Brainchild P41 User Manual page 97

Manual Calibration Procedures for P41 / P91 Manual Calibration Procedures for P41 / P91
Step 1. Press the page key then release for 2 times until the
appears on the display, Press the page key for least 5 seconds
then release the display will show
at least 5 seconds then release, the display will show
Step 2. Press the scroll key for at least 5 seconds then release, the display
will show
mV signal to the thermocouple input terminals. Press scroll key for
at least 5 seconds. The display will blink a moment and a new
value is obtained. Otherwise if the display didn't blink or if the
obtained value is equal to -1999 or 1999, then the calibration fails.
Step 3. Press the scroll key then release, the display will show
Send a 60 mV signal to the thermocouple input terminals in correct
polarity. Press scroll key for at least 5 seconds. The display will
blink a moment and a new value is obtained. Otherwise if the
display didn't blink or if the obtained value is equal to -1999 or
1999, then the calibration fails.
Step 4. Press the scroll key then release, the display will show
Send a 100 ohms signal with 3-wire to the RTD input terminals.
Press scroll key for at least 5 seconds. The display will blink a
moment. Otherwise if the display didn't blink, then the calibration
fails.
Step 5. Press the scroll key then release, the display will show
Change the ohm's value to 300ohms. Press scroll key for at least
5 seconds . The display will blink a moment and two values are
obtained for
blink or if any value obtained for
-1999 or 1999, then the calibration fails.
Step 6. Connect a K type thermocouple to the thermocouple input terminals.
Press the scroll key then release, the display will show
up/down key until value 0.00 is obtained. The unit under calibration is
powered in a still-air room with temperature 25 3 C. Stay at least 20
minutes for warming up. Send a 0.0 C signal to the thermocouple input
terminals. Apply up/down key until 0.00 is obtained. Press scroll key for
at least 5 seconds. The display will blink a moment and a new value is
obtained. Otherwise if the display didn't blink or if the obtained value is
equal to -5.00 or 40.00, then the calibration fails.
Step 7. Return to the static mode by pressing up and down key at a time then
release.
96
and the unit enters calibration mode. Send a 0.0
and
UM0P411D
. Press the page key for
.Otherwise if the display didn't
and
K L
L
.
.
.
.
is equal to
. Apply