Each product from Fluke Corporation, Hart Scientic Division ("Hart") is warranted to be free from
defects in material and workmanship under normal use and service. The warranty period is 2 years for the
Thermometer Readout. The warranty period begins on the date of the shipment. Parts, product repairs, and
services are warranted for 90 days. The warranty extends only to the original buyer or end-user customer of
a Hart authorized reseller, and does not apply to fuses, disposable batteries or to any other product, which in
Hart's opinion, has been misused, altered, neglected, or damaged by accident or abnormal conditions of operation or handling. Hart warrants that software will operate substantially in accordance with its functional
specications for 90 days and that it has been properly recorded on non-defective media. Hart does not
warrant that software will be error free or operate without interruption. Hart does not warrant calibrations on
the Thermometer Readout.
Hart 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 Hart. Warranty support is available if product is purchased through a Hart authorized sales outlet or Buyer has paid the applicable international price. Hart reserves the right to invoice Buyer for importation costs of repairs/replacement parts when
product purchased in one country is submitted for repair in another country.
Hart's warranty obligation is limited, at Hart's option, to refund of the purchase price, free of charge repair,
or replacement of a defective product which is returned to a Hart authorized service center within the warranty period.
To obtain warranty service, contact your nearest Hart authorized service center or send the product, with
a description of the difculty, postage, and insurance prepaid (FOB Destination), to the nearest Hart authorized service center. Hart assumes no risk for damage in transit. Following warranty repair, the product
will be returned to Buyer, transportation prepaid (FOB Destination). If Hart determines that the failure was
caused by misuse, alteration, accident or abnormal condition or operation or handling, Hart will provide an
estimate or repair costs and obtain authorization before commencing the work. Following repair, the product
will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return
transportation charges (FOB Shipping Point).
THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. HART SHALL NOT
BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL. OR CONSEQUENTIAL DAMAGES OR
LOSSES, INCLUDING LOSS OF DATA, WHETHER ARISING FROM BREACH OF WARRANTY OR
BASED ON CONTRACT, TORT, RELIANCE OR ANY OTHER THEORY.
Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or
limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not
apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court of competent jurisdiction, such holding will not affect the validity or enforceability of any other provision.
Fluke Corporation, Hart Scientific Division
799 E. Utah Valley Drive • American Fork, UT 84003-9775 • USA
Phone: +1.801.763.1600 • Telefax: +1.801.763.1010
E-mail: support@hartscientic.com
The Hart 1529 is a low-cost, high-accuracy, digital thermometer readout designed to
be used with 25 and 100 W PRTs, thermistors, and thermocouples. Its unique combination of features makes it suitable for a wide variety of applications from laboratory
measurement to industrial processes. Features of the 1529 include:
●
Measures 25 W and 100 W PRTs, thermistors, and thermocouples
●
Four inputs: two PRT/thermistor and two thermocouple (standard conguration)
●
Four-wire connection eliminates lead resistance effects in PRTs
Automatic current reversal eliminates thermoelectric EMF errors
●
Accuracy: PRTs to 0.006 °C, thermistors to 0.002 °C, and thermocouples to
0.3 °C
●
Typical resolution: PRTs 0.001 °C, thermistors 0.0001 °C, thermocouples
0.01 °C
●
Measures four sensors simultaneously with a fast one-second measurement
cycle
●
Measures one sensor at 10 readings per second (limited accuracy)
●
Adjustable moving average for extra precision
●
Stores over 8,000 measurements internally
●
Accepts ITS-90, PT-100 (ASTM E1137, DIN 43760, or IEC-751), and
Callendar-Van Dusen PRT characterizations
●
Accepts Steinhart-Hart R(T) or T(R) and YSI-400 type thermistor
characterizations
●
Accepts thermocouple types B, E, J, K, N, R, S, T, Au-Pt, and polynomial
specied
●
Temperature offsets for improved thermocouple accuracy
●
Stores 10 additional sets of probe parameters
●
Eight programmable display sets for display probe information, measurement
statistical data, or difference between measurements
●
Password protection of settings
●
Large, LCD, user-congurable, display viewable in bright or dim lighting
●
Serial RS-232 interface standard; IEEE-488 GPIB interface optional
●
Powered by external AC supply, 12-15V DC source, or internal rechargeable
battery
Symbols Used
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 guide.
