Hart Scientific 9100 HDRC User manual

Model 9100 HDRC
Handheld Dry-well
User Manual
Rev. 8A1601

© Copyright,1997
Hart Scientific, Inc.
799 E. Utah Valley Drive
American Fork, Utah 84003-9775
Telephone [phone] • Fax [phone]
Internet: http://www.hartscientific.com

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WARNING
To ensure the safety of operating personnel, and to avoid damage to this equipment:
DO NOT operate this unit without a properly grounded, properly polarized power cord.
DO NOT connect this unit to a non-grounded, non-polarized outlet.
DO USE a ground fault interrupt device.
WARNING
To ensure the safety of personnel, and to avoid damage to equipment:
DO NOT use this unit for any application other than calibration work.
DO NOT use this unit in environments other than those listed in the user’s manual.
Continous use of this equipment at high temperatures for extended periods of time
requires caution.
Completely unattended high temperature operation is not recommended for
safety reasons.
Components and heater lifetimes can be shortened by continuous high temperature opera-
tion.
Follow all safety guidelines listed in the user’s manual.
WARNING
CALIBRATION EQUIPMENT SHOULD ONLY BE USED BY TRAINED PERSONNEL.

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Table of Contents
1 Introduction. . . . . . . . . . . . . . . . . . . . . . 1
2 Specifications and Environmental Conditions. . . 3
2.1 Specifications. . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Environmental Conditions . . . . . . . . . . . . . . . . 3
2.3 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Safety Guidelines . . . . . . . . . . . . . . . . . . 5
4 Quick Start . . . . . . . . . . . . . . . . . . . . . . 7
4.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 Set-up. . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.3 Power. . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Parts and Controls . . . . . . . . . . . . . . . . . . 9
5.1 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2 Prop View . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3 Front Panel . . . . . . . . . . . . . . . . . . . . . . . 11
6 General Operation . . . . . . . . . . . . . . . . . 13
6.1 Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.2 Setting the Temperature. . . . . . . . . . . . . . . . . 13
7 Controller Operation . . . . . . . . . . . . . . . . 15
7.1 Programming . . . . . . . . . . . . . . . . . . . . . . 15
7.2 Locking/Unlocking the Controller . . . . . . . . . . . . 15
7.3 Switching display units . . . . . . . . . . . . . . . . . 15
8 Test Probe Calibration . . . . . . . . . . . . . . . 19
8.1 Calibration Methods . . . . . . . . . . . . . . . . . . . 19
8.1.1 Direct Calibration . . . . . . . . . . . . . . . . . . . . . . . . 19
8.1.2 Comparison Calibration. . . . . . . . . . . . . . . . . . . . . 19
8.1.3 Calibration of Multiple Probes. . . . . . . . . . . . . . . . . . 20
8.2 Dry-Well Characteristics. . . . . . . . . . . . . . . . . 20
8.2.1 Vertical Gradient . . . . . . . . . . . . . . . . . . . . . . . . 20
8.2.2 Stabilization and Accuracy . . . . . . . . . . . . . . . . . . . 20
9 Calibration Procedure . . . . . . . . . . . . . . . 23
9.1 Pre-Calibration . . . . . . . . . . . . . . . . . . . . . 23
9.2 Calibration. . . . . . . . . . . . . . . . . . . . . . . . 23
9.2.1 Span Adjust. . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.2.2 Zero Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.2.3 Accuracy Check . . . . . . . . . . . . . . . . . . . . . . . . 24
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10 Maintenance . . . . . . . . . . . . . . . . . . . . 25
11 Troubleshooting . . . . . . . . . . . . . . . . . . 27
11.1 Troubleshooting. . . . . . . . . . . . . . . . . . . . . 27
11.2 CE Comments. . . . . . . . . . . . . . . . . . . . . . 28
11.2.1 EMC Directive. . . . . . . . . . . . . . . . . . . . . . . . . . 28
11.2.2 Low Voltage Directive (Safety) . . . . . . . . . . . . . . . . . 28
11.3 Wiring Diagram . . . . . . . . . . . . . . . . . . . . . 29
vi

