UEi DT200 Instruction Manual

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1-800-547-5740 • Fax: (503) 643-6322
www.ueiautomotive.com • email: info@ueitest.com
DT200
INSTRUCTION MANUAL
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Introduction
The DT200 is a portable, battery operated temperature measuring device. With its triple display screen, it allows you to measure two inputs simultaneously, and record critical time stamped information. Since the DT200 accepts type J, K, or T probes, you can use the probes you have without changing your existing process technology. The backlit display makes reading the LCD easy even in low light areas.
Features include
• -328 to 2498˚F (-200 to 1370˚C)
• Triple display
• Backlit display
• Dual input
• Differential temperature (∆T)
• Relative function displays temperature change
• Accepts K, J and T thermocouples
• Data hold
Safety Notes
Before using this meter, read all safety information carefully. In this manual the word "WARNING" is used to indicate conditions or actions that may pose physical hazards to the user. The word "CAUTION" is used to indicate conditions or actions that may damage this instrument.
Safety precautions
These are a few common safety practices for those working around temperature critical environments:
• Follow the manufacturer’s maintenance procedures when servicing equipment
• Place ONLY thermocouples (type K, J, or T) in the DT200 thermocouple ports
• Make sure your DT200 is set for the proper thermocouple type
you are using
• Be sure the thermocouple you use can withstand the temperature extreme it may be exposed to in your service task
• Properly maintain your DT200 and calibrate it regularly
International Symbols
C o n t rols and Indicators
1. Power Switch: Powers instrument on and off.
2. Hold/Relative Switch: Freezes primary screen data or
establishes a relative zero for the primary screen information.
3. T1-T2 Switch: Toggles screen information from T1 (Primary)
and T2 (Secondary) to T2 Primary and T1 Secondary then to T1-T2 (differential) on Primary and alternating T1 and T2 temperatures on Secondary.
4. Back Light Switch: Turns back light on. Automatically turns
off in 30 seconds.
5. K/J/T Thermocouples Select Switch: Selects proper input
reference for thermocouple in use (T1 and T2 must be the same type).
6. ˚F/˚C Mode Select Switch: Toggles display data from degrees
Celsius to degrees Fahrenheit.
7. Record Mode Select Switch: Starts record mode (relative
clock), displays maximum and minimum temperatures recorded on the Primary screen along with the relative time they were recorded.
8. Thermocouple Ports: Positive and negative polarized plugs for
the thermocouple probes used (Blade type); T1 on the left, T2 on the right.
9. LCD Displays: Displays three screens of function and data
information.
10. Primary Data Screen: Displays T1, T2, or T1 minus T2
(temperature differential - TD) or a relative zero of T1, T2 or TD.
11. Secondary Data Screen: Displays time in hours and minutes
when Record is pressed and the relative time that NIM or MAX data was recorded.
12. Relative Clock Screen: Displays time in hours and minutes when
record is pressed and the relative time that MIN or MAX data was recorded.
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1
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11
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2
3
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DT200-MAN P. 1
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Functional Description
The DT200 will display all LCD segments when it is first turned on, for approximately 3 seconds. It will provide information with either one or both thermocouples plugged in.
Numerous viewing combinations are available. The LCD is divided into three distinct sections; one large (Primary) top screen and two smaller bottom screens (Secondary and Relative Clock). The three display areas keep you constantly updated with the temperature measurements and relative time information. You have a number of options regarding how and what information is presented on the LCD.
• Temperature readings area easily toggled between Fahrenheit and Celsius
• The back light illuminates the LCD for viewing in low light areas
• The HOLD button will freeze the upper display data while allowing the lower displays to continue updating
• Information about selected functions along with a low battery indicator is also displayed as appropriate
• The DT200 will default to the last mode selected when used in that setting for 10 seconds or more
NOTE: If no thermocouples are plugged in, four dashes will appear in the temperature data screens. This instrument operates and updates silently.
Auto Power Off
This instrument will shut off automatically in approximately 90 minutes. For recording or operating over longer periods of time you can defeat the auto power off function by holding down th on/off button and the hold button at the same time when turning the unit on. An “N” will appear in the middle of the screen at which time you can release the hold button. when the screen flashes over to its normal measurement mode, release the on/off button.
