Arkray PocketChem BA PA-4140 Operating Manual
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Arkray PocketChem BA PA-4140 Operating Manual

Arkray PocketChem BA PA-4140 Operating Manual

Blood ammonia meter
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Summary of Contents for Arkray PocketChem BA PA-4140

  • Page 2 Premise Thank you for purchasing ARKRAY’s blood ammonia meter PocketChem BA PA-4140. This manual contains important information on the functions of the PocketChem BA PA-4140. This manual is issued by ARKRAY, Inc. Read carefully prior to starting up the unit.

  • Page 3: Introduction

    © 2021 ARKRAY, Inc. • It is strictly prohibited to copy any part of this manual without the expressed consent of ARKRAY, Inc. • The information in this manual is subject to change without notice. • ARKRAY, Inc. has made every effort to prepare this manual as best possible. Should you discover anything strange, incorrect or missing, contact your distributor.

  • Page 4: Symbols

    Symbols The following symbols are used in this operating manual and the label on this instrument to call your attention to specific items. For the meaning of symbols indicated on the labels (including the shipping box) not described below, refer to the leaflet included in the package. ...

  • Page 5: Caution Label

    Caution Label This instrument has a caution label on the area that has potential danger. Please learn potential danger warned by this label and observe the precaution described below.  Front Optical unit Optical unit Do NOT touch the optical unit with unprotected hands. Always wear protective gloves when inserting samples or performing maintenance to prevent exposure to pathogenic microbes.

  • Page 6: Installation Precautions

    Installation Precautions Before installing the instrument, read the following items and always take proper safety precautions. Do not install the instrument near Install the instrument on a level, vibration-free sturdy platform. places that store chemicals or near equipment that generates corrosive gas or electrical noise.
  • Page 7 Do not disassemble or modify the Remove the AC adapter when not in use. instrument. If you detect abnormal noise, odors or Keep liquids away from the instrument. smoke, immediately turn off the power and contact your distributor after making sure that the abnormal situation is not continuing.

  • Page 8: Table Of Contents

    Contents 1 Premise ..........i 2 Introduction .
  • Page 9 2-6-1 Measuring with Stopwatch (“F”)..... 2-12 2-6-2 Measuring at 15-/30-second Intervals (“15sec”, “30sec”) ....... . 2-14 2-7 Check Measurement .

  • Page 10: Chapter 1 Before Use

    Serial communication (RS-232C) is included. 1-1-2 Specifications  General Specifications Item Specifications Product Blood Ammonia Meter PocketChem BA PA-4140 Configuration Instrument, accessories, printer (optional) Sample Whole blood Test strip AMMONIA TEST KIT II For the purchase of reagents, consumables or other optional items, contact your distributor.
  • Page 11 Chapter 1 Before Use  Instrument Item Specifications Measurement item Blood ammonia concentration Measurement range 10 to 400 N-µg/dL Measurement principle Test strip, Single wavelength reflectance method Measurement wavelength Single wavelength LED (635 nm) Sample supply method Dropping with pipette Reaction time Approx.

  • Page 12: Measurement Principle

    1-1 Overview  Printer (optional) Item Specifications Printer Thermal line printer Printer paper High color development thermal paper (W58 mm × φ26 mm) Dimensions 125 (W) × 133 (D) × 36 (H) mm Weight 180 g (not including printer paper) Power supply AC adapter 7.5 VDC 3A Power consumption...

  • Page 13: Unpacking

    Chapter 1 Before Use Unpacking Check to see that the PocketChem BA PA-4140 package contains the items listed below. Contact your distributor if any items are missing or damaged. NOTE: • The following items are not included with the instrument: control, purified water, 70% isopropanol, printer, AC adapter, printer paper, protective gloves, cotton swabs, gauze and, soft cloths.

  • Page 14: After-Sales Parts

    1-2 Unpacking 1-2-2 After-sales Parts Power cord Communication cable AC adapter PocketChem printer Item Description Power cord AC adapter Communication cable RS-232C cable PocketChem printer PA-4140 1-5...

  • Page 15: Consumables

    Chapter 1 Before Use 1-2-3 Consumables Check strip set Strip holder Printer paper Tray Stylus pen Item Description Printer paper Check strip set Strip holder Tray Stylus pen PA-4140 1-6...

