Fluke 7011 User manual

Model 7011
Temperature Bath
User’s Guide
March 2013
© 2013 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
PN 3720821
Via Acquanera, 29 22100 Como
tel. 031.526.566 (r.a.) fax 031.507.984
[e-mail] www.calpower.it

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Authorized Service Centers. . . . . . . . . . . . . . . . . . . . . . 5
2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Specifications and Environmental Conditions . . . . . . . . . . 9
3.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Environmental Conditions. . . . . . . . . . . . . . . . . . . . . . 10
4 Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Set Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4 Setting the Temperature . . . . . . . . . . . . . . . . . . . . . . . 12
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 Bath Environment . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 “Dry-out” Period . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.3 Bath Preparation and Filling . . . . . . . . . . . . . . . . . . . . 15
5.4 Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.5 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6 Bath Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.2 Comparison Calibration . . . . . . . . . . . . . . . . . . . . . . . 17
6.3 Calibration of Multiple Probes . . . . . . . . . . . . . . . . . . . 18
7 Parts and Controls . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1 Front Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.2 Side Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.3 Back Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.4 Lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
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8 General Operation . . . . . . . . . . . . . . . . . . . . . . . . 25
8.1 Heat Transfer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.1.1 Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.1.2 Viscosity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.1.3 Specific Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.1.4 Thermal Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.1.5 Thermal Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.1.6 Electrical Resistivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.1.7 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.1.8 Fluid Lifetime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1.9 Cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1.10 Commonly Used Fluids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1.10.1 Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1.10.2 Ethylene Glycol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1.10.3 Methanol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1.10.4 Mineral Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1.10.5 Silicone oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8.1.11 Fluid Characteristics Charts. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8.1.11.1 Limitations and Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8.1.11.2 About the Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
8.2 Stirring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.3 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.4 Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.5 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.6 Temperature Controller . . . . . . . . . . . . . . . . . . . . . . . 32
9 Controller Operation . . . . . . . . . . . . . . . . . . . . . . . 35
9.1 Bath Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.2 Reset Cutout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.3 Temperature Set-point . . . . . . . . . . . . . . . . . . . . . . . . 37
9.3.1 Programmable Set-points . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.3.2 Set-point Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.3.3 Set-point Vernier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.4 Temperature Scale Units . . . . . . . . . . . . . . . . . . . . . . 39
9.5 Secondary Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.6 Heater Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.7 Proportional Band . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.8 Cutout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
9.9 Controller Configuration . . . . . . . . . . . . . . . . . . . . . . 44
9.10 Probe Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . 44
9.10.1 DO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
9.10.2 DG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
9.11 Operating Parameters . . . . . . . . . . . . . . . . . . . . . . . . 44
9.11.1 Cutout Reset Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.12 Calibration Parameters . . . . . . . . . . . . . . . . . . . . . . . 45
iv

9.12.1 CTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.12.2 H and L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
10 Bath Calibration . . . . . . . . . . . . . . . . . . . . . . . . . 47
10.1 Calibration Points . . . . . . . . . . . . . . . . . . . . . . . . . . 47
10.2 Measuring the Set-point Error. . . . . . . . . . . . . . . . . . . . 47
10.3 Computing DO and DG . . . . . . . . . . . . . . . . . . . . . . . 47
10.4 Calibration Example. . . . . . . . . . . . . . . . . . . . . . . . . 49
11 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
11.1 Draining the Bath . . . . . . . . . . . . . . . . . . . . . . . . . . 52
12 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . 55
12.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
12.2 Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
12.2.1 EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
12.2.2 Low Voltage Directive (Safety) . . . . . . . . . . . . . . . . . . . . . . . . . 58
v

vi
Figures and Tables
Figure 1 Bath Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 2 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 3 Refrigeration Controls - Side Panel . . . . . . . . . . . . . . . . . . . 20
Figure 4 Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 5 Lid Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 2 Table of various fluids and their properties . . . . . . . . . . . . . . . 29
Figure 6 Chart of various bath fluids and their properties . . . . . . . . . . . . . 30
Figure 7 Controller Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 8 Bath temperature fluctuation at various proportional band settings . . . 41
Table 3 Proportional Band — Fluid Table . . . . . . . . . . . . . . . . . . . . 42
Figure 9 Sample calibration computations . . . . . . . . . . . . . . . . . . . . 48

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.
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
1 Before You Start
Symbols Used
Table 1 International Electrical Symbols

