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Fluke 7341 - User Manual

Fluke 7341
96 pages
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August 2012
© 2012 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
7341
Calibration Bath
Users Guide
Via Acquanera, 29 22100 Como
tel. 031.526.566 (r.a.) fax 031.507.984
info@calpower.it www.calpower.it

Table of Contents

Question and Answer IconNeed help?

Do you have a question about the Fluke 7341 and is the answer not in the manual?

Summary

Before You Start

Symbols Used

Lists international electrical symbols used in the manual and on the instrument.

Safety Information

Provides critical safety guidelines, warnings, and precautions for operating the instrument.

Authorized Service Centers

Lists contact details for authorized service centers for product support and repairs.

Introduction

Specifications and Environmental Conditions

Specifications

Details technical specifications like range, stability, uniformity, heating/cooling times, and power requirements.

Environmental Conditions

Outlines the safe operating environment for the instrument, including temperature and humidity limits.

Quick Start

Unpacking

Instructions on how to carefully unpack the bath and check for all components and shipping damage.

Set Up

Guides on placement, fluid filling, and power connection for initial setup of the bath.

Power

Details on how to connect and turn on the bath, including voltage and frequency checks.

Setting the Temperature

Step-by-step guide on how to set the desired temperature using the front panel controls.

Installation

Moving or Uncrating the Bath

Guidance on safely moving and unpacking the bath unit, emphasizing not to lift it.

Bath Environment

Recommendations for the ideal location and environmental conditions for operating the bath.

Tipping Prevention Bracket Installation

Instructions for installing a safety bracket to prevent tipping, crucial for stability.

Installation On A Wood Floor

Specific steps for securely mounting the tipping prevention bracket on a wood floor.

Bath Use

General

General advice on fluid selection, handling probes, and bath operation for optimal results.

Comparison Calibration

Describes the process of calibrating probes by comparing them against a reference probe in the bath.

Calibration of Multiple Probes

Guidance on calibrating multiple probes simultaneously, focusing on probe placement and bath stability.

Parts and Controls

Front Control Panel

Detailed description of the front panel controls, indicators, and digital display functions.

Back Panel

Information about components located on the rear of the bath unit.

Fluid Expansion Reservoir

Explanation of the purpose and function of the fluid expansion reservoir.

General Operation

Heat Transfer Fluid Properties

Discusses fluid properties like range, viscosity, specific heat, conductivity, expansion, resistivity, and lifetime.

Fluid Safety and Selection

Covers critical safety, cost, commonly used fluids, charts, and disclaimers for fluid selection.

Bath System Components

Details on stirring, power, heater, and the temperature controller for bath operation.

Refrigeration System

Description of the refrigeration system, its modes, and management of cooling functions.

Controller Operation

Bath Temperature

How the digital display shows actual bath temperature and units.

Reset Cutout

Procedure to reset the over-temperature cutout after it has been activated.

Temperature Set-point

How to set the bath temperature, including selecting memories and adjusting values.

Programmable Set-points

How the controller stores and recalls up to 8 preset temperature set-points.

Set-point Value

How to adjust the specific temperature value for a selected set-point.

Set-point Vernier

Fine-tuning the set-point for more precise temperature control.

Scan

Enabling and controlling the rate at which the bath heats or cools to a set-point.

Scan Control

Turning the scan function on or off.

Scan Rate

Setting the speed of temperature change in degrees per minute.

Temperature Scale Units

Changing the display units between Celsius and Fahrenheit.

Ramp and Soak Program

Programming multi-step temperature cycles with hold times.

Number of Program Set-points

Setting the quantity of set-points for ramp and soak programs.

Set-points

Defining the specific temperature values for ramp and soak programs.

Program Soak Time

Setting the duration each temperature is held in a ramp and soak program.

Program Function Mode

Selecting the program cycle type (up, down, repeat).

Program Control

Starting, stopping, or continuing a programmed cycle.

Secondary Menu

Accessing less frequently used functions like heater power.

Heater Power

Displaying the percentage of heater power being used for temperature control.

Proportional Band

Adjusting the controller's proportional band for optimal temperature stability.

