Hitachi BE-IR20 User manual

Please read this operation Guide carefully for proper operation, and keep it for future refernce.
B
E-IR20 / 21
Infrared B/W Camera Module
Operation Guide

Table of Contents
BE-IR20 / 21
1
1. Introduction ･･･････････････････････････････････････････ 2
2. General･･･････････････････････････････････････････････ 2
3. Composition･･･････････････････････････････････････････ 2
4. Specifications･･････････････････････････････････････････ 2
5. Notes to users ･････････････････････････････････････････ 4
6. External view ･･････････････････････････････････････････ 6
7. Optical dimensions ･････････････････････････････････････ 6
8. Installation ････････････････････････････････････････････ 7
9. Typical connection ･････････････････････････････････････ 8
10．External sync (BE-IR21) ････････････････････････････････ 10
11．Function settings and changes
11-1 AGC on / off ･･････････････････････････････････････ 12
11-2 Gamma response ･････････････････････････････････ 13
11-3 Auto electronic shutter on / off ･･････････････････････ 14
11-4 Changes to fixed shutter mode･･････････････････････ 15
11-5 BE-IR20 external sync ･････････････････････････････ 16
11-6 BE-IR21 internal sync･･････････････････････････････ 17
11-7 HD and VD output (BE-IR20 only) ･･･････････････････ 18
12．Options
Mount adapter LA-IR20 ･･････････････････････････････････ 19
Attachment ：Spectral sensitivity characteristic･･･････････････ 21

1. Introduction
BE-IR20 / 21 2
Thank you very much for your purchase of the Hitachi BE-IR20/21 Black and White Camera
Module.
Prior to using this camera , read this manual carefully.
2. General
The Hitachi BE-IR20/21 are black and white camera modules using a 1/4 inch interline CCD.
The BE-IR20/21 are so small that they are most suitable for use with the equipment provided
with limited space.
BE-IR20 : Internal sync
BE-IR21 : External sync
3. Composition
1) Black and white camera module ･･････････････････ 1
2) Interface cable ･････････････････････････････････ 1
Note : The standard accessory cable is 300 mm signal conductor.
Different length cable requires shielding to avoid external noise.
4. Specifications
1) Imaging device 1/2 inch interline CCD
No. of pixels EIA : 811(H)×508(V)
CCIR : 795(H)×596(V)
No. of effective pixels EIA : 768(H)×494(V)
CCIR : 752(H)×582
Pixel pitch EIA : 8.4(H)×9.8(v)µm
CCIR : 8.6(H)×8.3(V)µm
2) Sensing area EIA : 6.45(H)×4.84(V)mm
CCIR : 6.47(H)×4.83(V)mm
3) Signal format Conforming to EIA or CCIR.
4) Scanning system 2:1 interlaced
5) Hor. scanning frequency EIA : 15.734 kHz
CCIR : 15.625 kHz
6) Vert. scanning frequency EIA : 59.94 Hz
CCIR : 50 Hz
7) Sync system BE-IR20 : Internal sync
BE-IR21 : External sync

4．
．．
．Specifications
BE-IR20 / 21 3
8) External sync input HD & VD : 5V peak-to-peak negative
Input impedance : 1kΩ
Frequency deviation : ±1%
9) Video output 1.0 Vp-p, 75Ω, unbalanced
Video component : 0.7 Vp-p
Sync component : 0.3 Vp-p negative
10) Resolution EIA : 570(H)×380(V) TV lines
CCIR : 560(H)×380(V) TV lines
11) Signal to noise ratio 56 dB
12) Auto electronic shutter Provided (factory setting OFF)
13) Automatic gain control (AGC) Max. 32 dB approx. Fixed gain(factory setting)
14) Integration mode Field integration mode
15) Gamma correction 0.45
ON (factory setting) or OFF
Selected by changing chip parts
16) Sensitivity 30 lux , F4, 3200k
17) Minimum illumination 0.3 lux , F1.4 , AGC and gamma on
18) Power supply voltage 9 ±0.5 VDC
19) Power consumption Approx. 160mA
8) Ambient conditions Operating : -5 to 45℃, 90% RH or less
Storage : -10 to 60℃, 70% RH or less
21) External dimensions 34(W)×34(H)×20(D) mm
22) Mass Approx. 17 grams (w/o cable)
23) Options Mount adaptor LA-IR20

