Poskom VET-20BT User manual

Product Manual: VET-20BT Poskom Co., Ltd.
1
VET-20BT
Battery Powered Portable X-ray System
Product Manual (Operation & Service)
4Fl. Unitech ville, 1141-2, Beksuk-dong, Ilsandong-gu, Goyang, Korea 411-722
Tel. [phone], Fax. [phone], E-mail. [e-mail]

Product Manual: VET-20BT Poskom Co., Ltd.
2
PART I. OPERATION MANUAL
1. General Description -------------------------------------------------------- 3
2. Notice for Safe Use -------------------------------------------------------- 5
3. Operating Environment -------------------------------------------------------- 6
4. Radiation Safety -------------------------------------------------------- 7
5. Composition -------------------------------------------------------- 8
6. Specification -------------------------------------------------------- 9
7. Name of Each Parts -------------------------------------------------------- 13
8. Operation Standard Mode -------------------------------------------------------- 15
9. Operation Mode -------------------------------------------------------- 17
10. Remote Control Function& Operation -------------------------------------------------------- 19
PART II. SERVICE MANUAL
1. Notice -------------------------------------------------------- 23
2. Regular Maintenance -------------------------------------------------------- 24
3. Block Diagram -------------------------------------------------------- 25
4. Calibration -------------------------------------------------------- 26
5 Calibration Code and Data -------------------------------------------------------- 30
6. Error Code and Resolution -------------------------------------------------------- 31
7. Schematics -------------------------------------------------------- 32
8. How to replace Battery -------------------------------------------------------- 42
9. Composition 44
10 Service Requirement -------------------------------------------------------- 45
TABLE OF CONTENTS

Product Manual: VET-20BT Poskom Co., Ltd.
3
1. General Description
1.1 Outline
Thank you for purchasing VET-20BT, BATTERY POWERED portable x-ray system. VET-20BT is the
lightest and most compact sized high frequency type of x-ray machine like its previous models.
All Portable series are ripple free high frequency type with 40~50% stronger power output efficiency
compared with conventional x-ray systems. Therefore, it can be called as the perfect concept of
portable providing easy operation and mobility for indoor and outdoor radiography.
**Unique Features
-Compact sized body and the lightest weight
-High frequency type x-ray generator
-Maximum output: 90kV / 20mA
-21 APR memories
-Laser Collimator
-R/F Module for wireless communication (DR interface)
-Remote control software
-Electrical requirement: 16VDC / 1.5A
-Built-in Ultra Capacitor and Battery enables instant high power use
-Accessories: Aluminum carrying case, Hand switch, Power plug and charging adapter
1.2 Product Manual
This consolidated manual consists of operating and service instruction. Product manual provides
VET-20BT operating instructions for x-ray veterinarian and other medical personnel trained in the
use of x-ray equipment. Service manual provides installation instruction, calibration and routine
maintenance for field service staffs.
This manual is not designed to replace or substitute for certified training in the radiological or
medical field. By reading this manual, the operator should be qualified in the use of this equipment.
This X-ray system is only to be used by licensed operators in diagnostic, operative and post-
operative procedures.
VET-20BT can be integrated with several types of radiographic accessories such as mobile stand
and x-ray tube mounting table. As well as, the features of portable x-ray machines were considered
PART 1: OPERATION MANUAL

Product Manual: VET-20BT Poskom Co., Ltd.
4
for these applications, the description for operation used general terms.
1.3 Notice For Safety
This manual provides guideline for safe use and operation of the medical radiographic system. The
operator should be trained in the use of this equipment and refer to this manual in conjunction with
that training.
It is owner’s responsibility to ensure that the system is operated by properly trained and qualified
personnel who have obtained credentials from local, state, and federal authorities where required
only.
Potential hazards exist in the use of medical electronic devices and X-ray systems. All users and
operators must understand the safety and emergency procedures, and operating instructions
written in this manual
Poskom certifies that each system complies with the Radiation Control for Health Safety Act in Title
21, Chapter I, subchapter J of the Code of Federal Regulation in the USA and EN 60601, general
requirements for radiation protection in diagnostic X-ray equipment for IEC 601-1-3 in European
Nations.
Poskom and distributors assume no responsibility or liability for after-sales operating and safety
practices, nor can it be responsible for personal injury or damage resulting from misuse of its x-ray
systems. Please address questions and comments regarding safety issue to Poskom service
organization and/or each distributor in your region.
We certify that our product have been approved below Standard
1.EN60601-1:1990+A1:1993+A2:1995+A13:1996 Medical electrical equipment—
Part1: General requirements for safety and essential performance.
2.EN60601-2:2001/A1:2006 Medical electrical equipment—Part1-2:General
requirements for safety-collateral standard: Electromagnetic compatibility-
Requirements and tests.
3.EN60601-2-32:1994 Medical electrical equipment—Part2:Particular requirements
for the safety of associated equipment of X-ray equipment.
4.EN60601-1-3:1994 Medical electrical equipment—Part1:General requirements for
safety—3.collateral standard: General requirements for radiation protection in
Diagnostic X-ray equipment.
5.EN6061-2-7:1998 Medical electrical equipment—Part2-7:Particular requirements
for the safety of high-voltage generators of diagnostic X-ray generators.
6.EN60601-2-28:1993 Medical electrical equipment—Part2:Particular requirements
For the safety of X-ray source assemblies and X-ray tube assemblies for medical
diagnosis.