Cutout

Setting and managing the over-temperature cutout for safety.

Controller Configuration

Accessing various configuration parameters like probe, operating, and interface settings.

Probe Parameters

Setting R0 and ALPHA parameters for probe calibration accuracy.

Operating Parameters

Configuring cutout reset mode, cooling mode, and hot gas bypass.

Cutout Reset Mode

Determining if the cutout resets automatically or requires manual reset.

Cooling Mode

Setting the refrigeration mode (Auto, On, Off) for temperature control.

Hot Gas Bypass Mode

Adjusting the hot gas bypass for cooling capacity and stability.

Serial Interface Parameters

Configuring baud rate, sample period, duplex mode, and linefeed for RS-232.

Baud Rate

Setting the serial communication transmission rate.

Sample Period

Setting the time between temperature measurements transmitted via serial interface.

Duplex Mode

Configuring full or half duplex for serial communication.

Linefeed

Setting linefeed behavior for serial communication.

IEEE-488 Parameters

Configuration for the optional IEEE-488 interface.

IEEE-488 Address

Setting the device address for IEEE-488 communication.

Transmission Termination

Configuring the termination character for IEEE-488 data transmission.

Calibration Parameters

Accessing and understanding factory-set calibration constants like CTO, CO, CG, H, L, HGbt.

Digital Communication Interface

Serial Communications

Describes RS-232 serial interface capabilities for communication and control.

Wiring

Details the pin-out and wiring for RS-232 serial communication cables.

Setup

Steps to configure serial interface parameters like baud rate and duplex mode.

Baud Rate

Setting the serial communication transmission rate.

Sample Period

Setting the time between temperature measurements transmitted via serial interface.

Duplex Mode

Configuring full or half duplex for serial communication.

Linefeed

Setting linefeed behavior for serial communication.

Serial Operation

How to operate the bath using the serial interface for control and monitoring.

IEEE-488 Communication (optional)

Information on the optional IEEE-488 interface for GPIB communication.

Setup

Steps to configure IEEE-488 interface parameters like address and termination.

IEEE-488 Address

Setting the device address for IEEE-488 communication.

Transmission Termination

Configuring the termination character for IEEE-488 data transmission.

IEEE-488 Operation

How to use the IEEE-488 interface for controlling and monitoring the bath.

Interface Commands

Lists and explains commands for controlling the bath via digital interfaces.

Cooling Control

How to control the bath's cooling system via the digital interface.

Calibration Procedure

Calibration Points

Guidance on selecting optimal temperatures for calibrating the bath's accuracy.

Measuring the Set-point Error

Steps to measure temperature errors at calibration points to determine deviations.

Computing R0 and ALPHA

Formulas and procedure for calculating new probe calibration constants R0 and ALPHA.

Calibration Example

A practical example demonstrating the calculation of R0 and ALPHA values.

Maintenance

Heat transfer medium lifetime

Discusses checking and maintaining the heat transfer fluid for optimal performance and lifespan.

Condensing coil fins

Schedule for cleaning condensing coil fins to maintain bath efficiency.

Hazardous material spills

User responsibility for decontamination procedures following hazardous material spills.

Power cord damage

Guidance on replacing a damaged power supply cord with an appropriate one.

Cleaning or decontamination methods

Advises consulting an Authorized Service Center before using non-recommended cleaning methods.

Over-temperature cutout check

Procedure to check the functionality of the over-temperature cutout every six months.

Silicon oil maintenance

Specific maintenance for silicon oil baths, including cleaning oil condensation.

Troubleshooting

General Troubleshooting Guidance

General guidance on identifying and solving common operational problems with the bath.

Heater and Cutout Issues

Solutions for problems related to the heater indicator, temperature not increasing, and cutout activation.

Display and Parameter Issues

Addressing problems with flashing displays, incorrect temperatures, and parameter loss due to battery issues.

Temperature Control Accuracy

Troubleshooting inaccurate temperature control, possibly due to fluid levels, probe issues, or calibration parameters.

Stability and Oscillation Problems

Resolving unstable temperatures, oscillation, erratic control, and inability to reach low temperatures.

