Fluke Thermometer 53IIB User Manual

53IIB/54IIB  
Thermometer  
Users Manual  
January 2011  
© 2011 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.  
All product names are trademarks of their respective companies.  
 
Title  
Page  
Safety Information .......................................................................................................... 1  
Contacting Fluke........................................................................................................ 1  
Getting Started............................................................................................................... 4  
Components.............................................................................................................. 5  
Display Elements....................................................................................................... 6  
Buttons ...................................................................................................................... 7  
Using the Thermometer.................................................................................................. 9  
Changing Setup Options ................................................................................................ 9  
Entering and Exiting Setup........................................................................................ 9  
Changing the Logging Interval................................................................................... 10  
Changing the Thermocouple Type ............................................................................ 11  
Changing the Offset................................................................................................... 11  
Enabling or Disabling Sleep Mode............................................................................. 12  
Setting the Time ........................................................................................................ 12  
Changing the Line Frequency ................................................................................... 13  
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53IIB/54IIB  
Users Manual  
Measuring Temperatures............................................................................................... 13  
Connecting a Thermocouple..................................................................................... 13  
Displaying Temperatures.......................................................................................... 14  
Holding the Displayed Temperatures........................................................................ 14  
Viewing the MIN, MAX, and AVG Readings ............................................................. 14  
Using the Offset to Adjust for Probe Errors............................................................... 15  
Using Memory ............................................................................................................... 15  
Initial Conditions and Data Entries............................................................................ 16  
Starting and Stopping Logging.................................................................................. 16  
Clearing Memory....................................................................................................... 17  
Viewing Logged Readings ........................................................................................ 17  
Communicating with a PC ............................................................................................. 18  
Maintenance.................................................................................................................. 19  
Replacing the Batteries............................................................................................. 19  
Cleaning the Case and Holster................................................................................. 19  
Calibration................................................................................................................. 19  
Specifications ................................................................................................................ 19  
Environmental........................................................................................................... 19  
80 PK-1 Thermocouple (supplied with thermometer)................................................ 20  
Electrical ................................................................................................................... 20  
Replacement Parts and Accessories............................................................................. 21  
ii  
 
53IIB/54IIB  
Contacting Fluke  
Safety Information  
To order accessories, receive assistance, or locate the  
nearest Fluke distributor or Service Center, call:  
The Fluke 53IIB and 54IIB Thermometers (“the  
thermometer”) are microprocessor-based, digital  
thermometers designed to use external J-, K-, T-, E-, R-,  
S-, and N-type thermocouples (temperature probes) as  
temperature sensors.  
1-888-99-FLUKE (1-888-993-5853) in USA  
1-800-36-FLUKE (1-800-363-5853) in Canada  
+31-402-678-200 in Europe  
+81-3-3434-0181 in Japan  
+65-738-5655 in Singapore  
+1-425-446-5500 from other countries  
Use the thermometer only as specified in this manual.  
Otherwise, the protection provided by the meter may be  
impaired.  
Address correspondence to:  
Refer to safety information in Table 1 and the meter  
symbols in Table 2.  
Fluke Corporation  
P.O. Box 9090  
Everett, WA 98206-9090  
USA  
Fluke Europe B.V.  
P.O. Box 1186  
5602 BD Eindhoven  
The Netherlands  
Visit us on the World Wide Web at: www.fluke.com.  
To register your product, visit http://register.fluke.com.  
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53IIB/54IIB  
Users Manual  
Table 1. Safety Information  
W Warning  
A Warning identifies conditions and actions that pose hazards to the user. To avoid electrical shock or  
personal injury, follow these guidelines:  
Before using the thermometer inspect the case. Do not use the thermometer if it appears damaged.  
Look for cracks or missing plastic. Pay particular attention to the insulation around the connectors.  
Disconnect the thermocouple(s) from the thermometer before opening the case.  
Replace the batteries as soon as the battery indicator () appears. The possibility of false readings  
can lead to personal injury.  
Do not use the thermometer if it operates abnormally. Protection may be impaired. When in doubt,  
have the thermometer serviced.  
Reflective objects result in lower than actual temperature measurements. These objects pose a burn  
hazard.  
Do not operate the thermometer around explosive gas, vapor, or dust.  
Do not connect to voltages > 30 V ac rms, 42 V pk, 60 V dc from earth ground.  
2
 