5. Notes to users
BE-IR20 / 21 4
Power supply
zConnect a 9V DC voltage (8.5 to 9.5V) from an external regulated DC power supply.
zUse a stable power supply without ripple and noise.
zPrior to turning on the power switch , check that the polarities of the power cable are
correct , referring to the connection diagram (Page 8 , 9)
To protect CCD (sensor)
zDo not touch the glass surface of the CCD sensor to avoid deterioration in picture
quality due to dirt and scratches.
zIf the glass surface of the sensor should become dusty or dirty , remove dust or dirt
carefully with a cotton-tipped applicator. Do not wipe the surface with dry cloth or
paper tissue to avoid possible damage to the glass surface by static electricity.
Protection of camera
zDo not use or store the camera under direct sunlight , at a place exposed to rain or
snow , or at a place where flammable or corrosive gas is present.
zWhen housing the camera in a camera case , use the utmost care regarding rise of
internal temperature.
When casing the camera , the temperature normally rises by 10 to 20℃, compared
with the outside air temperature. The camera operates in the temperature range from
-5 to 45℃. If the camera is used or left in high temperature environment for hours ,
the life of the camera may be shortened.
zDo not drop the camera. Do not apply strong shock or vibration to the camera.
zBefore connecting or disconnecting a connector , turn off the camera and be sure to
hold connector body to connect or disconnect the connector.
Camera arrangement
zMutual interference noise can occur if multiple cameras are arranged in close proximity.
Separate the cameras to the extent possible.
When camera units are installed directly into other equipment , external noise can
prevent a normal picture. In such cases , shield the camera units.
The camera can be damaged by static electricity. Use ample care when installing
and arranging.
Auto electric shutter
zIn regions using 50 Hz power line frequency , flicker can appear on the monitor screen
from light sources such as fluorescent or mercury. In such cases , release the auto
electronic shutter.

5. Notes to users
BE-IR20 / 21 5
Phenomena inherent to CCD imaging device
Following are phenomena inherent to a CCD imaging device , and not defects.
zSmear and blooming
When strong light (lamp , fluorescent lamp , reflected light , etc.) is shot , pale bands
are displayed vertically above and below the light.
In this case , change the angle of the camera so that such strong light does not enter
the camera through the lens.
zFixed pattern noise
When the camera is operated in a high temperature , fixed pattern noise may appear
on the entire screen.
The higher the sensitivity of camera , the more this fixed pattern noise appears.
zMoire
When fine patterns are shot , moire may be displayed.
zThe CE mark is required when exporting to Europe. Obtain the necessary
authorization for the customer’s system. Enclose the camera in a shielded case and
use shielded cable.

6. External view
BE-IR20 / 21 6
Dimensions
7. Optical dimensions
Lens
19.2 ± 0.5
(C-mount)
1.4 ± 0.2
CCD
Base plate
Imaging face
Lens-mount
Extension of optical path due
to the thickness of CCD glass
is considered.

8. Installation
BE-IR20 / 21 7
When installing the camera in a housing or unit of equipment, secure with two M2 screws
inserted into the 2.5 mm diameters holes of the SENS board base plate.
1. Use the SENS board holds to install the camera. Avoid using only the Main board,
due to risk of damage to the board connector.
2. Avoid unnecessary stress on the printed board when engaging and disengaging the
connectors.
3. The screws securing the base plate and SENS board protrude a maximum of 2 mm
from the base plate. Observe these screws do not contact the housing or installed
equipment.
Two 2.5 mm Dia.
SENS board
Notes :