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 (WEEE) Directive
(2002/96/EC) mark.
1.2 Safety Information
Use this instrument only as specified in this manual. Otherwise, the protection
provided by the instrument may be impaired.
The following definitions apply to the terms “Warning” and “Caution”.
•“WARNING” identifies conditions and actions that may pose hazards to
the user.
•“CAUTION” identifies conditions and actions that may damage the in-
strument being used.
1.2.1 WARNINGS
To avoid possible electric shock or personal injury, follow these guidelines.
GENERAL
•DO NOT use the instrument for any application other than calibration
work. The instrument was designed for temperature calibration. Any other
use of the unit may cause unknown hazards to the user.
•DO NOT use the unit in environments other than those listed in the user’s
guide.
•DO NOT overfill the bath. Overflowing extremely cold or hot fluid may
be harmful to the operator. See Section 5.3, Bath Preparation and Filling,
for specific instructions.
•Follow all safety guidelines listed in the user’s manual.
•Calibration Equipment should only be used by Trained Personnel.
•If this equipment is used in a manner not specified by the manufacturer,
the protection provided by the equipment may be impaired.
•Before initial use, or after transport, or after storage in humid or semi-hu-
mid environments, or anytime the instrument has not been energized for
more than 10 days, the instrument needs to be energized for a "dry-out"
7011 Calibration Bath
User’s Guide
2

period of 2 hours before it can be assumed to meet all of the safety re-
quirements 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 apply-
ing power such as storage in a low humidity temperature chamber operat-
ing at 50 degree centigrade for 4 hours or more.
•DO NOT operate high temperature baths (500°C) near flammable materi-
als. Extreme temperatures could ignite the flammable material.
•Overhead clearance is required. Do not place the instrument under a cabi-
net or other structure. Always leave enough clearance to allow for safe
and easy insertion and removal of probes.
•The instrument is intended for indoor use only.
BURN HAZARD
•Extremely cold temperatures may be present in this equipment. Freezer
burns and frostbite may result if personnel fail to observe safety precau-
tions.
•High temperatures may be present in this equipment. Fires and severe
burns may result if personnel fail to observe safety precautions.
ELECTRICAL HAZARD
•These guidelines must be followed to ensure that the safety mechanisms
in this instrument will operate properly. This mains supply for the instru-
ment must be capable of supplying power to the instrument as listed in
Section 3.1, Specifications. The power cord of the instrument is equipped
with a three-pronged grounding plug for your protection against electrical
shock hazards. It must be plugged directly into a properly grounded
three-prong receptacle. The receptacle must be installed in accordance
with local codes and ordinances. Consult a qualified electrician. DO NOT
use an extension cord or adapter plug.
•DO use a ground fault interrupt device. This unit contains a liquid. A
ground fault device is advised in case liquid is present in the electrical
system and could cause an electrical shock.
•Always replace the power cord with an approved cord of the correct rat-
ing and type. If you have questions, contact an Authorized Service Center
(see Section 1.3).
•High voltage is used in the operation of this equipment. Severe injury or
death may result if personnel fail to observe the safety precautions. Before
working inside the equipment, turn off the power and disconnect the
power cord.
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.
3
1 Before You Start
Safety Information

•The instrument is equipped with a soft cutout (user settable firmware) and
a hard cutout (set at the factory). Check the flash point, boiling point, or
other fluid characteristic applicable to the circumstances of the unit opera-
tion. Ensure that the soft cutout is adjusted to the fluid characteristics of
the application. As a guideline, the soft cutout should be set 10°C to 15°C
below the flash point of the bath fluid. See Section 8.1, Heat Transfer
Fluid, for specific information on bath fluids and Section 9.8, Cutout.
1.2.2 CAUTIONS
To avoid possible damage to the instrument, follow these guidelines.
•Always operate the instrument in room temperatures listed in Section 3.2,
Environmental Conditions. Allow sufficient air circulation by leaving at
least 15 cm (6 inches) of clearance around the instrument
•DO NOT overfill the bath. Overflowing liquid may damage the electrical
system. Be sure to allow for thermal expansion of the fluid as the bath
temperature increases. See Section 5.3, Bath Preparation and Filling, for
specific instructions.
•Read Section 6, Bath Use, before placing the unit into service.
•DO NOT change the values of the bath calibration constants from the fac-
tory set values. The correct setting of these parameters is important to the
safety and proper operation of the unit.
•The refrigeration may be damaged or the lifetime shortened if the
set-point temperature is set above 60°C for more than one hour with the
refrigeration manually on. Ensure that the refrigeration is off when the
unit is used above 60°C.
•The Factory Reset Sequence should be performed only by authorized
personnel if no other action is successful in correcting a malfunction. You
must have a copy of the most recent Report of Test to restore the test pa-
rameters.
•DO NOT operate this instrument in an excessively wet, oily, dusty, or
dirty environment.
•The unit is a precision instrument. Although it has been designed for opti-
mum durability and trouble free operation, it must be handled with care.
Position the unit before the tank is filled with fluid. Use the handles pro-
vided to move the unit. Due to the weight of the compressor, it may re-
quire two people to safely move the bath. If two people are used, place
one person in the front and one person in the back of the unit, carefully
slide hands under the unit and lift in unison. The area containing the com-
pressor will be heavier than the rest of the unit. Do not move a unit filled
with fluid.
•Most probes have handle temperature limits. Be sure that the probe handle
temperature limit is not exceeded in the air above the instrument.
7011 Calibration Bath
User’s Guide
4