F
3-
-0
8T
H
M
--n
8C
h.
T
he
rm
oc
ou
pl
e
In
.
9--4
F3--08THM--n 8-Channel Thermocouple Input
Setting the Module Jumpers
The module is set at the factory for
_
C thermocouple readings. If this is acceptable
you do not have to change any of the jumpers. The following diagram shows how the
jumpers are set.
WARNING: DO NOT change the calibration jumper settings. If you think this
jumper has been changed, make sure it is NOT in the CAL position. All
calibration is performed at the factory. Any changes to this may affect the
module accuracy which could result in the risk of personal injury and/or
equipment damage.
There is a jumper located on the bottom
of the board that selects between
_
C and
_
F temperature measurements. This
jumper (labeled
_
F) should be removed if
you require
_
C measurements.
Remove this jumper
for
_
C operation.
_
F CNTS
Measurement
Selection
There is a jumper located on the bottom
of the board that allows you to disable the
direct temperature conversion feature. If
you install a jumper on the CNTS pin, the
temperature will be represented by a
digital value between 0 and 4095. For
example, an E type thermocouple would
have a value of 0 for --450
_
F and a value
of 4095 for 1832
_
F.
NOTE:
If you are using the --1 (50mV) or
the --2 (100mV) millivolt input versions,
you should make sure this jumper is
installed.
Install this jumper to obtain
digital values (0 -- 4095).
_
F CNTS
Measurement
Selection
Jumper Locations
Selecting
_
F or
_
C
Operation
Selecting 0--4095
Operation