  • Page 16: Components

    1-3 Components Components Component Description Display Displays measurement results and error codes. (See “1-5 Basic Operations” on page 1-12.) Operator panel Used to start measurement and enter numerical values. (See “1-5 Basic Operations” on page 1-12.) Optical unit Performs measurements. Power input terminal Connects to the special AC adapter.

  • Page 17: Instrument Setup

    Chapter 1 Before Use Instrument Setup Loading batteries or connecting the AC adapter Place batteries in the battery compartment on the bottom of the instrument, making sure to align them properly. NOTE: • Remove the old batteries before placing new ones. •...
  • Page 18 1-4 Instrument Setup Attaching and detaching the printer To use with the printer (sold separately), attach it to the instrument according to the following procedure.  Attaching the printer Align the instrument with the printer and press downward until the instrument clicks into place. Make sure that the top of the instrument and printer are horizontally level with one another and both units are firmly locked to each other.
  • Page 19 Chapter 1 Before Use Loading printer paper NOTE: Cut the end of new printer paper to a straight edge using scissors before loading. Open the printer cover. Printer paper Insert the end of the paper underneath the roller, making sure that the direction of the paper roll is correct. The printer will feed the paper automatically.
  • Page 20 1-4 Instrument Setup  Dealing with a paper jam If a paper jam occurs, press the FEED button while straightening out the jammed paper to remove it. FEED button  Connecting an external device Use the communication cable (RS-232C; sold separately) to connect an external device to the DATA output terminal on the side of the instrument.

  • Page 21: Basic Operations

    Chapter 1 Before Use Basic Operations 1-5-1 Display and Icons Symbol and name Description Memory Appears when a measurement result is reviewed. Patient ID Continuous light: Indicates that the patient ID is displayed. Flashing: Indicates that the patient ID is being set. Continuous light: Indicates that the measurement number is displayed.

  • Page 22: Battery Icon

    1-5 Basic Operations Symbol and name Description Waiting Is lit from start to end of measurement count. Transferring Is lit while measurement results are being transferred to an external device. Printing Is lit while measurement results are being printed. Battery Displays the battery level.

  • Page 23: Operator Panel

    Chapter 1 Before Use 1-5-3 Operator Panel Symbol Description Starts measurement. Confirms the entry. Turns on the power./Turns off the power. Stops measurement. Enters a hyphen (-). Selects a function. Enters numerical values. PA-4140 1-14...

  • Page 24: Chapter 2 Measurement

    Chapter 2 Measurement This chapter describes instructions on how to measure samples and check the status of the instrument (check measurement). Measurement precautions and an example of measurement result printout are also included. Operation Flow Chart 2-1-1 Normal Measurement The following flowchart describes the measurement procedure. Refer to the flowchart to perform measurement at the right time.

  • Page 25: Continuous Measurement

    Chapter 2 Measurement 2-1-2 Continuous Measurement There are two ways to perform continuous measurement: measurement with a stopwatch and measurement at regular intervals (15 or 30 seconds) using the instrument’s countdown timer. REFERENCE: • Up to 12 samples can be measured using continuous measurement at 15-second intervals. •...

  • Page 26: Measurement Precautions

    2-2 Measurement Precautions Measurement Precautions 2-2-1 Operational Precautions This instrument is to be operated by qualified persons only. A qualified person  is one having adequate knowledge of clinical testing and the disposal of infectious waste. Thoroughly read this operating manual before use. Never touch the parts where sample may adhere with unprotected hands.

  • Page 27: Handling Samples

    Chapter 2 Measurement 2-2-2 Handling Samples BE CAREFUL WHEN HANDLING WHOLE BLOOD. This system uses whole  blood as sample. Whole blood may be contaminated by pathogenic microbes that can cause infectious diseases. Improper handling of whole blood may cause infection to the user or other individuals by pathogenic microbes. Discard used samples and test strips in accordance with local regulations ...

  • Page 28: Start Up

    2-3 Start Up Start Up Turning on the power Press and hold the button on the operator panel for 3 seconds to turn on the power. The standby screen will appear after all icons/indicators, the current date/time and then the version are shown. IMPORTANT: •...

