Fluke Thermometer 1523 User Manual

1523, 1524  
Thermometer Readout  
User’s Guide  
Rev. 891001_EN  
 
Limited Warranty & Limitation of Liability  
Each product from Fluke Corporation, Hart Scientific Division (“Hart”) is warranted to be free from defects in material  
and workmanship under normal use and service. The warranty period is one year(s) for the Reference Thermometer. The  
warranty period begins on the date of the shipment. Parts, product repairs, and services are warranted for 90 days. The  
warranty extends only to the original buyer or end-user customer of a Hart authorized reseller, and does not apply to fuses,  
disposable batteries or to any other product, which in Hart’s opinion, has been misused, altered, neglected, or damaged  
by accident or abnormal conditions of operation or handling. Hart warrants that software will operate substantially in ac-  
cordance with its functional specifications for 90 days and that it has been properly recorded on non-defective media. Hart  
does not warrant that software will be error free or operate without interruption. Hart does not warrant calibrations on the  
Reference Thermometer.  
Hart authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no  
authority to extend a greater or different warranty on behalf of Hart. Warranty support is available if product is purchased  
through a Hart authorized sales outlet or Buyer has paid the applicable international price. Hart reserves the right to  
invoice Buyer for importation costs of repairs/replacement parts when product purchased in one country is submitted for  
repair in another country.  
Hart’s warranty obligation is limited, at Hart’s option, to refund of the purchase price, free of charge repair, or replace-  
ment of a defective product which is returned to a Hart authorized service center within the warranty period.  
To obtain warranty service, contact your nearest Hart authorized service center or send the product, with a description  
of the difficulty, postage, and insurance prepaid (FOB Destination), to the nearest Hart authorized service center. Hart  
assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer, transportation  
prepaid (FOB Destination). If Hart determines that the failure was caused by misuse, alteration, accident or abnormal con-  
dition or operation or handling, Hart will provide an estimate or repair costs and obtain authorization before commencing  
the work. Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer will be billed  
for the repair and return transportation charges (FOB Shipping Point).  
THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WAR-  
RANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF  
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. HART SHALL NOT BE LIABLE FOR ANY  
SPECIAL, INDIRECT, INCIDENTAL. OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF  
 
DATA, WHETHER ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT, TORT, RELIANCE  
OR ANY OTHER THEORY.  
Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of  
incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any  
provision of this Warranty is held invalid or unenforceable by a court of competent jurisdiction, such holding will not af-  
fect the validity or enforceability of any other provision.  
Fluke Corporation, Hart Scientific Division  
799 E. Utah Valley Drive • American Fork, UT 84003-9775 • USA  
Phone: +1.801.763.1600 • Telefax: +1.801.763.1010  
E-mail: support@hartscientific.com  
Specifications subject to change without notice. •Copyright © 2008 • Printed in USA  
 
Table of Contents  
i
 
 
Before You Start  
Standard Equipment  
1 BeforeYou Start  
1.1 Introduction  
The Reference Thermometer Readouts (1523, 1524) are designed to be reliable, stable, temperature measur-  
ing instruments that can be used in the field or laboratory. They offer accuracy, portability, and speed for near-  
ly every field calibration application. The instruments have been designed with the field user in mind and are  
easy to use while maintaining stability, uniformity, and accuracy comparable to some laboratory instruments.  
Your Fluke 1523 and 1524 thermometer readout is a handheld, battery operated instrument that measures tem-  
perature using Platinum resistance Thermometers (PRT), Thermistors, and Thermocouples (TC).  
1.2 Standard Equipment  
Unpack the instrument carefully and inspect it for any damage that may have occurred during shipment. If  
there is shipping damage, notify the carrier immediately.  
Verify that the following components are present:  
 
1523/1524 Reference Thermometer Readout with 3 AA batteries  
●  
AC Adapter, with power cord  
●  
RS-232 Cable  
●  
User’s Guide  
●  
Documentation CD  
●  
Report of Calibration and calibration label  
●  
Clamp-on ferrite(s)  
1
 