9. Typical connection
BE-IR20 / 21 8
BE-IR20
Image processor or
Video monitor
Regulated power supply
(More then 300 mA)
Note1 : •When more than one video monitor is connected in
series , set the 75Ωtermination switch on the last unit
to ON.
Note2 : •Supply voltage range : 8.5 to 9.5V
•Be sure to check the polarities of the power source
before turning on the external DC power supply.
Connector
B7B-ZR
(Note 1)
Housing
ZHR-7
BLK
DC9V
(Note 2)
YEL
GRN
RED
75Ω
ON
VIDEO
INOUT
OFF
N.C7 N.C6 N.C5 +9V 4 GND 3 VideoOUT2
VideoGND1
−
−−
−＋
＋＋
＋

9. Typical connection
BE-IR20 / 21 9
BE-IR21
Image processor or
Video monitor
Regulated power supply
(More then 300 mA)
Note1 : •When more than one video monitor is connected in
series , set the 75Ωtermination switch on the last unit
to ON.
Note2 : •Supply voltage range : 8.5 to 9.5V
•Be sure to check the polarities of the power source
before turning on the external DC power supply.
Connector
B7B-ZR
(Note 1)
Housing
ZHR-7
BLK
DC9V
(Note 2)
YEL
External sync signal
GRN
RED
75Ω
ON
VIDEO
INOUT
OFF
GND 7 V.D6 H.D5 +9V 4 GND 3 VideoOUT2 VideoGND1
−
−−
−＋
＋＋
＋
HD
VD
GND

10. External sync (BE-IR21)
BE-IR20 / 21 10
Supply sync signals (HD and VD) for BE-IR21 operation. Refer to connection on page 9.
zHorizontal and vertical drive signal inputs
HD EIA: f(H) = 15.734 kHz ±1 %
VD EIA: f(V) = 59.94 Hz (f(V) = f(H) ÷262.5)
zInput level
HD 4 to 6 Vp-p negative
VD 4 to 6 Vp-p negative
zInput impedance 1 kΩ
HD
VD
T=1/f(H)
zVertical drive signal (VD)
zHorizontal drive signal (HD)
Set HD and VD fallings edges to the same phase (0 ±5 µs)
zHD and VD phase relationship
zDrive signal input waveform
Approx. 6.7µs
4〜6Vp-p
Approx. 0.6ms
4〜6Vp-p
T=1/f(V)

11. Function setting and changes
BE-IR20 / 21 11
When changing the function settings , perform the work with thorough care. Be sure to use
anti-static measures such as a grounding band. Also observe safety precautions when
soldering to avoid burn and fire hazards.
Hitachi Denshi assumes on liability for damage or injury resulting from such work.
Since the function setting can be provided at the time of shipment , consult a Hitachi Denshi
representative.
11-1 AGC on / off
Factory setting is AGC off (fixed gain). If necessary in the application, AGC can be set to on.
When the AGC is off, the gain can be changed by turning RV201.
Set AGC on by changing the indicated chip parts.
Gain R211 R212
fixed gain 0ΩAbsent Factory setting
AGC Remove 0Ω
Location of chip resistor (Main board side A)

11. Function setting and changes
BE-IR20 / 21 12
11-2 Gamma response
The factory setting is gamma on. If necessary , the gamma response can be changed as
follows.
Change the gamma response by changing the chip part.
Gamma(γ)response R217 R218 R219
ON Absent 0Ω0ΩFactory setting
OFF 0ΩRemove Remove
0Ω: Part code RME1784
Description ERJ3GEYJ0R00V
Location of chip capacitors (Main board side B)

11. Function setting and changes
BE-IR20 / 21 13
11-3 Auto electronic shutter on / off
Factory setting for auto electronic shutter is off. If necessary , it can be set to on.
Absent the R259 , R260 chip to set the auto electronic shutter to on.
Auto electronic shutter R259 R260
OFF 0Ω0ΩFactory setting
ON Absent Absent
0Ω: Part code RME2068
Description ERJ2GE0R00X
Location of chip resistors (Main board side B)

