1
Service Manual
for CS-T240 Auto-Chemistry Analyzer 2
Content
Content..............................................................................................................................................2
Chapter Ⅰ Instrument Specification...............................................................................................3
Chapter 2 Installation......................................................................................................................10
Chapter 3 Performance and Test Flow ............................................................................................13
Chapter 4. Module Introduction................................................................................................22
Chapter 5. Instrument liquid and Air Line ......................................................................................34
Chapter 6 Instrument Hardware Circuit..........................................................................................42
Chapter 7 Maintenance ...................................................................................................................57
Chapter 8 Analysis methods……………………………………………………………………….75
Chapter 9 Malfunction Analysis....................................................................................... 87 3
Chapter Ⅰ Instrument Specification
1.1 CS-T240 Model Specification
1.1.1 Product Composition:
The analytical part (host), operation part (computer system), the result output part, accessories and
consumables.
Product applicable scope: used for quantitative analysis of serum, plasma, urine, cerebrospinal
fluid and other clinical chemical constituents of sample.
4
1.1.2 Front ① ②
① Model Logo
② Upper Cover
③ Front Cover
③
1.1.3 Rear
① Purified Water Inlet
② Low Concentrate Waste Outlet
③ High Concentrate Waste Outlet
④ Detergent Inlet
⑤ Detergent Level Sensor Port
⑥ Left Back Cover
⑦ Syringe Pump
⑧ Right Back Cover
⑨ RS232 Port
① ②③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ 5
1.1.4 Working Table
① Reaction Cuvette Rinsing Unit
② Reaction Disk Unit ① ② ③④⑤ ⑥
③ Reaction Tank Liquid Level Detection
④ Stirring Unit
⑤ Sample &Reagent Adding Unit
⑥ Sample & Reagent Disk
⑦ Mixer Rinsing Tank
⑧ Probe Rinsing Tank
⑦ ⑧
1.1.5 Rightside
① Main Switch
② Power Socket
③ Fuse Installation Place
④ Main Power Indicator(Red)
⑤ Refrigeration Power Indicator(Green)
⑥ Analysis Unit Switch(exclude refrigeration power)
① ② ③ ④ ⑤ ⑥ 6
1.2 Analysis Unit
The working speed of CS-T240 auto-chemistry analyzer is 240 tests / hour at constant speed
(single / double-reagent item), whose working period is 15 seconds. Instrument overall structure
adopts the project of "2-disks + 1-probe + 1-stirring rod"—one reaction disk, one sample &
reagent disk, one stirring rod, one sample & reagent probe used for adding reagent and sample,
one stirring rod used for mixing. "Grating + diode array" approach is adopted in optical
measurement unit for real-time optical collection of reaction cuvette. The 8-stop 12-step
automatically rinsing of the reaction cuvette is carried out during testing process.
1.2.1 Structure
1.2.2 Reaction Unit
Reaction Cuvette Reaction Disk
Reaction cuvette:120,optical path: 6mm
20×6 sets hard optical plastic cuvette
Incubation bath
Digital liquid sensor
8-stop 12-step rinsing of colorimetric cup
Cleaning pump
A / D conversion and
Log conversion
Pipettor
Stirre Pipetting
system
Interface
Barcode scanner
Incubator
Cleaning system
Potometer 7
1.2.3 Probe and Stirring Unit
Stirring Unit Probe Unit
Probe unit:1
1 sample & reagent probe
High-precision digital liquid detector
Stirring Unit:1
High-speed hollow cup motor
Surface high-intensity Teflon coating
1.2.4 Control unit1
①Circuit panel boxes: 5 panels ① ②
Order: from left to right
ISE control panel(Optional)
Sample reagent disk control panel
Rinsing & stirring control panel
Reaction disk control panel
Main control panel
②Switching Power Supply Box: 3
Order:form outside to inside
+12V(lamp)
+5V(digital circuit)±12V(simulation)
+24V(motor, valve)
③ Circuit panel box power supply interface
④ halogen lamp power supply control interface(+12V)
⑤ Cooling unit power interface(220V)
③ ④ ⑤ ⑥ ⑦
⑥ Fan power interface(220V)
⑦ Solid state relay panel interface(220V)
8
① ② ③ ④
1.2.5 Control Unit 2
Semiconductor refrigeration system:
①+12V refrigerator power
②+5V control panel power
③Fan(15W/220W)
④Control panel(with status indication) 9
1.3 Function Overview
Main work flow:
1. All mechanical moving parts initialization.
2. 3 times water blank measure is implemented after six time automatic rinsing
3. Sample reagent probe assimilates quantitive reagent when it descents to reagent sample disk
after the sample reagent disk rotates to designated R1 reagent position. And then, sample reagent
probe assimilates quantitive sample when it descents to reagent sample disk after the sample
reagent disk rotates to designated sample position.
