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Fluke 6102 User Manual

Micro-bath
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6102
Micro-Bath
User's Guide
PN 3729224
January 2013
© 2013 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
Fluke-Direct
.com
info@Fluke-Direct.com
1.888.475.5235

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Summary of Contents for Fluke 6102

  • Page 1 6102 Micro-Bath User’s Guide PN 3729224 January 2013 © 2013 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...
  • 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.

  • Page 3: Table Of Contents

    Bath Use .................15 General ....................15 Comparison Calibration ................. 15 Calibration of Multiple Probes ..............16 Parts and Controls ..............17 Back and Bottom Panel ................17 Front Panel ....................18 Accessories ................... 19 7.3.1 Transport/Pour Lid ..................19 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...
  • Page 4 Well Temperature ................... 31 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 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...
  • Page 5 10.1.2.3 Duplex Mode ......................46 10.1.2.4 Linefeed ........................ 46 10.1.3 Serial Operation ....................46 10.2 Interface Commands ................47 11 Test Probe Calibration ............49 11.1 Calibrating a Single Probe ..............49 11.2 Stabilization and Accuracy ..............49 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...
  • Page 6 12.2.2 Compute R0 & ALPHA ..................52 12.2.3 Accuracy & Repeatability ................53 13 Maintenance ................55 14 Troubleshooting ..............57 14.1 Troubleshooting Problems, Possible Causes, and Solutions ....57 14.2 CE Comments ..................58 14.2.1 EMC Directive ....................58 14.2.2 Low Voltage Directive (Safety) ..............58 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...
  • Page 7 Table 1 International Electrical Symbols ............1 Table 2 Specifications ..................9 Table 3 Table of Various Bath Fluids ............... 25 Table 4 Nominal Stirrer Motor Settings With Different Liquids ......28 Table 5 Controller Communications Commands ..........48 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...
  • Page 8 Figures Figure 1 6102 Back Panel and Bottom ............17 Figure 2 6102 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 ............

  • Page 9: Before You Start

    Table 1 International Electrical Symbols Symbol Description AC (Alternating Current) AC-DC Battery Double Insulated Electric Shock Fuse PE Ground Hot Surface (Burn Hazard) Read the User’s Guide (Important Information) Canadian Standards Association Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 10: Safety Information

    6102 Micro-Bath User’s Guide Safety Information Symbol Description C-TICK Australian EMC mark The European Waste Electrical and Electronic Equipment (WEEE) Directive (2002/96/ EC) mark. 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.
  • Page 11 Before working inside the equipment, turn off the power and disconnect the power cord. DO NOT connect this unit to a non-grounded, non-polarized outlet. Always replace the fuse with one of the same rating, voltage, and type. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 12: Cautions

    6102 Micro-Bath User’s Guide Safety Information BATH FLUIDS Fluids used in this unit may produce noxious or toxic fumes under certain circumstances. Consult the fluid manufacturer’s MSDS (Material Safety Data Sheet). Proper ventilation and safety precautions must be observed. The unit is equipped with a soft cutout (user settable firmware) and a hard cutout.

  • Page 13: Authorized Service Centers

    The input voltage and heater voltage switch settings must always be set to the same value. 1.3 Authorized Service Centers Please contact one of the following authorized Service Centers to coordinate service on your Hart product. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...
  • Page 14 6102 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 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 15: Introduction

    RTD temper ature probes. The 6102 is small enough to use in the field, and accurate enough to use in the lab. Calibrations may be done over a range of 35°C to 200°C (95°F to 392°F). The resolution of the 6102 temperature display is 0.01 degrees.
  • Page 16 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 17: Specifications And Environmental Conditions

    Specifications and Environmental Conditions 3.1 Specifications The 6102 may not meet the specification published if a different fluid is used other than distilled water or Dow Corning (200.10, 200.20) oil. Do not exceed the boiling point or flash point temperatures of the fluid. To ensure that the boiling and flash point temperatures are not exceeded adjust the High Limit and...
  • Page 18 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 19: Quick Start

    Unpack the Micro-Bath 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: 6102 Micro-Bath Transport/Pour Lid Probe Basket Stir Bar Power Cord User’s Guide...

  • Page 20: Power

    The displayed tempera ture gradually changes until it reaches the set-point temperature. The 6102 may require 25 minutes to reach the set-point depending on the span. Another 10 to 15 minutes is required to stabilize within ±0.03°C of the set-point.

  • Page 21: Installation

    IEC 61010-1. 5.3 Bath Preparation and Filling The 6102 Micro Bath is not provided with a fluid. Various fluids are available from Hart Scientific and other sources. Depending on the desired temperature range, any of the following fluids, as well as others, may be used in the bath:...

