Chapter 12. CALIBRATION
■
Cold junction sensor calibration
Scroll
↑
,
↓
,
←
, or
→
keys
to show (
2022
) on upper display, then press
ENTER key
.
●
The cold junction input 0% (CH1)
(1) Press
SETUP key
until the PROG/SEG display shows (
02-01
).
(2) Connect the millivolt source between (55)(–) and (56)(+), and then input 0.2V (See
Figure 12-10).
(3) Press
ENTER key
after display stabilizes, AD count is shown on lower display.
●
The cold junction input 100% (CH1)
(1) Press
SETUP key
until the PROG/SEG display shows (
02-02
).
(2) Connect the millivolt source between (55)(–) and (56)(+), and then input 1.0V (See
Figure 12-10).
(3) Press
ENTER key
after display stabilizes, AD count is shown on lower display.
●
The cold junction AD count data (CH1)
(1) Press
SETUP key
until the PROG/SEG display shows (
02-03
).
(2) Press
ENTER key
after display stabilizes, AD count is shown on lower display.
●
The cold junction temperature data (CH1)
(1) Press
SETUP key
until the PROG/SEG display shows (
02-04
).
(2) Connect the thermometer (55).
(3) Scroll
↑
,
↓
,
←
, or
→
keys
to set above temperature value.
(4) Press
ENTER key.
●
The cold junction input 0% (CH2)
(1) Press
SETUP key
until the PROG/SEG display shows (
02-05
).
(2) Connect the millivolt source between (58)(–) and (59)(+), and then input 0.2V (See
Figure 12-10).
(3) Press
ENTER key
after display stabilizes, AD count is shown on lower display.
●
The cold junction input 100% (CH2)
(1) Press
SETUP key
until the PROG/SEG display shows (
02-06
).
(2) Connect the millivolt source between (58)(–) and (59)(+), and then input 1.0V (See
Figure 12-10).
(3) Press
ENTER key
after display stabilizes, AD count is shown on lower display.
●
The cold junction AD count data (CH2)
(1) Press
SETUP key
until the PROG/SEG display shows (
02-07
).
(2) Press
ENTER key
after display stabilizes, AD count is shown on lower display.
●
The cold junction temperature data (CH2)
(1) Press
SETUP key
until the PROG/SEG display shows (
02-08
).
(2) Connect the thermometer (58).
(3) Scroll
↑
,
↓
,
←
, or
→
keys
to set above temperature value.
(4) Press
ENTER key.
●
Writing into EEPROM
(1) Press
SETUP key
until the PROG/SEG display shows (
02-09
).
(2) Scroll
↑
,
↓
,
←
, or
→
keys
to show (
1.1.1.1.
) on upper display.
(3) Press
ENTER key.
12-14