1 Introduction
Hart Scientific’s Model 9100 HDRC Dry-well Calibrator is a small, portable in-
strument designed for quick on-site checks and calibration of thermocouple
and RTD temperature probes. It features an aluminum temperature block well.
Three different blocks are available. Block “A” has six holes, four that accept
probe diameters of 1/4", 5/32", 1/8", and 1/16", and two that accept probes of
3/16" diameter to allow comparison calibrations. Block “B” has four holes that
accept probe diameters of 3/8", 1/4", 3/16" and 1/8". Block “C” has two holes
that accept probe diameters of 3/16" and 1/2". See Figure 1 on page 3. The in-
strument is controlled by a microprocessor based digital PID temperature con-
troller and uses a precision platinum RTD as a sensor with a heater to control
the well temperature. The controller display will show the well temperature and
also the set-point temperature. The temperature may be set to any tempera-
ture within the range of the instrument in 0.1 degree increments by using the
three buttons on the control panel. The calibrator’s multiple fault protection de-
vices insure user and instrument safety and protection.
The 9100 dry-well calibrator was designed for portability, speed, and ease of
operation. It’s use will provide a means of quick, accurate calibration and com-
parisons of temperature sensors and other devices.
9100 Manual Rev. 8A1601 1
1 Introduction

2 Specifications and Environmental
Conditions
2.1 Specifications
Operating Range 33°C to 300°C (92°F to 572°F)
Accuracy 33 to 100°C: ±0.5°C
100 to 300°C: ±1°C
holes greater than 0.25": ±2°C
Stability ±0.2°C
Heating Times 35 to 300°C: 9.5 min.
Stabilization 3 min.
Cooling Times 300 to 100°C: 14 min.
Holes (probe sizes) See Figure 1
Block A:Sized to fit these diameters: 1/16",
1/8", 5/32", 1/4" and two at 3/16"
Block B: 1/8", 3/16", 1/4", and 3/8"
Block C: 1/2" and 3/16"
Depth 4" (1/16" hole is 3.5")
Power 115 VAC (±10%), 50/60 Hz or 230 VAC (±10%),
50/60 Hz, 1.5 amps max.
Size 2.25" H x 4.9" W x 5.9"D
(57 mm x 125 mm x 150 mm)
Weight 2 lb. 3 oz. (1.08 Kg)
2.2 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: 5–40°C (41–104°F)
•ambient relative humidity: 15–50%
9100 Manual Rev. 8A1601 3
2 Specifications and Environmental Conditions
1/16"
3/16" 3/16"
3/16"
1/8"
1/8" 3/16"
5/32"
1/4"
1/4"
3/8"
1/2"
Block “A” Block “B” Block “C”
Figure 1 Block design options for the 9100

•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
2.3 Warranty
Hart Scientific, Inc. (Hart) warrants this product to be free from defects in ma-
terial 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 Hart for authorization. Hart assumes NO risk for in-transit damage.
For service or assistance, please contact the manufacturer.
Hart Scientific, Inc.
799 East Utah Valley Drive
American Fork, UT 84003-9775
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
THE FOREGOING WARRANTY IS PURCHASER’S SOLE AND EXCLUSIVE
REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY
OR MERCHANTABILITY, OR FITNESS FOR ANY PARTICULAR PURPOSE
OR USE. HART SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, IN-
CIDENTAL, OR CONSEQUENTIAL DAMAGES OR LOSS WHETHER IN
CONTRACT, TORT, OR OTHERWISE.
4 Manual Rev. 8A1601 Hart Scientific
2 Specifications and Environmental Conditions