Product Manual: VET-20BT Poskom Co., Ltd.
5
If you have any inquiries, please contact Poskom or our distributors.
1.4 Caution and Warning
Possible hazards are associated with improper operation of x-ray equipments. These hazards are
described on the following warning or caution signs with the safety precautions which should be
taken.
CAUTION
The X-ray radiation could be dangerous to patients and operators unless
following safety regulations are strictly observed.
2 Notice for Safe Use
2.1 Equipment Direction
User’s safety, easy operation and product reliability are our major concern in designing this
system of generators. However, it is advisable to observe the following instructions and guidelines
for your additional safety in operating this equipment.
1) This product should be operated only by or under the supervision of legally qualified persons.
2) VET-20BT is designed for the radiographic uses and not for fluoroscopic or other associated
applications.
3) VET-20BT should be used for the diagnosis, not for the therapy.
4) VET-20BT is specified as Class I type B equipment under the IEC 601-1, 2 standards.
CAUTION
This equipment is not protective against ingress of water or liquid.
5) Do not modify the equipment at your discretion and in case any modification is required
unavoidably, ask help of Poskom or its authorized dealers for their service.
6) This system has been calibrated for optimal operation.
7) If you have any troubles with the equipment, turn off power immediately, and notify Poskom or
its authorized dealers of their service and assistance.
8) If you want connecting a device made by other manufacturers to this equipment, ask Poskom
or its authorized dealers for their instructions.
2.2 Notices for Waste
This equipment and accessories are to be disposed of safely after the life span of them and

Product Manual: VET-20BT Poskom Co., Ltd.
6
national regulation must be observed. - This equipment and accessories are to be disposed
according to the instructions given by national regulations or ask a specialized waste service
company to dispose of it.
2.3 Notice for Electromagnetic waves
“This equipment has been tested and found to comply with the limits for medical devices in IEC
60601-1-2:1994. These limits are designed to provide reasonable protection against harmful
interference in a typical medical installation.
This equipment generates. uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to other devices in the
vicinity. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to other devices, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
- Reorient or relocate the receiving device.
- Increase the separation between the equipment.
- Connect the equipment into an outlet on a circuit different from that to which the other device(s)
are connected.
- Consult the manufacturer or field service technician for help.”
2.4 Battery Direction
1) Consumed batteries should be disposed with careful treatment. There is potential danger of
explosion and fires.
2) Disposal of batteries should follow appropriate instruction considering laws and regulations of
each country and region.
3) Do not throw or dismantle used batteries. It can occur unexpected injuries, explosion or fires.
4) Apply batteries approved and designated by Poskom only. Unapproved batteries have potential
danger of explosion and fires.
5) Evade possible contact to metal subject for storage or carriage of batteries. Excessive current
from the metal can damage the conditions of battery or increase the dangers of burning.
6) Charge batteries by the adapter approved and designated by Poskom. Unapproved adapter
have potential danger of product damage.
7) Do not burn or heat the batteries. There is potential danger of explosion and fires.

