Fluke 1522 User Manual

Hart Scientific

1522

Handheld Thermometer Readout

User’s Guide

Rev. 5B2202

Fluke Corporation, Hart Scientific Division

799 E. Utah Valley Drive • American Fork, UT 84003-9775 • USA
Phone: [phone] • Telefax: +1.801.763.1010
E-mail: [e-mail]

www.hartscientific.com

Subject to change without notice. • Copyright © 2005 • Printed in USA

Rev. 5B2202

Table of Contents

1 Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2.1 WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2.2 CAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Authorized Service Centers. . . . . . . . . . . . . . . . . . . . . . 4

2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 Specifications and Environmental Conditions . . . . . . . . . . 9

3.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.2 Environmental Conditions. . . . . . . . . . . . . . . . . . . . . . 10

3.3 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4 Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2 Use Proper Care with the 1522 and Accessories . . . . . . . . . . 13

4.3 Learn About the Features and Components . . . . . . . . . . . . . 13

4.4 Connect the Probe . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.5 Connect the Power Source . . . . . . . . . . . . . . . . . . . . . 14

4.6 Switch the Power On . . . . . . . . . . . . . . . . . . . . . . . . 14

4.7 Measure Temperature . . . . . . . . . . . . . . . . . . . . . . . . 14

5 Parts and Controls . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1 Front View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.2 Top and Side View . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.3 Back View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.4 Internal Features. . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.5 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6 General Operation . . . . . . . . . . . . . . . . . . . . . . . . 25

6.1 Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.2 DC Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.3 Power Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.4 Display and Backlight . . . . . . . . . . . . . . . . . . . . . . . . 27

i

6.5 Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.6 INFO-CON Connector . . . . . . . . . . . . . . . . . . . . . . . 29

7 Display Functions. . . . . . . . . . . . . . . . . . . . . . . . . 31

7.1 Blank Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.2 Min/Max Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.3 Demand Logging . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.3.1 Demand Log Label and Data Storage . . . . . . . . . . . . . . . . . . . . . 33

7.3.2 Dump Data? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.3.3 Clear Log?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.4 Auto Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.4.1 Clear Autolog? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.4.2 Log Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.4.3 Autolog Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.4.4 Autologged Data Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.4.5 Dump Data? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.5 Delta(x) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.6 Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.7 Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.8 Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.9 CAL MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.9.1 Mtr Due . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.9.2 Prb Due . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.9.3 Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.9.4 Passcode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.9.5 Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.9.6 Probe Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.9.7 Prb #. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.9.8 Prb Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.9.9 ITS-90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.9.10 IEC751 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.9.11 CVD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.9.12 YSI-400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.9.13 THERM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.9.14 Probe Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.9.15 PCal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.9.16 PDue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.9.17 Digital Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.9.18 MCal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.9.19 MDue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.9.20 CAL1 and CAL2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8 Communications Interface. . . . . . . . . . . . . . . . . . . . 47

8.1 RS-232 Connection . . . . . . . . . . . . . . . . . . . . . . . . . 47

8.2 Communication Command List . . . . . . . . . . . . . . . . . . . 48

ii

8.2.1 Primary Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8.2.2 Calibration Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

9 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

9.1 Required Equipment. . . . . . . . . . . . . . . . . . . . . . . . . 53

9.2 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . 53

10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

11 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . 57

11.1 An Error Message Is Displayed . . . . . . . . . . . . . . . . . . . 57

11.2 Downloading Autologged Data . . . . . . . . . . . . . . . . . . . 58

11.3 Placement of Infrared Dongle for IR Data Transfer. . . . . . . . . 59

11.4 CE Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

11.4.1 EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

11.4.1.1 Immunity Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

11.4.1.2 Emission Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

11.4.2 Low Voltage Directive (Safety) . . . . . . . . . . . . . . . . . . . . . . . . . 61

iii

Figures and Tables

Table 1 International Electrical Symbols . . . . . . . . . . . . . . . . . . . . . 1

Figure 1 Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 2 Top and Side View . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 3 INFO-CON Connector . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 4 Infrared Dongle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 5 Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 6 12V DC Power Source Polarity . . . . . . . . . . . . . . . . . . . . . 27

Figure 7 Probe Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 8 Operating Modes Flowchart . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 9 RS-232 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 10 Infrared Dongle Position . . . . . . . . . . . . . . . . . . . . . . . . . 60

iv

1 Before You Start

1.1 Symbols Used

Table 1 lists the International Electrical Symbols. Some or all of these symbols
may be used on the instrument or in this manual.