11. Function setting and changes
BE-IR20 / 21 14
11-4 Changes to fixed shutter mode
The fixed shutter mode can be changed by replacing the chip parts indicated below.
Mode R259 R260 R261 R262 R263 R264 R265 R266 R267 R268 R269
Normal mode 0Ω0ΩAbsent 0ΩAbsent 6800 10k 27k 10k 10k 27k
Auto electronic
shutter mode Remove Remove Absent 0ΩAbsent ↑↑↑↑↑↑
EIA
1/100
CCIR
1/120
Remove 0Ω0ΩRemove Absent 0Ω0ΩRemove 0Ω0ΩRemove
1/250 ↑↑↑↑↑↑↑↑ Remove Remove 0Ω
1/500 ↑↑ Absent Remove 0Ω↑↑↑0Ω0ΩRemove
1/1000 ↑↑↑↑↑↑↑↑ Remove Remove 0Ω
1/2000 0ΩRemove Absent Remove Remove 0Ω0Ω0ΩRemove
1/5000 ↑↑↑ 0ΩRemove Remove 0Ω
1/10000 Absent Remove 0Ω0Ω0Ω0ΩRemove
Fixed shutter mode
1/100000 ↑↑↑ 0ΩRemove Remove 0Ω
R259 , R260 : 0ΩPart code RME2068
Description ERJ2GE0R00X
Others : 0ΩPart code RME1784
Description ERJ3GEYJ0R00V
(Main board side A) (Main board side B)
Location of chip resistors
Factory
setting

11. Function setting and changes
BE-IR20 / 21 15
11-5 BE-IR20 external sync
The BE-IR20 factory setting is for internal sync. If required, this can be changed to external
sync by changing chip parts.
Change the following chip parts for external sync operation.
Sync system R280 R281 R282 R284
Internal 100 ΩAbsent Absent 0 ΩFactory setting
External Delete 0 Ω100 ΩDelete
0 Ω：Part code RME1784
Type ERJ3GEYJ0R00V
100 Ω：Part code RME1797
Type ERJ3GEYJ101V
(Main board side A) (Main board side B)
Location of chip resistors

11. Function setting and changes
BE-IR20 / 21 16
11-6 BE-IR21 internal sync
The BE-IR21 factory setting is for external sync. If required, this can be changed to internal
sync by changing chip parts.
Change the following chip parts for internal sync operation.
Sync system R280 R281 R282 R284
External Absent 0 Ω100 ΩAbsent Factory setting
Internal 100 ΩDelete Delete 0 Ω
0 Ω：Part code RME1784
Type ERJ3GEYJ0R00V
100 Ω：Part code RME1797
Type ERJ3GEYJ101V
(Main board side A) (Main board side B)
Location of chip resistors

11. Function setting and changes
BE-IR20 / 21 17
11-7 HD and VD output (BE-IR20 only)
The BE-IR20 can be provided with horizontal and vertical drive outputs by changing chip parts.
Change the following chip parts to provide HD and VD outputs.
R233 R239 R240 R241 R242 R248 R249 R250
Factory setting 0 ΩAbsent 0 ΩAbsent 0 ΩAbsent 0 ΩAbsent
HD & VD output Delete 0 ΩDelete 0 ΩDelete 0 ΩDelete 0 Ω
0 Ω：Part code RME1784
Type ERJ3GEYJ0R00V
Connector pin assignments after
change
Location of chip resistors(Main board side B)
Note:
Note:Note:
Note:The accessory cable cannot
The accessory cable cannotThe accessory cable cannot
The accessory cable cannot
be used for signal outputs.
be used for signal outputs.be used for signal outputs.
be used for signal outputs.
Pin No. Signal
１Video out
２Video GND
３GND
４+9V
５HD out
６VD out
７HD/VD GND

12. Options
BE-IR20 / 21 18
LA-IR20 Mount adapter dimensions
Remove c-mount attachment to use as cs-mount.

12. Options
BE-IR20 / 21 19
BE-IR20/21 and LA-IR20 combined dimensions