1. Refer to
and navigate to
page 5: IO .
2. Use the [
] and [
] keys to highlight
slot 1
and press the
[
] key to confirm your choice.
NOTE:
An RTD input located in
slot 1
as
input C
is used here
as an example.
3. Use the [
] and [
] keys to highlight
1C:temp (RTD)
and
press the [
] key to confirm your selection or press the
[
] key to cancel and return to the previous screen.
4. Use the [
] and [
] keys to highlight
label
and press the
[
] key to confirm your selection. Then, enter the desired
label (i .e ., name)
for the RTD input and press the [
] key
to confirm your selection or press the [
] key to cancel
and return to the previous screen.
5. Use the [
] and [
] keys to highlight
mode
and press the
[
] key to confirm your selection. Then, select either the
off
or
temperature
option and press the [
]key twice to
confirm your selection or press the [
] key to cancel and
return to the previous screen.
NOTE:
If
temperature
was selected above, enter the desired
units
when prompted.
6. Use the [
] and [
] keys to highlight
cal
and press the
[
] key to confirm your selection. This option allows a
2-5
point calibration
of the RTD input (see the instructions
below).
7. Use the [
] and [
] keys to highlight
reset table
and
press the [
] key to confirm your selection. Then, select
either Yes or No and press the [
] key twice to confirm
your selection or press the [
] key to cancel and return
to the previous screen.
Important
- selecting
yes
will
reset all calibration entries back to zero.
Calibration instructions:
To calibrate an RTD input, make sure the input is wired per
, and use a temperature bath and
an iRTD (reference) connected to
iRTD Win software
to read
temperature values. Then, proceed as follows:
1. Enter the calibration points starting with the lowest
temperature as
set Pt1
and in increasing order up to the
highest
set Pt
.
2. Be sure the calibration points are performed over the
full temperature range to be measured. temperatures
that are out of the calibrated range (i.e., not between
the highest and lowest Cal set points) will not have
calibration information applied to them and will not
be corrected. Note that increasing the temperature
beyond the last Cal set point could cause data to be
discontinuous.
3. Be sure to initially fill any empty cells in the calibration
table with a value of zero (0).
4. Note that the
set Pt
is the actual temperature you are
trying to read, and the
offset
is the probe temperature
reading minus the
reference temperature
reading.
5. Start the calibration with the value of all points set to zero
(0), and then enter the actual values as each Cal point is
completed.
66
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