Tabl e 1 International Electrical Symbols

Symbol Description

AC (Alternating Current)

AC-DC

Battery

CE Complies with European Union Directives

1 Before You Start

Symbols Used

DC

Double Insulated

Electric Shock

Fuse

PE Ground

Hot Surface (Burn Hazard)

Read the User’s Manual (Important Information)

Off

On

1

1522 Handheld Thermometer Readout

User’s Guide

Symbol Description

Canadian Standards Association

OVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per IEC1010-1 re
fers to the level of Impulse Withstand Voltage protection provided. Equipment of
OVERVOLTAGE CATEGORY II is energy-consuming equipment to be supplied from
the fixed installation. Examples include household, office, and laboratory appliances.

C-TIC Australian EMC Mark

The European Waste Electrical and Electronic Equipment (WEEE) Directive
(2002/96/EC) mark.

1.2 Safety Information

Use this instrument only as specified in this manual. Otherwise, the protection
provided by the instrument may be impaired.

The following definitions apply to the terms “Warning” and “Caution”.

• “WARNING” identifies conditions and actions that may pose hazards to

the user.

• “CAUTION” identifies conditions and actions that may damage the in-

strument being used.

1.2.1

WARNINGS

To avoid personal injury, follow these guidelines.

•

DO NOT use this unit in environments other than those listed in the
User’s Guide.

•

Follow all safety guidelines listed in the User’s Guide.

•

Calibration equipment should only be used by trained personnel.

•

This instrument can measure extreme temperatures. Precautions must be
taken to prevent personal injury or damage to objects. Probes may be ex
tremely hot or cold. Cautiously handle probes to prevent personal injury.
Carefully place probes on a heat/cold resistant surface or rack until they
reach room temperature.

•

The AC adapter can present safety concerns if misused or damaged. To
avoid the risk of electric shock or fire, do not use the AC adapter outdoors
or in a dusty, dirty, or wet environment. If the cord, case, or plug of the
adapter is damaged in any way, discontinue its use immediately and have
it replaced. Never disassemble the AC adapter. Use only the AC adapter
provided with the instrument or equivalent adapter recommended by the
manufacturer of this instrument.

-

-

2

1 Before You Start

Safety Information

The AC adapter has circuits with high voltage inside that could present

•

danger of electrical shock or fire if exposed. If the AC adapter is damaged
in any way or becomes hot, discontinue its use immediately, disconnect it
from any AC supply, and have it replaced. Do not attempt to open, repair,
or continue using a damaged or defective AC adapter.

The instrument batteries can present danger if not handled properly. To

•

avoid the risk of exposure to dangerous substances or explosion, immedi
ately remove the batteries and discontinue use if they leak or become
damaged. Never allow the batteries to be shorted, heated, punctured, or
dropped. If the instrument is physically damaged, immediately remove
the batteries to insure that they do not become shorted. While removed
from the instrument, store the batteries in a location so that they do not
come into contact with metal or fluids that might short circuit the batteries
and where they are safe from excessive temperatures. Used batteries must
be disposed of properly. Check your local regulations for additional infor
mation. Never dispose of batteries in fire which may result in explosion
with the possibility of personal injury or property damage.

• DO NOT use this instrument in combination with any probe (RTD or

thermistor) to measure the temperature or resistance of any device that is
electrically energized. Severe electric shock, personal injury, or death may
occur.

-

-

1.2.2

CAUTIONS

To avoid possible damage to the instrument, follow these guidelines.

• If the instrument is dropped, struck, or handled in a way that causes inter-

nal or external physical damage, immediately unplug the AC adapter, re­move the batteries, discontinue use, and contact the factory for repair. Do
not attempt to disassemble or repair the instrument, batteries, or AC
adapter. Refer repairs or replacement components to the manufacturer.

•

The instrument and thermometer probes are sensitive and can be easily
damaged. Always handle these devices with care. DO NOT allow them to
be dropped, struck, stressed, or overheated.

•

DO NOT leave the AC adapter plugged in for more than 24 consecutive
hours or the battery life could be degraded.

•

Probes are fragile devices which can be damaged by mechanical shock,
overheating, and absorption of moisture or fluids in the wires or hub.
Damage may not be visibly apparent but nevertheless can cause drift, in
stability, and loss of accuracy. Observe the following precautions:

•

DO NOT allow probes to be dropped, struck, bent, or stressed.

