Contect SP800 Service manual
Infusion Pump
SP 800
Service Manual
Contect Medical Systems . CO.LTD
I
Foreword
Introduction
This Operator's Manual provides a detailed introduction of the hardware components, installation,
dismantling, testing and troubleshooting of this product and its parts, which may effectively help
repair staff handle commonly seen problems. It does not provide in-depth information on the
structure and design of the product. If you experience problems that cannot be solved, please contact
our after-sale service department.
Information in this Operator's Manual is based on a fully configured product, some of which may
not be applicable to the product you're repairing. If you have any questions, please contact our aftersale service department.
Before carrying out any repair work, please ensure that you can properly repair the product by
carefully reading and fully understanding the content of this Operator's Manual. This way, damage
to the product or physical injuries may be avoided.
For use by:
Professional biomedical engineers responsible for the maintenance of this product, authorized
repair staff or after-sale service representatives.
Version Information
The version number of this Operator's Manual may be updated without notice at any time due to
changes in software or technical specifications. The version information of this Operator's Manual
is as follows.
◼ Version No.: 2.0
◼ Time of Publication: 2013-11
1
Contents
Chapter 1 Safety .................................................................................................................... 1
1.1 Safety Information ................................................................................................ 1
1.1.1 Dangers ......................................................................................................... 2
1.1.2 WARNING .................................................................................................... 2
1.1.3 CAUTION ..................................................................................................... 3
1.1.4 NOTE ............................................................................................................ 3
1.2 Equipment Symbols .............................................................................................. 4
Chapter 2 Design ................................................................................................................... 5
2.1 Description ............................................................................................................ 5
2.2 System decomposition .......................................................................................... 5
2.3 Hardware configuration......................................................................................... 7
2.3.1 Control Board ................................................................................................ 8
2.3.2 Pump body .................................................................................................... 9
2.3.3 Control Board .............................................................................................. 10
2.3.4 Bubble pressure board ................................................................................. 11
2.3.5 Door-opening detection board ..................................................................... 12
2.3.6 Drop rate sensor .......................................................................................... 12
Chapter 3 Testing and maintenance ..................................................................................... 13
3.1 Description .......................................................................................................... 13
3.1.1 Testing report............................................................................................... 14
3.1.2 Recommended frequency ............................................................................ 14
3.2 Visual inspection ................................................................................................. 15
3.3 Startup test ........................................................................................................... 15
3.4 Infusion Flow test ................................................................................................ 16
3.5 Pressure sensor test ............................................................................................. 17
3.6 Battery performance test ..................................................................................... 18
3.7 Electrical safety test ............................................................................................ 19
3.7.1 Housing leakage current test ....................................................................... 20
3.7.2 Patient leakage current test .......................................................................... 20
3.8 Cleaning and Disinfection ................................................................................... 21
Chapter 4 Common failures and Troubleshooting ............................................................... 23
4.1 Overview ............................................................................................................. 23
4.2 Components replacement .................................................................................... 23
4.3 Common failures and Troubleshooting ............................................................... 24
2
Chapter 5 Maintenance and Disassembly ............................................................................ 27
5.1 Tools .................................................................................................................... 27
5.2 Preparation for disassembly ................................................................................ 27
5.3 Disassembly procedure ....................................................................................... 28
5.3.1 Separate the front and rear housing ............................................................. 28
5.3.2 Disassembly of Control Board .................................................................... 30
5.3.3 Removal of the Pump body ......................................................................... 31
5.3.4 Remove the Sensor board and Pressure sensor ........................................... 35
5.3.5 Change the battery ....................................................................................... 36
Chapter 6 Components......................................................................................................... 37
6.1 Host components ................................................................................................. 37
6.1.1 Main parts lists ............................................................................................ 38
6.2 Pump Body Assembly ......................................................................................... 39
1
Chapter 1 Safety
1.1 Safety Information
The safety statements presented in this chapter refer to basic safety information that the
operator must pay attention to and abide by during maintenance operations of the infusion
pump. There are additional safety statements in other chapters or sections, which may be the
same as or similar to the following, or specific to particular operations.
DANGERS
⚫ Indicates an imminent hazard that, if not avoided, could result in death, serious
injury or damage to product/property.
WARNING
⚫ Indicates a potential hazard or unsafe maintenance practice that, if not avoided,
could result in death, serious injury or damage to the product/property.
CAUTION
⚫ Indicates a potential hazard or unsafe maintenance practice that, if not avoided,
could result in minor personal injury, product malfunction or damage to
product/property.
NOTE
⚫ Provides application tips or other useful information to ensure that you achieve
better maintenance of the product
2
1.1.1 Dangers
DANGERS
⚫ The infusion tube must be installed straight and level in the bottom of the groove
on the infusion pump.
1.1.2 WARNING
WARNING
⚫ Only authorized professional maintenance technicians can disassemble the
Infusion pump; Pump maintenance and upgrades must be carried out by
maintenance technicians trained and licensed by the manufacturer.
⚫ To prevent fire or explosion, do not operate this infusion pump in the presence of
anesthetic, flammable or explosive materials.
⚫ This infusion pump belongs to Class II (type of electric shock protection); the
supplied Type I power cord PE earth terminal should not be used as ground
protection and functional earthing.
⚫ The packaging materials must be disposed of in compliance with local laws and
regulations or the hospital policy on waste management. They must be kept out
of the reach of children.
