Welch Allyn 9600 User Manual [en, de, fr]

Name: Welch Allyn 9600
Brand: Welch Allyn
SKU: 1773822
Rating: 4.5 (2 reviews)

4.5 (2)

9600 Plus Calibration Tester

Welch Allyn assumes no responsibility for any injury to anyone, or for any illegal or improper use of the product, that may result from failure to use this product in accordance with the instructions, cautions, warnings, or statement of intended use published in this manual.

Welch Allyn is a registered trademark of Welch Allyn. Braun ThermoScan is a registered trademarks of Braun Corporation.

Printed in Mexico

Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Symbols and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Unpacking the 9600 Plus Calibration Tester . . . . . . . . . . . . . 4

Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . 5

LCD Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Power On Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Front of the 9600 Plus Calibration Tester . . . . . . . . . . . . . . . 7

Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

9600 Plus Calibration Tester Setup. . . . . . . . . . . . . . . . . . . 11 Welch Allyn SureTemp and SureTemp Plus Thermometers 13 Braun ThermoScan Pro 4000 Model. . . . . . . . . . . . . . . . . . 15 Braun ThermoScan Pro 3000 Model. . . . . . . . . . . . . . . . . . 17 Changing the Calibration Set Point Temperature . . . . . . . . 19

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Problem Solving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Electro-Magnetic Compatibility. . . . . . . . . . . . . . . . . . . . . . 26

Warranty and Service . . . . . . . . . . . . . . . . . . . . . . . . . 27

Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Symboles et descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Mises en garde . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Déballage du testeur d’étalonnage 9600 Plus . . . . . . . . . . . 4

Commandes et indicateurs . . . . . . . . . . . . . . . . . . . . . . 5

Affichage ACL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Séquence de mise en marche . . . . . . . . . . . . . . . . . . . . . . . 7 Avant du testeur d’étalonnage 9600 Plus . . . . . . . . . . . . . . . 7

Fonctionnement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Installation du testeur d’étalonnage 9600 Plus. . . . . . . . . . 11 Thermomètres Welch Allyn SureTemp et SureTemp Plus . 13 Modèle Braun ThermoScan Pro 4000. . . . . . . . . . . . . . . . . 15 Modèle Braun ThermoScan Pro 3000. . . . . . . . . . . . . . . . . 17 Modification de la température de consigne d’étalonnage. 20

Entretien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Nettoyage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Dépannage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Spécifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Compatibilité électromagnétique . . . . . . . . . . . . . . . . . . . . 26

Garantie et entretien . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Garantie limitée. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Entretien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Einführung. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Symbole und Beschreibungen . . . . . . . . . . . . . . . . . . . . . . . 2 Vorsicht . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Directions for Use Contents iii

Auspacken des Kalibriertesters 9600 Plus . . . . . . . . . . . . . . 4

Bedienelemente und Anzeigen . . . . . . . . . . . . . . . . . . . 5

Flüssigkristallanzeige . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Einschaltreihenfolge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Vorderseite des Kalibriertesters 9600 Plus . . . . . . . . . . . . . . 7

Betrieb. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Konfiguration des Kalibriertesters 9600 Plus . . . . . . . . . . . 11 Die Thermometer SureTemp und SureTemp Plus von Welch Allyn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Das Modell ThermoScan Pro 4000 von Braun . . . . . . . . . . 15 Das Modell ThermoScan Pro 3000 von Braun . . . . . . . . . . 17 Änderung der Kalibriersolltemperatur . . . . . . . . . . . . . . . . . 20

Wartung. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Reinigung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Fehlerbehebung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Technische Daten . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Elektromagnetische Verträglichkeit. . . . . . . . . . . . . . . . . . . 27

Gewährleistung und Service . . . . . . . . . . . . . . . . . . . . 29

Beschränkte Gewährleistung . . . . . . . . . . . . . . . . . . . . . . . 29 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Introduction

The 9600 Plus Calibration Tester verifies calibration of the following thermometers:

• Welch Allyn SureTemp

986)

• Welch Allyn SureTemp OEM)

• Braun ThermoScan

The 9600 Plus Calibration Tester provides a tightly regulated temperature source that eliminates the setup, precision calibration, and maintenance requirements of water baths and other general purpose calibration equipment. The user takes the “temperature” of the 9600 Plus Calibration Tester with the knowledge and assurance that precise readings are obtained because the unit is factory calibrated to National Institute of Standards and Technology (NIST) or equivalent devices. User adjustments are not required or recommended.