53IIB/54IIB  
Safety Information  
Table 1. Safety Information (cont.)  
W Warning (cont.)  
Model 54: Measurement errors may occur if voltages on the measurement surfaces result in potentials  
greater than 1 V between the two thermocouples. When potential differences are anticipated between  
the thermocouples, use electrically insulated thermocouples.  
When servicing the thermometer, use only specified replacement parts.  
Do not use the thermometer with any part of the case or cover removed.  
Caution  
A Caution identifies conditions and actions that may damage the meter or the equipment under test.  
Use the proper thermocouples, function, and range for your thermometer.  
Do not attempt to recharge the batteries.  
To prevent explosion, do not throw batteries into a fire.  
Follow local laws or regulations when disposing of batteries.  
Match the + and polarities of the battery with the battery case.  
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53IIB/54IIB  
Users Manual  
Table 2. International Symbols  
Refer to the manual for information about this feature.  
Complies with European Union directives.  
W
P
Battery.  
Complies with relevant Canadian Standards  
Association directives.  
M
)
Figure 1 and Table 3 describe the components.  
Figure 2 and Table 4 describe the display.  
Table 5 describes the functions of the buttons.  
Getting Started  
Everything in this Users Manual applies both to Models  
53 and 54 unless otherwise indicated.  
To become familiar with the thermometer, study the  
following:  
Then read the following sections.  
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53IIB/54IIB  
Getting Started  
Table 3. Components  
Components  
Thermocouple T1 input  
Model 54: Thermocouple T2 input  
3
Holster  
2
Display  
1
4
5
Buttons  
Battery door  
Batteries  
6
7
aat01f.eps  
Figure 1. Components  
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53IIB/54IIB  
Users Manual  
Table 4. Display Elements  
Display Elements  
The thermocouple measurement includes an  
offset. See "Changing Setup Options."  
2
3
4
5
6
7
1
The displayed readings do not change.  
A shift function is in progress.  
Readings are being logged.  
8
Setup is in progress.  
9
12  
11  
Logged readings are displayed.  
Low battery. Replace the batteries.  
10  
Primary Display. Model 53: T1 reading.  
Model 54 T1, T2, or T1-T2 reading.  
aat02f.eps  
Figure 2. Display Elements  
The temperature units.  
Secondary Display: MAX, MIN, AVG, MEMORY,  
or offset. Model 54: T1 or T2 reading.  
The thermocouple type.  
Time Display: 24-hour clock. Shows the  
INTERVAL length in SETUP. Shows elapsed time  
when AVG is on or before clock has been set.  
6
 
 
53IIB/54IIB  
Getting Started  
Buttons  
Table 5. Buttons  
Press to turn the thermometer on or off.  
Press , (CANCEL) to stop displaying the minimum, maximum, and average readings in the  
secondary display.  
(Shift function)  
Press , (CLEAR MEMORY) to delete logged readings from memory.  
Press , (PC/IR SEND) to toggle the IR port on and off.  
Press to turn the backlight on and off. The backlight turns off after 2 minutes without any button  
presses. If the battery is low, the backlight is disabled.  
  
Press to step through the maximum, minimum, and average readings.  
When viewing logged readings, shows the maximum, minimum, and average of the logged readings.  
Press , (CANCEL) to turn off this display.  
Press to switch between Celsius (oC), Fahrenheit (oF), and Kelvin (K).  
7
 
 
53IIB/54IIB  
Users Manual  
Table 5. Buttons (cont.)  
 