3 Safety Guidelines
•Operate the instrument in room temperatures between 5–40°C
(41–104°F). Allow sufficient air circulation by leaving at least 6 inches of
space between the instrument and nearby objects. Overhead clearance
needs to allow for safe and easy insertion and removal of probes for cali-
bration.
•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 well of the instru-
mentcleanandclearofanyforeignmatter.DONOT operatenearflamma-
ble materials.
•DO NOT use fluids to clean out the wells.
•Theinstrumentcangenerate extremetemperatures.Precautionsmustbe
taken to prevent personal injury or damage to objects. Probes may be ex-
tremelyhotwhen removed fromthe instrument. Cautiouslyhandle probes
to prevent personal injury. Carefully place probes on a heat resistant sur-
face or rack until they are at room temperature. Never place any objects
other than the probe to be calibrated into the well.
•Useonlya grounded ACmains supplyof theappropriate voltageto power
the instrument. The dry-well requires 1.5 amps at 115 VAC (±10%), 50/60
Hz and 0.75 amps at 230 VAC (±10%) 50/60 Hz.
•Before initial use, after transport, and anytime the dry-well has not been
energizedformorethan10days,theinstrumentneedstobeenergizedfor
a “dry-out” period of 1-2 hours before it can be assumed to meet all of the
safety requirements of the IEC 1010-1.
•Ifa mainssupply power fluctuationoccurs, immediately turnoffthe instru-
ment.Powerbumpsfrombrown-outsandblack-outscoulddamagethein-
strument. Wait until the power has stabilized before re-energizing the
instrument.
•The calibrator is equipped with an internal thermal fuse and an electrical
fuse. If a fuse blows, it is likely caused by failure of another part. If this oc-
curs, the calibrator should be returned to the factory for inspection.
9100 Manual Rev. 8A1601 5
3 Safety Guidelines

4 Quick Start
4.1 Unpacking
Unpack the dry-well carefully and inspect it for any damage that may have oc-
curred during shipment. If there is shipping damage, notify the carrier immedi-
ately.
Verify that the following components are present:
•9100 Dry-well
•Power Cord
•Manual
4.2 Set-up
Place the calibrator on a flat surface with at least 6 inches of free space
around the instrument. The prop may be swung down to raise the front of the
instrument from a horizontal position. Plug the power cord into a grounded
mains outlet. Observe that the nominal voltage corresponds to that indicated
on the back of the calibrator.
Turn on the power to the calibrator by toggling the power switch on. The fan
should begin quietly blowing air through the instrument and the controller dis-
play should illuminate after 3 seconds. After a brief self-test the controller
should begin normal operation. If the unit fails to operate please check the
power connection.
The display will begin to show the well temperature and the well heater will
start operating to bring the temperature of the well to the set-point tempera-
ture.
4.3 Power
Plug the dry-well power cord into a mains outlet of the proper voltage, fre-
quency, and current capability. Typically this will be 115 VAC (±10%), 50/60 Hz
or 230 VAC (±10%), 50/60 Hz. Turn the dry-well on using the switch on the
rear panel. The dry-well will turn on and begin to heat to the previously pro-
grammed temperature set-point. The front panel LED display will indicate the
actual dry-well temperature.
9100 Manual Rev. 8A1601 7
4 Quick Start

5 Parts and Controls
The user should become familiar with the dry-well calibrator and its parts: (See
Figures 2, 3, and 4).
5.1 Rear Panel
Power Cord - The removable power cord, (Figure 2) attaches to the back side
of the 9100. It plugs into a standard 115 VAC (optional 230 VAC) grounded
socket.
Power Switch - The power switch is located on the back panel of the calibra-
tor. The switch is either on or off. The on position is for normal operation. The
off position disconnects power to the entire unit.
Fan - A fan inside the calibrator runs continuously when the unit is being oper-
ated. This provides cooling to the instrument. Allow 6 inches of open space in
front and behind the calibrator to allow adequate ventilation.
9100 Manual Rev. 8A1601 9
5 Parts and Controls
Power Switch
Power Cord
Fan
Electronics Fuse Internal
115V 50/60 Hz
1.5 Amp Max.
American Fork
Utah 84003
Made In U.S.A.
Serial No: 4A001
Figure 2. Rear Panel