 
1523, 1524 Thermometer Readout  
Safety Information  
1.3 Safety Information  
The Reference Thermometer is designed in accordance with EN 61010-1 {2nd Edition}, and CAN/CSA 22.2  
No 61010.1-04. Use this instrument only as specified in this manual, otherwise the protection provided by the  
instrument may be impaired.  
A Warning identifies conditions and actions that pose hazard(s) to the user; a Caution identifies conditions  
and actions that may damage the instrument being used.  
4.  
1.3.1  
Warning  
To avoid possible electric shock or personal injury:  
●  
Do not use the reference thermometer in environments other than those listed in the user’s guide.  
●  
Do not use the reference thermometer for any application other than that which is specified. The  
instrument was designed for temperature measurement and calibration. Any other use of the instrument  
may cause unknown hazards to the user.  
●  
If the reference thermometer is used in a manner not in accordance with the equipment design, the  
operation and the protection provided by the instrument may be impaired. In addition, safety hazards  
may arise.  
●  
Do not apply more than the rated voltage, as marked on the reference thermometer, between the inputs,  
or between any input and earth ground (30 V, 24 mA max all terminals).  
●  
Follow all equipment safety procedures.  
●  
Calibration equipment should only be used by trained personnel.  
●  
The reference thermometer is intended for indoor use only.  
●  
Before you use the instrument, inspect the case. Look for cracks or missing plastic. Pay particular  
attention to the insulation surrounding the connectors. Do not use the reference thermometer if it  
2
 
 
Before You Start  
Safety Information  
appears damaged or operates abnormally. Protection may be impaired. When in doubt, have the  
instrument serviced.  
●  
●  
●  
●  
●  
Always use an isolated RTD or PRT (metal sheath isolated from lead wires).  
Make sure the battery door is closed and latched before you operate the reference thermometer.  
Do not operate the reference thermometer around explosive gas, vapor, or dust.  
For battery operation use only 3 AA batteries, properly installed in the reference thermometer case.  
1524 model, thermocouples can only be used on channel 1.  
1.3.2 Cautions  
To avoid possible damage to the reference thermometer or to equipment under test:  
●  
Do not apply more than the rated voltage, as marked on the reference thermometer, between the inputs,  
or between any input and earth ground (30 V 24 mA max all terminals).  
●  
Unless recalibrating the instrument DO NOT change the values of the calibration constants from  
the factory set values. The correct setting of these parameters is important to the safety and proper  
operation of the instrument.  
●  
The instrument and any thermometer probes used with it are sensitive instruments that can be easily  
damaged. Always handle these devices with care. DO NOT allow them to be dropped, struck, stressed,  
or overheated.  
●  
●  
●  
DO NOT operate this instrument in an excessively wet, oily, dusty, or dirty environment.  
Use the proper probes, function and range for your measurement.  
Ensure probe coefficients are downloaded.  
3
 
 
1523, 1524 Thermometer Readout  
Safety Information  
Table 1 International Symbols  
Symbol  
Description  
Symbol  
Description  
AC (Alternating Current)  
PE Ground  
AC-DC  
Battery  
Hot Surface (Burn Hazard)  
Read the User’s Guide (Important Information)  
Complies with European Union directives  
Off  
DC  
On  
Double Insulated  
Electric Shock  
Canadian Standards Association  
C-TICK Australian EMC mark  
The European Waste Electrical and Electronic  
Equipment (WEEE) Directive (2002/96/EC) mark.  
Fuse  
4
 
