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Hart Scientific
1521
HandheldThermometerReadout
User’sGuide
Rev. 571203 ENG
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Limited Warranty & Limitation of Liability Each product from Fluke's Hart Scientific Division ("Hart") is warranted to be free from defects in mate- rial and workmanship under normal use and service. The warranty period is one year for the Handheld Thermometer Readout. 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 cus- tomer of a Hart authorized reseller, and does
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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 . . . . . . . . . . . . .
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6.6 INFO-CON Connector . . . . . . . . . . . . . . . . . . . . . . . 23 7 Display Functions. . . . . . . . . . . . . . . . . . . . . . . . . 25 7.1 Blank Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 7.2 Min/Max Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 7.3 Hold Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 7.4
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11 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . 47 11.1 An Error Message Is Displayed . . . . . . . . . . . . . . . . . . . 47 11.2 CE Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 11.2.1 EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 11.2.1.1 Immunity Testing . . . . . . . . . . . . . . . . . . .
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Figures and Tables Table 1 International Electrical Symbols . . . . . . . . . . . . . . . . . . . . . 1 Figure 1 Front of the 1521 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 2 Top and Side View . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 3 INFO-CON Connector . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 4 Battery Installation . . .
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1 Before You Start Symbols Used 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. Table 1 International Electrical Symbols Symbol Description AC (Alternating Current) AC-DC Battery CE Complies with European Union Directives DC Double Insulated Electric Shock Fuse PE Ground Hot Surface (Burn Hazard) Read the User’s Manual (Important Information) Off On 1
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1521 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 (WE
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1 Before You Start Safety Information 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 adap
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1521 Handheld Thermometer Readout User’s Guide • 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
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1 Before You Start Authorized Service Centers Chao Yang District Beijing 100004, PRC CHINA Phone: +86-10-6-512-3436 Telefax: +86-10-6-512-3437 E-mail: xingye.han@fluke.com.cn Fluke South East Asia Pte Ltd. Fluke ASEAN Regional Office Service Center 60 Alexandra Terrace #03-16 The Comtech (Lobby D) 118502 SINGAPORE Phone: +65 6799-5588 Telefax: +65 6799-5588 E-mail: antng@singa.fluke.com When contacting these Service Centers for support, please have the following information available: • Model Nu
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2 Introduction 2 Introduction The 1521 Handheld Thermometer Readout is a low-cost, high-accuracy digital thermometer readout designed to be used with PRTs and thermistors. The unique combination of features makes this instrument suitable for a wide vari - ety of applications in industry. Features and capabilities of the 1521 include the following: • Measures with platinum resistance thermometers (PRTs) and thermistors • Works with Hart’s special INFO-CON probe connector (which is partially based
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3 Specifications and Environmental Conditions Specifications 3 Specifications and Environmental Conditions 3.1 Specifications Resistance Range 0Ω to 500 kΩ Resistance Accuracy, PRT, one 0Ω to 25Ω: 0.002Ω † year 25Ω to 400Ω: 0.008% (80 ppm) of reading Resistance Accuracy, thermistor, 0Ωto2kΩ:0.4Ω † one year 2kΩ to 200 kΩ: 0.02% (200 ppm) of reading 200 kΩ to 500 kΩ: 0.03% (300 ppm) of reading Temperature Range PRT: –200°C to 962°C (–328°F to 1764°F) Thermistor: –50°C to 150°C (–58°F to 302°F) † T
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1521 Handheld Thermometer Readout User’s Guide Digital Filter Exponential with adjustable time constant (1 to 60 seconds) Remote Communications RS-232 serial Display LCD, 6-digit x 7-segment with 16-character alphanumeric Operating Temperature Range 0 to 40°C (32 to 104°F) absolute 15 to 35°C (59 to 95°F) full accuracy Power 12 VDC (AC adapter included) Rechargeable NiMH batteries (included) Safety OVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per IEC1010-1 refers to the level of Im
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4 Quick Start Unpacking 4 Quick Start This section briefly explains the basics of setting up and operating your 1521 Thermometer. 4.1 Unpacking Carefully unpack the 1521 and accessories and inspect them to make sure all components are present and in satisfactory condition. Verify that the following items are present: • 1521 Thermometer • AC Adapter (clamp-on ferrite installed) • Serial Cable • User’s Guide • Report of Calibration • Calibration Label • Pass-code Notice • INFO-CON Connector • Clam
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1521 Handheld Thermometer Readout User’s Guide top of the instrument with the ridged side down. It will fit snugly and lock 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 1521 to measure tempera- ture accurately. If your probe was purchased from Hart for use with the 1521 it should already have the connector attached and properly programmed. You can use your own probe with the 1521, but
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1521 Handheld Thermometer Readout User’s Guide Display-The display shows the current temperature (or resistance) measure- ment on the large numeric upper portion of the display. It can also show a vari- ety of information on the smaller alphanumeric lower portion such as minimum, maximum, hold temperatures, delta(x), and other instrument settings. Power and Backlight button-This button turns the instrument on or off. If the power is on, pressing the button for three seconds toggles the backlight
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5 Parts and Controls Top and Side Features 5.2 Top and Side Features Probe Connector Top View Side View Serial Port Infrared Window (not used) DC Power Input Stand Figure 2 Top and Side View The top and side of the 1521 feature the probe connector, DC power input, se- rial port, and infrared window. Probe Connector - At the top of the thermometer is the opening where the probe connector is inserted. The probe must be connected using an INFO-CON probe connector to measure temperature (see Section
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1521 Handheld Thermometer Readout User’s Guide 5.3 Back Features See Figure 4 on page 19. Stand-The stand at the back of the 1521 can be flipped down to prop up the in- strument for better viewing. Battery Compartment- Behind the stand is the compartment that contains the battery pack. The battery pack can be accessed if necessary by opening the bat- tery cover with a small Philips screwdriver (see Section 6.1). Serial Number Label-Also behind the stand is the serial number label that uniquely i
