• Avoid using the WAT-231S2 near any strong electro-magnetic field.
After installing into main equipment, if the WAT-231S2 is
exposed to electromagnetic waves causing the monitored
image to become distorted, we recommend the camera beshielded by appropriate protective casing.

Color CCD Camera

WAT-231S2
Operation ManualThis Operation Manual covers safety, camera functions, installation and thecorrect operating procedure for the WAT-231S2. First, we ask you to readthis Operation Manual thoroughly, then install and operate the WAT-231S2
as advised. In addition, for future reference, we also advise safekeeping of
this manual.
Please contact the distributor or dealer from which the WAT-231S2 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.

Guide to the Safety Symbols
The definitions of the symbols used in this operation manual are:DangerWhen you do not adhere to or take notice of the “Danger” sign, it
may lead to a serious accident such as death or injury caused byfire or electric shock.

Warning

When you do not adhere to or take notice of the “Warning” sign,
it may cause severe damage such as a physical injury.

CautionWhen you do not adhere to or take notice of the “Caution” sign, it
may incur injury and cause damage to peripheral objects in theimmediate surroundings.

Problems and Trouble Shooting
If any of the following problems occur when using the WAT-231S2,• An optimal picture cannot be obtained, after checking that all the cablesand connections are correctly in place• Smoke or any unusual odor emerges from the WAT-231S2.

• An object becomes embedded or a quantity of liquid seeps into the camera

housing• More than the recommended voltage or/and amperage has been applied

to the WAT-231S2 by mistake• Anything unusual occurring to any equipment connected to theWAT-231S2.

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-231S2.
③Contact the distributor or dealer from which the WAT-231S2 waspurchased.

About EMC
The WAT-231S2 is in conformity with EMC test standards carried out byauthorized organizations in Japan.
NTSC
PA L

Cautions for Safety
The WAT-231S2 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.
DangerWarning

Caution• Do not disassemble and/or modify the WAT-231S2.

Danger

FCC Part15 class B
EN61000-6-3/EN50130-4

Power Supply

Do not modify the WAT-231S2. A modified camera may notconform to EMC test standards.

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

• Do not operate the WAT-231S2 with wet hands.
• Use a stabilized power adaptor designed for DC+12V±10%, with a current capacity of more than 250mA for theWAT-231S2.
The recommended voltage is DC+12V±10%• Do not expose the WAT-231S2 to wetness or high moisture
conditions.
The WAT-231S2 is designed and approved for indoor use only.
The WAT-231S2 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-231S2 from condensation.
Keep the WAT-231S2 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.

Hex. wrench

Lens Mount Cap

WAT-231S2

DC Plug

Iris Connector

Description of Parts

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 below).
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 tapeafter wiring. If the above care and attention is notadhered to, damage to the WAT-231S2 and power
adaptor may occur and may also cause fire.

DC+12VCOMMON(GND)

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

④③• Avoid the striking of hard objects or dropping the WAT-231S2.
The WAT-231S2 uses high quality electrical parts and precisioncomponents.
• Do not connect any power supply directly to the video out
terminal of the unit.
Do not connect the WAT-231S2 with any monitor using avideo/power single transmission terminal. The WAT-231S2 isnot 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-231S2 in a position subject to direct
sunlight.
Sunlight shinning directly onto the WAT-231S2 lens can cause
damage to the CCD.
• Select a stable place for installation of the WAT-231S2.
Use a support of durable strength around an installation
position on a ceiling or wall when a camera stand or tripod isused.
• Do not move the WAT-231S2 with the cables connected.
Before moving the WAT-231S2, always remove the video
cable and power cable from the rear of the camera first.

⑤AUTO-IRIS SOCKET・This socket is for a video or 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”).
⑦WHITE BALANCE MODE SELECTOR
・The selector for the white balance mode.
⑧PUSH BUTTON (R) (MWB mode)
・The button for adjustment of the white balance to increase the red hue of amonitored image using M.W.B mode.
⑨PUSH BUTTON (B) (MWB mode)
・The button for adjustment of the white balance to increase the blue hue ofa monitored image using MWB mode.
⑩VIDEO OUT (BNC)
・The terminal for composite video signal output⑪Y/C OUT
・The terminal for Y/C signal output⑫POWER IN
・The terminal designed for the DC-plug of the power adaptor⑬FUNCTION SWITCHES・Functional switches for setting AGC, BLC and gamma control.
⑭MGC VOLUME ADJUSTING
・The volume for setting manual gain control⑮AE MODE CONTROL・The switch for the electronic shutter mode control according to the object
being monitored.
⑯WHITE BLEMISH CORRECTION BUTTON・The button for correction of white blemish.

②Pin No.

EIAJ Video
Auto-iris Lens
Arrangement

EIAJ DC
Auto-iris Lens
Arrangement

①

①
②
③
④

Power
Not used
Iris signals
Common (GND)

Control －Control ＋
Drive ＋
Drive －5) Insert the power plug of the power adaptor to ⑫POWER IN on the backpanel of the WAT-231S2. Confirm that the power adaptor is notconnected to the power supply before insertion of the power plug into
⑫POWER IN.
6) Turn on the power to the WAT-231S2, monitor and all other allied
equipment. When a picture cannot be obtained on the monitor, or a
problem occurs, check and 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.
Iris 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.