1
1529 Chub-E4 Thermometer Readout
Symbols Used
Table 1 Symbols used
SymbolDescription
AC (Alternating Current)
AC-DC
Battery
Complies with European Union directives
DC
Double Insulated
Electric Shock
Fuse
PE Ground
Hot Surface (Burn Hazard)
Read the User’s Guide (Important Information)
Off
On
Canadian Standards Association
C-TICK Australian EMC mark
2
SymbolDescription
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. Refer to the safety information in The
following sections.
The following denitions 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 instrument
being used.
1.2.1 Warnings
●
DO NOT use this unit in environments other than those listed in the User’s
Guide.
●
Follow all safety guidelines listed in the User’s Guide.
●
Calibration equipment should only be used by trained personnel.
●
This instrument can measure extreme temperatures. Precautions must be taken
to prevent personal injury or damage to objects. Probes may be extremely
hot or cold. Cautiously handle probes to prevent personal injury. Carefully
place probes on a heat/cold resistant surface or rack until they reach room
temperature.
●
If this equipment is used in a manner not specied 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-humid
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 requirements 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 applying power such as storage in a low
humidity temperature chamber operating at 50 °C for 4 hours or more.
●
The AC adapter can present safety concerns if misused or damaged. To avoid
the risk of electric shock or re, do not use the AC adapter outdoors or in a
dusty, dirty, or wet environment. If the cord, case, or plug of the adapter is
damaged in any way, discontinue its use immediately and have it replaced.
Never disassemble the AC adapter. Use only the AC adapter provided with the
instrument or equivalent adapter recommended by the manufacturer of this
instrument.
●
The AC adapter has circuits with high voltage inside that could present danger
of electrical shock or re if exposed. If the AC adapter is damaged in any way
or becomes hot, discontinue its use immediately, disconnect it from any AC
Introduction and Safety Information
Safety Information
3
1529 Chub-E4 Thermometer Readout
Authorized Service Centers
supply, and have it replaced. Do not attempt to open, repair, or continue using a
damaged or defective AC adapter.
●
The instrument batteries can present danger if not handled properly. To avoid
the risk of exposure to dangerous substances or explosion, immediately remove
the batteries and discontinue use if they leak or become damaged. Never allow
the batteries to be shorted, heated, punctured, or dropped. If the instrument is
physically damaged, immediately remove the batteries to insure that they do
not become shorted. While removed from the instrument, store the batteries in
a location so that they do not come into contact with metal or uids that might
short circuit the batteries and where they are safe from excessive temperatures.
Used batteries must be disposed of properly. Check your local regulations for
additional information. Never dispose of batteries in re which may result in
explosion with the possibility of personal injury or property damage.
●
DO NOT use this instrument in combination with any probe ( PRT, thermistor,
or thermocouple) to measure the temperature or resistance of any device where
the probe might come in contact with a conductor that is electrically energized.
Severe electric shock, personal injury, or death may occur.
1.2.2 Cautions
●
If the instrument is dropped, struck, or handled in a way that causes internal
or external physical damage, immediately unplug the AC adapter, remove the
batteries, discontinue use, and contact the factory for repair. Do not attempt to
disassemble or repair the instrument, batteries, or AC adapter. Refer repairs or
replacement components to the manufacturer.
●
The instrument and thermometer probes are sensitive and can be easily
damaged. Always handle these devices with care. DO NOT allow them to be
dropped, struck, stressed, or overheated.
●
Probes are fragile devices which can be damaged by mechanical shock,
overheating, and absorption of moisture or uids in the wires or hub. Damage
may not be visibly apparent but nevertheless can cause drift, instability, and loss
of accuracy. Observe the following precautions:
●
DO NOT allow probes to be dropped, struck, bent, or stressed.
●
DO NOT overheat probes beyond their recommended temperature range.
