Fluke Hart Scientific 9101 User manual

9101 Zero Point
Dry-Well
User Manual
Rev. 5C1501
Hart Scientific
Via Acquanera, 29 22100 Como
tel. 031.526.566 (r.a.) fax 031.507.984
[e-mail] www.calpower.it

Rev. 5C1501
Fluke Corporation, Hart Scientific Division
799 E. Utah Valley Drive • American Fork, UT 84003-9775 • USA
Phone: [phone] • Telefax: +1.801.763.1010
E-mail: [email protected]
www.hartscientific.com
Subject to change without notice. • Copyright © 2005 • Printed in USA

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Authorized Service Centers. . . . . . . . . . . . . . . . . . . . . . 3
2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Specifications and Environmental Conditions . . . . . . . . . . 7
3.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Set up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 General Operation . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1 Set up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.2 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.3 Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 Test Probe Calibration . . . . . . . . . . . . . . . . . . . . . . 13
6.1 Calibration Methods. . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1.1 Comparison Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1.2 Calibration of Multiple Probes . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.2 Dry-Well Characteristics . . . . . . . . . . . . . . . . . . . . . . 14
6.2.1 Vertical Gradient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.2.2 Stabilization and Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . 15
8 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . 19
i

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 personal injury, follow these guidelines.
•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”
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.
•Use only a grounded AC mains supply of the appropriate voltage to
power the instrument. The dry-well requires a maximum of 1 amp, 50/60
Hz, 115/230 VAC (±10%).
•DO NOT connect this unit to a non-grounded, non-polarized outlet.
•DO use a ground fault interrupt device.
•HIGH VOLTAGE is used in the operation of this equipment. SEVERE
INJURY or DEATH may result if personnel fail to observe safety pre-
cautions. Before working inside the equipment, turn power off and dis-
connect power cord.
9101 Zero Point Dry-Well
User’s Guide
2

•DO NOT use this unit in environments other than those listed in the
user’s manual.
•DO NOT use this unit for any application other than calibration work.
•Follow all safety guidelines listed in the user’s manual.
•Calibration Equipment should only be used by Trained Personnel.
1.2.2 CAUTIONS
To avoid possible damage to the instrument, follow these guidelines.
•Operate the instrument in room temperatures between 5-50°C (41-122°F).
Allow sufficient air circulation by leaving at least 6 inches of space be-
tween the instrument and nearby objects. Overhead clearance needs to al-
low for safe and easy insertion and removal of probes for calibration.
•The dry-well is a precision instrument. Although it has been designed for
optimum durability and trouble free operation, it must be handled with
care. The instrument should not be operated in excessively wet, oily,
dusty, or dirty environments. It is important to keep the wells of the in-
strument clean and clear of any foreign matter. Do not operate near flam-
mable materials.
•DO NOT use fluids to clean out the well.
•If a mains supply power fluctuation occurs, immediately turn off the in-
strument. Power bumps from brown-outs and black-outs could damage
the instrument. Wait until the power has stabilized before re-energizing
the instrument.
1.3 Authorized Service Centers
Please contact one of the following authorized Service Centers to coordinate
service on your Hart product:
Fluke Corporation, Hart Scientific Division
799 E. Utah Valley Drive
American Fork, UT 84003-9775
USA
Phone: [phone]
Telefax: +1.801.763.1010
E-mail: [email protected]
Fluke Nederland B.V.
Customer Support Services
Science Park Eindhoven 5108
3
1 Before You Start
Authorized Service Centers

5692 EC Son
NETHERLANDS
Phone: [phone]
Telefax: [phone]
E-mail: [email protected]
Fluke Int'l Corporation
Service Center - Instrimpex
Room 2301 Sciteck Tower
22 Jianguomenwai Dajie
Chao Yang District
Beijing 100004, PRC
CHINA
Phone: [phone]
Telefax: [phone]
E-mail: [email protected]
Fluke South East Asia Pte Ltd.
Fluke ASEAN Regional Office
Service Center
60 Alexandra Terrace #03-16
The Comtech (Lobby D)
118502
SINGAPORE
Phone: [phone]
Telefax: [phone]
E-mail: [email protected]
When contacting these Service Centers for support, please have the following
information available:
•Model Number
•Serial Number
•Voltage
•Complete description of the problem
9101 Zero Point Dry-Well
User’s Guide
4