   
Before You Start  
Using Clamp-On Ferrites  
1.4 CE Comments  
1.4.1 EMC Directive  
Hart Scientific’s equipment has been tested to meet the European Electromagnetic Compatibility Directive  
(EMC Directive, 2004/108/EC ). The Declaration of Conformity for your instrument lists the specific stan-  
dards to which the unit was tested.  
The instrument was designed specifically as a test and measuring device. Compliance to the EMC direc-  
tive is through EN 61326-1:2006 Electrical equipment for measurement, control and laboratory use – EMC  
requirements  
As noted in the EN 61326-1, the instrument can have varying configurations. The instrument was tested in a  
typical configuration with shielded RS-232 cables.  
1.4.2 Immunity Testing  
The instrument was tested to the requirements for laboratory locations.  
1.5 Using Clamp-On Ferrites  
Clamp-on ferrites are provided for use in improving the instrument’s electromagnetic (EM) immunity in envi-  
ronments of excessive EM interference, like areas of heavy industrial equipment. We recommend placing the  
ferrites on the cables of probes attached to the instrument.  
To attach a ferrite to a probe cable, make a loop in the cable near the connector and clamp the ferrite around  
half of the loop as shown in the diagram. The ferrite can be easily detached and moved to a new probe when  
needed. (See Figure 1 on next page.)  
5
 
 
1523, 1524 Thermometer Readout  
Emissions Testing  
probe cable  
clamp-on ferrite  
Figure 1 Clamp-On Ferrite  
1.6 Emissions Testing  
The instrument fulfills the limit requirements for Class B.  
1.7 Low Voltage Directive (Safety)  
In order to comply with the European Low Voltage Directive (2006/95/EC), Fluke equipment has been de-  
signed to meet the EN 61010-1.  
6
 
   
Before You Start  
Authorized Service Centers  
1.8 Authorized Service Centers  
Please contact one of the following authorized Service Center to coordinate service on your Fluke product:  
Fluke Corporation  
Hart Scientific Division  
Phone: +1.801.763.1600  
Fluke Nederland B.V.  
Phone: +31-402-675300  
Fluke Int'l Corporation - CHINA  
Phone: +86-10-6-512-3436  
Fluke South East Asia Pte Ltd. - SINGAPORE  
Phone: +65-6799-5588  
When contacting a Service Center for support, please have the following information available:  
●  
Model Number  
●  
Serial Number  
●  
Complete description of the problem  
7
 
   
 
Quick Start  
Setup  
2 Quick Start  
2.1 Setup  
Table 2 1523 Input/Output Connections  
No. Name Description  
1
2
4
Serial  
Serial interface connector  
Connector, T1  
Power  
Sensor Connector, Channel 1  
External Power adapter connection  
V MAX  
2 30  
12V DC  
RS232  
4
1
Figure 2 Input/Output Connections - 1523  
9
 
 
1523, 1524 Thermometer Readout  
Setup  
Table 3 1524 Input/Output Connections  
No Name Description  
1
2
3
4
Serial  
Serial interface connector  
Connector, T1  
Connector, T2  
Power  
Sensor Connector, Channel 1  
Sensor Connector, Channel 2  
External Power adapter connection  
4
1
3
2
T130 V MAX T2  
12V DC  
RS232  
Figure 3 Input/Output Connections - 1524  
10  
 
 
Quick Start  
Setup  
Figure 4 Keys  
11  
 
 
1523, 1524 Thermometer Readout  
Setup  
Table 4 1523 Key Functions  
No  
Key  
Description  
1
Power on or off  
2
3
Yellow Second or Special Function Key  
Turns the backlight on or off  
4
5
6
1st Press: MAX, 2nd Press: MIn, 3rd Press: AVE, 4th Press: STD DEV  
Units, °C/°F  
STATS  
C F  
° °  
1st press - Holds value on screen "-- HOLD --" across bottom of screen. 2nd press - Releases Screen hold.  
HOLD  
SETUP  
SAVE  
7
Enters setup menu, see menu structure  
8
9
Saves measurement as a logged data point  
Arrows increment or decrement selections in an active field. In Graph Mode, Arrows change the scale of the graph.  
Selects highlighted selection, Saves a new selection.  
10  
ENTER  
12  
 