Press to freeze or unfreeze the displayed readings.  
Press when turning on the thermometer to test the display. All display elements appear.  
Model 54: Press to toggle showing the T1, T2, and T1-T2 (differential temperature measurement) in  
the primary or secondary display.  
Press to start or exit Setup. (See "Changing Setup Options.")  
Press to scroll to the Setup option you want to change.  
Press to increase the displayed setting.  
Press to scroll to the Setup option you want to change.  
Press to decrease the displayed setting.  
Press to enter a Setup option.  
Press again to store the displayed setting in memory.  
Press to start or stop logging.  
During manual logging, the thermometer stores a single set of logged readings in memory each time you  
press .  
Press to show logged readings and MIN MAX readings on the display.  
Press again to stop.  
8
 
53IIB/54IIB  
Using the Thermometer  
Entering and Exiting Setup  
Using the Thermometer  
When the thermometer is in Setup mode, the display  
shows .  
1. Plug the thermocouple(s) into the input connector(s).  
2. Press to turn on the thermometer.  
Press to start or exit Setup.  
After 1 second the thermometer displays the first reading.  
If no thermocouple is plugged into the selected input or the  
thermocouple is "open," the display shows:  
Notes  
Press or to scroll to the setup option you  
want to change.  
"- - - -."  
Setup is disabled in MIN MAX mode.  
Changing Setup Options  
Use Setup to change the logging interval, thermocouple  
type, offset, sleep mode, time, and line frequency settings.  
The thermometer stores the settings in its memory. Setup  
settings reset only when the batteries are removed for  
more than 2 minutes.  
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53IIB/54IIB  
Users Manual  
4. If you selected a user-defined logging interval:  
Changing the Logging Interval  
The logging interval determines how often the  
thermometer stores logged readings in memory. You  
choose the length of the logging interval. See "Using  
Memory."  
Press or until the display shows  
hour:min or min:sec, and then press to  
select.  
The left two digits blink.  
The thermometer stores logged readings at the end of  
each logging interval. You can select a logging interval of  
1 second (1), 10 seconds (2), 1 minute (3), 10 minutes (4),  
or user-defined ().  
Press or until the left two digits you want  
appear on the display, and then press to  
select them.  
The right two digits blink.  
You can also set the logging interval manually (0). Each  
time you press , the thermometer stores the current  
readings in memory.  
Press or until the right two digits you  
want appear on the display, and then press   
to select them.  
1. Press or until the display shows INTERVAL.  
2. Press to display the logging interval choices.  
Holding down or causes the number to  
change more quickly.  
3. Press or until the display shows the logging  
interval you want, and then press to select.  
10  
 
 
53IIB/54IIB  
Changing Setup Options  
Changing the Thermocouple Type  
Changing the Offset  
1. Press or until the display shows TYPE.  
You can adjust the thermometer's readings to compensate  
for the errors of a specific thermocouple. See "Using the  
Offset to Adjust for Probe Errors." The allowable  
adjustment range is 5.0 oC or K, and 9.0 oF.  
2. Press to display the thermocouple type choices.  
The currently selected thermocouple blinks.  
Model 54: You can store individual offsets for T1 and T2.  
3. Press or until the thermocouple you want  
appears on the display.  
1. Press or until the display shows and  
T1 or T2.  
4. Press to store the thermocouple type in memory.  
2. Press to indicate that you want to change the  
offset setting.  
The temperature measurement plus the offset  
appears in the primary display. The offset appears in  
the secondary display.  
3. Press or until the primary display shows the  
correct reading.  
4. Press to store the offset setting in memory.  
Remember to reset the offset to 0.0 when it is no longer  
needed. The offset automatically resets to 0.0 when you  
change the thermocouple type.  
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53IIB/54IIB  
Users Manual  
Enabling or Disabling Sleep Mode  
Setting the Time  
The thermometer enters sleep mode if no button press  
occurs for 20 minutes.  
1. Press or until the display shows the time if it  
is set or shows "- - : - -."  
Pressing any button wakes the thermometer and returns it  
to its previous state.  
2. Press to indicate you want to set the time.  
The left two digits blink.  
1. Press or until the display shows .  
3. Press or until the display shows the correct  
hour (24-hour format), and then press to select.  
2. Press to indicate that you want to change the  
sleep setting.  
The right two digits blink.  
The display shows  if sleep mode is on and  if  
sleep mode is off.  
4. Press or until the display shows the correct  
minutes, and then press to store the time in  
memory.  
3. Press or as needed until the display shows   
or .  
Note  
4. Press to store the sleep setting in memory.  
Holding down or causes the number to  
change more quickly.  
Sleep mode is enabled each time you turn on the  
thermometer and is automatically disabled in MIN MAX  
and logging modes.  
12  
 
