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■ Cold junction sensor calibration
Scroll ↑, ↓, ←, →, 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 ↑, ↓, ←, →, 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 ↑, ↓, ←, →, keys to set above temperature value.
(4) Press ENTER key.
Chapter 12. CALIBRATION