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Table of Contents
Related Manuals for Fluke 7103
Summary of Contents for Fluke 7103
- Page 1 7103 Micro-Bath User’s Guide PN 3729337 December 2013 © 2013 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
- Page 2 Fluke 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 Fluke. Warranty support is available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price.
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Page 3: Table Of Contents
Comparison Calibration ................. 15 Calibration of Multiple Probes ..............16 Parts and Controls ..............17 Back Panel ..................... 17 Front Panel ..................... 18 Accessories ................... 19 7.3.1 Transport/Pour Access Lid ................19 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... - Page 4 Temperature Set-point ................31 9.2.1 Programmable Set-points ................31 9.2.2 Set-point Value .....................33 9.2.3 Temperature Scale Units ................33 Scan ....................... 34 9.3.1 Scan Control ....................34 9.3.2 Scan Rate .....................34 Temperature Display Hold ..............35 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
- Page 5 10.2 Interface Commands ................45 11 Test Probe Calibration ............47 11.1 Calibrating a Single Probe ..............47 11.2 Stabilization and Accuracy ..............47 12 Calibration Procedure ............49 12.1 Calibration Points ................... 49 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
- Page 6 12.2.4 Accuracy & Repeatability ................51 13 Maintenance ................53 14 Troubleshooting ..............55 14.1 Troubleshooting Problems, Possible Causes, and Solutions ....55 14.2 Comments ....................56 14.2.1 EMC Directive ....................56 14.2.2 Low Voltage Directive (Safety) ..............56 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
- Page 7 Table 2 Specifications ..................9 Table 3 Table of Various Bath Fluids ............... 25 Table 4 Nominal Stirrer Motor Settings With Different Liquids ......27 Table 5 Controller Communications Commands ..........46 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
- Page 8 Figures Figure 1 7103 Back Panel and Bottom ............17 Figure 2 7103 Front Panel ................18 Figure 3 Bath Lids and Lid Parts ..............19 Figure 4 Probe Basket ..................20 Figure 5 Stir Bar ....................20 Figure 6 Chart of Various Bath Fluids ............. 26 Figure 7 Controller Operation Flowchart ............
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Page 9: Before You Start
AC (Alternating Current) AC-DC Battery CE Complies with European Union directives Double Insulated Electric Shock Fuse PE Ground Hot Surface (Burn Hazard) Read the User’s Guide (Important Information) Canadian Standards Association MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 10: Safety Information
Completely unattended operation in not recommended. DO NOT install access cover without holes onto a bath that is energized. Dangerous pressures may result from fluids vaporizing. Follow all safety guidelines listed in the user’s manual. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... - Page 11 DO NOT operate near flammable materials. Extreme temperatures could ignite the flammable material. Use of this instrument at HIGH TEMPERATURES for extended periods of time requires caution. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
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Page 12: Cautions
DO NOT slam the probe stems into the well. This type of action can cause a shock to the sensor and affect the calibration. DO use a ground fault interrupt device. DO NOT operate this instrument in an excessively wet, oily, dusty, or dirty environment. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 13: 1.3 Authorized Service Centers
Otherwise, the fluid may overflow the well and leak into the instrument. 1.3 Authorized Service Centers Please contact one of the following authorized Service Centers to coordinate service on your Hart product: MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... - Page 14 7103 Micro-Bath User’s Guide Authorized Service Centers When contacting these Service Centers for support, please have the following information available: Model Number Serial Number Voltage Complete description of the problem MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
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Page 15: Introduction
RTD temper ature probes. The 7103 is small enough to use in the field, and accurate enough to use in the lab. With an ambient temperature of 23°C (74°F), calibrations may be done over a range of -30°C to 125°C (-22°F to 257°F). - Page 16 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
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Page 17: Specifications And Environmental Conditions
80% for temperature <31°C, de creasing linearly to 50% at 40°C mains voltage within ± 10% of nominal vibrations in the calibration environment should be minimized altitudes less than 2,000 meters MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... - Page 18 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
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Page 19: Quick Start
fluid. Slowly fill the well to 2.54 cm (1 inch) be low the top of the basket at the maximum temperature of the fluid, or to the second ring on the basket. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 20: Power
