Medica EasySampler User manual

Cat. No. 2285 R3

EasyLyte

Service Manual

\EDIC@

Na/K

Na/K/Cl

Na/K/Li

Analyzers, Serial Numbers 5000 and above

EasySampler

Information contained herein is believed by Medica to be accurate; in any event, no responsibility, whether express or implied, is assumed hereby

by Medica for or in connection with the use thereof, or for infringement of any third party rights which might arise therefrom, or from any represen-

tation or omissions contained therein. Information is subject to change and/or updating without notice.

Flow Chart

Yes

Yes No

CALIBRATE NOW?

ANALYZE BLOOD?

DAILY CLEANER?

STANDBY MODE?

✽SECOND MENU?✽

✽ SEE RESULTS? ✽

✽ PACK USAGE? ✽

✽ QUAL CONTROL? ✽

✽ OPER FUNCTS? ✽

✽ DIAGNOSTICS? ✽

✽ DATE/RANGES? ✽

Whole Blood, Serum, or Plasma Analysis

End of Day Cleaning

Fluid Conservation, Maintenance

Stored Results Displayed, Printed, Deleted

Check % Pack Usage, Install New Pack,

Reset % Countdown

Run Controls, See Last Control,

See/Print Statistics, Delete Results

"On Demand" Calibration, Wash, Solutions Purge,

User Options, Probe Wiping, I.D.#, Syringe Sample,

Set Correlation,Vet Mode, Select Language,

AutoSampler, Printer Off

Check: Calibration Values

Electrode Values

Fluid Flow

Sample Detector

Pump Calibration

Change Day/Time, AutoCal,

Set Na/K/Cl/Li Ranges

Yes No

✽ ANALYZE URINE? ✽

Urine Analysis

Service Manual Contents

Product Description

Product Overview ..........................................................................................................................1

System Overview ..........................................................................................................................1

Table of Symbols ..........................................................................................................................2

Front Assembly Components ......................................................................................................3

Front Assembly Components – Analyzer Series below 6100 ....................................................7

Electrode Housing Components ................................................................................................11

Rear Assembly Components ....................................................................................................12

Replacement List ........................................................................................................................13

Troubleshooting

Troubleshooting Overview ..........................................................................................................15

Troubleshooting Guide ................................................................................................................16

AC Power Verification ................................................................................................................17

DC Power Verification ................................................................................................................20

Display Verification ......................................................................................................................21

Probe Motor Verification..............................................................................................................22

Pump Motor Verification ..............................................................................................................23

Printer Verification ......................................................................................................................24

Sample Detector Verification ......................................................................................................25

Signal Input Verification ..............................................................................................................26

Serial Communication Verification ..............................................................................................28

QC Tests......................................................................................................................................29

Repair

Repair Overview........................................................................................................................33

Tools ..........................................................................................................................................34

Rear Housing Removal ............................................................................................................35

Rear Housing Installation ..........................................................................................................37

Power Supply Removal ............................................................................................................39

Power Supply Installation..........................................................................................................41

Printer Removal ........................................................................................................................43

Printer Installation ....................................................................................................................47

CPU Board Removal ................................................................................................................50

CPU Board Installation..............................................................................................................54

Display Removal ......................................................................................................................57

Display Installation ..................................................................................................................59

Pump Motor Removal ..............................................................................................................62

Pump Motor Installation ............................................................................................................63

Probe Motor Assembly Removal ..............................................................................................64

Probe Motor Assembly Installation............................................................................................67

Guide Rod Removal..................................................................................................................73

Guide Rod Installation ..............................................................................................................75

Electrode Jack Removal ..........................................................................................................76

Electrode Jack Installation ........................................................................................................77

EasySampler

Product Description ....................................................................................................................79

Assembly and Component Overview..........................................................................................80

Replacement List ........................................................................................................................81

Troubleshooting Guide ................................................................................................................82

Alignment Verification..................................................................................................................83

Tray Placement Verification ........................................................................................................84

Carousel Test ..............................................................................................................................85

Tray Cycle Verification ................................................................................................................86

Sensor Verification ......................................................................................................................87

QC Tests......................................................................................................................................88

Repair Overview..........................................................................................................................90

Recommended Tools ..................................................................................................................90

Housing Removal ........................................................................................................................91

Housing Installation ....................................................................................................................93

Spindle Column Removal............................................................................................................95

Spindle Column Installation ........................................................................................................97

Sensor Removal..........................................................................................................................99

Sensor Installation ....................................................................................................................100

Motor Removal ..........................................................................................................................101

Motor Installation ......................................................................................................................103

PC Board Removal ..................................................................................................................105

PC Board Installation ................................................................................................................107

Specifications

Product Specifications ..............................................................................................................109

EasySampler Specifications ....................................................................................................110

Appendix

Display Messages......................................................................................................................111

QC TEST? Flowcharts ..............................................................................................................118

Schematics

CPU Board

CPU Board – Analyzer Series below 6100

Power Supply – Analyzer Series below 6100

Transformer Assembly

EasySampler PCB

Product Description 1

Product Overview

The EasyLyte analyzer is a direct measurement ion-selective electrode (ISE) system which uses

Sodium (Na), Chloride (Cl), Potassium (K), and Lithium (Li) sensitive components to measure

electrolytes in either whole blood, serum, plasma or urine.