 
Quick Start  
Setup  
No  
Key  
Description  
RECALL  
11  
1st Press - Enters Recall menu, 2nd Press - Exits Recall Menu  
NEXT  
12  
13  
14  
15  
16  
Moves down to next option on screen.  
“RESET” - Resets Stats Data  
STATS  
+
mV” - Toggles from °C to or to °C (PRT, thermistor), °C to mV or mV to °C (TC)  
“TREND” - Starts Graphing data  
C F  
° °  
+
+
HOLD  
+
ENTER  
“HOME” Returns user to main screen  
13  
 
1523, 1524 Thermometer Readout  
Setup  
Figure 5 1523 Menu  
14  
 
 
Quick Start  
Setup  
Figure 6 1523 Menu (cont)  
15  
 
 
1523, 1524 Thermometer Readout  
Setup  
Figure 7 1523 Menu (cont)  
16  
 
 
Quick Start  
Setup  
Table 5 1524 Key Functions  
No  
Key  
Description  
1
Power on or off  
2
3
Yellow Second or Special Function Key  
Turns the backlight on or off  
4
5
6
1st Press: Max, 2nd Press: Min, 3rd Press: Ave, 4th Press: STD DEV  
Units, °C/°F  
STATS  
C F  
° °  
1st press - Holds value on screen "-- HOLD --" across bottom of screen. 2nd press - Releases Screen hold.  
Enters setup menu, see menu structure  
HOLD  
SETUP  
SAVE  
7
8
9
Saves measurement as a logged data point  
Arrows increment or decrement selections in an active field. In Graph Mode, Arrows change the scale of the  
graph.  
17  
 
 
1523, 1524 Thermometer Readout  
Setup  
No  
Key  
Description  
10  
ENTER  
Selects highlighted selection, Saves a new selection.  
RECALL  
11  
12  
13  
1st press - Enters Recall Menu, 2nd press - Exits Recall Menu  
Moves down to next option on screen.  
NEXT  
“RESET” - Resets Stats Data  
STATS  
+
+
14  
15  
16  
17  
mV” - Toggles from °C to or to °C (PRT, thermistor), °C to mV or mV to °C (TC)  
“TREND” - Starts Graphing data  
C F  
° °  
+
HOLD  
SAVE  
“LOG” - Log a series of measurements, see Auto Log in menu structure  
“HOME” Returns user to main screen  
+
+
ENTER  
18  
 
Quick Start  
Setup  
Figure 8 1524 Menu  
19  
 
 
1523, 1524 Thermometer Readout  
Setup  
Figure 9 1524 Menu (cont)  
20  
 
 
Quick Start  
Setup  
Figure 10 1524 Menu (cont)  
21  
 
 
1523, 1524 Thermometer Readout  
Setup  
Figure 11 1524 Menu (cont)  
22  
 
 
Quick Start  
Setup  
Figure 12 1524 Menu (cont)  
23  
 
 
1523, 1524 Thermometer Readout  
Specifications  
Figure 13 1524 Menu (cont)  
2.2 Specifications  
Specifications are based on a one year calibration cycle and apply from 13 °C to 33 °C unless stated  
otherwise. All specifications assume a five minute warm up period.  
Table 6 General Specifications  
Operating  
–10 °C to 60 °C  
Temperature†  
Storage Temperature  
Operating altitude  
–20 °C to 70 °C  
10,000 meters above mean sea level  
0 % to 90 % (non condensing)  
Relative Humidity (%  
RH operating without  
condensation)  
Vibration  
Random, 2g, 5–500 Hz  
24  
 
 
Quick Start  
Specifications  
Power requirements  
Size  
3 AA alkaline batteries  
12 V dc universal power supply  
96 x 200 x 47 mm  
(3.75 x 7.9 x 1.86 inches)  
Weight  
Safety  
0.65 kg (1.4 lb)  
EN 61010-1:2001, CAN/CSA C22.2 No.  
61010.1-04  
Environmental conditions for all specifications: 13 °C to 33 °C  
Table 7 Millivolt Measurement  
Range  
Resolution  
Accuracy  
–10 mV to 75 mV  
0.001 mV  
(0.005 % + 5 µV)  
Temperature Coefficient ( –10 °C to 13 °C, +33 °C to 60 °C):  
(0.001 %/°C + 1 µV/°C)  
Table 8 Ohms Measurement, RTDs  
Accuracy  
4 Wire  
Ohms Range  
0 to 400 Ω  
(0.004 % + 0.002 )  
Temperature Coefficient ( –10 °C to 13 °C, +33 °C to 60 °C):  
0.0008 %/°C + 0.0004 Ω  
Excitation Current: 1 mA  
25  
 