  • Page 29: Measurement Conditions Setup

    Chapter 2 Measurement Measurement Conditions Setup Setting measurement number Press the button on the standby screen to switch to the measurement number setting mode. The icon and cursor will flash. Enter the desired number using the numeric buttons (up to 4 digits).
  • Page 30 2-4 Measurement Conditions Setup Setting compensation number Press the button on the standby screen to switch to the compensation number selection mode. The display will flash “ ” and show the compensation number. Press the button to change the compensation number.

  • Page 31: Normal Measurement

    Chapter 2 Measurement Normal Measurement Wear protective gloves to prevent exposure to pathogenic microbes.  Discard used samples and test strips in accordance with local regulations  for biohazardous waste. Preparing test strips Remove a test strip from the aluminum foil package and place it on the special tray.
  • Page 32 2-5 Normal Measurement Starting normal measurement Cover the top (open) end of the pipette with your index finger and push slowly to form a drop of blood at the tip of the capillary tube. Apply the drop of blood to the center of the filter paper on the test strip and immediately press the button.
  • Page 33 Chapter 2 Measurement Inserting the test strip into the strip holder The display will flash “– – – –” every 2 seconds for 20 seconds after the removal of spacer. During these 20 seconds, open the optical unit cover, insert the test strip all the way into the strip holder with the application side down, and close the cover.
  • Page 34 2-5 Normal Measurement Turning off the power Press and hold the button for 3 seconds to turn off the power. * Remove batteries or disconnect the AC adapter from the outlet before long periods of non-use. REFERENCE: The instrument turns off automatically if no buttons are pressed for 10 minutes.

  • Page 35: Continuous Measurement

    Chapter 2 Measurement Continuous Measurement Wear protective gloves to prevent exposure to pathogenic microbes.  Discard used samples and test strips in accordance with local regulations  for biohazardous waste. The following three methods can be used to perform continuous measurement: •...
  • Page 36 2-6 Continuous Measurement Peeling off spacer Peel off the spacer 180 seconds after sample application. Inserting the test strip into the strip holder Open the optical unit cover and insert the test strip into the strip holder with the application side down. Insert the test strip all the way into the strip holder.

  • Page 37: Measuring At 15-/30-Second Intervals

    Chapter 2 Measurement 2-6-2 Measuring at 15-/30-second Intervals (“15sec”, “30sec”) Measurements are performed consecutively by applying samples according to the displayed countdown. Up to 12 samples can be measured at 15-second intervals, and up to 6 samples can be measured at 30-second intervals. Preparing test strips and samples Preparation procedure is the same as that for normal measurement.
  • Page 38 2-6 Continuous Measurement Peeling off spacer After 180 seconds, the countdown in the center of the display No. of test strip for next spacer reaches 0. Immediately peel off the spacer. removal The display will show “– – – –”. Countdown to next spacer removal Inserting the test strip into the strip holder When “–...
  • Page 39 Chapter 2 Measurement Completing measurement After completion of all measurements, measurement results Continuous measurement 1 will be redisplayed in the order the measurements were made. Measurement results will be printed if the printer is Display attached. Printing and external output are performed at the same time as the measurement results are redisplayed.

  • Page 40: Check Measurement

    2-7 Check Measurement Check Measurement Wear protective gloves to prevent exposure to pathogenic microbes. Use the check strip that came with the instrument to see if the instrument is working properly. It is recommended to check the instrument on a regular basis or when a malfunction is suspected. Washing the strip holder Referring to “4-2 Daily Maintenance”...
  • Page 41 Chapter 2 Measurement Starting check measurement Press the button. The measurement result will be displayed. Checking concentration The instrument is operating properly if the displayed value falls within the range printed on the special case. If the value is outside of this range, the optical unit may be contaminated or the check strip may be contaminated or damaged.

  • Page 42: Printing Measurement Results

    2-8 Printing Measurement Results Printing Measurement Results When the printer is attached, measurement results are printed after measurement. Item Description Abnormal sample mark Abnormal sample mark “*” is printed when the measurement result is abnormal. Measurement number 4-digit measurement number is printed. Patient ID Patient ID (entered with numeric buttons) is printed.