The “blackbody” of the 9600 Plus Calibration System acts as a heat reservoir for the thermistor probe and as a heat radiator for the infrared ear thermometer.

The unit contains solid-state circuitry for long-term stability with minimal maintenance. Welch Allyn uses only precision components in the construction of the 9600 Plus Calibration Tester. To maintain traceability to NIST or equivalent, return the 9600 Plus Calibration Tester to the factory for annual calibration.

models (678, 678 OEM, 679 and

Plus models (690, 692 and 692

Pro 3000 and Pro 4000

2 Chapter 1 Introduction Welch Allyn 9600 Plus Calibration Tester

Symbols and Descriptions

Double Insulation.

Direct Current.

Handle with Care.

Conforms to IEC 61010-1:2001 and EN 61010-1:2001

Attention! Caution; Consult Directions for Use for more information.

Transport/Storage Temperature

Relative Humidity

Separate collection for electronic equipment

Recyclable

Directions for Use Chapter 1 Introduction 3

Cautions

A caution statement in this manual identifies a condition or practice which, if not corrected or discontinued immediately, could lead to equipment failure, equipment damage, or data loss.

Caution Do not immerse or soak the 9600 Plus Calibration Tester in any type of fluid.

Caution Only trained Biomedical personnel should operate the 9600 Plus Calibration Tester and conduct calibration verification of thermometers.

Caution When not using the Thermistor or Ear Device Ports, keep them covered with the Dust Cover.

Caution Store thermometers for testing in the same room as the 9600 Plus Calibration Tester for approximately 30 minutes prior to testing to allow for thermal accommodation.

Caution Do not clean the Thermistor or Ear Device Ports. Doing so may damage the surface. Only a Welch Allyn authorized Service Center should clean the Device Ports.

4 Chapter 1 Introduction Welch Allyn 9600 Plus Calibration Tester

Unpacking the 9600 Plus Calibration Tester

Unpack the 9600 Plus Calibration Tester and inspect for missing items. Retain the shipping materials to return the device to Welch Allyn for recalibration.

The following items are enclosed:

• A 9600 Plus Calibration Tester

• A package containing a power supply and four mains plug inserts

• The Directions for Use

• A Carrying Case

If any of these items are missing after opening, please contact Welch Allyn Customer Service at the number provided on

page 28.

Controls and Indicators

LCD Display

Figure 1. LCD Display and Front Buttons

Calibration Set

Point Temperature

Celsius/Fahrenheit

Selection Button

Set Point

Mode

Temperature Units

Current Cavity Temperature

Temperature Selection Button

Calibration Set Point Temperature

There are three Calibration Set Point temperatures used to test the calibration of the thermometer. The three temperatures are 36° C (96.8° F), 38.5° C (101.3° F), and 41°

6 Chapter 2 Controls and Indicators Welch Allyn 9600 Plus Calibration Tester

C (105.8° F). The LCD displays the current Calibration Set Point Temperature in the upper left corner of the LCD.

Current Cavity Temperature

The current temperature of the 9600 Plus Calibration Tester is indicated by the large numbers in the center of the display

(Figure 1).

As the device is transitioning to the current Calibration Set Point Temperature, the actual temperature flashes on the display. When the device reaches the Calibration Set Point Temperature, the temperature in the center of the display stops flashing.

Temperature Units

The 9600 Plus Calibration Tester is capable of displaying the temperature in degrees Fahrenheit or Celsius.

Set Point Mode

The LCD will display either a "D" (Default) or "L" (Last Used) in the upper left hand corner (Figure 1). The 9600 Plus Calibration Tester has two set point modes of operation. The Default mode (from the factory) causes the 9600 Plus Calibration Tester to heat up to the lowest set point (36.0 Last Used mode causes the 9600 Plus Calibration Tester to heat up to the last temperature setting that was used.

C / 96.8°F) upon startup. The

To change the Set Point Mode, press and hold the C/F and Arrow buttons below the LCD display simultaneously until a single audio beep is heard. A “D” or an “L” will appear in the upper left corner of the display for the new mode.

Directions for Use Chapter 2 Controls and Indicators 7

Power On Sequence

The 9600 Plus Calibration Tester receives power from a wallmount power pack that plugs into the back of the unit. There is no ON/OFF switch. On power up, the 9600 Plus Calibration Tester performs internal self-checks, displays an all-segments test pattern, beeps and displays the device’s current temperature. The 9600 Plus Calibration Tester immediately applies heat, if needed, to reach the selected Calibration Set Point Temperature.

