.
 Do not install the WAT-250D2 in a position subject todirect sunlight.
Sunlight shinning directly onto the WAT-250D2 lens can cause
damage to the CCD.
 Select a stable place for installation of the WAT-250D2.
Use a support of durable strength around an installation
position on a ceiling or wall when a camera stand or tripod isused.

①CCD FRONT FACE
The light receiving face of the CCD camera(Dirt, water or oil deposits on the CCD will cause an unclear picture onthe monitor. Attach the lens cap to protect the lens and the CCD fromcontamination and damage.)②LENS MOUNT
Mount for the lens (CS-mount)③IRIS LEVEL VOLUME
By controlling the volume, the iris level of the DC iris lens can beadjusted.
④FOCUSING ADJUSTMENT SCREWS
There are 3 hex. adjustment screws each placed at intervals of 120 forfine focusing of the lens.
⑤AUTO-IRIS SOCKETThis socket is for the video/DC auto-iris lens cable connector.
(Video/DC: Auto selected by the camera)⑥TRIPOD MOUNTING SCREW HOLES
Mounting holes for stands. The size of these threads are 1/4”, 20 threads,4.5±0.2mm, which is the same as any standard camera tripod (U1/4”).
⑦VIDEO OUT (BNC)
The terminal for composite video signal output⑧AE MODE CONTROLThe switch for the shutter mode control according to the object being
monitored.
⑨POWER IN
The terminal designed for connection with the DC-plug of the power
adaptor.
⑩WHITE BALANCE
The switch for selecting white balance mode.
⑪PUSH-LOCK WHITE BALANCE
The button for manual setting of the white balance if the white balancemode is set to PWB.
⑫FUNCTION SWITCHES
Functional switches for setting AGC, gamma control, BLC (Back lightcompensation) and video level.
⑬WHITE BLEMISH CORRECTION BUTTONThe button for correction of white blemish.

Contents
Using the contents figures below, check to make sure all parts are present
before use.

Hex. wrench

Use a stabilized power adaptor designed for DC+12V±10%, with a current
capacity of more than 250mA.
Use the optional DC plug if the shape or polarity of the DC plug of the power
adaptor to be used is not compatible with the camera (See the drawing onthe right).
Warning

CautionThe wiring on the connector must be exact.
Be careful no to touch the other terminal while wiring.
Protect the wiring portion by using insulation tape afterwiring. If the above care and attention is not adhered to,damage to the WAT-250D2 and power adaptor mayoccur and may also cause fire.

DC+12VWAT-250D2

Description of Parts

DC Plug

Iris Connector③②①Pin No.
①②③④AE Mode

EIAJ DC
Auto-iris Lens
Arrangement
Control －Control ＋
Drive ＋
Drive －LEVEL

Effect10) Set the ⑫FUNCTION SWITCHES according toiyour requirements.

Setting
ON

AGC

2.
Gamma
Correction

OFFON
OFFON

3.
BLC

OFF

Set-up and Operation
1) Ensure that the power to the WAT-250D2 and the peripheral equipment
is turned off before making any connections.
2) Remove the lens mount cap from the WAT-250D2 and attach theCS-mount lens. Use the optional C-mount adaptor(30CMA-R) when a
C-mount lens is used.
3) Connect the iris control cable to ⑤AUTO-IRIS SOCKET on the WAT250D2 when an auto-iris lens is being used.

OPEN

Automatically selects the shutter speed according toEI
The lighting conditions, retaining the proper
exposure mode. (Electronic Iris)
Reduces the flickering phenomena occurring on theFL
monitor screen caused by fluorescent or mercury
lamps.
OFFFixes the shutter speed to NTSC1/60, PAL1/50.
※In EI mode, intense light may leave a trail on the screen longitude.
This smearing is a natural phenomenon and is not due to equipment
failure or fault.
9) Adjust the required white balance settings by the ⑩WHITE BALANCE
ior ⑪PUSH-LOCK WHITE BALANCE.
(White balance mode is set to ATW upon shipment.)
Mode
EffectAutomatically adjusts to the changing color
ATW
temperature of the illumination.
Manually adjusted according to your requirement
PWB⑪ PUSH-LOCK WHITE BALANCE keep presseduntil the required color temperature is acquired.

1.

EIAJ Video
Auto-iris Lens
Arrangement
PowerNot usedIris signals
Common (GND)

CLOSED8) Select any required shutter mode by the ⑧AE MODE CONTROL.
(Shutter mode is set to EI upon shipment.)