Another 10 to 15 minutes is required to stabilize within ±0.04°C of the set-point. Ultimate sta bility may take 20 to 30 minutes more of stabilization time. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 21: Installation
IEC 1010-1. Bath Preparation and Filling The 7103 Micro Bath is not provided with a fluid. We suggest using Silicone 200.05 Dow Oil. Fluids are available from Hart Scientific and other sources. Although other fluids may be used, the instrument may not meet the specifica tions detailed in Table 2 when Silicone 200.05 Dow Oil is not used. -
Page 22: Power
With the bath power switch off, plug the bath into an AC mains outlet of the appropriate voltage, frequency, and current capacity. Refer to Section 3.1, Specifications, for power details. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 23: Bath Use
Nevertheless, probes should be inserted to the same depth in the bath liquid. Be sure that all probes are inserted deep enough to prevent stem effect. From research at Hart Scien tific, we suggest a general rule-of-thumb for immersion depth MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 24: Calibration Of Multiple Probes
Fully loading the bath with probes increases the time required for the tempera ture to stabilize after inserting the probes. Using the reference probe as the guide, be sure that the temperature has stabilized before starting the calibration. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 25: Back Panel
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Page 26: Front Panel
The airflow is directed up through the top ventilation slots and out the back and sides of the unit. Display Hold Terminals – The 7103 has a display hold function which allows action of an external switch to freeze the displayed temperature and stop the set-point from scanning. -
Page 27: Parts And Controls
fit into the probe basket (Figure 3). Warning: DO NOT use the instrument with an access cover installed that does not have a pressure relief hole. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 28: Probe Basket
7.3.4 Stir Bar The stir bar (Figure 5) sits in the bottom of the well for mixing the fluid provid ing better accuracy, uniformity, and stability. Figure 5 Stir Bar MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 29: General Operation
Note: Use 5 amp fuses for both 115 V and 230 V. 8.3 Bath Fluid Many fluids work with the 7103 bath. Choosing a fluid requires consideration of many important characteristics of the fluid. Among these are temperature range, viscosity, specific heat, thermal conductivity, thermal expansion, electri cal resistivity, fluid... -
Page 30: Viscosity
In some applications, such as measuring the resistance of bare temperature sensors, it may be important that little or no electrical leakage oc cur through the fluid. In such conditions choose a fluid with very high resistivity. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 31: Fluid Lifetime
Cost may be an important consid eration when choosing a fluid. 8.3.10 Commonly Used Fluids Below is a description of some of the more commonly used fluids and their characteristics. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 32: Water (Distilled)
The charts include information on a variety of fluids which are often used as heat transfer fluid in baths. Because of the temperature range some fluids may not be useful with your bath. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 33: Limitations And Disclaimer
*Limiting Factors — b – boiling point e – high evaporation fl – flash point fr – freeze point v – viscosity — Flash point test oc = open cup cc = closed cup **Very low water solubility, ice will form as a slush from condensation below freezing. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 34: About The Graph
Freezing Point: The freezing point of a fluid is an obvious limitation to stir ring. As the freezing point is approached high viscosity may also limit performance. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 35: Stirring
5°C to 90°C (41°F to 194°F) Ethylene Glycol -5°C to 90°C (25°F to 194°F) 200.05 Oil -30°C to 125°C (-22°F to 257°F) 200.10 Oil 25°C to 125°C (77°F to 257°F) MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 36: Power
Fluid Drain The fluid may be drained from the 7103 by tightly screwing the transport/pour access lid onto the top of the bath and pouring the liquid into an appropriate container. - Page 37 Once the new temperature is reached the bath usually takes 15 – 20 minutes for the temperature to settle and stabilize. There may be a small over shoot or undershoot. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
- Page 38 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
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Page 39: Controller Operation
“SET”. The number of the set-point memory currently being used is shown at the left on the display followed by the current set-point value. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 40: Figure 7 Controller Operation Flowchart
7103 Micro-Bath User’s Guide Temperature Set-point Figure 7 Controller Operation Flowchart MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 41: Set-Point Value
(°C) or Fahrenheit (°F). The selected units are used in displaying the well temperature, set-point, and proportional band. Press “SET” after adjusting the set-point value to change display units. Scale units currently selected Un= C Press “UP” or “DOWN” to change the units. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 42: Scan
Scan rate in°C/min Sr= 10.0 Press “UP” or “DOWN” to change the scan rate. New scan rate Sr= 2.0 Press “SET” to accept the new scan rate and continue. Accept scan rate MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 43: Temperature Display Hold