3
1.1.3 CAUTION
CAUTION
⚫ Electromagnetic fields may influence the performance of the infusion pump.
Therefore, equipment or devices used in the vicinity of the infusion pump must
meet the EMC standard. Mobile phones, X ray and MRI equipment are all
potential interference sources because of their high-intensity electromagnetic
radiation.
⚫ Avoid exposing this infusion pump to high-pressure sterilization or chemical
materials.
⚫ Before the infusion pump is connected to the power supply, make sure the
voltage and frequency of the power supply comply with the label on the pump or
the specific requirements outlined in this Operator’s Manual.
⚫ In the maintenance process, please pay attention to protect the pump from
damage from drops, impacts, violent shaking or other external mechanical
forces.
1.1.4 NOTE
NOTE
⚫ For detailed operating instructions and other information about the infusion
pump, please refer to the Operator's Manual.
⚫ This Service Manual describes all the settings and functions of the infusion
pump in its most complete functional configuration. The infusion pump you are
handling may not have some of the settings or functions described herein.
⚫ Do not insert devices that are not specified by the manufacturer into the data
ports.
4
1.2 Equipment Symbols
Attention! Refer to the
manual
Class II equipment
Class BF device
IP21
Splash-proof
Alternating current power
supply (AC)
Direct current power
supply (DC)
Batch number
Serial number
Date of manufacture
Manufacturer
Electronic equipment:
dispose of separately to
avoid polluting the
environment
Wireless transceiver
Up or increase value
Down or decrease value
Confirm
Set Stop
Cancel alarm
Start
Bolus
Clear
Select
Turning on the pump
Turning off the pump
Decimal point
Protect from rain during
transport
Fragile item, handle
with care
Keep upright during
transport
Maximum stack height
without additional
CE marked product, complies with EU directive MDD 93/42/EEC and
annex I thereof.
5
Chapter 2 Design
2.1 Description
This infusion pump is for use in wards, operating theaters, and observation rooms for
accurate and continuous infusion to patients.
2.2 System decomposition
The system is decomposed according to Machinery, Hardware and Software three aspects,
with the composition chart as follows:
System
Hardware
Software
Control Board
Sensor Board
System software
Driver software
Bubble pressure board
driver
Drop sensor
Battery
Drop sensor
Door-opening
detection board
Front housing
assembly
Pump
assembly
Rear housing
assembly
Machinery
6
System Board connection diagram is as follows:
Bubble pressure
board
Control Board
FPC1
Stepper motor
CN1
Loudspeaker
Battery
PS5
P1
Qpyl
1
CN2
P_TX1
P_RX1
Ultrasonic
emission
Ultrasonic
reception
Door-opening
detection board
Pressure
sensor
P_Gate
PYL_1
Flash2
Drop
sensor
Display screen
7
2.3 Hardware configuration
Functional block diagram:
AC
The core of the system is the Control Board. Screen display and power supply is carried out by
Control Board; measurements and status information for each module are sent to the Control
module after treatment in the Driver module, and finally displayed on the computer screen by
Control Board; Control Board is also responsible for controlling Buzzer and Status indicator
lights. Current supply for all the modules are provided by the Power Board; the Driver module
is also responsible for driving of the motor, measurement of each sensor and integrated
treatment of the status information.
Driver module
Control module
Bubble pressure
board
Battery
Stepper motor
Battery
cover
plate
Serial
Communication
3.3V/5V
Current supply
5V Current
supply
Serial
Communication
8
2.3.1 Control Board
Control Board is information integration of the entire system, providing resources and support
for the entire system. It controls the LCD, keypad input, buzzer sounds and set the parameter's
storage capabilities.
2.3.1.1 Functional block diagram
2.3.1.2 Function introduction
➢ Control Board makes communications with the Power module or the ZIGBEE
wireless module on the Control Board through the serial ports of the logical gate
circuit extension modules;
➢ Control Board provides display information for the display screen, and detects key-
press to implement user interface;
➢ Control Board controls the Buzzer to realize the function of alarm tone and
key tone;
➢ Control Board controls running of the indicator light via the logical circuit;
➢ SRAM realizes data staging and procedures operation, and EEPROM serves as
machine configuration memory.
MCU
EEPROM
Display
Keys
SRAM
Logical gate circuit
Buzzer
Run_LED
5V
3.3V
Serial port1: Power Board
Serial port2: ZIGBEE
wireless module
9
2.3.2 Pump body
Pump body device is the power provider of the whole system and the power source for liquid
transportation. During work, the stepper motor driven camshaft rotation makes the pump
moving up and down according to a certain order and motion law, such as waves to squeeze
the intravenous infusion tube, and let the fluid inside make a directional flow at a certain speed.
Functional schematic diagram
Tube
Pump tablet
10
2.3.3 Control Board
Control Board synthesizes the functional information detected from Bubble pressure board and
then sends it to CPU, and it also sends an information to drive the stepper motor. Control Board
also converts the input power (including mains and battery) into the power required for each
board, and supports the battery charging simultaneously.
2.3.3.1 Functional block diagram
AC/DC
Switching
power supply
Boost
Circuit
LDO
MCU
Charging
Circuit
Battery
Driver
Circuit
Logical
gate circuit
Power-on
Circuit
Motor
Detection
circuit
5V
7.4V
12V
18.9V
AC
Input
Serial port
3.3V
Stepper motor
Enable input
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