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42545A Datasheet(PDF) 5 Page - Extech Instruments Corporation.

Part # 42545A
Description  High Temperature InfraRed Thermometer with Laser Pointer
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Manufacturer  EXTECH [Extech Instruments Corporation.]
Direct Link  http://www.extech.com
Logo EXTECH - Extech Instruments Corporation.

42545A Datasheet(HTML) 5 Page - Extech Instruments Corporation.

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Model 42545A V4.1 02/08
5
The MODE button options
The MODE button is used to access the programming functions of the instrument. The
selected function is displayed on the bottom line of the LCD. Each parameter is listed
below with an explanation for its use. Press the MODE button to step from one parameter
to the next.
EMS (Emissivity Value)
To change the emissivity value, use the UP and DOWN arrows (the range is 0.10
to 1.00). The current emissivity setting is always shown at the top of the LCD
display. A setting of 0.95 covers about 90% of all applications and, when in doubt,
should be set as such. Emissivity is discussed in a dedicated section of this
manual.
MAX (Maximum function)
In the MAX mode, only the highest reading encountered in the current
measurement session is displayed
MIN
(Minimum function)
In the MIN mode, only the lowest reading is displayed
DIF
(Max minus Min value)
In the DIF mode, the MAX less the MIN is displayed.
AVG (Average value)
In the AVG mode, all of the readings in the current measurement session are
averaged and the value is displayed.
HAL (High Alarm setting)
The temperature that, when exceeded, causes the audible/visual alarm to trip.
LAL (Low Alarm setting)
The temperature that, when exceeded high to low, causes the audible/visual
alarm to trip.
High and Low Alarm Feature
The Model 42545a has an alarm feature whereas a High Alarm setting and a Low Alarm
setting can be programmed by the user. When either Alarm point is reached the meter will
alert the user via an audible beep and LCD display icon. Follow the steps below:
1.
Press the MODE button until the HAL (High Alarm) parameter is displayed. Use the
UP and DOWN arrow keys to set the desired High Alarm temperature setting.
2.
Press the MODE button until the LAL (Low Alarm) parameter is displayed. Use the
UP and DOWN arrow keys to set the desired Low Alarm temperature setting.
3.
When an alarm limit is reached, the audible alarm will sound and the display icon
HIGH or LOW will appear on the LCD.
4.
Note that if the bottom switch (located in the battery compartment) is set to OFF, the
audible alarm will be disabled.


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