 
53IIB/54IIB  
Measuring Temperatures  
Changing the Line Frequency  
Measuring Temperatures  
For optimum rejection of line noise, set the thermometer  
for the local line frequency as follows:  
Connecting a Thermocouple  
Thermocouples are color coded by type based on the  
North American ANSI Color Code:  
1. Press or until the display shows  .  
2. Press to indicate that you want to change the line  
Type  
Color  
Black  
Type  
R
Color  
Green  
Green  
Orange  
setting.  
J
3. Press or as needed until the display shows  
  or   (50 Hz or 60 Hz).  
K
T
E
Yellow  
Blue  
S
N
4. Press to store the line setting in memory.  
Purple  
1. Plug a thermocouple into the input connector(s).  
2. Set the thermometer for the correct thermocouple  
type.  
To change the thermocouple type, see “Changing  
Setup Options.”  
13  
 
 
53IIB/54IIB  
Users Manual  
Displaying Temperatures  
Holding the Displayed Temperatures  
1. Press to select the correct temperature scale.  
1. Press to freeze the readings on the display.  
2. Hold or attach the thermocouple(s) to the  
measurement location.  
The display shows .  
2. Model 54: Press to toggle showing the T1, T2, or  
The temperature reading appears in the selected  
display.  
T1-T2 readings in the primary or secondary display.  
3. Press again to turn off the HOLD function.  
3. Model 54: Press to toggle between showing the  
T1, T2, and T1-T2 reading in the primary or  
secondary display.  
Viewing the MIN, MAX, and AVG Readings  
1. Press to step through the maximum (MAX),  
minimum (MIN), or the average (AVG) readings.  
Notes  
The elapsed time since entering MIN MAX mode, or  
the time at which the minimum or maximum occurred,  
appears on the display.  
The display shows "- - - -" when a thermocouple  
is not connected.  
The display shows  (overload) when the  
temperature being measured is outside the  
thermocouple's valid range.  
2. Press , (CANCEL) to exit MIN MAX mode.  
Model 54: If only thermocouple T2 is connected,  
the T2 reading appears in the primary display.  
14  
 
 
53IIB/54IIB  
Using Memory  
Using the Offset to Adjust for Probe Errors  
Using Memory  
Use the offset option in Setup to adjust the thermometer's  
readings to compensate for the errors of a specific  
thermocouple.  
During a logging session the thermometer stores logged  
readings in its memory.  
At the end of the logging session you can view the logged  
readings on the display.  
1. Plug the thermocouple into the input connector.  
2. Place the thermocouple in a known, stable  
temperature environment (such as an ice bath or a  
dry well calibrator).  
You can also transfer the logged readings to a PC running  
FlukeView Forms software. (See "Communicating with a  
PC.")  
3. Allow the readings to stabilize.  
FlukeView Forms displays the logged readings on an  
online form, which you can print or store for later use.  
4. In Setup change the offset until the primary display  
reading matches the calibration temperature. (See  
"Changing Setup Options.")  
15  
 
