Xylem TFI-250 - Manual (Page 2)

TFI-250 Thermometer Operating Instructions
The thermometer is a non-contact infrared thermometer. There are many mathematical modes for the Infrared function. Please
remember to keep away from children and don’t use it for safety related applications.
(Default Screen)
FUNCTION
Press Mode key ( ○ ○ ○ ○
2 ) for scrolling more display function as follows.
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key ( ○ 2 ) , then press Lock key ( ○ 4 ) or o C/ o F key ( ○ 3 ) to set the emissivity, then press Mode
key ( ○ 2 ) to confirm it. The emissivity can be changed from 0.10 to 1.00.
Press Mode key ( ○ 2 ) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF)
and Average (AVG) modes. During the measurement, the special modes reading will be displayed
beside the mode icon.
Press Lock key ( ○ 4 )or o C/ o F key ( ○ 3 ) to change the High Alarm (HAL) or Lo Alarm (LAL), then press
Meas. key ( ○ 7 ) to confirm it. For example: When the reading 26.9 o C < LAL 27 o C, the Low icon will flash
and you will hear a beep sound.
ADD VALUE
Press Lock key ( ○
4 ) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous
monitoring of temperatures for up to 60 minutes.
In E,MAX, MIN, DIF,
AVG mode:
Press o C/ o F key ( ○ 3 ) for o C or o F transferred.
and press Lock key (○ 4 ) for backlight function ON/OFF. In all modes: First
hold on the Meas.
key (
○ ○ ○ ○ 7 ) and press o C/ o F key ( ○ 3 ) for laser function ON/OFF.
Memory Recall the last reading memory by pressing Mode key ( ○ 2 ) while power off.
CAUTION
1. WHEN DEVICE IS IN USE, DO NOT LOOK DIRECTLY INTO THE LASER BEAM–PERMANENT EYE DAMAGE MAY RESULT.
2. USE EXTREME CAUTION WHEN OPERATING THE LASER.
3. NEVER POINT THE DEVICE TOWARDS ANYONE’S EYES.
4. KEEP OUT OF REACH OF ALL CHILDREN.
STORAGE & CLEANING
It should be stored at room temperature. The sensor lens is the most delicate part of the thermometer. The lens should be kept clean at all
times, care should be taken when cleaning the lens using only a soft cloth or cotton swab with water or medical alcohol, allowing the lens
to fully dry before using the thermometer. Do not submerge any part of the thermometer.
LCD ERROR MESSAGES
The thermometer incorporates visual diagnostic messages as follows:
‘Hi’ or ’Lo’ is displayed when the temperature being measured is outside of the settings of HAL and
LAL.
「 」 「 」
‘Er2’ is displayed when the thermometer is exposed to rapid changes in the ambient temperature. ‘Er3’
is displayed when the ambient temperature exceeds 0
o C (32°F) or +50 o C (122°F). The thermometer
should be allowed plenty of time (minimum 30 minutes) to stabilize to the working/room temperature.
「 」
Error 5~9, for all other error messages it is necessary to reset the thermometer. To reset it, turn the
instrument off, remove the battery and wait for a minimum of one minute, reinsert the battery and turn
on. If the error message remains please contact the Service Department for further assistance.
「 」「 」 ‘Hi’ or ’Lo’ is displayed when the temperature being measured is outside of the measurement range.
BATTERIES
The thermometer incorporates visual low battery indication as follows:
‘Battery OK’: measurements
are possible
‘Battery Low’: battery needs to be
replaced, measurements are still possible
‘Battery Exhausted’: measurements are not
possible
When the ‘Low Battery’ icon indicates the battery is low, the battery should be replaced immediately with AAA, 1.5V batteries. Please
note: It is important to turn the instrument off before replacing the battery otherwise the thermometer may malfunction.
Dispose of used battery promptly and keep away from children.
SPECIFICATION
Measurement Range -60 to 550 o C (-76 to +1022 o F)
Operating Range 0~50°C (32~122°F)
Accuracy, (T obj =15-35°C,T amb =25°C) +/-1.5°C (2.7°F)
Accuracy (T amb =23 +/- 3°C)
T obj =0~550°C:+/-2% of reading or 2°C (4°F) whichever is greater
T obj =-60~0 o C: +/-(2°C+0.05/degree C)
Emissivity 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -76 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time 1sec
Distance:Spot 12:1
Battery Life Typ.18, min 14 hours continuous use
Dimensions 152.97Ч114.30Ч47.57mm (6.02Ч4.50Ч1.87 inch)
Weight 177 grams(6.24 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 o C (18 o F).
The thermometer will automatically shut off if left idle for more than 15 sec.
EMC/RFI: Readings may be affected if the unit is operated within radio frequency electromagnetic field strength of
approximately 3 volts per meter, but the performance of the instrument will not be permanently affected.
1. Simply aim the thermometer at the measure target with Lens (
○ ○ ○ ○ 9 ) and press Meas. key ( ○ ○ ○ ○ 7 )
to display the surface temperature.
2. During the measurement, the MAX reading will be displayed beside the icon.
3. The Distance:Spot is 12:1. Please make sure the target area is within the field of view.
ebro Electronic GmbH
Peringerstrasse 10
85055 Ingolstadt, Germany - www.ebro.com