①CCD FRONT FACE
・The light receiving face of the CCD camera(Dirt, water or oil deposits on the CCD will cause an unclear picture on themonitor. Attach the lens cap to protect the lens and CCD fromcontamination and damage.)②LENS MOUNT・Mount for the lens (Thread type)③IRIS LEVEL VOLUME・By controlling the volume, the iris level of a DC iris lens can be adjusted.
④FOCUSING ADJUSTMENT SCREWS・There are 3 hex. adjustment screws each placed at intervals of 120゜forfine focusing of the lens.

OPENLEVEL

8) Select any required shutter speed by the ⑮AE MODE CONTROL to oneof its 10 positions. (Shutter mode is set to 8 upon shipment)No.

Mode0123456789OFFFL
ESESESESESESEI: OFF
EI: FL

Shutter Speeds (Sec.)
NTSC
PAL
1/60
1/50
1/100
1/120
1/250
1/500
1/10001/20001/40001/10000
1/60-1/100000

1/50-1/100000

AE ModeOFFEffect
Fixes the shutter speed to NTSC: 1/60, PAL: 1/50.
Reduces the flickering phenomena occurring on theFL
monitor screen caused by fluorescent or mercury
lamps.
Fixes the shutter speed in a range between 1/250ES
1/10000. (6 steps)
Automatically selects the shutter speed according toOFF the lighting conditions, retaining the proper exposuremode. (Electronic Iris)
EI
For electronic iris reducing the flickering phenomena
FLoccurring on the monitor screen caused by fluorescentor mercury lamps.
※An intense light may leave a trail on the screen longitude. Thissmearing is a natural phenomenon and is not due to equipment failureor fault.
9) Select any required white balance mode by ⑦WHITEBALANCE MODE SELECTOR. (White balance mode isset to AUTO upon shipment)
ModeName

AUTO

Auto-tracking

MWB

ManualPWB

Push-lockSet-up and Operation
1) Ensure that the power to the WAT-231S2 and the peripheral equipment isturned off before making any connections.
2) Remove the lens mount cap from the WAT-231S2 and attach theCS-mount lens. Use the optional C-mount adaptor (34CMA-R) when a
C-mount lens is used.
3) Connect the iris control cable to ⑤AUTO-IRIS SOCKET on the WAT231S2 when an auto-iris lens is being used.
4) Connect ⑩VIDEO OUT on the WAT-231S2 with the monitor, using a
coaxial cable with 75Ω impedance, such as an RG-59 or an RG-6/U.
If the monitor has an S-terminal, high resolution imaging is possible byconnecting with ⑪Y/C OUT.
※The ⑪Y/C OUT can be used together with the ⑩VIDEO OUT.
※Select a monitor with the same television system as the WAT-231S2
iNTSC or PAL. A monitor with more than 600TV lines is recommended.

CLOSEDLock

1
2

Incandescent(=3200K)
Fluorescent 1(=4300K)
Fluorescent 2(=5100K)
Sunlight(=6300K)

EffectAutomatically follows and adjusts to thechanging color temperature of theillumination.
Manual adjustment using ⑧⑨PUSH
BUTTON(R)(B) as required.
Adjusted with ⑨PUSH BUTTON(B)according to the color temperature of theenvironment. As long as (B)button ispressed, the color temperature isadjusted according to the environment.
As soon as the (B)button is released, thecolor temperature will be fixed at thatsetting.
To lock your manually adjusted color
temperature settings.
Color correction to give natural color
renditions under incandescent lighting.
Color correction to give natural color
renditions under reddish fluorescent light.
Color correction to give natural color
renditions under bluish fluorescent light.
Used in sunlight to retain white balance.

Contact information

10) Set the ⑬FUNCTION SWITCHES according to
your requirements.
SwitchSetting

Effective Condition (Example)

ON・When sensitivity is more
iimportant than the SN ratio.
・When an auto iris lens can not
be used for general surveililance purposes.

1.
AGC
OFF
【MGC】

2.

3.

AGC

BLC

4.
Gamma
correction

FactorySettings

・Increase the MGC in a low lightenvironment when object
illumination is important. Lower
the gain control for a clearer
picture with less noise.

ON・When sensitivity is more impor【HI】--tant than the SN ratio
OFF・When SN ratio is important【LO】
and AGC is also required.
・When the picture of themonitored object is silhouetted
ONdue to strong lighting fromabove or behind.
・When the illumination
OFFdifferences between a
imonitored object is narrow.
・Applicable to a general surveilON
ilance monitoring system
・When gamma correction is notOFF
required for image processing11) Set the gain to the required environment by ⑭MGC VOLUME
ADJUSTING. Manually adjusted in a range between 0 to 32dB. In a low
light environment, when illumination of the object is important, increase
the manual gain. Lower the gain control for a clearer picture with lessnoise.
12) Correction of white blemish by ⑯WHITE BLEMISH CORRECTION
BUTTON. The WAT-231S2 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-231S2 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 MWB or PWB by ⑦WHITE BALANCE MODE SELECTOR
3. Set to AGC ON by ⑬FUNCTION SWITCHES
4. Press the ⑯WHITE BLEMISH CORRECTION BUTTON using a finestick.
5. After 5 seconds, the white blemishes are automatically detected, andthen 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 of
the white blemish may not be detected correctly.
※Make sure that ⑦WHITE BALANCE MODE SELECTOR ”MWB orPWB” is selected. If any other 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-231S2.

C-mount Adaptor (34CMA-R)
This lens mount adaptor is used toconvert a CS-mount to a C-mount.

Mini Stand (MS50)
A convenient stand for theWAT-231S2. With this stand, thecamera can be adjusted to any
desired angle.

• 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-231S2 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
1453Z17-Y2000005