Front of the 9600 Plus Calibration Tester

Temperature Selection Button

This button allows the user to select one of three set point temperatures: 36.0

(105.8

To scroll from one set point to the next, press and hold the Temperature Selection button until a beep is heard. The newly selected set point appears in the upper left corner of the LCD display. The device’s current temperature is displayed, will start to flash, and continue flashing until the cavity reaches the equilibrium at the new set point.

F).

C (96.8°F), 38.5°C (101.3°F), or 41.0°C

Celsius/Fahrenheit Selection Button

This button allows the user to select degrees Celsius or degrees Fahrenheit. To change the temperature units, press and hold the C/F button until a beep is heard. The temperatures will appear in either “°C” or “°F”, see (Figure 1).

8 Chapter 2 Controls and Indicators Welch Allyn 9600 Plus Calibration Tester

Figure 2. Front of the 9600 Plus Calibration Tester

Power Jack

Thermistor Device Port

Dust Cover

Ear Device Port

Directions for Use Chapter 2 Controls and Indicators 9

Dust Cover

This black, plastic cover keeps dust from entering the Thermistor and Ear Device Ports. To expose the Thermistor and Ear Device Ports, rotate the Dust Cover counter clockwise. To cover the ports, rotate the Dust Cover clockwise.

Caution When not using the Thermistor or Ear Device Ports, keep them covered with the Dust Cover.

Thermistor and Ear Device Ports

The Ear Device Port is the larger of the two ports located under the dust cover and is for the Braun ThermoScan Pro 3000 and Pro 4000 ear thermometers (Figure 2).

The Thermistor Device Port is the smaller port located under the dust cover and is for the SureTemp and SureTemp Plus thermometers.

The surface texture inside the Ear Device Port is painted with a special dull, black paint to enable Ear device readings. You can only see its surface under bright light. The Thermistor Device Port is not painted black. Keep both clean and dry.

The coating in the device ports of the unit is fragile, so please follow the cleaning instructions carefully. Do not touch the surface, and do not allow any foreign objects to be inserted into the ports. Avoid spilling liquids onto the unit. If liquid or other contaminants enter the unit, Welch Allyn can not assure proper calibration and you must return the unit to Welch Allyn for recalibration.

10 Chapter 2 Controls and Indicators Welch Allyn 9600 Plus Calibration Tester

Operation

9600 Plus Calibration Tester Setup

Place the 9600 Plus Calibration Tester on a level surface away from sunlight, drafts, and other sources of heat or cold. The 9600 Plus Calibration Tester takes approximately 20 minutes to heat to the lowest setting. When testing several thermometers at all three temperatures, it is recommended to test all probes at one Calibration Set Point Temperature before proceeding to the next Calibration Set Point Temperature. To further expedite testing start at the lowest Calibration Set Point Temperature. The 9600 Plus Calibration Tester does not have an internal fan, causing the cool down time to be greater than the time it takes to heat up.

12 Chapter 3 Operation Welch Allyn 9600 Plus Calibration Tester

Figure 3. Power Adapter and Mains Plug Inserts

Two prongs in the power adapter

UKUS EUAUS

For the setup:

1. Choose the proper mains plug insert and slide it over the two prongs in the power converter (Figure 3).

2. Plug the power adapter into the 9600 Plus Calibration Tester

(Figure 2) and the opposite end into a wall outlet.

3. Observe the Set Point Mode in the upper left hand corner of the LCD display (Figure 1). If the unit displays a "D", it is in Default Mode and will heat to the lowest Set Point Temperature. If you do not want to conduct testing at this Set Point Temperature, press and hold the Temperature Selection button to select the desired setting. The temperature display will flash before staying on continuously to indicate the 9600 Plus Calibration Tester has stabilized and is ready for use.

Directions for Use Chapter 3 Operation 13

Welch Allyn SureTemp and SureTemp Plus Thermometers

Caution Store thermometers for testing in the same room as the 9600 Plus Calibration Tester for approximately 30 minutes prior to testing to allow for thermal accommodation.

Figure 4. 9600 Plus Calibration Tester with the Welch Allyn SureTemp Plus Thermometer

To begin calibration verification of the thermometers:

14 Chapter 3 Operation Welch Allyn 9600 Plus Calibration Tester

1. Remove the probe from the probe well and clean it with either a 70% isopropyl alcohol solution, a 10% chlorine bleach solution, or a non-staining disinfectant. Let the probe air dry. Do not apply a probe cover.