•

DO NOT overheat probes beyond their recommended temperature range.

•

DO NOT allow any part of the probe other than the sheath to be im
mersed in fluid.

•

DO NOT allow the probe hub or wires to be exposed to excessive temper
atures.

-

-

-

3

1522 Handheld Thermometer Readout

User’s Guide

Keep the probe wires clean and away from fluids.

•

1.3 Authorized Service Centers

Please contact one of the following authorized Service Centers to coordinate
service on your Hart product:

Fluke Corporation, Hart Scientific Division

799 E. Utah Valley Drive

American Fork, UT 84003-9775

USA

Phone: [phone]

Telefax: +1.801.763.1010

E-mail: [e-mail]

Fluke Nederland B.V.

Customer Support Services

Science Park Eindhoven 5108

5692 EC Son

NETHERLANDS

Phone: [phone]

Telefax: [phone]

E-mail: [e-mail]

Fluke Int'l Corporation

Service Center - Instrimpex

Room 2301 Sciteck Tower

22 Jianguomenwai Dajie

Chao Yang District

Beijing 100004, PRC

CHINA

Phone: [phone]

Telefax: [phone]

E-mail: [e-mail]

4

1 Before You Start

Authorized Service Centers

Fluke South East Asia Pte Ltd.

Fluke ASEAN Regional Office

Service Center

60 Alexandra Terrace #03-16

The Comtech (Lobby D)

118502

SINGAPORE

Phone: [phone]

Telefax: [phone]

E-mail: [e-mail]

When contacting these Service Centers for support, please have the following

information available:

• Model Number

• Serial Number

• Voltage

• Complete description of the problem

5

2 Introduction

2 Introduction

The Hart 1522 is a low-cost, high-accuracy digital thermometer readout de
signed to be used with PRTs and thermistors. The unique combination of fea
tures makes this instrument suitable for a wide variety of applications in
industry. Features and capabilities of the 1522 include the following:

Accepts input from platinum resistance thermometers (PRTs) and therm

•

istors

Works with Hart’s INFO-CON probe connector (which is partially based

•

on U.S. Patent 5,857,777) to automatically recognize the type of sensor
and its characteristics

Alerts the operator automatically when the probe calibration or meter cal

•

ibration expires

Measures with an accuracy of ±0.025°C at 25°C with PRTs and ±0.005°C

•

at 25°C with thermistors

• Accepts three- or four-wire sensors to eliminate lead resistance errors

• Measures with a fast one-second measurement cycle

• Displays maximum, minimum, and delta temperatures

• Uses a unique factory-assigned passcode to protect programmed settings

• Displays measurements and settings on a high-contrast LCD display

• Communicates with other equipment or a computer using an RS-232 se-

rial interface

• Can be powered from its AC adapter or rechargeable battery

• Stores up to 10,000 readings with reading, units, date, time, and label in

autologging mode at user selected intervals

•

Stores up to 100 readings with reading, units, date, time, and label in de
mand logging mode

•

Contains an infrared interface for fast downloading of logged data

•

Stores 25 labels (8 characters) for easy recognition of logged data

•

Stops logging once maximum readings are stored. Memory must be
cleared to store additional data

•

Starts and stops logging both from the front panel and through the
RS-232 and infrared interfaces

•

Allows user to select a label for every reading stored in demand logging
mode

-

-

-

-

-

7

3 Specifications and Environmental Conditions

3 Specifications and Environmental

Conditions

3.1 Specifications

Specifications

Resistance Range

Resistance Accuracy, PRT, one

†

year

Resistance Accuracy,
thermistor, one year

Temperature Range PRT: –200°C to 962°C (–328°F to 1764°F)

Temperature Accuracy, PRT†–200°C to 100°C: ±0.025°C (±0.045°F)

Temperature Accuracy,

2.25 k

Ω

thermistor

Temperature Accuracy,
10 k

Ω

thermistor

Temperature Accuracy,
100 k

Ω

thermistor

Resistance Resolution

Temperature Resolution 0.001°C, F, K, R

Probe IEC-751 or DIN-43760 PRT

Probe Connector Hart INFO-CON connector

Maximum Acceptable Probe
Lead Resistance

Probe Excitation Current PRT: 0.5 mA

Measurement Period 1 second

†

†

†

†

Ω

to 500 k

0

0Ωto 25Ω: 0.002
25Ωto 400Ω: 0.008% (80 ppm) of reading

0Ωto2kΩ:0.4
2kΩto 200 kΩ: 0.02% (200 ppm) of reading
200 k

Thermistor: –50°C to 150°C (–58°F to 302°F)

