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II-3 Operating procedure
II-3-1 Preparation for measurement
(1) Battery charge
•
For charging to a memory unit with Lithium ion battery, turn it off and connect a USB cable to a PC
and memory unit connector. The charging state can be checked by Battery LED of the memory
unit.
(Lighting up in red is during charging, in blue is fully charged)
•
When a memory unit with AAA batteries, they can not be charged.
(2) Fix the thermocouple to the object to be measured.
[Note]
Fix the thermocouple in advance using heat-resistant tape, high temperature solder, or
thermosetting adhesive. When measuring the same board periodically, use a sample board on
which the thermocouple is fixed by high temperature solder, etc. This will permit measurement
with high reproducibility. The heat-resistant tape is simple and convenient for use, but it peels off
easily, and this can be a cause of measurement error.
(3) Insert thermocouples to K-type miniature connector of the memory unit
(4) Start up a PC and launch TMR-1 software.
(5) When you use with Bluetooth, select [PC Settings] – [Wiress communication] – [Use the Bluetooth
to communicate measurement data] from TMR-1 menu bar and check [Use the Bluetooth to
communicate measurement data], matching COM port to that of memory unit.
For more information, please refer to the TMR-1 instruction manual.
When measurement, connect thermocouples to all channels.
Short circuit unused channels with short-pins.
Be especially careful when performing the measurement with 0.05 sec. sampling time.
If there are open channels , the measured value of the next to open channels become unstable.
(ex)
1) When channel A is open, channel B is unstable.
2) When F channel is open, channel A is unstable.
3) When A, C and E channels are open, all channels are unstable.
When the sampling time is 0.1 sec, 0.2 sec, 0.5 sec, 1.0 sec, 2.0 sec, 4.0 sec and 8.0 sec,
open channels do not hardly affect next channels. However, please short circuit unused
channels just in case.
Be sure to set a watch so that TMR-1 can take in data.