SwitchBefore connecting the auto-iris lens, please make sure that the pin
configuration is correct by confirming with the following table. If theconfiguration of your iris connector is different from the following, the plugand pins will need to be rewired.

④Iris Level Adjustment (for DC auto-iris lenses only)
Adjust ③IRIS LEVEL VOLUME placed on the sideof the unit until an acceptable light level is attained.
No change will occur if a video iris lens or manualiris lens is fitted.

COMMON(GND)

Auto-iris Lens
Lens Mount Cap4) Connect ⑦VIDEO OUT on the WAT-250D2 with the monitor, using a
coaxial cable with 75 impedance, such as an RG-59 or an RG-6/U.
Select a monitor with the same television system as the WAT-250D2:NTSC or PAL. A monitor with more than 600TV lines is recommended.
5) Insert the power plug of the power adaptor to ⑨POWER IN on the backpanel of the WAT-250D2. Confirm that the power adaptor is notconnected to the power supply before insertion of the power plug into
⑨POWER IN.
6) Turn on the power to the WAT-250D2, monitor and all other alliedequipment. When a picture cannot be obtained on the monitor, checkand follow the procedure mentioned in the Problems and Trouble
Shooting section.
7) After following the procedure below and the picture is still out of focus,
open the iris fully and loosen ④FOCUSING ADJUSTMENT SCREWS
with the hex. wrench and move the lens forwards until a clear picture isobtained.
Adjust the focus and iris to the best position
Manual Lens
on the lens.
Video Auto-iris Lens Adjust the focus on the lens.
Adjust the iris level on the camera, thenDC Auto-iris Lens
adjust the focus on the lens. See below.

4.
VideoLevel

Effective Condition
When sensitivity is more
important than the SN ratio
When SN ratio is more important
than sensitivity, or when a stable
lighting condition is present
Applicable to a generalsurveillance monitoring system
When gamma correction is not
required for image processing
When the picture of themonitored object is silhouetted
due to strong lighting fromabove or behind
When the illuminationdifferences between a monitored
object is narrowON100

When dark areas on an object
with contrasting light and darkarea are monitored

OFF75

When the standard video
output level is required

Factory
Settings

12) Correction of white blemish by ⑬WHITE BLEMISH CORRECTION
BUTTON. The WAT-250D2 is manufactured using high-grade CCD
devices that are selected by tough standards by the manufacturer.
However, it is impossible to prevent the white blemishes from occurring
after shipment because the white blemish phenomena can be causedby cosmic rays. The WAT-250D2 has a white blemish correction circuit
to help control the white blemish phenomena. Correct according to thefollowing procedures, if white blemishes are present.
[PROCEDURE]
1. Completely cover the lens to prevent light entering.
2. Set to PWB by ⑩WHITE BALANCE
3. Set to AGC ON by ⑫FUNCTION SWITCHES
4. Press the ⑬WHITE BLEMISH CORRECTION BUTTON using afine stick.
5. After 5 seconds, the white blemishes are automatically detected,
and then recorded to the camera.
※Make sure that the lens is completely shielded from light before
correction of the white blemishes. If the lens is not covered properly
and light can enter into the lens on to the CCD face, the correction ofthe white blemish may not be detected correctly.
※Make sure that ⑩WHITE BALANCE “PWB” is selected. If ATW
position is selected; the data cannot be saved to the camera.

Options
To purchase these options, please contact the distributor or dealer fromwhich you purchased the WAT-250D2.

C-mount Adaptor (30CMA-R)
This lens mount adaptor is used
to convert a CS-mount to aC-mount.

Mini Stand (MS50)
A convenient stand for theWAT-250D2. With this stand, thecamera can be adjusted to any
desired angle.

Contact information
Design and specifications are subject to change without notice.
 Watec is not responsible for any inconvenience or the attendant damages

to the video and monitoring recording equipment caused by misuse, misoperation or improper wiring of our equipment.
 If for any reason the WAT-250D2 does not work properly, or if you haveany questions regarding installation or operation, please contact thedistributor or dealer from which it was purchased.

Contact information
Watec Co., Ltd.
Add.:I 254-2 Nihonkoku, Daihoji, Tsuruoka- Shi,
Yamagata-Ken, 997-0017 Japan
TEL: +81-235-23-4400 FAX: +81-235-23-4409
E-mail: info-o@watec.co.jp
URL: http://www.watec.co.jp
1483Z00-Y2000005