100°C to 400°C: 0±.05°C (±0.09°F)
400°C to 800°C: ±0.1°C (±0.18°F)
800°C to 962°C: ±0.15°C (±0.27°F)

–50 to 25°C: ±0.005°C (±0.009°F)
25°C to 50°C: ±0.01°C (±0.018°F)
50°C to 75°C: ±0.03°C (±0.054°F)
75°C to 100°C: ±0.08°C (±0.144°F)

0 to 50°C: ±0.005°C (±0.009°F)
50°C to 75°C: ±0.01°C (±0.018°F)
75°C to 100°C: ±0.02°C (±0.036°F)
100°C to 125°C: ±0.05°C (±0.09°F)
125°C to 150°C: ±0.1°C (±0.18°F)

0 to 50°C: 0.006°C (0.011°F)
50°C to 150°C: 0.009°C (0.016°F)

0.001

Callendar-Van Dusen calibrated PRT; nominal 100
ITS-90 calibrated 25Ωor 100ΩPRT
YSI-400 series or equivalent 2252
Steinhart-Hart thermistor polynomial; nominal R(25°C) 2k
100k

10

Thermistor: 5

Ω

Ω

Ω

Ω

to 500 kΩ: 0.03% (300 ppm) of reading

Ω

Ω

Ω

μ

A

Ω

thermistor

Ω

Ω

to

9

1522 Handheld Thermometer Readout

User’s Guide

Digital Filter Exponential with adjustable time constant (1 to 60 seconds)

Remote Communications RS-232 serial, infrared

Display LCD, 6-digit x 7-segment with 16-character alphanumeric

Operating Temperature Range 0 to 40°C (32 to 104°F) absolute

Power 12 VDC (AC adapter included)

Safety OVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per

Size 7.75"H x4.2"Wx1.5"D (20 cm H x 11 cm W x 4 cm D)

Weight 0.4kg(1.0lb.)

†

Accuracy specifications apply from 15 to 35°C. Accuracy specifications over the entire absolute operating
range are 1.5 times the stated values. Temperature accuracy does not include probe uncertainty or probe
characterization errors. The practical measurement range may be limited by the sensor.

3.2 Environmental Conditions

15 to 35°C (59 to 95°F) full accuracy

Rechargeable NiMH batteries (included)

IEC1010-1 refers to the level of Impulse Withstand Voltage protec
tion provided. Equipment of OVERVOLTAGE CATEGORY II is en
ergy-consuming equipment to be supplied from the fixed installation.
Examples include household, office, and laboratory appliances.

-

-

Although the instrument has been designed for optimum durability and trou­ble-free operation, it must be handled with care. The instrument should not be
operated in an excessively dusty, dirty, or wet environment. Maintenance and
cleaning recommendations can be found in the Maintenance section of this
manual.

For full accuracy, operate the instrument in ambient temperatures between
15-35°C (59-95°F). Do not operate the instrument in an environment colder
than 5°C (41°F) or warmer than 50°C (122°F).

The instrument operates safely under the following conditions:

•

Operating temperature range: absolute 5–50°C (41–122°F);
full accuracy15-35°C (59-95°F)

•

Ambient relative humidity: 15-50%

•

Pressure: 75kPa-106kPa

•

Vibration should be minimized

•

Altitude less than 2,000 meters

•

Indoor use only

3.3 Warranty

Fluke Corporation, Hart Scientific Division (Hart) warrants this product to be
free from defects in material and workmanship under normal use and service
for a period as stated in our current product catalog from the date of shipment.

10

3 Specifications and Environmental Conditions

Warranty

This warranty extends only to the original purchaser and shall not apply to any
product which, in Hart’s sole opinion, has been subject to misuse, alteration,
abuse or abnormal conditions of operation or handling.

Software is warranted to operate in accordance with its programmed instruc

-

tions on appropriate Hart products. It is not warranted to be error free.

Hart’s obligation under this warranty is limited to repair or replacement of a
product which is returned to Hart within the warranty period and is determined,
upon examination by Hart, to be defective. If Hart determines that the defect or
malfunction has been caused by misuse, alteration, abuse or abnormal condi
tions or operation or handling, Hart will repair the product and bill the pur

-

-

chaser for the reasonable cost of repair.