2. Place the thermometer in Monitor Mode, refer to the thermometer’s Operator's Manual.

3. Insert the probe into the Thermistor Device Port (Figure 4).

4. Wait for approximately one minute or until temperature on the thermometer is stable for ten seconds. Compare the thermometer's temperature reading to the 9600 Plus' Calibration Set Point Temperature. If the temperatures are within ±0.1° C (±0.2° F), the thermometer is within calibration.

5. Test all available thermometers for calibration verification at the current Calibration Set Point Temperature. Proceed to the next Calibration Set Point Temperature, see "Changing the

Calibration Set Point Temperature" (page 19).

Directions for Use Chapter 3 Operation 15

Braun ThermoScan Pro 4000 Model

Caution Store thermometers for testing in the same room as the 9600 Plus Calibration Tester for approximately 30 minutes prior to testing to allow for thermal accommodation.

Figure 5. 9600 Plus Calibration Tester with the Braun ThermoScan Pro 4000

To begin calibration verifcation of the thermometers:

1. Clean the probe tip with a cotton swab slightly moistened with isopropyl alcohol, remove excess alcohol with a clean

16 Chapter 3 Operation Welch Allyn 9600 Plus Calibration Tester

cotton swab, and let air dry for 5 minutes.Do not use any chemical other than alcohol to clean the probe window.

2. Place the Braun ThermoScan Pro 4000 in Calibration Mode using the following steps.

a. Push and release the I/O MEM button to turn the product

on. The display will show symbols and functions. The Pro 4000 will perform an automatic self check. After a few seconds you will hear a beep and see three dashed lines, a sound symbol, and ° C or ° F on the display.

b. Push the I/O MEM button again and keep it pressed for

the following steps:

• After approx. 3 seconds the “OFF” symbol will flash on the display (keep the button depressed).

• When you hear a beep, release the button immediately.

• The Pro 4000 is now in calibration check mode and the display is flashing and showing the “CAL” symbol.

3. Apply a new probe cover. Place the probe firmly into the Ear Device Port (Figure 5).

4. Wait approximately three seconds, press the thermometer Start button, and watch for the "Exac Temp" light to flash.

5. Leave the thermometer in the 9600 Plus Calibration Tester until you hear a beep.

6. Remove the Pro 4000 Thermometer from the 9600 Plus Calibration Tester and read the temperature in the thermometer’s display. If the temperatures are within ±0.2° C (±0.4° F), the thermometer is within calibration.

Directions for Use Chapter 3 Operation 17

7. Wait one full minute before taking another reading with the same thermometer. Repeated measurements in short sequence may cause higher readings.

8. The device will exit CAL mode after four minutes.

9. Test all available thermometers for calibration verification at the current Calibration Set Point Temperature. Proceed to the next Calibration Set Point Temperature, see "Changing the

Calibration Set Point Temperature" (page 19).

Braun ThermoScan Pro 3000 Model

Caution Store thermometers for testing in the same room as the 9600 Plus Calibration Tester for approximately 30 minutes prior to testing to allow for thermal accommodation.

18 Chapter 3 Operation Welch Allyn 9600 Plus Calibration Tester

Figure 6. 9600 Plus Calibration Tester with Braun ThermoScan Pro 3000

1. Clean the probe tip with a cotton swab slightly moistened with isopropyl alcohol, remove excess alcohol with a clean cotton swab, and let air dry for 5 minutes.Do not use any chemical other than alcohol to clean the probe window.

2. Place the Braun ThermoScan Pro 3000 in calibration check mode using the following steps.

a. Wait until the thermometer is in Standby mode (the screen

is blank).

b. Press down and hold the Activation button, do not release

until Step d.

c. Press the /Mem button.

Directions for Use Chapter 3 Operation 19

d. The LCD will flash “CAL” after the self check sequence.

The display will flash “CAL”, even if you have taken a temperature.

e. Release both buttons.

3. Apply a new probe cover. Place the device firmly into the Ear Device Port (Figure 6).

4. Wait approximately three seconds, press the thermometer Activation button, and listen for the beep.

5. Remove the Pro 3000 Thermometer from the 9600 Plus Calibration Tester and read the temperature in the thermometer’s display. If the temperatures are within ±0.2° C (±0.4° F), the thermometer is within calibration.

6. Wait one full minute before taking another reading with the same thermometer. Repeated measurements in short sequence may cause higher readings.

7. The device will exit Cal mode after approximately 4 minutes.

8. Test all available thermometers for calibration verification at the current Calibration Set Point Temperature. Proceed to the next Calibration Set Point Temperature, see "Changing the

Calibration Set Point Temperature" (page 19).