●
DO NOT allow any part of the probe other than the sheath to be immersed in
uid.
●
DO NOT allow the probe hub or wires to be exposed to excessive temperatures.
●
Keep the probe wires clean and away from uids.
1.3 Authorized Service Centers
Please contact one of the following authorized Service Centers to coordinate service
on your Hart product:
4
Fluke Corporation, Hart Scientic Division
799 E. Utah Valley Drive
American Fork, UT 84003-9775
USA
Phone: +1.801.763.1600
Telefax: +1.801.763.1010
E-mail: support@hartscientific.com
Fluke Nederland B.V.
Customer Support Services
Science Park Eindhoven 5108
5692 EC Son
NETHERLANDS
Phone: +31-402-675300
Telefax: +31-402-675321
E-mail: ServiceDesk@fluke.nl
Introduction and Safety Information
Authorized Service Centers
Fluke Int’l Corporation
Service Center - Instrimpex
Room 2301 Sciteck Tower
22 Jianguomenwai Dajie
Chao Yang District
Beijing 100004, PRC
CHINA
Phone: +86-10-6-512-3436
Telefax: +86-10-6-512-3437
E-mail: xingye.han@fluke.com.cn
5
1529 Chub-E4 Thermometer Readout
Authorized Service Centers
Fluke South East Asia Pte Ltd.
Fluke ASEAN Regional Office
Service Center
60 Alexandra Terrace #03-16
The Comtech (Lobby D)
118502
SINGAPORE
Phone: +65 6799-5588
Telefax: +65 6799-5588
E-mail: antng@singa.fluke.com
When contacting these Service Centers for support, please have the following information available:
●
Model Number
●
Serial Number
●
Voltage
●
Complete description of the problem
6
Specications and Environmental Conditions
2 Specications and Environmental Conditions
2.1 Specications
PRTThermistor Thermocouple
Inputs2 channels PRT/thermistor and 2 channels thermocouple
Temperature
1
Range
Measurement
Range
Resistance /
Voltage Accuracy
CharacterizationsITS-90,
Temperature
Accuracy (meter
1
only)
Temperature
Resolution,
3
typical
Operating Range116 to 30°C
Measurement
Interval
Excitation Current 1mA
Display1.3” x 5” backlit LCD graphical display
Display Units
Data LoggingUp to 8,000 time- and date-stamped measurements can be logged
Logging Intervals0.1, 0.2, 0.5, 1, 2, 5, 10, 30, or 60 seconds; 2, 5, 10, 30, or 60 minutes
AveragingMoving average of most recent 2 to 10 readings, user selectable
Statistical DataAverage, standard deviation, minimum, maximum, spread, N, difference (delta)
or 4 channels PRT/thermistor
or 4 channels thermocouple
PRT/thermistor channels accept 2,3, or 4 wires
Thermocouple channels accept B, E, J, K, N, R, S, T, and Au-Pt thermocouple
types
–189 to 960°C–50 to 150°C–270 to 1800°C
0 to 400W0 to 500kW
0 to 20W :
2
±0.0005W
20 to 400W: ±25
ppm of reading
0 to 5kW: ±0.0005kW
5 to 200kW: ±100 ppm
of reading
200 to 500 KW: ±300
–10 to 100 mV
–10 to 50 mV: ±0.005 mV
50 to 100 mV: ±100 ppm of
reading
(Internal RJC: ±0.25°C)
deviation function applied
to NIST 175, 6th-order
polynomial
Callendar-Van Dusen
±0.004°C at –100°C
±0.006°C at 0°C
±0.009°C at 100°C
±0.012°C at 200°C
±0.018°C at 400°C
±0.024°C at 600°C
±0.0025°C at 0°C
±0.0025°C at 25°C
±0.004°C at 50°C
±0.010°C at 75°C
±0.025°C at 100°C
Type Ext./Int.RJC
B ±0.6°C/±0.6°C
E ±0.07°C/±0.25°C
J ±0.1°C/±0.35°C
K ±0.15°C/±0.4°C
N ±0.15°C/±0.3°C
R ±0.4°C/±0.5°C
S ±0.5°C/±0.6°C
T ±0.1°C/±0.3°C
0.001°0.0001°0.01 to 0.001°
0.1 second to 1 hour; inputs may be read sequentially or simultaneously at 1
second or greater interval
CommunicationsRS-232 port included, IEEE-488 (GPIB) optional
AC Power100 to 240 VAC, 50-60 Hz, 0.4A
DC Power12 to 16 VDC, 0.5 A (battery charges during operation from 14.5 to 16 VDC, 1.0A)
BatteryNiMH, 8 hours operation typical without backlight, 3 hours to charge, 500 cycles
Size4.0” H x 7.5” W x 8.2” D (102 x 191 x 208 mm)
Weight4.5 lbs. (2 kg)
1
The sensor generally limits the actual temperature range. Temperature accuracy specifications do not
include sensor accuracy. Thermistor temperature accuracy assumes a 10kW sensor. Thermocouple
accuracy is with internal reference junction compensation; accuracy is improved with external reference
junction compensation. Thermocouple temperature accuracies are given for external reference junction
compensation and internal reference junction compensation, respectively.