Compliance and Directive Information

Information on EMC Directive, Immunity Testing, Emission Testing, and Low Voltage Directive.

Summary

Before You Start

Symbols Used

Lists international electrical symbols used in the manual and on the instrument.

Safety Information

Provides critical safety guidelines, warnings, and precautions for operating the instrument.

Authorized Service Centers

Lists contact details for authorized service centers for product support and repairs.

Introduction

Specifications and Environmental Conditions

Specifications

Details technical specifications like range, stability, uniformity, heating/cooling times, and power requirements.

Environmental Conditions

Outlines the safe operating environment for the instrument, including temperature and humidity limits.

Quick Start

Unpacking

Instructions on how to carefully unpack the bath and check for all components and shipping damage.

Set Up

Guides on placement, fluid filling, and power connection for initial setup of the bath.

Power

Details on how to connect and turn on the bath, including voltage and frequency checks.

Setting the Temperature

Step-by-step guide on how to set the desired temperature using the front panel controls.

Installation

Moving or Uncrating the Bath

Guidance on safely moving and unpacking the bath unit, emphasizing not to lift it.

Bath Environment

Recommendations for the ideal location and environmental conditions for operating the bath.

Tipping Prevention Bracket Installation

Instructions for installing a safety bracket to prevent tipping, crucial for stability.

Installation On A Wood Floor

Specific steps for securely mounting the tipping prevention bracket on a wood floor.

Bath Use

General

General advice on fluid selection, handling probes, and bath operation for optimal results.

Comparison Calibration

Describes the process of calibrating probes by comparing them against a reference probe in the bath.

Calibration of Multiple Probes

Guidance on calibrating multiple probes simultaneously, focusing on probe placement and bath stability.

Parts and Controls

Front Control Panel

Detailed description of the front panel controls, indicators, and digital display functions.

Back Panel

Information about components located on the rear of the bath unit.

Fluid Expansion Reservoir

Explanation of the purpose and function of the fluid expansion reservoir.

General Operation

Heat Transfer Fluid Properties

Discusses fluid properties like range, viscosity, specific heat, conductivity, expansion, resistivity, and lifetime.

Fluid Safety and Selection

Covers critical safety, cost, commonly used fluids, charts, and disclaimers for fluid selection.

Bath System Components

Details on stirring, power, heater, and the temperature controller for bath operation.

Refrigeration System

Description of the refrigeration system, its modes, and management of cooling functions.

Controller Operation

Bath Temperature

How the digital display shows actual bath temperature and units.

Reset Cutout

Procedure to reset the over-temperature cutout after it has been activated.

Temperature Set-point

How to set the bath temperature, including selecting memories and adjusting values.

Programmable Set-points

How the controller stores and recalls up to 8 preset temperature set-points.

Set-point Value

How to adjust the specific temperature value for a selected set-point.

Set-point Vernier

Fine-tuning the set-point for more precise temperature control.

Scan

Enabling and controlling the rate at which the bath heats or cools to a set-point.

Scan Control

Turning the scan function on or off.

Scan Rate

Setting the speed of temperature change in degrees per minute.

Temperature Scale Units

Changing the display units between Celsius and Fahrenheit.

Ramp and Soak Program

Programming multi-step temperature cycles with hold times.

Number of Program Set-points

Setting the quantity of set-points for ramp and soak programs.

Set-points

Defining the specific temperature values for ramp and soak programs.

Program Soak Time

Setting the duration each temperature is held in a ramp and soak program.

Program Function Mode

Selecting the program cycle type (up, down, repeat).

Program Control

Starting, stopping, or continuing a programmed cycle.

Secondary Menu

Accessing less frequently used functions like heater power.

Heater Power

Displaying the percentage of heater power being used for temperature control.

Proportional Band

Adjusting the controller's proportional band for optimal temperature stability.

Cutout

Setting and managing the over-temperature cutout for safety.

Controller Configuration

Accessing various configuration parameters like probe, operating, and interface settings.

Probe Parameters

Setting R0 and ALPHA parameters for probe calibration accuracy.