Product Manual: VET-20BT Poskom Co., Ltd.
7
3. Operating Environment
3.1. For proper operation and maintenance, please avoid following places.
1) Where the equipment is exposed to water vapor.
2) Where the equipment is exposed to direct sunlight.
3) Where the equipment is exposed to heavy dust.
4) Where the equipment is exposed to high humidity.
5) Where there is insufficient ventilation.
6) Where the equipment is exposed to salty atmosphere.
7) Where the equipment is exposed to chemicals or gas.
3.2. Keep safe distance from strong vibration and maintain good environment
Operational Environment
Temperature range 10°C ~ 40°C (50℉~ 104℉)
Humidity range 30% ~ 75%RH
Optimal Working Environment
Temperature range 17°C ~ 23°C (63℉~ 73℉)
Humidity range 40% ~ 60%RH
3.3. For safe storage and transportation, please keep proper temperature, humidity and other
conditions.
Storage and Transportation
Temperature range -25°C ~ +60°C
Humidity range 10% ~ 95% RH
Atmospheric pressure range 700hPa ~ 1060hPa

Product Manual: VET-20BT Poskom Co., Ltd.
8
4. Radiation Safety
CAUTION
The ionized radiation could be dangerous to patients and operators unless
following safety regulations are strictly observed
1) Users and operators are requested to wear appropriate protecting gears and clothes.
2) Users and operators are requested to be leave safe distance from radiant sources and
secondary radiation zones.
3) Users and operators are requested to eliminate all unnecessary objects near the exposure
zones.
4) Users and operators are requested to leave at least 20cm away from the target.
5) Users and operators are requested to use minimum kV and mAs values for experimental use.
6) Users and operators are requested to be careful not to exceed the limited radiograms in the
exposure zone.

Product Manual: VET-20BT Poskom Co., Ltd.
9
5. Composition
5.1. VET-20BT is a radiological device for medical uses. It should be operated by qualified
practitioners for radiographic diagnosis only. Users should comply with safety and health
regulations concerning the ionizing protection and the electrical/ mechanical safety of medical
devices.
5.2. VET-20BT consists of following parts and devices: Following items should be firmly fixed and
connected for regular functioning.
1) Operation Panel
2) Ultra Capacitor and Inverter
3) HV Tank including X-ray Tube
4) Laser Collimator
5) Hand Switch
6) Battery
5.3. Supplement
1) Aluminum Carrying Case
2) Operation & Service Manual
3) Adaptor and AC Cord

Product Manual: VET-20BT Poskom Co., Ltd.
10
6. Specification
6.1 Technical specification
Output Power 1.6 kW (800W)
Battery Voltage DC14.8V(Lithium ion polymer Battery 4cell)
Capacity 4.8AH 20C
Input
Power1
Current Short time 96 A
Ultra Capacitor Voltage 15VDC (Ultra Capacitor 6EA)
Capacity 120F
Input
Power2
Current Short time 96 A
Radiography kV Range in 1Kv Steps 20mA (50 ~ 80kV / 0.4 ~ 3.2mAs)
10mA (50 ~ 80kV / 3.6 ~ 20mAs)
15mA (81 ~ 90kV / 0.4 ~ 3.2mAs)
8mA (81 ~ 90kV / 3.6 ~ 20mAs)
mAs Range 0.4 ~ 20mAs in 25steps
0.4, 0.6, 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, 2.0, 2.2, 2.5, 2.9, 3.2,
3.6, 4.0, 4.5, 5.0, 6.4, 8.0, 9.0, 10, 12, 15, 18, 20
Max. kV Deviation ±7 %
Max. mAs Deviation ±10 %
Indication kV (error code) /mAs: 7-segment LED
Model Name OX/70 CEI
Focal Spot 1.2mm x 1.2mm
Target Angle 19 degree
Anode Heat Storage 10 kJ
X-ray
Tube
Heat Dissipation 110W
Total Filtration 2.2 mm Al eq. @ 90kV
Compensation for the Supply Power
Regulations
Automatic
Type Double slit type, Manually operation
Min. X-ray Field Size أ5cm x 5cm @1m SID
Max. X-ray Field Size 35cm x 35cm @ 65cm SID
Laser Pointer Class : ⅢA 5mW Dual Laser
Timer Push button illuminator with 30 sec timer
Collimator
with
Laser Pointer
Lamp 5mW Dual Laser X 4EA
APR 15EA(Compounding of 5 keys)
Net Weight 6.8kg(15lbs)
INPUT AC 100V~240VBattery charger
OUTPUT DC 16.8V, 1.5A

Product Manual: VET-20BT Poskom Co., Ltd.
11
6.2 Dimension
1) Main Body
2) Carrying Case