4. After 8-stop 12-step rinsing, reaction cuvette stops at the sampling position, and sample reagent
probe rotates to reaction disk and descends to reaction cuvette to discharge the mix liquid(reagent
and sample), the reagent 1 and sample adding is finished.
5. Reaction cuvette is stirred immediately when it rotates to R1stirring position.
6. Sample+R1 reagent react in reaction cuvette or temperatured.
7. If it is double reagent item test, sample reagent disk rotates to the designated R2 reagent
position and sample reagent probe descends to sample reagent disk to assimilate quantitive reagent
after a set period (6 mins).
8. The sample reagent probe discharges R2 into reaction cuvette when it rotates to reaction disk.
9. Finishing R2 reagent adding, reaction cuvette is stirred after its one circle (R2 stirring position)
rotation.
10. Reaction cuvette carries out the collection of absorbance data when it passes the optical unit in
every period.
11.The reaction cuvette is rinsed automatically after reaction when passing the rinsing unit, and 15
minutes elapses since sampling to rinsing.
Table 1-3-1 Main Function of Each Unit
Name Main function
Sample reagent probe
unit
Execute sample, reagent assimilation and discharge of all
biochemical items and ISEitems
Sample reagent
disk unit
Total 21 sample positions for carrying all test samples,
standard solution and control, 46 reagent positions for
carrying test reagent and detergent
Reaction disk unit Total 120 reaction cuvettes used as container of reaction
and colorimetry test.
Reagent stirring unit Stirring when reagent is added into reaction cuvette.
Optical
system groupware
Measure 12 wavelength absorbance by grating system
Auto-rinsing unit Rinse reaction cuvette automatically by 8-stop 12-step
ISE unit (optional) Carry out ISE measurement (K、Na、Cl)
Barcode Total 1 for scanning reagent and sample bottles in sample
reagent disk
10
Chapter 2 Installation
2.1 Space Requirement:
To make sure the space of maintenance, operation and repair, please follow the instruction as
below:
● Space between left (right) side of analyzer and the wall should ≥50cm
● Space between rear board of analyzer and the wall should ≥50cm
● Space in front of analyzer should≥100cm
● Make sure there is enough space for waste device and purified water equipment.
2.2 Power supply requirement:
● Power supply: AC220V±22V 50Hz/60Hz
● Power: 650VA
● Circuit breaker: 250V, 20A
A well grounded power supply socket is a must. Large electrical appliance such as air condition,
refrigerator, even cannot use the same socket with analyzer.
△! Warning:
Incorrect grounding may cause electric shock or instrument damage.
Input voltage should conform to requirement. 3KVA-line UPS power supply is advised.
2.3 Environment requirement
● Working temperature: 15℃~32℃
● Relative humidity: 32 %~85%
● Atmospheric pressure: 76kPa~106kPa
● Environment should with no dust, vibration, major noise source and power interference
● Do not put the analyzer in the vicinity of brush motor, flicker fluorescent tube and other
constant on-off electrical equipment.
● Hard and flat ground is a must for the instrument.
● Avoid direct sunlight, do not put the analyzer in front of heat source and wind source
● Keep good ventilation.
△! warning:
Normal running and accurate result can not be guaranteed if instrument works beyond the
requirements mentioned above. 11
Please use air conditioner if the temperature or humidity can not meet the requirement above.
The heat generated during working process by the instrument will be emitted at the rear of the
instrument. Good ventilation should be kept well and ventilation equipment can be adopted if
necessary, but direct air current should be avoided, or inaccuracy of instrument test may be
caused.
2.4 Purified water equipment:
① water should be obtained from tap water pipe
② water conductivity should within 1uS/cm
③ water supply volume should reach 40L/h or more
④ The hydraulic pressure should within 49-343 Kpa
2.5 Instrument Installation Flow:
Make sure the installation place, space, electrical environment, installation room temperature and
purified water equipment can conform to requirements
Make sure instrument installation tools needed are complete and reagent and QC liquid are
enough.
Please check the prepared items according to packing list when open the package; please write
them down on the check report if any missing.
Place instrument in appropriate position, and mount with computer host, display and printer.
Connect water supply and waste liquid outlet equipment.
Infuse CS-anti-bacterial detergent into the 45th position of sample reagent disk.
Check whether the power and data wires are well connected
Install sample reagent probe and reaction cuvette
Check whether the sample reagent probe can move up and down flexibly
Get through the pure water machine, computer host,
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