To exercise this warranty, the purchaser must forward the product after calling
or writing an Authorized Service Center (see Section 1.3). The Service Center
assumes NO risk for in-transit damage.

THE FOREGOING WARRANTY IS PURCHASER’S SOLE AND EXCLU
SIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EX

-

­PRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY
IMPLIED WARRANTY OR MERCHANTABILITY, OR FITNESS FOR ANY
PARTICULAR PURPOSE OR USE. HART SHALL NOT BE LIABLE FOR
ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAM­AGES OR LOSS WHETHER IN CONTRACT, TORT, OR OTHERWISE.

11

4 Quick Start

4 Quick Start

Unpacking

This section briefly explains the basics of setting up and operating your ther
mometer readout.

4.1 Unpacking

Carefully unpack the 1522 and accessories and inspect them to make sure all
components are present and in satisfactory condition. Verify that the following
items are present:

1522 Thermometer Readout

•

AC Adapter (clamp-on ferrite installed)

•

Serial Cable

•

User's Guide

•

• Report of Calibration

• Calibration Label

• Passcode Notice

• INFO-CON Connector

• Clamp-on ferrite with installation instructions for probe

• Probe (optional—must be purchased separately)

If all items are not present, contact an Authorized Service Center (see Section

1.3).

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4.2 Use Proper Care with the 1522 and Accessories

First and most important is to understand the safety issues related to the 1522
and its accessories. Be aware that potential hazards exist due to high tempera
tures, high voltages, and battery chemicals. Carefully read Section .

CAUTION: The 1522 and any thermometer probes are sensitive instru

ments that can be easily damaged. Always handle these devices with care.
DO NOT allow them to be dropped, struck, stressed, or overheated.

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4.3 Learn About the Features and Components

Familiarize yourself with the features and accessories of the 1522 by reading
Section 5.

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13

1522 Handheld Thermometer Readout

User’s Guide

4.4 Connect the Probe

The PRT or thermistor probe connects to the top of the 1522 using Hart’s
unique INFO-CON probe connector. The probe connector is inserted into the
top of the instrument with the ridged to the back and fits snugly and locked into
place when it is fully inserted.

The INFO-CON probe connector includes a memory device that stores the
unique characteristics of the probe, allowing the 1522 to measure tempera
ture accurately. If your probe was purchased from Hart for use with the 1522, it
should already have the connector attached and properly programmed. You can
use your own probe with the 1522, but you must attach it to an INFO-CON
connector. See Section 6.6 for more information on the INFO-CON connector
and instructions on properly attaching the probe to the connector.

4.5 Connect the Power Source

The 1522 draws power either from a DC power supply (the included AC
adapter) connected to the DC input or from the internal rechargeable battery
pack. To use the AC adapter, plug it into a wall outlet of the appropriate voltage
and insert the DC plug into the DC power input of the 1522 (see Figure 2.) The
battery pack must first be fully charged prior to using the AC adapter (see Sec­tion 6.1).

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4.6 Switch the Power On

Power is switched on and off with the power button located below and to the
left of the display. To switch the power on, hold the power button down for at
least three seconds and release. (To switch power off, momentarily press the
power button again.) The instrument takes a few seconds to power up, initialize
itself, and begin normal operation. During initialization the lower line of the
display shows the manufacturer, model number, firmware version, and the state
of battery charge or the message “External power” if the AC adapter is at
tached. If the thermometer readout or probe calibration have expired, the mes
sages “Prb cal expired” or “Mtr cal expired” are displayed. The 1522 reads
important information about the attached probe from the INFO-CON connector
that is used to calculate temperature.

The 1522 then performs a memory check of critical parameters, such as the cal
ibration parameters CAL1 and CAL2. During this check the lower line of the
display reads “Checking Memory”. If a “Memory Error” or “Memory Recover”
message is displayed, see Section 12.1, Troubleshooting, for additional infor
mation and instructions.

4.7 Measure Temperature

After initialization the upper line of the display begins to show temperature
measurements sensed by the probe. Place the probe into the object where you

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4 Quick Start

Measure Temperature

want to measure the temperature. DO NOT force the probe or otherwise allow
it to be bent, stressed, or overheated. It can be easily damaged if misused. For
further suggestions on handling the probe and using the 1522 and probe to
measure temperature accurately, see Section 6.5. For information on the various
modes of operation of the 1522 see Section 7.

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