5.2 Prop View
Prop - The prop (Figure 3) is located on the bottom side of the 9100. It lays
flat against the bottom of the calibrator when not in use. It can be swung down
into a standing position when using the instrument at an inclined position.
The prop was not designed to be used as a handle for carrying
the instrument. To avoid damage, it should not be forced be-
yond the inclined position of the calibrator.
10 Manual Rev. 8A1601 Hart Scientific
5 Parts and Controls
Figure 3. Side view of the 9100 showing the prop

5.3 Front Panel
Well Block - Located on the right side of the front panel (while facing the front
of the 9100) is the well opening where a block (Figure 1 on page 3) designed
to accept different probe sizes is installed. Each block is designed to accept
different diameter temperature sensors. Three different blocks are available.
Block “A” has six holes, four that accept probe diameters of 1/4", 5/32", 1/8",
and 1/16", and two that accept probes of 3/16" diameter to allow comparison
calibrations. Block “B” has four holes that accept probe diameters of 3/8", 1/4",
3/16" and 1/8". Block “C” has two holes that accept probe diameters of 3/16"
and 1/2". Surrounding the well opening are small ventilation holes which pro-
vide cooling to the instrument.
Controller Display - The numeric LED display shows the process tempera-
ture or the actual temperature of the well from 0.0 to 300.0°C. (0.0 to 572.0°F.)
The display shows the set-point temperature when the ✱button is pressed.
Located in the upper left of the temperature display is the main set-point (SP1)
LED. This is the cycle indicator and shows the on/off state of the block heater.
Controller Buttons - The three buttons on the controller allow for adjustment
of the set-point temperature. When pressed, the button marked ✱toggles the
display from the actual block temperature to the set-point temperature with the
units of measure being used (°C or °F). While holding the ✱button, the
set-point temperature can be changed by pressing and holding in either the
button marked ▲or ▼until the desired set-point is reached. The longer the
keys are held down, the faster the set-point will change. When the desired
set-point temperature is reached, releasing ✱button immediately changes the
display back to the actual block temperature and the controller begins to heat
or cool to the new set-point temperature.
9100 Manual Rev. 8A1601 11
5 Parts and Controls
9100 HDRC
Figure 4. Front Panel

6 General Operation
6.1 Set-up
Place the calibrator on a flat surface with at least 6 inches of free space in
front of and behind the instrument. The prop may be swung down to raise the
front of the instrument from a horizontal position. Plug the power cord into an
AC grounded outlet of the appropriate voltage.
The well must be clear of any foreign objects before probes are inserted. Turn
on the power to the calibrator by toggling the switch at the rear of the instru-
ment to the on position. The controller display should illuminate and after a few
seconds the fan should begin blowing air through the instrument. If the unit
fails to operate check the power connection. When the calibrator is first pow-
ered on all of the LED segments will temporarily illuminate as the controller
performs a brief self-test and set-up. The display will then begin to show the
actual block temperature and the well heater will begin operating to bring the
temperature of the well to the set-point temperature.
6.2 Setting the Temperature
The dry-well calibrator may be set to any temperature between 0.0 and
300.0°C in 0.1°C increments. To set the temperature, simply press and hold
the ✱key and the appropriate ▲or ▼button until the desired temperature is
attained. Pressing the ✱button changes the numeric display to show the
set-point temperature and activates the ▲and ▼keys. Note that the longer
the ▲or ▼keys are held down, the faster the set-point will change. When the
desired set-point temperature is reached, release the ▲or ▼and the ✱but-
tons. The panel will resume display of the actual block temperature.
If the set-point temperature is changed the controller will cause the unit to heat
or cool to the desired set-point temperature. The cycle indicator LED will pulse
on and off indicating the duty cycle of the heater. The display will indicate the
actual block temperature which continuously changes until it reaches the
set-point temperature. A small overshoot in the block temperature is typical as
it stabilizes to the set-point temperature. Three to five minutes is normally re-
quired for the block to reach the set-point temperature if the set-point is ad-
justed to a higher value. It may take a little longer if the set-point is adjusted to
the outer temperature limits.
9100 Manual Rev. 8A1601 13
6 General Operation