Product Manual: VET-20BT Poskom Co., Ltd.
12
6.3 Tube Specifications
1) General Data
A. Model name(Manufacturer): OX-70 (C.E.I)
B. kV scope(Max. kV): 50 – 100kV
C. Focal spot size: 1.2mm
D. Heat Storage: 10kHU
E. Cooling rate: 248W
F. Inherent Filtration: 0.5mmAl
G. Target angel: 19°
2) Filament Feature Curve
3) Max. Output Table

Product Manual: VET-20BT Poskom Co., Ltd.
13
4) Anode Thermal characteristics
5) Dimension

Product Manual: VET-20BT Poskom Co., Ltd.
14
7. Name of Each Part
7.1 OP Consol and Panel Display
[1] kV up/down Switch [7] Wait LED
[2] mAs up/down Switch [8] On / Off Switch
[3] APR Store Switch [9] Battery Leftover Display
[4] Laser Pointer Switch [10] APR Select Switch
[5] Ready LED [11] Reverse Display
[6] Exposure LED [12] Fast Exposure Switch
1
7
3
11
8
5
6
10
9
2
4
12

Product Manual: VET-20BT Poskom Co., Ltd.
15
DIAGNOSTIC X-RAY UNIT
MODEL: VET-20BT
SerialNo: DATE:
INPUT Rating: 16V 1.5A CAUTION - See
accompanying
Rating: X-ray Tube Voltage: 50-90kV documents
X-ray current: 8-20mA
Total filtration: Min 2.5 mmAl
(Tube: 0.5 mmAl, Al Filt: 2.0mmAl)
X-ray Tube (C.E.I), Model: OX/70 Serial No:
Focal spot: 1.2mm x 1.2mm POSKOM
Room 405, Unitech Ville Venture town, 1141-2, Baekseok-dong,
Ilsandong-gu, Goyang-si Gyeonggi-do 411-722, Korea
Take adequate Precautions to prevent the possibility of any persons
carelessly exposing themselves or others to radiation.
7.2 Product Label
HIGH VOLTAGE TANK
MODEL:VET-20BT SerialNo: DATE:
Tube Model: OX/70, C.E.I Tube Serial No:
Focal spot: 1.2mm x 1.2mm
Inherent Filtration: 0.5mmAl
Rating: MAX. 90kV, 15mA, 80kV, 20mA
POSKOM
Room 405, Unitech Ville Venture town, 1141-2, Baekseok-dong,
Ilsandong-gu, Goyang-si Gyeonggi-do 411-722, Korea
Warning: Electric shock hazard do not remove cover
Reserve Servicing to qualified personnel.
Warning: This X-ray unit maybe dangerous to patient and operator
unless safe exposure factors and operation instruction are observed
BEAM LIMITING DEVICE (COLLIMATOR)
MODEL: Laser Collimator Serial No:
Input Rating: 5V 5mW
Min. X-ray field size: Below 5m x 5m at SID 100cm
Max. X-ray field size: Below 35cm x 35cm at SID 65cm
POSKOM
Room 405, Unitech Ville Venture town 1141-2, Baekseok-dong,
Ilsandong-gu, Goyang-si Gyeonggi-do 411-722, Korea

Product Manual: VET-20BT Poskom Co., Ltd.
16
8. Operation Standard Mode
8.1 Preparation
1) Wear a lead apron for x-ray exposures.
2) Leave at least 2 meters away from the unit or use extended hand switch cable in order to
keep safe distance.
3) Apply proper beam size and technical values to produce the best radiographic results while
minimizing exposure dose.
4) Be careful about the decimal point on the mAs display in order to acquire intended mAs
values.
5) For the indoor radiography for the patient in the bed, ask visitors to leave the room for a
while and keep safe distance from the patient.
6) Pay attention to proper management of the equipment and careful maintenance.
7) Cumulative radiation dose should not exceed the recommended amount. Ask the guide and
advice of experts for the requirement of additional protective devices at frequent use of high
kV and mAs.
WARNING
Please check if the voltage and current of the power supply observe the
specifications written on the system labels, attached to backside of machine
body. The levels of voltage should move within ±10% of the standard values.
CAUTION
Please check up all the line connections before the operation and x-ray
exposures of machine.
8.2 Collimator Check-up
A. Place the loaded cassette on the patient’s backside.
B. Arrange the SID (Focal Spot to Image Receptor Distance) with measuring tape.
C. Light on the collimator lamp and laser pointer with “lamp on/Store” switch.
D. Arrange the beam size according to the scale of x-ray film with the collimator knob.
E. Collimator and laser pointer are turned off automatically by a timer.
.