The analyzer software allows the operator to perform sample analysis, analyzer diagnostics and

maintenance by simply pressing the "YES" or "NO" buttons in response to prompts displayed on

the LCD screen. The EasyLyte analyzer performs the analysis both quickly and cost effectively.

Analysis takes only one minute and utilizes approximately one hundred microliters of whole

blood, serum or plasma; or four hundred microliters of diluted urine.

The analyzer can re-calibrate automatically every four hours and can perform emergency (STAT)

analysis on demand. Results are always displayed on the LCD screen and can also be docu-

mented on paper by an integrated printer.

The analyzer contains a patented reagent system including a modular reagent pack. This pack

provides a minimum of two months supply of solution and also serves as a waste receptacle for

solution and samples after analysis.

System Overview

The EasyLyte analyzer is engineered to make local service feasible. Modular construction is

used throughout the design. The basic operating system consists of a motor which drives a peri-

staltic pump. The peristaltic pump pulls the desired fluid through the system, disposing waste into

a designated compartment inside the solutions pack. A second motor drives a lead screw which

in turn drives a mechanical link-arm assembly. This link-arm assembly moves the sample probe

vertically allowing the probe inside the solutions valve to aspirate the appropriate fluid for pump-

ing: sample; standards; or air. The sample detector in the fluid line positions the fluids.

Please note that mechanical and electrical assemblies can be replaced. Follow the instructions in

the TROUBLE SHOOTING SECTION to determine if assembly replacement is necessary. Refer

to the Replacement List in this section which lists replaceable assemblies, components, and

appropriate catalog numbers.

If repair to any electrical assembly is necessary, consult Schematics in the APPENDIX

SECTION for further detail. Service personnel are encouraged to contact Medica directly with

any problems or concerns relating to electrical assemblies.

2 Product Description

NOTES Helpful information or references to other related

sections of the manual.

KEY INFORMATION Could take the EasyLyte analyzer out of operation.

WARNING Possible biological hazard to the operator.

EASYLYTE ANALYZER’S

Information for EasyLyte analyzers with serial num-

bers

BELOW 6100

below 6100.

ELECTRICAL HAZARD Possible electrical hazard to the operator.

Table of Symbols

6100

Product Description 3

Front Assembly Components

This section describes the main assemblies and components of the EasyLyte front assembly.

Refer to Figures P1, P2, and P3 for the location of each component.

Front Housing front case of the analyzer

Power Supply Assembly powers the analyzer

Entry Module connection for the power cable

Fuse Bay holds 2 fuses

Power Supply Cable connects the power supply to the CPU assembly

Voltage Selector Switch to select 110V or 220V power source

CPU Assembly contains the CPU board with digital components and analog sensor inputs

Firmware (EPROM) contains the software

Interface Ports for EasySampler and RS-232 for serial devices

Display Assembly shows EasyLyte prompts/results on LCD screen

LCD Screen available in 1- line or 2- line display

Display Cable connects the display to the CPU assembly

Sample Detector Cable connects the sample detector to the display board

Pump Assembly peristaltic pump to move fluids through the analyzer

Pump Motor powers pump

Pump Head Assembly contains pump body, rollers

Pump Motor Cable connects the pump to the CPU assembly

Probe Motor Assembly moves the probe arm

Probe Motor with Lead Screw powers lead screw

Mounting Bracket holds probe lead screw motor assembly in place

Probe Position Sensor positions the probe position scale

Sensor Cable connects the sensor to the CPU assembly

Probe Position Scale positions the probe arm

Probe Motor Cable connects the motor to the CPU assembly

Printer Assembly prints a hard copy of analysis, diagnostics or maintenance results

Printer Cable connects the printer to the CPU assembly

Probe Arm holds and moves the probe to aspirate samples and calibrants

Guide Rod allows probe arm to move vertically

Electrode Jack(s) connects electrodes to the CPU assembly

4 Product Description

Figure P1 Front Assembly Back View

Printer Assembly

CPU

Assembly

Power Supply Assembly

AUTOSAMPLER

P3 P1 P2 P4 P13

P6

Power Supply

Cable

Printer Cable

Pump Motor

Cable

Sensor

Cable

Probe

Motor Cable

Display Cable

Front Housing

Display

Assembly

Sample

Detector Cable

Probe Position

Sensor

Probe Position

Scale

Electrode Jack(s)

