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On Call Extra - User Manual

On Call Extra
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Blood Glucose Monitoring System
Self-monitoring of blood glucose (SMBG) is an integral part of diabetes care, but
the high cost of testing can make this impossible. At ACON, our goal is to provide
high quality glucose monitoring at a price that allows you to test as often as
necessary. Together, we can better manage your diabetes and help you live a
longer and healthier life.
Welcome, and thank you for choosing the On Call
®
Extra Blood Glucose
Monitoring System. The On Call
®
Extra Blood Glucose Monitoring System will
give you accurate blood glucose results in just a few simple steps.
To ensure accurate results from your On Call
®
Extra Blood Glucose Monitoring
System, please follow these guidelines:
• Read instructions before use.
• Use only On Call
®
Extra Blood Glucose Test Strips with the On Call
®
Extra
Blood Glucose Meter.
• For in vitro diagnostic use only. Your blood glucose monitoring system is to be
used only outside the body. It’s for monitoring the effectiveness of diabetes
control. It should not be used for the diagnosis of diabetes.
• For self-testing and professional use.
• Test only whole blood samples with the On Call
®
Extra Blood Glucose Test
Strips and On Call
®
Extra Meter.
• For self-testers, consult your physician or diabetes healthcare professional
before making any adjustments to your medication, diet or activity routines.
• Keep out of reach of children.
• Keep this User’s Manual in a safe place, do not discard it.
Following the instructions outlined in this User's Manual. You will be able to use
your On Call
®
Extra Blood Glucose Monitoring System to monitor your blood
glucose and better manage your diabetes.

Table of Contents

Questions and Answers

  • I
    isaac26Aug 14, 2025
    What to do if On Call Extra battery is discharged?
    • J
      Joshua EdwardsAug 14, 2025
      If the battery of your On Call Blood Glucose Meter is discharged, replace it with a new battery and repeat the test.
  • S
    Susan HenryAug 17, 2025
    Why On Call Extra Blood Glucose Meter says battery is low?
    • D
      Dennis FletcherAug 17, 2025
      If your On Call Blood Glucose Meter indicates that the battery is low but has enough power for 20 more tests, the test results will still be accurate. However, replace the battery as soon as possible.
  • D
    dleeAug 25, 2025
    What to do if On Call Blood Glucose Meter shows test strip damaged or calibration error?
    • J
      Jamie TaylorAug 25, 2025
      If your On Call Blood Glucose Meter indicates a damaged test strip or calibration error, retest using a new strip. If the problem continues, please contact your local distributor.
  • N
    Nicholas MillerAug 27, 2025
    Why On Call Blood Glucose Meter says Non On Call® Extra test strip inserted?
    • M
      Molly RobersonAug 27, 2025
      This message indicates that you are not using the correct test strip. Ensure you are using the On Call® Extra test strip with the On Call® Extra Blood Glucose Meter. If the problem persists, please contact your local distributor.
  • R
    Rebecca RayAug 31, 2025
    What to do if On Call Extra says temperature has exceeded the operating temperature?
    • A
      Anthony Brown MDAug 31, 2025
      If your On Call Blood Glucose Meter indicates that the temperature has exceeded the operating temperature of the system, move to a cooler environment and repeat the test.
  • T
    Tina ShermanSep 3, 2025
    What to do if On Call Extra says temperature is below the operating temperature?
    • S
      sarahdeckerSep 3, 2025
      If your On Call Blood Glucose Meter displays a message indicating that the temperature is below the operating temperature of the system, move to a warmer environment and repeat the test.
  • M
    Matthew KingSep 6, 2025
    What to do if On Call Extra Blood Glucose Meter is plugged in with the data transfer cable in waiting mode?
    • M
      Mr. Jacob Nichols Jr.Sep 7, 2025
      If the On Call Blood Glucose Meter is plugged in with the data transfer cable while in waiting for sample application mode, unplug the cable from the meter’s data port. Then, remove the strip and reinsert it into the strip port for testing. If the issue continues, contact your local distributor.
  • M
    melissa86Sep 10, 2025
    What to do if On Call Extra has electronics failure?
    • Y
      Yvonne WellsSep 10, 2025
      If your On Call Blood Glucose Meter experiences an electronics failure, please contact your local distributor for assistance.
  • H
    Heather CombsNov 19, 2025
    How to fix On Call Blood Glucose Meter that fails to turn on?
    • J
      jonathancooperNov 19, 2025
      If your On Call Blood Glucose Meter isn't turning on, here are a few things to try: * Replace the battery, as it may be damaged or not charged. * If the meter is too cold, wait 30 minutes for it to reach room temperature. * Remove the battery for 30 seconds and then put it back in to address a potential Power On self-check error. If the problem persists, contact your local distributor. * Turn off the meter or remove the test strip, then turn it on again to retest in case of an internal calibration check error. If it still fails, contact your local distributor. * If the test strip was removed during the test, repeat the test, ensuring the test strip remains in place. * If you applied the sample too soon, repeat the test and apply the sample after the blood drop/test strip symbo...

Summary

Getting Started

Component Descriptions

Details all the components included with your blood glucose monitoring system.

Meter Overview

Meter Parts and Display

Identifies meter parts and explains the liquid crystal display symbols.

Meter Use and Precautions

Provides essential guidelines and safety warnings for using the blood glucose meter.

Test Strips and Control Solution

Test Strip Handling and Precautions

Covers storage, handling, and precautions for using On Call® Extra Blood Glucose Test Strips.

Control Solution Usage

Explains the purpose, storage, and precautions for using the control solution.

Initial Meter Setup

Installing the Battery

Step-by-step guide for inserting the CR 2032 coin cell battery into the meter.

Meter Configuration

Setting up clock, date, time, features, and test reminders for the meter.

Performing Tests

Quality Control Testing

Steps and reasons for running a quality control test to ensure meter accuracy.

Obtaining and Testing Blood

Instructions for getting a blood sample and performing the glucose test.

Interpreting Test Results

Explains common meter messages like "HI", "LO", "Hypo", "Hyper", and "Ketone?".

Data Management and Maintenance

Meter Memory Functions

How to view, clear, and transfer stored blood glucose records.

Maintenance and Care

Guides on replacing the battery and caring for the meter and lancing device.

Reference Information

Testing Goals and Guidelines

Recommendations for blood glucose testing times, goals, and comparing results.

Troubleshooting and Specifications

Provides troubleshooting steps, technical specifications, and warranty info.

Symbols and Index

Explains device symbols and provides a manual index for quick reference.

On Call Extra Specifications

General IconGeneral
Sample Size0.4 µL
Test Time4 seconds
Blood SampleCapillary whole blood
Battery2 x AAA batteries
DisplayLCD
Battery LifeApproximately 1, 000 tests
Automatic Power Off2 minutes
Operating Humidity10-90% RH
Measurement Range20 - 600 mg/dL (1.1 - 33.3 mmol/L)
Memory450 tests
Operating Temperature5°C to 45°C (41°F to 113°F)