 
1523, 1524 Thermometer Readout  
Specifications  
Table 9 Ohms Measurement, Thermistor  
Ohms Range  
200 to 50 kΩ  
50 kto 500 kΩ  
Accuracy Ω, 4 Wire  
(0.01 % + 0.5 )  
(0.03 %)  
Temperature Coefficient ( –10 °C to 13 °C , +33 °C to 60 °C):  
0.002 %/°C + 0.1 (0 to 50 k)  
0.06 %/°C + 0.1 (50 kto 500 k)  
Excitation Current:  
10 µA (0 to 50 k)  
2 µA (50 kto 500 k)  
Equivalent temperature accuracies derived from primary specifications (, mV)  
Table 10 Temperature, Thermocouples  
Measure  
Accuracies (ITS-90)  
Type  
Range  
B
600 °C to 800 °C  
800 °C to 1000 °C  
1000 °C to 1800 °C  
0.85 °C  
0.68 °C  
0.57 °C  
C
E
J
100 °C to 550 °C  
550 °C to 2300 °C  
0.32 °C  
0.71 °C  
–200 °C to 0 °C  
0 °C to 950 °C  
0.52 °C  
0.22 °C  
–200 °C to 0 °C  
0 °C to 1200 °C  
0.52 °C  
0.23 °C  
K
–200 °C to 0 °C  
0 °C to 1370 °C  
0.61 °C  
0.24 °C  
26  
 
 
Quick Start  
Specifications  
Measure  
Accuracies (ITS-90)  
Type  
Range  
L
–200 °C to 0 °C  
0 °C to 900 °C  
0.36 °C  
0.23 °C  
M
–20 °C to 0 °C  
0 °C to 400 °C  
400 °C to 1400 °C  
0.26 °C  
0.25 °C  
0.22 °C  
N
R
–200 °C to 0 °C  
0 °C to 1300 °C  
0.72 °C  
0.28 °C  
–20 °C to 0 °C  
0 °C to 500 °C  
500 °C to 1750 °C  
1.09 °C  
0.97 °C  
0.49 °C  
S
–20 °C to 0 °C  
0 °C to 500 °C  
500 °C to 1750 °C  
1.05 °C  
0.95 °C  
0.56 °C  
T
–200 °C to 0 °C  
0 °C to 400 °C  
0.60 °C  
0.25 °C  
U
–200 °C to 0 °C  
0 °C to 400 °C  
0.54 °C  
0.24 °C  
Resolution: 0.01 °  
Note 1: Accuracies are based on internal Reference  
Junction Compensation. Refer to Technical manual for  
equivalent external reference accuracies.  
27  
 
1523, 1524 Thermometer Readout  
Specifications  
Table 11 Temperature, RTD Ranges,  
and Accuracies (ITS-90)  
Accuracy °C 4 Wire Probe  
0.011 at –100 °C  
0.015 at 0 °C  
0.019 at 100 °C  
0.023 at 200 °C  
0.031 at 400 °C  
0.039 at 600 °C  
Resolution: 0.001°C (0.001°F)  
Table 12 Temperature, Thermistor  
Accuracy °C  
0.002 at 0 °C  
0.003 at 25 °C  
0.006 at 50 °C  
0.014 at 75 °C  
0.030 at 100 °C  
Resolution: 0.001 °C (0.001 °F)  
Based on a 10 k(at 25 °C) thermister  
with a beta value of 4000 . See  
technical manual for details.  
28  
 
 

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