Operating Parameters

Configuring cutout reset mode, cooling mode, and hot gas bypass.

Cutout Reset Mode

Determining if the cutout resets automatically or requires manual reset.

Cooling Mode

Setting the refrigeration mode (Auto, On, Off) for temperature control.

Hot Gas Bypass Mode

Adjusting the hot gas bypass for cooling capacity and stability.

Serial Interface Parameters

Configuring baud rate, sample period, duplex mode, and linefeed for RS-232.

Baud Rate

Setting the serial communication transmission rate.

Sample Period

Setting the time between temperature measurements transmitted via serial interface.

Duplex Mode

Configuring full or half duplex for serial communication.

Linefeed

Setting linefeed behavior for serial communication.

IEEE-488 Parameters

Configuration for the optional IEEE-488 interface.

IEEE-488 Address

Setting the device address for IEEE-488 communication.

Transmission Termination

Configuring the termination character for IEEE-488 data transmission.

Calibration Parameters

Accessing and understanding factory-set calibration constants like CTO, CO, CG, H, L, HGbt.

Digital Communication Interface

Serial Communications

Describes RS-232 serial interface capabilities for communication and control.

Wiring

Details the pin-out and wiring for RS-232 serial communication cables.

Setup

Steps to configure serial interface parameters like baud rate and duplex mode.

Baud Rate

Setting the serial communication transmission rate.

Sample Period

Setting the time between temperature measurements transmitted via serial interface.

Duplex Mode

Configuring full or half duplex for serial communication.

Linefeed

Setting linefeed behavior for serial communication.

Serial Operation

How to operate the bath using the serial interface for control and monitoring.

IEEE-488 Communication (optional)

Information on the optional IEEE-488 interface for GPIB communication.

Setup

Steps to configure IEEE-488 interface parameters like address and termination.

IEEE-488 Address

Setting the device address for IEEE-488 communication.

Transmission Termination

Configuring the termination character for IEEE-488 data transmission.

IEEE-488 Operation

How to use the IEEE-488 interface for controlling and monitoring the bath.

Interface Commands

Lists and explains commands for controlling the bath via digital interfaces.

Cooling Control

How to control the bath's cooling system via the digital interface.

Calibration Procedure

Calibration Points

Guidance on selecting optimal temperatures for calibrating the bath's accuracy.

Measuring the Set-point Error

Steps to measure temperature errors at calibration points to determine deviations.

Computing R0 and ALPHA

Formulas and procedure for calculating new probe calibration constants R0 and ALPHA.

Calibration Example

A practical example demonstrating the calculation of R0 and ALPHA values.

Maintenance

Heat transfer medium lifetime

Discusses checking and maintaining the heat transfer fluid for optimal performance and lifespan.

Condensing coil fins

Schedule for cleaning condensing coil fins to maintain bath efficiency.

Hazardous material spills

User responsibility for decontamination procedures following hazardous material spills.

Power cord damage

Guidance on replacing a damaged power supply cord with an appropriate one.

Cleaning or decontamination methods

Advises consulting an Authorized Service Center before using non-recommended cleaning methods.

Over-temperature cutout check

Procedure to check the functionality of the over-temperature cutout every six months.

Silicon oil maintenance

Specific maintenance for silicon oil baths, including cleaning oil condensation.

Troubleshooting

General Troubleshooting Guidance

General guidance on identifying and solving common operational problems with the bath.

Heater and Cutout Issues

Solutions for problems related to the heater indicator, temperature not increasing, and cutout activation.

Display and Parameter Issues

Addressing problems with flashing displays, incorrect temperatures, and parameter loss due to battery issues.

Temperature Control Accuracy

Troubleshooting inaccurate temperature control, possibly due to fluid levels, probe issues, or calibration parameters.

Stability and Oscillation Problems

Resolving unstable temperatures, oscillation, erratic control, and inability to reach low temperatures.

Compliance and Directive Information

Information on EMC Directive, Immunity Testing, Emission Testing, and Low Voltage Directive.

Fluke 7341 Specifications

General IconGeneral
BrandFluke
Model7341
CategoryThermostat
LanguageEnglish