  • Page 22: Power

    6102 Micro-Bath User’s Guide Power 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. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 23: Bath Use

    However, stem effect from different types of probes is not to tally eliminated. Even though all baths have horizontal and vertical gradients, these gradients are minimized inside the Fluke-Direct .com info@Fluke-Direct.com...

  • Page 24: Calibration Of Multiple Probes

    6102 Micro-Bath User’s Guide Calibration of Multiple Probes bath work area. 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 to reduce the stem effect to a minimum: 15 x the diameter of the UUT + the sensor length.

  • Page 25: Parts And Controls

    VOLTAGE SWITCH Back View Bottom View Figure 1 6102 Back Panel and Bottom Heater Voltage Switch – To be used only when changing the input voltage. (See Section 8.1 for instructions on changing the input voltage.) Caution: The input voltage and heater voltage switch settings should al ways be the same value.

  • Page 26: Front Panel

    6102 Micro-Bath User’s Guide Front Panel Fan – The fan inside the calibrator runs continuously when the unit is being op erated to provide cooling for the instrument. Slots at the top and around the two cor ners of the calibrator are provided for air ow. The area around the calibrator must be kept clear to allow adequate ventilation.

  • Page 27: Accessories

    fit into the probe basket. 7.3.3 Probe Basket A probe basket (Figure 4) is provided as a guide for the probes and to prevent bumping of the stir bar. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 28: Stir Bar

    Ensure that the tank extender does not leak where the tank extender and the tank meet. Do not use the extender without the perf-cage placed over the extender. Do not leave the 6102 unattended while operating. Cool the bath to ambient and remove all fluid from the bath before removing the extender.

  • Page 29: General Operation

    Switching to 230V Operation General Operation 8.1 Switching to 230V Operation The 6102 is switchable from 115 VAC to 230 VAC 50/60 Hz. Swithcing the voltage can change the calibration, so the unit should be calibrated after changing the input voltage.

  • Page 30: Viscosity

    6102 Micro-Bath User’s Guide Bath Fluid 8.2.2 Viscosity Viscosity is a measure of the thickness of a fluid, how easily it can be poured and mixed. Viscosity affects the temperature stability of the bath. With low vis cosity, fluid mixing is better which creates a more uniform temperature throughout the bath.

  • Page 31: Fluid Lifetime

    Cost may be an important consid eration when choosing a fluid. 8.2.10 Commonly Used Fluids Below is a description of some of the more commonly used fluids and their characteristics. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 32: Water (Distilled)

    6102 Micro-Bath User’s Guide Bath Fluid 8.2.10.1 Water (Distilled) Water is often used because of its very low cost, availability, and excellent tem perature control characteristics. Water has very low viscosity and good thermal conductivity and heat capacity which makes it among the best fluids for control stability at low temperatures.

  • 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. Fluke-Direct .com info@Fluke-Direct.com...

  • Page 34: About The Graph

    6102 Micro-Bath User’s Guide Bath Fluid Figure 6 Chart of Various Bath Fluids 8.2.11.2 About the Graph The fluid graph visually illustrates some of the important qualities of the fluids shown. Temperature Range: The temperature scale is shown in degrees Celsius. The fluids’...

  • Page 35: Stirring

    If any water is mixed with oil when exceeeding temperatures of 90°C the bath will boil over. Warning: Do not mix water and oil when exceeding temperatures of 90°C Fluke-Direct .com info@Fluke-Direct.com...

  • Page 36: Power

    Fluid Drain The fluid may be drained from the 6102 by tightly screwing the transport/pour lid onto the top of the bath and pouring the liquid into an appropriate container.
  • Page 37 When the controller is set to a new set-point the bath heats or cools to the new temperature. 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. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...
  • Page 38 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 39: Controller Operation

    To set the temperature one must first select the set-point memory. This function is accessed from the temperature display function by pressing “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. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 40: Figure 7 Controller Operation Flowchart

    6102 Micro-Bath User’s Guide Temperature Set-point Display Temperature Switch Hold Display Mode DOWN DOWN Select Setpoint Toggles Display of Rs Adjust Setpoint Toggles °C / °F EXIT Units °C/°F Secondary Functions EXIT EXIT Scan On/Off EXIT Display Power Menu Scan Rate...

  • 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. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 42: Scan

    6102 Micro-Bath User’s Guide Scan New units selected Un= F Scan The scan rate can be set and enabled so that when the set-point is changed the bath heats or cools at a specified rate (degrees per minute) until it reaches the new set-point.

  • Page 43: Temperature Display Hold

    Temperature Display Hold Temperature Display Hold The 6102 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 cutouts. This section ex plains the functions available for operating the temperature hold feature.