Firmware

(EPROM)

Interface Ports

Voltage Selector

Switch

Entry Module

Fuse Bay

Product Description 5

Figure P2 Front Assembly - Right Side View

Front Housing

Probe

Motor

Assembly

Mounting

Bracket

Probe

Position Scale

Probe

Motor

Guide Rod

Lead Screw

Display Cable

Printer Assembly

Probe Arm

6 Product Description

Figure P3 Front Assembly - Left Side View

Front Housing

Pump Head

Assembly

LCD Screen

Pump

Assembly

Pump Motor

Display Cable

Printer Cable

Product Description 7

Front Assembly Components – Analyzers Series Below 6100

This section describes the main assemblies and components of the EasyLyte front assembly,

analyzer series below 6100. Refer to Figures P4, P5, P6 for the location of each component.

Front Housing front case of the analyzer

Power Supply Assembly powers the analyzer

Entry Module connection for the power cable

Fuse Bay holds 2 fuses

Power Supply Cable connects the power supply to the CPU assembly

Voltage Selector Switch to select 110V or 220V power supply

CPU Assembly contains the CPU board with digital components and analog sensor inputs

Firmware (EPROM) contains the software

Interface Ports for EasySampler and RS-232 for serial devices

Display Assembly shows EasyLyte prompts/results on the LCD screen

LCD Screen available in 1-line or 2-line display

Display Cable connects the display to the CPU assembly

Sample Detector Cable connects the sample detector to the display board

Pump Assembly peristaltic pump to move fluids through the analyzer

Pump Motor powers pump

Pump Head Assembly contains pump body, rollers

Pump Motor Cable connects the pump to the CPU assembly

Probe Motor Assembly moves the probe arm

Probe Motor with Lead Screw powers lead screw

Mounting Bracket holds probe lead screw motor assembly in place

Probe Position Sensor positions the probe position scale

Sensor Cable connects the sensor to the CPU assembly

Probe Position Scale positions the probe arm

Probe Motor Cable connects the motor to the CPU assembly

Printer Assembly prints a hard copy of analysis, diagnostics or maintenance results

Printer Cable connects the printer to the CPU assembly

Probe Arm holds and moves the probe to aspirate samples and calibrants

Guide Rod allows the probe arm to move vertically

Electrode Jack(s) connects electrode to the CPU assembly

6100

8 Product Description

Figure P4 Front Assembly Back View

– Analyzers with Serial Numbers below 6100

6100

Printer Assembly

CPU

Assembly

Power Supply Assembly

AUTOSAMPLER

P3 P1 P2 P4 P13

P6

Power Supply

Cable

Printer Cable

Pump Motor

Cable

Sensor

Cable

Probe Motor

Cable

Front Housing

Display

Assembly

Sample

Detector Cable

Probe Position

Sensor

Probe Position

Scale

Electrode Jack(s) Display Cable

Entry Module

Fuse Bay

Firmware

(EPROM)

Voltage Selector

Switch

Interface Ports

Product Description 9

Figure P5 Front Assembly Right Side View

- Analyzers with Serial Numbers below 6100

Front Housing

Probe Motor

Assembly

Mounting

Bracket

Probe

Position Scale

Probe

Motor

Guide Rod

Lead Screw

Printer

Assembly

Voltage

Selector

Switch

6100

10 Product Description

Figure P6 Front Assembly Left Side View

– Analyzers with Serial Numbers below 6100

Front Housing

Pump Head

Assembly

LCD Screen

Pump

Assembly

Pump Motor

Display

Cable

Printer

Cable

6100

Product Description 11

Figure P7 - Electrode Housing Assembly

Electrode Housing Assembly Components

This section describes the components of the EasyLyte electrode assembly. Refer to Figure P7

for the location of each component.

Electrodes sodium, potassium, chloride, lithium, reference

Sample Detector detects presence of air/liquid, sets sample position inside electrodes

Internal Filling Solution 2 molar KCI solution, acts as 'salt bridge’ with reference electrode

Fill Plug prevents the internal filling solution from evaporating

Membrane Assembly connects reference electrode with other electrodes

Fill Plug

Sample Detector

Chloride Electrode

(Green Dot) or

Lithium Electrode

(Yellow Dot)

Potassium Electrode

(Red Dot)

Sodium Electrode

(Blue Dot)

Internal Filling

Solution

Reference Electrode

Membrane Assembly

12 Product Description

On EasyLyte Analyzers with serial numbers below 6100 the voltage selector is located

inside the front housing on the power supply.

Figure P8 - Rear Assembly

Rear Assembly Components

This section describes the components of the EasyLyte Rear Assembly. Refer to Figure P8 for

the location of each component.