2
Measurement accuracy specifications apply within the operating temperature range and assume 4-sample
averaging and 4 lead wires for PRTs. With 3-wire RTDs add 0.05W to the measurement accuracy plus the
maximum possible difference between the resistances of the lead wires.
3
Actual resolution can be set greater than typical resolution, but the added digits (0.0001 max.) may not be
meaningful to the measurement.
bare-wire, or banana plug terminations
Universal receptacle accepts
miniature and standard
connectors
2.2 Environmental Conditions
Although the instrument has been designed for optimum durability and trouble-free
operation, it must be handled with care. The instrument should not be operated in an
excessively dusty, dirty, or wet environment. Maintenance and cleaning recommendations can be found in Section 9, Maintenance on page 123.
For full accuracy, operate the instrument in ambient temperatures between 16–30 °C
(61–86 °F). The battery may not charge properly at temperatures above 30 °C. Do
not operate the instrument in an environment colder than 5 °C (41 °F) or warmer than
40 °C (104 °F).
The instrument operates safely under the following conditions:
●
Ambient temperature range: absolute 5–40 °C (41–104 °F) [full accuracy 16–
30 °C (61–86 °F)]
●
Ambient relative humidity: maximum 80% for temperature <31 °C, decreasing
linearly to 50% at 40 °C
●
Pressure: 75 kPa–106 kPa
●
Vibration should be minimized
●
Altitude less than 2,000 meters
●
Indoor use only
8
3 Quick Start
This section briey explains the basics of setting up and operating your 1529 Thermometer Readout.
3.1 Unpacking
Carefully unpack the 1529 thermometer readout. Verify that the following items are
present:
●
1529 Thermometer Readout (The battery inside the 1529 is completely charged
when shipped. Initial charging is not required.)
●
AC Adapter/Charger and power cord
●
Serial Cable
●
User’s Guide
●
Report of Calibration with calibration label
●
Probe (optional-must be purchased separately)
●
Two ferrites (for use with probes as described in Section 3.4.1, Using the
Clamp-on Ferrites on page 9)
If all items are not present, contact an Authorized Service Center (see Section 1.3,
Authorized Service Centers on page 4)
Quick Start
Connect the Probe
3.2 Use Proper Care
You must understand the safety issues related to the 1529. Be aware that potential hazards exist due to high temperatures and battery chemicals. Carefully read the Warnings
and Cautions in Section 1.2, Safety Information on page 3.
The 1529 and any thermometer probes used with it are sensitive instruments that can
be easily damaged. Always handle these devices with care. DO NOT allow them to be
dropped, struck, stressed, or over-heated.
3.3 Learn About the Features and Components
Familiarize yourself with the features and accessories of the 1529 by reading Section
4, Parts and Controls on page 13.
3.4 Connect the Probe
The PRT/thermistor or thermocouple probe connects on the back panel of the 1529
using patented mini-DWF connectors (PRT/thermistor) or the universal receptacles
(thermocouples).