  • Page 44: Switch Wiring

    6102 Micro-Bath User’s Guide Secondary Menu 9.4.3 Switch Wiring The thermal switch or cutout is wired to the calibrator at the two terminals on the back of the Micro-Bath labeled “DISPLAY HOLD”. The switch wires may be connected to the terminals either way. Internally the black terminal connects to ground. The red terminal connects to +5V through a 100 k resistor.

  • Page 45: Heater Power

    If the proportional band is too narrow the temperature may swing back and forth be cause the controller overreacts to temperature variations. For best control stabil ity the proportional band must be set for the optimum width. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 46: Cutout

    The cutout temperature is programmable by the opera tor from the front panel of the controller. The cutout for the 6102 Bath is defaulted to 225°C. If the cutout is activated because of excessive temperatures, the heater shuts off and the instrument cools.

  • Page 47: Controller Configuration

    The Stir Speed parameter adjusts stirrer motor speed. The factory default is 15. Flashes “Str Sp” and then displays the setting Str SP Current Stir Speed setting To change the stir speed press “UP” or “DOWN”. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 48: High Limit

    6102 Micro-Bath User’s Guide Operating Parameters New Stir Speed setting Press “SET” to accept the new Stir Speed. The stir motor speed needs to be varied for best stability. Table 4 on page 28 shows nominal settings for several fluids.

  • Page 49: Serial Interface Parameters

    five seconds. The automatic sampling is disabled with a sample period of 0. The sample period is indicated by, Flashes “SPEr” and then displays the setting SPer Current sample period (seconds) SP= 1 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 50: Duplex Mode

    6102 Micro-Bath User’s Guide Serial Interface Parameters Adjust the value with “UP” or “DOWN” and then use “SET” to store the sam ple rate to the displayed value. “EXIT” does not store the new value. New sample period SP= 60 9.11.3...

  • Page 51: Calibration Parameters

    100°C. The value of this parameter is set at the factory for best instrument accuracy. 9.12.3 DELTA This probe parameter characterizes the curvature of the resistance-temperature relationship of the sensor. The value of this parameter is set at the factory for best instrument accuracy. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 52: C0 And Cg

    6102 Micro-Bath User’s Guide Calibration Parameters 9.12.4 C0 and CG These parameters calibrate the accuracy of the bath set-point. These are programmed at the factory when the bath is calibrated. DO NOT alter the value of these parameters. If the user desires to calibrate the bath for improved accuracy then calibrate R0, ALPHA, and DELTA according to the procedure in Section 12.

  • Page 53: Digital Communication Interface

    “SET” and release to enter the secondary menu. Press “SET” re peatedly until the display reads “PAr”. Press “UP” until the serial interface menu is indicated with“SErIAL”. Finally press “SET” to enter the serial pa rameter menu. In the serial Fluke-Direct .com info@Fluke-Direct.com...

  • Page 54: 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 6102 serial communications may be programmed to 300, 600, 1200, 2400, 4800, or 9600 baud.

  • Page 55: 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. Fluke-Direct .com info@Fluke-Direct.com...

  • Page 56: Table 5 Controller Communications Commands

    6102 Micro-Bath User’s Guide Interface Commands Table 5 Controller Communications Commands Command Description Command Format Command Example Returned Returned Example Acceptable Values Display Temperature Read current set-point s[etpoint] set: 999.99 {C or F} set: 150.00 C Set current set-point to n s[etpoint]=n s=200.00...

  • Page 57: Test Probe Calibration

    Typical measurements should be made at the desired temperatures with the desired test probes to establish these times. 11.3 Multiple Probe Calibration When calibrating multiple probes, place the probes equally spaced around the inside edge of the probe basket. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...
  • Page 58 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 59: Calibration Procedure

    R respectively. 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, and DELTA parameters using the equations given below: Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 60: Compute Delta

    Compute DELTA delta DE CF – Measured temperature using thermometer. – Value of R from display of 6102 (Press SET and DOWN at the same time.) where and R are the measured temperature and resistance at 50.0 °C and R are the measured temperature and resistance at 90.0 °C...

  • Page 61: Accuracy & Repeatability

    Repeat step 2 for ALPHA and DELTA. 12.2.3 Accuracy & Repeatability Check the accuracy of the Micro-Bath at various points over the calibrated range. If Micro-Bath does not pass specification at all set-points, repeat the Calibration Procedure. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...
  • Page 62 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 63: 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. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...
  • Page 64 Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 65: 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. Fluke-Direct .com info@Fluke-Direct.com 1.888.475.5235...

  • Page 66: Ce Comments

    6102 Micro-Bath User’s Guide CE Comments Problem Possible Causes and Solutions AC voltage present on Use a wall plug tester to check the main power plug at the wall. Use an ohmmeter to the chassis check the continuity between the ground prong on the PEM and the chassis. If the resistance reading is greater than three ohms, there is a problem.

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