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Hart Scientific
1504
ThermometerReadout
User’sGuide
Rev. 571202 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 three years for the Thermom- eter 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 customer of a Hart authorized reseller, and does not a
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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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7.1 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 7.1.1 Setting the Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 7.1.2 Automatic Transmission of Measurements . . . . . . . . . . . . . . . . . . . 26 7.1.3 Time Stamp and System Clock . . . . . . . . . . . . . . . . . . . . . . . . . 26 7.1.4 Duplex Mode and Linefeed . . . . . . . . . .
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Figures Figure 1 Connecting a four-wire probe . . . . . . . . . . . . . . . . . . . . . . 12 Figure 2 12 V DC power source polarity . . . . . . . . . . . . . . . . . . . . . 13 Figure 3 1504 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 4 1504 Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 5 Parameter Menu Structure . . . . . . .
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Tables Table1 International Electrical Symbols . . . . . . . . . . . . . . . . . . . . . 1 Table 2 Typical Values for Thermistor Coefficients . . . . . . . . . . . . . . . 20 Table 3 Setting Coefficients a, b, and c . . . . . . . . . . . . . . . . . . . . . . 21 Table 4 Setting Coefficients a, b, c, and d . . . . . . . . . . . . . . . . . . . . 21 Table 5 Command List . . . . . . . . . . . . . . . . . . .
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1 Before You Start Symbols Used 1 Before You Start 1.1 Symbols Used Table 1 lists the symbols that may be used on the instrument or in this manual Table1 International Electrical Symbols and the meaning of each symbol. Symbol Description AC (Alternating Current) AC-DC Battery Complies with European Union Directives DC (Direct Current) Double Insulated Electric Shock Fuse PE Ground Hot Surface (Burn Hazard) Read the User’s Manual (Important Information) Off 1
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1504 Thermometer Readout User’s Guide Symbol Description On 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) Di
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1 Before You Start Safety Information Before initial use, or after transport, or after storage in humid or semi-humid environments, or anytime the instrument has not been energized for more than 10 days, the instrument needs to be energized for a “dry-out” period of 2 hours before it can be assumed to meet all of the safety requirements of the IEC 1010-1. If the product is wet or has been in a wet environment, take necessary measures to remove moisture prior to applying power such as storage in
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1504 Thermometer Readout User’s Guide 1.2.2 Cautions To avoid possible damage to the instrument, follow these guidelines. DO NOT change the values of the calibration constants from the factory set values unless you are recalibrating the instrument. The correct setting of these parameters is important to the safety and proper operation of the instrument. Allow sufficient air circulation by leaving at least 3 inches of space between the thermometer and nearby objects. For CE compliance and for per
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1 Before You Start Authorized Service Centers Phone: +1.801.763.1600 Telefax: +1.801.763.1010 E-mail: support@hartscientific.com Fluke Nederland B.V. Customer Support Services Science Park Eindhoven 5108 5692 EC Son NETHERLANDS Phone: +31-402-675300 Telefax: +31-402-675321 E-mail: ServiceDesk@fluke.nl Fluke Int'l Corporation Service Center - Instrimpex Room 2301 Sciteck Tower 22 Jianguomenwai Dajie Chao Yang District Beijing 100004, PRC CHINA Phone: +86-10-6-512-3436 Telefax: +86-10-6-512-3437 E
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1504 Thermometer Readout User’s Guide When contacting these Service Centers for support, please have the following information available: • Model Number • Serial Number • Voltage • Complete description of the problem 6
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2 Introduction 2 Introduction The 1504 Thermometer Readout is a low-cost high-accuracy digital thermome- ter readout designed to be used with thermistors or RTDs with a nominal resis- tance of 1,000Ω or greater. Its unique combination of features makes it suitable for a wide variety of applications from laboratory measurement to industrial processes. Features of the 1504 include: • Measures with most any thermistor • Four-wire connection eliminates lead resistance effects • Accuracy: 0.003°C, ty
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3 Specifications and Environmental Conditions Specifications 3 Specifications and Environmental Conditions 3.1 Specifications Resistance range 0to1MΩ, auto-ranging Resistance accuracy, one 0to5kΩ:0.5Ω 1 year 5kΩ to 200 kΩ: 0.01% (100 ppm) of reading 200 kΩ to1MΩ: 0.03% (300 ppm) of reading Resistance accuracy, short 0to5kΩ:0.25Ω 1 term 5kΩ to 200 kΩ: 0.005% (50 ppm) of reading 200 kΩ to1MΩ: 0.02% (200 ppm) of reading Temperature accuracy, 0°C: 0.002°C 1, 3, 4 typical 25°C: 0.002°C 50°C: 0.004°C
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1504 Thermometer Readout User’s Guide Communications RS-232 serial standard, IEEE-488 (GPIB) optional, Conforms to IEEE-488.1, Capability: AH1, SH1, T6, L4, DC1 Full accuracy: 13°C to 33°C Operating Temperature Absolute: 0°C to 55°C Range AC Power 115 VAC (±10%), 50/60 Hz, 10 W, nominal 1 A maximum 230 VAC (±10%), 50/60 Hz, 10 W (optional) Detachable power cord DC Power (optional) 10–14 VDC (±10%), 1 A maximum (220 mA typical, normal mode; 120 mA typical, power saver mode) Size 5.6 in. (14.3 cm)
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4 Quick Start Unpacking 4 Quick Start This section briefly explains the basics of setting up and operating your 1504 thermometer readout. 4.1 Unpacking Unpack the thermometer 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: • 1504 Thermometer • Extra Probe Connector • Power Cord • Manual • Probe (optional—must be purchased separately) • Battery Pack (optio
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1504 Thermometer Readout User’s Guide to pins 4 and 5. (Pins 1 and 5 source current and pins 2 and 4 sense the poten- tial.) If a shield wire is present it should be connected to pin 3. Probe Connector 5 1 2 4 3 Shield RTD Sensor Figure 1 Connecting a four-wire probe A two-wire probe can also be used with the 1504. It is connected by attaching one wire to both pins 1 and 2 of the plug and the other wire to both pins 4 and 5. If a shield wire is present it should be connected to pin 3. Accuracy m
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4 Quick Start DC Power Option ductor is positive and the inside is negative. When operating in DC mode, the AC power switch on the rear panel is not functional. + – Figure 2 12 V DC power source polarity The optional 9313 Battery Pack, available from Hart Scientific, can be used as a portable power source for the 1504. It includes a 1.2 amp-hr 12V sealed lead-acid battery, a DC power cord that plugs into the 1504’s DC input, a carry- ing bag, and a battery charger. The battery pack can provide t
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1504 Thermometer Readout User’s Guide NOTE: The DC power option includes a low voltage indicator. The low voltage indicator needs to be plugged into the instrument with the battery option plugged in to the low voltage indicator. The low voltage indicator light illuminates when the voltage drops below a safe operating range. The instrument should not be used for measuring when the low voltage light is illuminated. Recharge the battery to an acceptable level before taking measurements. 14
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5 Parts and Controls Front Panel Buttons 5 Parts and Controls 5.1 Front Panel Buttons See Figure 3. The front panel buttons are used to select units of measurement, access operat- ing parameters, and alter operating parameters. The function of each button is as follows: C/Probe—This button selects units of degrees Celsius. In conjunction with the Menu button, it selects the probe parameter menu. F/Sample—This button selects units of degrees Fahrenheit. In conjunction with the Menu button, it sel