3.4.1 Using the Clamp-on Ferrites
Clamp-on ferrites are provided with this product for the use of improving its electromagnetic (EM) immunity in environments of excessive EM interference. During EMC
9
1529 Chub-E4 Thermometer Readout
Connect the Power Source
testing we found that ferrites clamped around the probe cables and power cord reduced
the risk that EM interference affects measurements. Therefore, we recommend that
the clamp-on ferrites provided (Steward P/N 28A2025-0A2) be used on the cables of
probes attached to this product, especially if it the product is used near sources of EM
interference such as heavy industrial equipment.
To attach a ferrite to a probe cable, make a loop in the cable near the connector and
clamp the ferrite around half of the loop as shown in Figure 1 on this page The ferrite
can be easily snapped open and moved to a new probe when needed.
Figure 1
Using the Clamp-on Ferrites
probe cable
clamp-on ferrite
3.5 Connect the Power Source
The 1529 draws power from either a 15-volt DC power supply (the included AC
adapter) connected to the DC input or the internal re-chargeable battery pack. To use
the AC adapter, plug it into a wall outlet of the appropriate voltage and insert the DC
plug into the DC power input of the 1529 (see Figure 3 on page 14).
3.6 Switch the Power On
Power is turned on and off with the power switch located on the top right corner of
the back panel. To switch the power on, toggle the power switch to the ‘ON’ position.
To switch power off, toggle the power switch to the ‘OFF’ position. The instrument
takes a few seconds to power up, initialize, and begin normal operation. A self-test is
performed displaying the channel conguration and status of the system, calibration,
GPIB, memory, and buttons. If the thermometer readout calibration has expired, the
user is notied and must press the Enter button to continue initialization. If an error
message is displayed on power up see Section 10, Troubleshooting on page 125.
3.7 Measure Temperature
After initialization, the temperature measurements for the congured channels are displayed. The appropriate sensor type must be selected and coefcients entered for the
measurements to be accurate (see Section 6.2.1, Edit Probe on page 30). Place the sensors of the probe into the object(s) you want to measure. DO NOT force the probe(s)
or otherwise allow them to be bent, stressed, or overheated. Probes can be easily dam-
10
Quick Start
Measure Temperature
aged if misused. For further suggestions on handling the probe and using the 1529 and
probe to measure temperature accurately, see Section 5, General Operation on page 17.
For information on the various modes of operation of the 1529 see Section 6, Menu
Functions on page 23.
11
Parts and Controls
4 Parts and Controls
The functions of the various features of the 1529 are described below.
4.1 Front Panel Buttons
The front panel buttons Enter/Menu, Unit, Contrast, and Exit are used to select and
alter the functions of the thermometer readout (see Figure 2).
Back Panel
2
24.634C
4
24.015C
1 AVE: 24.1530 C
1 STD: 0.0038 C
1 SPR: 0.0219 C
TIME: 14:58:43
EXIT
Figure 2
Front Panel
1
24.159C
3
24.142C
1 TYP: CVD
1 SER: 145-560
1 –T1: 0.0000 C
ALOG: OFF 0%
CHUB E-4 THERMOMETER READOUT
1529
ENTER / MENUUNITCONTRAST
The function of each button is as follows:
Enter/Menu - This button displays and scrolls through the menu options. Use this button to select the menu to enter and to save changes made to menu choices.
Unit -LR Use these buttons to select the units C, F, or K when not in the menu
structure. In conjunction with the Menu button, use these buttons to scroll left and
right through menu options and choices.
Contrast -UD Use these buttons to lighten or darken the display when not in the
menu structure. In conjunction with the Menu button, use these buttons to scroll up
and down through menu options and choices.
Exit - Use this button to exit any menu. When editing a parameter, if the Exit button is
pressed, the immediate operation is canceled and control skips to the next parameter.
Holding the button down for several seconds, exits to the main display.
4.2 Back Panel
The back panel consists of the power switch, AC adapter connector, charging indicator, RS-232 port connector, IEEE-488 port connector (optional), serial label, and probe
connectors. The 1529 thermometer readout can be congured in three different ways.