2 Introduction
The Hart model 9101 zero point dry-well is a precision instrument which main-
tains a constant temperature at 0°C. It can be used to provide a stable zero ref-
erence for thermocouples or for calibrating temperature probes.The 9101 has
three wells so that multiple probes may be calibrated and compared at once.
The 9101 uses solid-state electronics to control the temperature of an aluminum
block. The block temperature is monitored with a high sensitivity thermistor
sensor. The controlling circuit adjusts the current to thermoelectric modules
which cool the block maintaining a stable temperature. Since the current to the
cooling modules is constant DC there is no problem with induced EMF noise in
the user’s probes or thermocouples due to switching transients of the cooling
circuits. Because the temperature control is done with solid-state electronics the
9101 is rugged and stable. The zero point dry-well will not be damaged by
subfreezing temperatures during shipping or storage.
The 9101 is calibrated at the factory for NIST traceable accuracy. It may also
be easily calibrated in the field to the user’s own standard.
5
2 Introduction
Figure 1 9101 Zero Point Calibrator

3 Specifications and Environmental
Conditions
3.1 Specifications
Temperature 0°C
Accuracy ±0.02°C typical, ±0.05°C maximum (18°C–25°C ambient)
Stability ±0.005°C
Temperature
Coefficient
±0.005°C/°C amb.
Stabilization Time Approximately 30 minutes (the ready lamp indicates stable control at 0°C)
Operable
temperature
range
5 to 27°C, 40 to 80°F
Accuracy
temperature
range
18 to 25°C, 64 to 77°F
Cooling time: 15 to 30 min., Depending on ambient
Well 3 wells, 2 outside wells .25" dia. X 6" deep, center well .280" dia x 6" deep
Power 115 VAC (±10%)1 A or 230 VAC (±10%) 0.5 A, 50/60 Hz, 125 W
Dimensions 12.25"H x 8.5”W x 5.75"D (311 x 216 x 146 mm)
3.2 Environmental Conditions
Although the instrument has been designed for optimum durability and trou-
ble-free operation, it must be handled with care. The instrument should not be
operated in an excessively dusty or dirty environment. Maintenance and clean-
ing recommendations can be found in the Maintenance Section of this manual.
The instrument operates safely under the following conditions:
•temperature range: 5–50°C (41–122°F)
•ambient relative humidity: maximum 80% for temperature <31°C, de-
creasing linearly to 50% at 40°C
•pressure: 75kPa–106kPa
•mains voltage within ±10% of nominal
•vibrations in the calibration environment should be minimized
•altitude does not effect the performance or safety of the unit
7
3 Specifications and Environmental Conditions
Specifications

3.3 Warranty
Fluke Corporation, Hart Scientific Division (Hart) warrants this product to be
free from defects in material and workmanship under normal use and service
for a period as stated in our current product catalog from the date of shipment.
This warranty extends only to the original purchaser and shall not apply to any
product which, in Hart's sole opinion, has been subject to misuse, alteration,
abuse or abnormal conditions of operation or handling.
Software is warranted to operate in accordance with its programmed instruc-
tions on appropriate Hart products. It is not warranted to be error free.
Hart's obligation under this warranty is limited to repair or replacement of a
product which is returned to Hart within the warranty period and is determined,
upon examination by Hart, to be defective. If Hart determines that the defect or
malfunction has been caused by misuse, alteration, abuse or abnormal condi-
tions or operation or handling, Hart will repair the product and bill the pur-
chaser for the reasonable cost of repair.
To exercise this warranty, the purchaser must forward the product after calling
or writing an Authorized Service Center (see Section 1.3) for authorization.
The Service Centers assume NO risk for in-transit damage.
THE FOREGOING WARRANTY IS PURCHASER'S SOLE AND EXCLU-
SIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EX-
PRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY
IMPLIED WARRANTY OR MECHANTABILITY, OR FITNESS FOR ANY
PARTICULAR PURPOSE OR USE. HART SHALL NOT BE LIABLE FOR
ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAM-
AGES OR LOSS WHETHER IN CONTRACT, TORT, OR OTHERWISE.
9101 Zero Point Dry-Well
User’s Guide
8