  • Page 43: Chapter 3 Auxiliary Operations

    Chapter 3 Auxiliary Operations This chapter describes auxiliary operations including measurement result printing, measurement settings and parameter settings. Displaying and Setting the Time Press the button on the standby screen. The display will show the current time for 2 to 3 seconds and return to the standby screen.

  • Page 44: Displaying And Setting The Date

    3-2 Displaying and Setting the Date Displaying and Setting the Date Press the button twice on the standby screen. The display will show the current date for 2 to 3 seconds and return to the standby screen. Press the button while the date is being displayed to switch to the date setting screen.

  • Page 45: Reviewing Measurement Results

    Chapter 3 Auxiliary Operations Reviewing Measurement Results Press the button on the standby screen to review the most recent measurement result. icon will appear at the upper left of the display. Press the button while the measurement result is being displayed. The second most recent result will appear.

  • Page 46: Deleting Measurement Results

    3-4 Deleting Measurement Results Deleting Measurement Results 3-4-1 Deleting a Specific Result Single result can be deleted from the memory. Press the button while reviewing a measurement result. The icon will flash and the result is displayed. Press the button to delete the measurement result on the display.

  • Page 47: Transferring Measurement Results

    Chapter 3 Auxiliary Operations Transferring Measurement Results 3-5-1 Transferring a Specific Result Single result stored in memory can be transferred. Press the button while reviewing a measurement result. The icon will flash and the result is displayed. Press the button to transfer the measurement result on the display.

  • Page 48: Reprinting Measurement Results (When Connected To Printer)

    3-6 Reprinting Measurement Results (When Connected to Printer) Reprinting Measurement Results (When Connected to Printer) 3-6-1 Reprinting a Specific Result Single result stored in memory can be printed. Press the button while reviewing a measurement result. The icon will flash and the result is displayed. Press the button to print the measurement result on the display.

  • Page 49: Setting Special Parameters And Compensation Coefficients

    Chapter 3 Auxiliary Operations Setting Special Parameters and Compensation Coefficients 3-7-1 Settings  Date format setting Select the date format from “year-month-day”, “month-day-year” or “day-month-year”. The setting applies to the LCD display as well as printouts and remains effective even after turning the power off.

  • Page 50: Setting Compensation Coefficients

    3-7 Setting Special Parameters and Compensation Coefficients Enter the password “99” using the numeric buttons and press the button. The entry screen for 2-digit number will appear. Current setting Enter new values using the numeric buttons and press the button. The new setting will be saved and the standby screen will appear.
  • Page 51 Chapter 3 Auxiliary Operations Press the button. Enter a new value for compensation coefficient “b” (b: -99.9 to 99.9). The entry field will flash. Press the button to confirm the compensation coefficients. REFERENCE: • To cancel the change of compensation coefficients, press and hold the button until the parameter setting screen appears.

  • Page 52: Chapter 4 Maintenance

    Chapter 4 Maintenance This chapter describes how to clean the components of the instrument. Disinfection If sample gets on the instrument, clean it by following the instructions below. For disinfection of the device, lightly wipe the area to be disinfected with a cotton swab or gauze moistened with a disinfectant, then wipe the disinfectant with a cotton swab or gauze moistened with water, and then wipe it dry.

  • Page 53: Daily Maintenance

    Chapter 4 Maintenance Daily Maintenance Sample may adhere to the strip holder and optical unit during measurement and contaminant may build up as more samples are measured. To obtain accurate results, wash and disinfect the strip holder and optical unit after completing all measurements for the day. Wear protective gloves to prevent exposure to pathogenic microbes.
  • Page 54 4-2 Daily Maintenance Wipe dirt off the white plate with a cotton swab or piece of gauze moistened with water or 70% isopropanol. Wipe dirt off the optical window (glass window) with a dry cotton swab or piece of gauze. White plate Optical window...

  • Page 55: Chapter 5 Troubleshooting

    Chapter 5 Troubleshooting The instrument displays error codes when malfunctions occur during measurement. This chapter describes these errors and how to recover the instrument from the errors. When an Error Occurs You will see an error code on the display (and also on the printout, if using the printer) when there is a problem with measurement or printing.

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