The conguration affects the probe connectors on the back panel. The Model 1529 is
congured with one PRT/thermistor input module of two channels and one thermo-
13
1529 Chub-E4 Thermometer Readout
Back Panel
couple input module of two channels. The Model 1529-R is congured with two PRT/
thermistor input modules of four channels. The Model 1529-T is congured with two
thermocouple input modules of four channels. Figure 3 shows the back panel and the
three different congurations.
14
Figure 3 Back Panel
Parts and Controls
Power Switch - The power switch turns the thermometer readout on and off.
AC Adapter Connecor - The AC adapter plugs into the DC power input to recharge
the battery and to power the instrument while the battery is being charged (see Section
5.3, Battery on page 17).
Charging Indicator - The charging indicator lights when the AC adapter is connected.
It glows green when the battery is at full charge and amber when the battery is being
charged.
RS-232 Port Connector - The DB-9 connector is for interfacing the thermometer readout to a computer or terminal with serial RS-232 communications.
IEEE-488 Port (optional) - The GPIB connector is for interfacing the thermometer
readout to a computer or terminal with IEEE-488 communications.
Serial Label - The serial label shows the instrument model and serial number.
Probe Connectors - Probe(s) must be connected either to the patented mini-DWF
connectors (PRT/thermistor probes) or to the universal receptacle (thermocouples) for
operation.
4.3 Accessories
The 1529 thermometer readout comes standard with a hand strap on the side for easy
carrying of the instrument. The following accessories are also available:
●
2513-1529 Rack Mount Kit
●
9323 Soft Carrying Case
●
9322 Hard Carrying Case
●
2380 Small Thermocouple Connector Kit
●
2381 Large Thermocouple Connector Kit
Accessories
15
General Operation
5 General Operation
This section explains basic operation of the 1529 thermometer readout. Detailed operation of the 1529 is explained in Sections and . Section explains the menu structure
and the functions available in the menu structure and Section explains the communications interface for operating the 1529 remotely.
5.1 Display
The 1529 display consists of two parts. The top portion of the display is used for
displaying the measurements from one to four inputs. The bottom portion of the display is reserved for the programmable elds and eld display sets. Information about
the channels and measurements can be displayed in greater detail such as min, max,
spread, standard deviation, and many other functions. When the measure period is 0.1
or 0.2 seconds (fast measurement mode), the programmable elds and eld display set
information are not displayed.
5.2 Changing Units
The 1529 thermometer readout is capable of displaying temperature in Celsius (C),
Fahrenheit (F), or Kelvin (K). (Displaying in units of W, KW, or mV is also available
through the PROBE menu and is channel specic.) Temperature units are changed on
all channels (not individually) by pressing the buttons on the front panel when not in
the menu structure. Press the Unit, LR, buttons to scroll forward and backward
through C, F, or K. All channels or elds that are displaying temperature on the upper
or lower display are updated to the new units.
Channels that are set to W, KW, or mV in the PROBE menu are left unchanged when
temperature units are modied. Changing the units resets the statistical calculations
(displayed in the bottom portion of the display).
Battery
5.3 Battery
The 1529 thermometer readout has a built-in nickel-metal-hydride battery pack that
can power the instrument for about eight hours before needing to be recharged. The
battery discharges more quickly when the display backlight is used. The percent of
battery charge remaining is displayed on the bottom portion of the display when the
battery power is being used. The battery percentage is approximate and should only be
used as a general guideline when determining the length of charge remaining. The battery is recharged in situ (while in place) using the AC adapter that is provided.
Plug the AC adapter into the wall outlet and connect the DC plug of the adapter
into the 1529. The battery is charged as necessary whether or not the instrument is
switched on. The power control circuit inside the instrument manages battery charging
and stops charging the battery automatically when the battery is fully charged. Only
charge the battery when ambient temperature is between 16 °C and 30 °C (61 °F and
86 °F) It normally takes about three hours to fully charge the battery. The instrument
can be operated while the battery is being charged. The charging indicator on the back
17
1529 Chub-E4 Thermometer Readout
Probe Input Modules
panel is green when the battery is fully charged and amber when being charged using
the AC adapter.