Rear Housing rear case

Label identifies serial number

Autosampler

Port

Serial

Port

Power Cord

Entry Module

Label with

Serial Number

Voltage

Selector

Switch

Rear Housing

6100

Product Description 13

Replacement List

Consumable and assemblies items can be purchased directly from Medica.

CONSUMABLE ITEMS

Description Catalog No.

Na Electrode 2102

K Electrode 2101

Cl Electrode 2113

Li Electrode 2106

Reference Electrode 2103

Sample Detector 2257

Sample Probe 2107

Solutions Valve 2108

Fill Plug 0195

Membrane Assembly 2258

Tubing Kit 2104

EasyLyte Operator's Manual 2277

ASSEMBLIES

Description Part No.

Electrode Housing Na/K/Cl 000885

Electrode Housing Na/K/Li 000985

Electrode Housing Na/K 000177

Power Supply 001676

with CPU 001937

or CPU (Japanese or Chinese software) 001957

Power Supply 001287

with CPU 001081

Display, 1 Line 001284

Display, 2 Line 001901

Display, Graphic (Japanese or Chinese characters) 001956

Pump 001271

Probe Motor Assembly 001392

Probe Position Sensor 001306

Motor Driver 001148

– CPU 001937, positions U35, U36

– CPU 001081, positions U22, U23

Printer 001296

Electrode Jack 000173

The EasyLyte CPU Assembly has ten (10) variations:

EasyLyte Lithium, 1-line display 001937-003

EasyLyte Chloride, 1-line display 001937-004

EasyLyte Lithium, 2-line display 001937-005

EasyLyte Chloride, 2-line display 001937-006

EasyLyte Na/K, 1-line display 001937-007

EasyLyte Na/K, 2-line display 001937-008

EasyLyte Na/K, Chinese 001957-001

EasyLyte Na/K/Cl or Li, Chinese 001957-002

EasyLyte Na/K, Japanese 001957-003

EasyLyte Na/K/Cl or Li, Japanese 001957-004

The CPU Part Numbers include the EasyLyte CPU Board with software installed, programmed

to operate specifically in EasyLytes described as above. When ordering this item, please list the

specific part number (-003, -004, -005, etc.) that you require.

CPU series 001957 functions correctly only when used with the Graphic Display (displays

Japanese or Chinese characters), part number 001956.

Please note that EasyLyte Analyzers with serial Numbers below 6100 are assembled

using Power Supply, 001287 and CPU, 001081. These two items work together as a

set. Power Supply, 001676 and CPU, 001937 also work together as a set. These parts

cannot be mixed on the EasyLyte.

14 Product Description

6100

Troubleshooting 15

Troubleshooting Overview

This section describes troubleshooting the mechanical and electrical functions of the EasyLyte

analyzer. This section is based on the principle of replacing suspected faulty assemblies with

new assemblies. Medica recommends keeping an inventory of functioning test assemblies

for troubleshooting the EasyLyte. Refer to the Troubleshooting Guide in this section to deter-

mine the cause and corrective action that must be taken to properly service the EasyLyte

Analyzer.

Since EasyLyte Analyzers with serial numbers below 6100 are assembled using Power

Supply, part no. 05001065 and CPU, part no. 05001063 the troubleshooting instructions

differ in certain areas. Please refer to the serial number, located on the back panel of the

analyzer, to identify which instructions to follow.

For information on troubleshooting the EasyLyte Analyzer flow system and consumable items,

consult the EasyLyte Operator’s Manual. See the Replacement List in the PRODUCT

DESCRIPTION SECTION of this manual for a complete listing of all consumable items and cata-

log numbers. For information on troubleshooting the EasyLyte EasySampler consult

Troubleshooting in the EASYSAMPLER SECTION.

6100

16 Troubleshooting

Troubleshooting Guide

Refer to the chart below to help determine the problem and corrective action needed.

Problem Description Problem Source Corrective Action Steps

Blank Display Power Malfunction or • AC Power Verification

Defective Display • DC Power Verification

• Display Verification

No response Power Malfunction or • Display Assembly Verification

to YES/NO buttons Defective Display • DC Power Verification

Blank Display, Faulty EPROM Installation • Inspect EPROM Intallation

Beeping or Power Malfunction • DC Power Verification

“MTS” Errors Probe Motor • Probe Motor Verification

Malfunction

“MTP” Errors or Pump Motor • Perform PUMP CAL test

No Pump Movement Malfunction in DIAGNOSTICS? Menu

• Pump Motor Verification

Printer Does Not Print Printer Malfunction • Printer Verification

Sample Detector Test Failure Sample Detector/Circuit • Sample Detector

Result 255 or Ø Malfunction Verification

Bad Electrode Voltages Electrodes or • Check Electrode Installation

Signal Input Malfunction and Performance

• Signal Input Verification

Serial Transmission Failure Serial Cable or • Serial Communication

Transmission Protocol Verification

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