 
53IIB/54IIB  
Users Manual  
Initial Conditions and Data Entries  
Starting and Stopping Logging  
Logged readings include initial conditions and data entries.  
Setup, memory clear, and PC communications are  
inaccessible during logging.  
The initial conditions are the thermocouple type and the  
offsets for each thermocouple input. You can only view  
initial conditions using FlukeView Forms.  
1. Set the logging interval. (See “Changing Setup  
Options.”)  
The data entries are a time stamp, the T1 reading, and the  
T2 and T1-T2 readings (Model 54). You can view these  
values by pressing or using FlukeView Forms.  
Temperature readings display 0.1 degree resolution in  
FlukeView Forms.  
2. Press to start logging.  
The display shows .  
3. Press again to stop logging.  
4. If you selected a manual logging interval, press   
each time you want to store logged readings in  
memory.  
The thermometer has 500 memory locations. The  
thermometer stores 499 sets of temperature readings and  
one set of initial conditions when logging continuously. It  
stores 250 sets of temperature readings and 250 sets of  
initial conditions when logging individual points manually.  
16  
 
 
53IIB/54IIB  
Using Memory  
Clearing Memory  
Viewing Logged Readings  
When memory is full,  appears on the display and  
logging stops. You can clear memory in normal or MIN  
MAX mode.  
1. Press to view logged readings.  
The display shows .  
2. Press or to scroll through the logged readings.  
Press , (CLEAR MEMORY) to delete logged  
readings from memory.  
The display shows each logged reading, its time  
stamp, and its memory location. For example,  
Figure 3 shows the logged reading stored at 2:02 PM  
in memory location 18.  
The display shows the following for 2 seconds.  
MEMORY  
   
aat03f.eps  
Figure 3. Logged Reading  
17  
 
 
53IIB/54IIB  
Users Manual  
3. Press to step through the minimum, maximum,  
average, and current logged reading. For example,  
Figure 4 shows the maximum reading in memory. The  
maximum reading occurred at 1:49 P.M. and was  
stored in memory location 5.  
Communicating with a PC  
You can transfer the contents of the thermometer’s  
memory to a PC using FlukeView Forms. The  
communication requires an IR (infrared) serial connection.  
Refer to the FlukeView Forms Installation Guide and  
FlukeView Help.  
FlukeView Forms places the logged readings into  
standard (default) or customized forms. The forms also  
display user comments. You can use these forms to  
satisfy ISO-9000 documentation requirements.  
When you send logged readings to a PC, all functions are  
disabled except power off, backlight, and turning off  
communication.  
aat04f.eps  
Press , (PC/IR SEND) to toggle the IR port  
on and off.  
Figure 4. Maximum Reading  
4. Press to stop viewing logged readings.  
The display shows:  
  
Note  
  
The thermometer calculates the minimum and  
maximum of all logging sessions in memory.  
When the IR port is enabled you can communicate with  
FlukeView Forms.  
The display shows "- - : - -" if the log is empty.  
18  
 
 
53IIB/54IIB  
Maintenance  
Calibration  
Maintenance  
To ensure that the thermometer performs to its accuracy  
specifications, Fluke recommends that you calibrate the  
thermometer annually, starting one year after purchase.  
Replacing the Batteries  
Refer to the safety information in Table 1 before replacing  
the batteries.  
To calibrate the thermometer, contact Fluke for the  
Service Center nearest you or follow the calibration  
procedure in the service manual listed in "Replacement  
Parts and Accessories."  
1. Turn off the thermometer if necessary.  
2. Loosen the screw and remove the battery door.  
3. Replace the three AA batteries.  
Specifications  
4. Replace the battery door and tighten the screw.  
Environmental  
-10 oC to 50 oC  
(14 oF to 122 oF)  
Cleaning the Case and Holster  
Operating  
Temperature  
Use soap and water or a mild commercial cleaner.  
-40 oC to +60 oC  
(-40 oF to +140 oF)  
Storage  
Wipe with a damp sponge or soft rag.  
Temperature  
Non condensing <10 oC (<50 oF)  
Humidity  
95 % RH: 10 oC to 30 oC (50 oF to 86 oF)  
75 % RH: 30 oC to 40 oC (86 oF to 104 oF)  
45 % RH: 40 oC to 50 oC (104 oF to 122 oF)  
19  
 