The battery may self-discharge over several months, especially if the temperature is
warm. The battery pack can be used for a minimum of 500 charge-discharge cycles before needing to be replaced. Replacement battery packs are available from the manufacturer. The battery pack can be easily removed and replaced in the eld by following
this procedure:
1. Power the 1529 off and unplug the AC adapter from the unit.
2. Turn the 1529 over to expose the battery compartment. Remove the battery
cover hex screw. Place the screw in a safe place so it won’t get lost. Flip open
the battery cover to reach the battery pack.
3. Remove the battery pack. Gently disconnect the battery plug connector.
4. Attach the polarized plug of the new battery pack onto the connector. Note: The
battery plug is polarized and can only be plugged in one direction. DO NOT
force it. Place the battery pack in the battery compartment.
5. Close the battery cover and replace the screw. Avoid pinching the battery wires.
6. Plug in the AC adapter and charge for a minimum of four hours for the
initial charge. Used batteries must be disposed of properly. Check your local
regulations for additional information. You may return used batteries to
the manufacturer. Never dispose of batteries in re as this may result in an
explosion with the possibility of personal injury or property damage.
18
When the battery charge is not at 100%, the measurement accuracy is not affected. If
the power is interrupted while the instrument is logging measurements (on demand or
automatically), the logged data is preserved and logging resumes when the power is
restored.
5.4 Probe Input Modules
The 1529 can be congured in three ways:
●
Two RTD/thermistor input modules.
●
Two thermocouple input modules.
●
One RTD/thermistor and one thermocouple input module.
Each input module supports two channels. Your 1529 thermometer readout is congured at the factory and is not eld changeable. Input modules should never be removed
for any reason.
All possible congurations are shown in Figure 3 on page 14.
5.4.1 Connecting a PRT or Thermistor Probe
PRT and thermistor probes are attached to the resistance input module via Hart Scientic mini-DWF connectors. These patented connectors accept bare wire, spade, or
mini banana plug terminations. The connectors are color coded for ease in connecting
lead-wires.
When using 2- and 3-wire sensors, the accuracy of the 1529 is reduced as stated in
Channel 1Channel 2
the specications. Compensation is made for 3-wire PRTs, but the difference in lead
resistance affects the measurement accuracy. The 1529 thermometer readout is unable
to compensate for 2-wire lead resistance.
Attach the lead-wires of the probes as shown in Figure 4 on this page. The top termainals sense current and the bottom terminals sense potential.
General Operation
Probe Input Modules
Shield
Connecting 4-wire probes
Channel 1Channel 2
Connecting 3-wire probes
Channel 1Channel 2
Connecting 2-wire probes
Figure 4
Probe Connection Wiring Diagram
19
1529 Chub-E4 Thermometer Readout
DC Power Source
5.4.2 Connecting a Thermocouple
The 1529 thermocouple input module accepts both standard and sub-miniature size
thermocouple connectors. The connection is made with the positive terminal on the
right and the negative terminal on the left. You must use a connector that matches the
thermocouple type for the internal RJC to be accurate. For example, if you are using
a type K thermocouple you must also use a type K connector, which is made from the
same type of metal. For best results, wait two minutes before measuring after inserting
the thermocouple connector into the input module.
20
Figure 5 Thermocouple Connections
5.5 DC Power Source
Caution: For CE compliance and for performance, use only the AC adapter
shipped with the instrument by Hart Scientic. If the AC adapter needs to be replaced, contact an Authorized Service Center (see Section 1.3, Authorized
Service Centers on page 4).
The DC power source provides power to charge the battery. It can also be used to power the 1529 while the battery is being charged. The AC adapter provided with the 1529
is intended for these purposes. The DC power source plugs into the DC power input
on the back panel of the instrument. The AC adapter has circuits with high voltages
inside that could present danger of electric shock or re if exposed. If the AC adapter
is damaged in any way or becomes hot, discontinue use immediately, disconnect the
adapter from any AC supply, and replace the adapter. Do not attempt to open, repair, or
continue using a damaged or defective AC adapter.
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