Mode Options
Delete and replace with Programmable user selectable start-up mode. The display will default to the mode last used if it was displayed for 10 seconds or more. For your convenience the DT200 defaults to the settings used during the last operation. The following table lists the modes of operation that can be invoked by pressing the buttons indicated. The table assumes your instrument has been powered on with two thermocouples installed and is set to display (default) T1 on the primary display, type K thermocouple, and Record off.
Operating Instructions
ACS1 Clamp Strap Adapter
For use with temperature testers measuring the temperature of pipes and tubes, e.g. super-heat measurements. The adjustable Velcro®strip clamps the probe tightly to pipes with diameters from 1/4” to 4”
(Fig 1)
.
Button
On/Off
HOLD/
RELATIVE
T1-T2
Back Light
K/J/T
˚K/˚C
Record
Response/Display
Turns instrument of (Default setting) and off
Press momentarily and the Primary display (T1, T2 or T1-T2) freezes; Press for two or more seconds - REL appears on top of LCD and the Primary display indicates the relative zero (Relative zero causes the value of the primary display to show as “000.0” - only the amount of temperature change will be indicated); Relative temperatures can be recorded. Press momentarily again and the unit returns to default
Press momentarily and the Primary display changes to T2 (Secondary screen displays T1); press momentarily again and it displays T1-T2; Secondary display alternates between T1 and T2; Press momentarily again and the instrument returns to default
Press momentarily and the back-light illuminates for approximately 30 seconds then turns off
Press momentarily and the unit cycles through K (the default), J and T thermocouple types; The current mode is displayed on the left of side of the LCD
Press momentarily and the unit toggles between Fahrenheit (the default) and Celsius temperatures; The current mode is indicated on the right side of the LCD
Press momentarily and the Relative Clock start in the lower right screen, REC is displayed in upper left of LCD - All other button functions are locked out except Power and Back-light. T1, T2, or T1-T2 is displayed on the Primary screen; The Secondary screen continues to update. Press momentarily again and the unit cycles through MAX and MIN (maximum and minimum recorded temperatures) and back to current temperature; The record mode is displayed on the LCD. Press and hold RECORD for three seconds to turn off the record function
DT200-MAN P. 2
(Fig 1)
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Maintenance
Cleaning Use a damp cloth and mild soap to clean the case of your DT200. DO NOT use harsh detergents or abrasives as these may mar the finish or
damage your unit’s case with an adverse chemical reaction.
DO NOT allow moisture to directly contact the thermocouple ports, or enter the instrument’s housing. Remove the instrument from its boot to ensure moisture is not trapped during cleaning.
Replacing the Battery
Replace your 9 volt alkaline battery when:
• The BAT icon appears on the right side of the LCD
• The instrument will not power on
• Use of the back-light causes the BAT icon to appear
Even if the battery was recently replaced, check its voltage level if you get no response from your instrument. Remove batteries from instruments that you do not plan to use for a month or more. DO NOT leave batteries in instruments that may be exposed to temperature extremes.
Dispose of batteries in acco r d a n ce with local land use re g u l a t i o n s
To replace the batteries:
1. Remove the thermocouples from the top of the instrument
2. Remove the rubber boot, by sliding the instrument out toward the top faceplate cut-out
3. Lay the instrument face down on a clean, flat surface
4. Remove the battery cover
• Apply inward pressure on the side of the battery cover at the recessed point, toward the slit, while lifting it out
5. Remove and replace the battery, observing indicated polarity
Calibration
When properly maintained, your DT200 will maintain an accuracy specification of up to 0.1% of the reading. To ensure your instrument is performing at its peak, send it to the UEi factory or a qualified instrument calibration facility for annual calibration.
Troubleshooting
This instrument contains no user serviceable parts beyond those listed in the troubleshooting table. In the event your instrument is physically damaged or does not function properly after taking the listed action, please return the instrument to UEi following the warranty and service instructions.
