battery, Hart recommends that you allow the battery to discharge com-
pletely once a month. You do this by allowing the Model 1529 to operate
on battery power until it shuts down on its own.
9. If I allow the battery pack to fully discharge, what happens to the calibra-
tion parameters stored in the Model 1529? Parameters used by the Model
1529 are stored in non-volatile RAM (NVRAM). This IC stores the pa-
rameters even when power is not applied.
10. How many recharge cycles is the battery good for? Approximately 500.
11. What happens to my measurement accuracy when the battery is low?
The Model 1529 does not display temperature when there is not suffi-
cient power to make a correct measurement.
12. If I am using the autolog and the battery runs out will I lose my data?
No, you won’t lose any data. The Model 1529 simply stops logging
data. When the AC adapter is plugged in, the data logging continues.
13. How do I dispose of the batteries used in the Model 1529? Disposal
guidelines can be found by consulting your local governing authority.
14. If the AC adapter is plugged in and I have the unit turned on, is the bat-
tery still charging? Yes, the Model 1529 charges while in use without af-
fecting the charging time or its performance.
15. If I am using the Model 1529 with AC power and a power outage occurs,
will the batteries automatically take over? Yes, when AC power is re-
moved from the Model 1529 for any reason, the batteries automatically
supply back up power without risk of losing any data.
11.4.2 Input
1. Can I swap out measurement boards in the field? No, the measurement
boards were not designed to be exchanged in the field.
2. What are the implications of the fast measurement mode in terms of ac-
curacy? Accuracy is reduced when using the Model 1529 in fast mea-
surement mode. Refer to Section 8.1.1 for a better description of the fast
measurement mode and its limitations.
3. Why can I only see one channel in the fast measurement mode? Because
of the time required to make a measurement and update the display, there
is not enough time to display more than one channel when in the fast
measurement mode.
4. Do I have to reprogram the Model 1529 each time I swap out a probe?
In addition to the four main channels, there are nine memory locations
available to store probe coefficients. If the new probe’s information has
been programmed into one of these locations, you can copy it to the
channel to which it is connected.
5. How does the moving average affect the data that is logged? The data
collected by the Model 1529 is stored as it appears on the display. If you
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