Changing the Calibration Set Point Temperature

20 Chapter 3 Operation Welch Allyn 9600 Plus Calibration Tester

Maintenance

Cleaning

To clean the 9600 Plus Calibration Tester:

1. Unplug the electrical cord from the back of the unit.

2. Using a cloth slightly dampened with a solution of warm

3. Rinse the cloth with water and thoroughly wring it out.

4. Wipe off the soap and water from the 9600 Plus.

5. Let the 9600 Plus Calibration Tester dry for 15 minutes.

6. Plug the electrical cord into the back of the unit.

water and mild soap, clean the outside of the unit. Take extra care so that soap and water do not enter the two device ports.

Caution Do not clean the Thermistor or Ear Device Ports. Doing so may damage the surface. Only a Welch Allyn authorized Service Center should clean the Device Ports.

22 Chapter 4 Maintenance Welch Allyn 9600 Plus Calibration Tester

Problem Solving

Error Problem Solution

E  Calibration Tester cannot reach

Set Point Temperature because room or device is too warm.

E  Calibration Tester cannot reach

Set Point Temperature because room or device is too cold.

Voltage Power adapter voltage problem Call Welch Allyn for replacement

E0.1 Broken Heater, not heating at

all

E0.2 Heater run away (heater does

not turn off at appropriate time)

E0.3 Open thermistor Return to Welch Allyn for service

E0.4 Shorted thermistor Return to Welch Allyn for service

E0.5 Open RCAL resistor Return to Welch Allyn for service

E0.6 Shorted RCAL resistor Return to Welch Allyn for service

E0.7 Open PTB resistor Return to Welch Allyn for service

Ambient temperature and/or device temperature should be within 18.3°C to 26.7

°C (65°F to 80°F). Allow 30

minutes for thermal accommodation prior to testing.

Ambient temperature and/or device temperature should be within 18.3 to 26.7°C (65°F to 80 minutes for thermal accommodation prior to testing.

Return to Welch Allyn for service

°F). Allow 30

°C

E0.8 Shorted PTB resistor Return to Welch Allyn for service

E0.9 Catastrophic internal failure Return to Welch Allyn for service

Directions for Use Chapter 4 Maintenance 23

Error Problem Solution

E1.1 Device not calibrated Return to Welch Allyn for service

E1.3 EEPROM failure Return to Welch Allyn for service

9600 Plus Calibration Tester Checks

If several thermometers do not pass the calibration verification tests, check the 9600 Plus Calibration Tester to determine if it is out of calibration. Before sending the unit to an authorized Welch Allyn service center, complete the checks listed below.

1. Check the calibration date on the side of the 9600 Plus Calibration Tester. If the 9600 Plus Calibration Tester was calibrated over 12 months ago, do not use it. Send it to an authorized Welch Allyn Service center immediately for calibration.

2. Ensure no one has tampered with the 9600 Plus Calibration Tester. If someone has tampered with the unit or the calibration label(s), the calibration settings and warranty are void. Send it to an authorized Welch Allyn Service center immediately for calibration.

3. Ensure the 9600 Plus Calibration Tester is not exposed to extreme temperatures that can damage the precision thermistor. Exposure to high heat can cause the resistance versus temperature characteristic of the unit to shift, causing the 9600 Plus Calibration Tester to become inaccurate. Send it to an authorized Welch Allyn Service center immediately for calibration.

4. Verify the probe tip of the Braun ThermoScan Pro 3000 and the Braun ThermoScan Pro 4000 are clean. Always use new probe covers when calibration testing these thermometers.

24 Chapter 4 Maintenance Welch Allyn 9600 Plus Calibration Tester

5. Verify the ear thermometers are in calibration mode.

6. Verify the thermistor thermometers are in monitor mode.

Environmental Checks

1. Verify that there is no excessive moisture or steam in the air. High humidity (above 90%) can cause electrical leakages that can temporarily shift the device out of calibration. If the thermometers and/or the 9600 Plus Calibration Tester are exposed to such conditions, allow each device to sit at normal room temperature and humidity for at least 30 minutes before conducting a calibration test.

2. Avoid exposure to extreme temperatures. Thermal gradients in the thermometer or the 9600 Plus Calibration Tester can cause unpredictable effects. Verify the 9600 Plus Calibration Tester is within the specified ambient temperature range of

18.3° C (65.0° F) to 26.7° C (80.0° F).

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