Fluke THE HART 1529 - Manual (Page 26)

6 General Operation
This section explains basic operation of the 1529 thermometer readout. De-
tailed operation of the 1529 is explained in Sections 7 and 8. Section 7 explains
the menu structure and the functions available in the menu structure and Sec-
tion 8 explains the communications interface for operating the 1529 remotely.
6.1 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 fields and field display sets. Infor-
mation 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 pro-
grammable fields and field display set information are not displayed.
6.2 Changing Units
The 1529 thermometer readout is capable of displaying temperature in Celsius
(C), Fahrenheit (F), or Kelvin (K). (Displaying in units of
Ω, KΩ, or mV is also
available through the PROBE menu and is channel specific.) 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 fields that are
displaying temperature on the upper or lower display are updated to the new
units.
Channels that are set to
Ω, KΩ, or mV in the PROBE menu are left unchanged
when temperature units are modified. Changing the units resets the statistical
calculations (displayed in the bottom portion of the display).
6.3 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 re-
charged. The battery discharges more quickly when the display backlight is
used. The percent of battery charge remaining is displayed on the bottom por-
tion of the display when the battery power is being used. The battery percent-
age 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 instru-
ment is switched on. The power control circuit inside the instrument manages
battery charging and stops charging the battery automatically when the battery
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6 General Operation
Display