Product Manual: VET-20BT Poskom Co., Ltd.
17
8.3 Preheat
1) Overview
All portable x-ray units require preheat procedure to protect the x-ray tube from an instant surge
of current and to secure long and safe operation of the system. Preheat of x-ray tube is required
under following situation.
A. Initial use or installation.
B. Non-use of the equipment over 1 month at low temperature
C. Temperature of x-ray tube is below 0 (32℃℉). (Cold tube)
2) Method to Preheat
Following preheat procedure is recommended.
A. Install the equipment at a safe place for radiation.
B. In case outdoor temperature is below 0 (32 ), m℃℉ove the equipment indoor and warm it up.
C. In order to preheat filament of x-ray tube, exposure x-rays in 15 second time intervals.
First:3 exposures serially at low value ( 50 kV, 0.4 mAs)
Second: 3 exposures serially at high kV ( 60 kV, 1.2 mAs)
Third: 3 exposures serially at max. kV ( 80 kV, 2.0 mAs)
CAUTION
During X-ray exposure, the equipment makes a beep.
After X-ray exposure, on ‘Wait’ mode, you are not supposed to push ‘Exposure’
button..

Product Manual: VET-20BT Poskom Co., Ltd.
18
9. Operation Mode
9.1 General Mode
A. Open the carrying case
B. Connect Hand Switch to VET-20BT main body.
CAUTION
Other parts except provided parts from POSKOM
(ex. Adaptor, Hand switch etc) cannot be used to this equipment.
C. After turning on, you can see below display.
D. Wait LED is on while charging ‘Ultra Capacitor.
E.Select kV value with kV up/down switch. As you keep pushing it, up/down speed would be
getting faster.
F. Select mAs value with mAs up/down switch.
G. After positioning, push 1’st step of Hand Switch and make the unit ready for the exposure.
H. When ‘Ready’ LED is ON, push 2’nd step of Hand Switch and exposure.
During the Exposure, X-ray LED would be ON.
I. After the exposure, if Capacitor charging is necessary, Wait LED would be ON.

Product Manual: VET-20BT Poskom Co., Ltd.
19
9.2 APR Mode
A. After turning on, you can see below display.
B. Select 1-5 APR switch. (15EA APR available)
1, 1+2, 1+3, 1+4, 1+5, 2, 2+3, 2+4, 2+5, 3, 3+4, 3+5, 4, 4+5,5
C. Select kV value with kV up/down switch.
D.Select mAs value with mAs up/down switch.
E. Store selected kV/mAs value by pushing ‘STORE’ button.
F. After positioning, make the equipment ‘Prep Mode’ by pushing Hand switch 1’st step.
G. When ‘Ready’ LED is ON, push Hand switch 2’nd step and expose.
During Exposure, X-ray LED is ON.
H. After exposure, when Capacitor charge is necessary, Wait LED is ON.
I. As you push APR switch again, it goes back to Normal Mode.
CAUTION
When selecting APR Mode, latest memory is remembered and displayed.

Product Manual: VET-20BT Poskom Co., Ltd.
20
10. Remote Control Function & Operation
10.1 Introduction
Medical practitioners arrange kV, mAs setting and APR functions by pushing down buttons on the
display panel most of the time. Selection of each function and mode follows anatomical or
radiological guidelines. Collimator lamp and laser pointer are lighted on by ‘Lamp on/Store button’
and lighted off automatically by a timer.
Many users in the field have asked to study more efficient ways to arrange technical settings of kV,
mAs, APR selection and x-ray exposures. Traditional method of operation had high possibility of
fumbling the equipment or hand switch on the ground during adjustment of technical parameters
on the panel.
Therefore, our R&D staffs have renovated our programmed software and x-ray ready operation
that all technical parameters, collimator lamp and laser pointer can be adjusted by hand switch
controls.
Hand switch remote controller is composed of two stages. The first stage of hand switch is ready
and the second stage of hand switch is exposure.
Every function of Remote control is, as explained above, operated by pushing Hand switch in
‘Prep Mode’. Each Remote Control function and exposure value selection is as below.
(Fig 1)
1Ste
p
Switch = Ex
p
osure Read
y
Switch
2 Ste
p
Switch = Ex
p
osure
Hand Switch Holder