set the Model 1529 to average the measurements, the data it logs reflects
the moving average setting.
6. How many probe coefficients can I store? Thirteen. Four sets in the
main channels and nine sets in memory locations.
7. Are the readings really simultaneous in the simultaneous mode? Yes.
There are four measurement circuits that collect the raw data simulta-
neously. The raw data is then converted to its corresponding temperature
in sequence taking less than 0.5 seconds for all four channels.
8. How does the three-wire RTDsetting affect my overall accuracy? When
using the three-wire setting in the Model 1529, a partial compensation of
lead-wire resistance is performed as per normal industry practices. Since
a three-wire measurement can’t fully compensate for lead resistaance,
accuracy is reduced. As stated in the specification section of this manual,
you need to add 0.05Ωto the measurement accuracy plus the maximum
possible difference between theresistances of the lead wires.
11.4.3 Logging
1. How many data points can the Model 1529 store? You can store up to
100 demand log readings and 8,000 autolog readings.
2. What happens when the log memory is full? Logging stops once the
memory is full. Readings are not deleted to make room for new readings.
3. How can I tell when the log memory is full? Full memory is indicated in
the log stats function in the logging menu. You can also program a field
in the lower display to show theautolog memory status.
4. Can I use the Model 1529 for other applications while I am autologging?
Yes, the Model 1529 can be used while logging. However, keep in mind
that the channels that are displayed are also logged. Changing the chan-
nels affects the data that is logged.
11.4.4 Output
1. How do I get data from the Model 1529 to my PC? Data can be trans-
ferred to your PC via an RS-232 interface.
2. Can the Model 1529 be set to simultaneous measurement mode and log
to the serial port? Yes. The Model 1529 makes the measurements simul-
taneously and transmits them to the serial port. However, most printers
can’t print as fast as the data is logged so it doesn’t appear to be
simultaneous.
11.4.5 Other
1. Can I update the Model 1529 firmware without sending in my unit? Yes.
Firmware updates include a utility program that installs the upgrade via
the RS-232 port.
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11 Troubleshooting
Frequently Asked Questions