Troubleshooting Fault Table
Specifications
Operating Conditions
32 to 122˚F (0 to 50˚C) at 0 to 85% relative humidity (non-condensing)
T1-T2 Measurement, accuracy
±(0.2% T1-T2 reading + 1.7˚C) or ±(0.2% T1-T2 reading + 3.4˚F)
Ambient Coefficient
0 - 18˚C and 28 - 50˚C (Ambient temperatures) For each ˚C ambient below 18˚C or above 28˚C, add the following tolerance into the accuracy spec: 0.01% of reading +0.03˚C (0.01% of reading +0.06˚F)
If I see this
malfunction
Instrument does
not turn on
Dashes appear in
T1 and T2 data
screens
Dashes appear in
T1 and/or T2 data
screens with
thermocouples
inserted
Temperature drifts from known value
in a controlled
environment
Relative clock will not
start when RECORD
button is pressed
Dashes appear
during review of
maximum
recorded value
Data continues to
update when
HOLD or
RECORD are
invoked
Instrument turns off
during recording
I should
check for
Battery voltage
battery
installation
Thermocouples
Thermocouple
continuity
Thermocouple
connection
Thermocouple type
Moisture, corrosion
or debris on
thermocouple
Defective
thermocouple
Thermocouples
properly inserted
Open thermocouple
Proper operation
Hold/Record
is not being
fully pressed
Auto power
off defeat
Then take this corrective
action
Replace low battery
Ensure clip grips battery
posts tightly
Insert missing thermocouples
Measure resistance of
thermocouples to ensure they
are not broken internally -
Replace if required
Clean corrosion or debris
off of thermocouple - Reinsert
Ensure thermocouple type
matches the displayed icon
Clean and dry thermocouple blades - Allow thermocouple
plug to air dry
Confirm defect with known
good thermocouple -
Replace if required
Record will not start without
thermocouples inserted
Check for intermittent or
momentarily removed
thermocouple
Hold and Record affect the
Primary screen of info only
Observe HOLD or REC icons on LCD - Press button firmly
Follow procedures outlined
in operating instructions
DT200-MAN P. 3
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Power
9 Volt battery x1
Table of Specifications
DT200-MAN P. 4
Measurement Range Accuracy
K -200 to 1370˚C ±(0.1% rdg +(0.7˚C)
-328 to 2498˚F ±(0.1% rdg +(1.4˚C)
J -200 to 760˚C ±(0.1% rdg +(0.7˚C)
-328 to 1400˚C ±(0.1% rdg +(1.4˚C)
T -200 to 390˚C ±(0.1% rdg +(0.7˚C)
-328 to 730˚C ±(0.1% rdg +(1.4˚C)
Resolution
K -200 to 650˚C 0.1˚C
-640 to 1370˚C 1˚C
-328 to 999˚F 0.1˚F 1000 to 1400˚F 1˚F
J -200 to 499˚C 0.1˚C
500 to 760˚C 1˚C
-328 to 939˚F 0.1˚F 940 to 1400˚F 1˚F
T All range 0.1˚C
All range 0.1˚F
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Limited Warranty
The DT 200 is warranted to be free from defects in materials and workmanship for a period of five years from the date of purchase. If within the warra n ty period your instrument should become inoperative from such defects, the unit will be repaired or replaced at UEi’s option. This warra n ty covers normal use and does not cover damage which occurs in shipment or failure which results from alteration, tampering, accident, misuse, abuse, neglect or improper maintenance. Batteries and consequential damage resulting from failed batteries are not covered by warra n ty.
Any implied warranties, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited to the express warranty. UEi shall not be liable for loss of use of the instrument or other incidental or consequential damages, expenses, or economic loss, or for any claim or claims for such damage, expenses or
economic loss. A purchase receipt or other proof of original purchase date will be required before warra n ty repairs will be rendered. Instruments out of warra n ty will be repaired (when repairable) for a service charge. Return the unit postage paid and insured to:
1-800-547-5740 • FAX: (503) 643-6322
www.ueiautomotive.com • Email: info@ueitest.com
This warranty gives you specific legal rights. You may also have other rights which vary from state to state.
DT200
Digital Thermometer
Copyright © 2007 UEi Automotive DT200-MAN 1/07
PLEASE
RECYCLE
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