Temperature Display Hold Temperature Display Hold The 7103 has a display hold function which allows action of an external switch to freeze the displayed temperature and stop the set-point from scanning. This is useful for testing thermal switches and cut-outs. The instrument must be powered off before attaching thermal switches or cut-outs. -
Page 44: Switch Wiring
TED on time to the pulse cycle time. By knowing the amount of heating the user can tell if the calibrator is heating up to the set-point, cooling down, or MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 45: Proportional Band
For best control stabil ity the proportional band must be set for the optimum width. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 46: Controller Configuration
“UP” and “DOWN” keys and then pressing “SET”. (See Figure 7 on page 32.) 9.8.1 Operating Parameters The operating parameters menu is indicated by, Operating parameters menu The operating parameters menu contains the High Limit and Stir Speed parameters. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 47: High Limit
The stir motor speed needs to be varied for best stability. Table 4 on page 27 shows nominal settings for several fluids. 9.8.2 Serial Interface Parameters The serial RS-232 interface parameters menu is indicated by, Serial RS-232 interface parameters menu SErIAL MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 48: Baud Rate
The next parameter is the duplex mode. The duplex mode may be set to full du plex or half duplex. With full duplex any commands received by the calibrator via the MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 49: Linefeed
The correct setting of these parameters is im portant to the safety and proper operation of the bath. The calibration parameters menu is indicated by: Calibration parameters menu Press “SET” five times to enter the menu. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 50: Hard Cutout
The value of this parameter is set at the factory for best instrument accuracy. 9.8.3.5 BETA This probe parameter characterizes the low temperatures. The value of this pa rameter is set at the factory for best instrument accuracy. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 51: 10 Digital Communication Interface
Finally press “SET” to enter the serial pa rameter menu. In the serial interface parameters menu are the BAUD rate, the sample rate, the duplex mode, and the linefeed parameter. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 52: Baud Rate
“bAUd”. Press “SET” to choose to set the BAUD rate. The current baud rate value will then be displayed. The baud rate of the 7103 serial communications may be programmed to 300, 600, 1200, 2400, 4800, or 9600 baud. -
Page 53: 10.2 Interface Commands
Spaces may be added within command strings and will simply be ignored. Backspace (BS, ASCII 8) may be used to erase the previous character. A termi nating CR is implied with all commands. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 54: Table 5 Controller Communications Commands
When DUPLEX is set to FULL and a command is sent to READ, the command is returned followed by a carriage return and linefeed. Then the value is returned as indicated in the RETURNED column. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 55: Test Probe Calibration
Speeding up the calibration process can be accomplished by knowing how soon to make the measurement. Typical measurements should be made at the desired temperatures with the desired test probes to establish these times. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... - Page 56 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
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Page 57: Calibration Procedure
Repeat step 2 for the other two set-points recording them as T and R respectively. Using the recorded data, calculate new values for R0, ALPHA, DELTA, and BETA parameters using the equations given below: 12.2.1 Compute DELTA MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 58: Compute R0 & Alpha
Calibration Procedure delta DE CF – Measured temperature using thermometer. – Value of R from display of 7103 (Press SET and DOWN at the same time.) where and R are the measured temperature and resistance at -25 °C and R are the measured temperature and resistance at 0 °C... -
Page 59: Accuracy & Repeatability
Accuracy & Repeatability Check the accuracy of the instrument at various points over the calibrated range. If the instrument does not pass specification at all set-points, repeat the Calibration Procedure. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... - Page 60 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
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Page 61: Maintenance
If the instrument is used in a manner not in accordance with the equip ment design, the operation of the Micro-Bath may be impaired or safety hazards may arise. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... - Page 62 MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...
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Page 63: Troubleshooting
Instrument is unstable Varying line voltage or fluid is not stirring. Place the unit on a clean power line. If the fluid is not stirring, turn the instrument off for one minute. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:... -
Page 64: Comments
Low Voltage Directive (Safety) In order to comply with the European Low Voltage Directive (73/23/EEC), Hart Scientific equipment has been designed to meet the EN 61010-1 and EN 61010-2-010 standards. MyFlukeStore 1.877.766.5412 www. .com Shop for Fluke products online at:...