 
53IIB/54IIB  
Users Manual  
General  
80 PK-1 Thermocouple (supplied with  
thermometer)  
Weight  
280 g (10 oz)  
Type K, Chromel Alumel, bead style  
Type  
2.8 cm × 7.8 cm × 16.2 cm  
(1.1 in × 3 in × 6.4 in)  
Dimensions  
(without  
holster)  
-40 oC to +260 oC  
(-40 oF to +500 oF)  
1.1 oC ( 2.0 oF)  
Temperature  
Range  
Battery  
3 AA batteries  
Accuracy  
Certification  
Safety  
P,  
Electrical  
)
J-type: -210 oC to +1200 oC  
(-346 oF to +2192 oF)  
Measurement  
Range  
CAN/CSA C22.2 No. 61010-1-04, ANSI/UL  
61010-1:2004, EN/IEC 61010-1:2001  
K-type: -200 oC to +1372 oC  
(-328 oF to +2501 oF)  
EMC  
EN/IEC 61326-1:2006  
T-type: -250 oC to +400 oC  
(-418 oF to +752 oF)  
CAT I  
OVERVOLTAGE (Installation) CATEGORY  
I, Pollution Degree 2 per IEC1010-1*  
* Refers to the level of Impulse Withstand Voltage protection  
provided. Category 1 products should not be attached to mains  
circuits.  
E-type: -150 oC to +1000 oC  
(-238 oF to +1832 oF)  
N-type: -200 oC to +1300 oC  
(-328 oF to +2372 oF)  
R- and S-type: 0 oC to +1767 oC  
(+32 oF to +3212 oF)  
0.1 oC / oF / K <1000o  
Display  
Resolution  
1.0 oC / oF / K 1000o  
20  
 
 
53IIB/54IIB  
Replacement Parts and Accessories  
Electrical (cont.)  
Applicable  
Standards  
NIST-175  
Measurement  
J-, K-, T-, E-, and N-type: [0.05 % of  
Accuracy is specified for ambient temperatures between 18 oC  
(64 oF) and 28 oC (82 oF) for a period of 1 year. The above  
specifications do not include thermocouple error.  
Accuracy, T1, T2, reading + 0.3 oC (0.5 oF)] [below -100 oC  
or T1-T2  
(Model 54)  
(-148 oF): add 0.15 % of reading for J-,  
K-, E-, and N-type; and 0.45 % of reading  
for T-type] R- and S-type: [0.05 % of  
reading +0.4 oC (0.7 oF)]  
Replacement Parts and Accessories  
Temperature  
Coefficient  
0.01 % reading + 0.03 oC per oC  
Accessory  
Holster and Flex StandAssembly  
AA NEDA 15A IEC LR6 batteries  
80PK-1 K-Type Bead Thermocouple  
CD-ROM  
Part Number  
1272438  
376756  
(0.05 oF per oF) outside the specified +18  
oC to 28 oC (+64 oF to +82 oF) range  
[below -100 oC -148 oF): add 0.04 % of  
reading for J-, K-, E-, and N-type; and  
0.08 % of reading for T-type]  
773135  
Electromagnetic  
Compatibility  
Susceptibility: 2 oC ( 3.6 oF) for 80 MHz  
to 200 MHz in 1.5 V/m field, for 200 MHz  
to 1000 MHz in 3 V/m field.  
1276106  
1276123  
FVF-SC2  
Service Manual  
Emmisions: Commercial Limits per  
EN50081-1  
FlukeView Forms  
Maximum  
1 V (Maximum voltage difference between  
T1 and T2)  
Differential  
Common Mode  
Voltage  
Temperature  
Scale  
ITS-90  
21  
 
 
53IIB/54IIB  
Users Manual  
22  
 

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