42560 V5.0 8/08
6
The MODE button options
The MODE button is used to select from a list of available meter functions. The selected
function is displayed on the bottom line of the LCD. Each function is listed below along with
a detailed account of its use. Press the MODE button to step from one function to the next.
EMS
(Emissivity Value)
To change the emissivity value, use the UP and DOWN arrows (the available
emissivity 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.
Emissivity is discussed in a dedicated section of this User Guide.
MAX
(Maximum function)
In the MAX mode, the highest reading encountered during a single measurement
scan is displayed next to the MAX icon.
MIN
(Minimum function)
In the MIN mode, the lowest reading encountered during a single measurement scan
is displayed next to the MIN icon.
DIF
(Max minus Min value)
In the DIF mode, the MAX less the MIN is displayed next to the DIF display icon for a
single measurement scan.
AVG
(Average value)
In the AVG mode, all of the readings in a single measurement scan are averaged and
the result is displayed next to the AVG icon.
HAL
(High Alarm temperature setting)
The temperature that, when exceeded, causes the audible/visual alarm to trigger. Use
the arrow buttons to change the high alarm limit.
LAL
(Low Alarm temperature setting)
The temperature that, when exceeded high to low, causes the audible/visual alarm to
trigger. Use the arrow buttons to change the low alarm limit.
T k
(Type-K contact thermocouple sensor function) the temperature reading of the Type-
K contact probe is shown next to the ‘T k’ icon display. If the sensor is not correctly
inserted to the meter the display will show ‘
OL
‘. The supplied thermocouple is rated
for a maximum temperature of 482
o
F (250
o
C).
LOG 1 through 20
(20 reading internal datalogger)
Repeatedly press the MODE button unit the LOG icon is displayed on the LCD. Pull
the measurement trigger to take a reading and then press the SET button to store the
reading to the location represented by the number shown next to the LOG icon. Use
the arrow keys to navigate the 20 storage locations.
Over-range Indicator
If the temperature measurement exceeds the specified temperature range, the
thermometer will display
OL
(overload) in place of a temperature reading.
High and Low Alarm Feature
The Model 42560 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 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 setting.
3.
When an alarm limit is reached, the audible alarm will sound and the display icon
HIGH or LOW will appear in the lower right hand corner of the LCD.
4.
Note that if the bottom DIP switch (located in the battery compartment) is set to OFF
(left switch position), the audible alarm will be disabled.
