1-Point Calibration - JUMO 202550 Operating Instructions Manual

Select
calibration
procedure

14.3 1-point calibration

You will need
Initial condition
Calibration
Press the key repeatedly, until "C211" appears in the lower display.
PGM
Use the and
Calibration procedure
1-point calibration, process value output not frozen
1-point calibration, process value output frozen
2-point calibration, process value output not frozen
2-point calibration, process value output frozen
1
select display unit [mV] in C111!
2
select display unit [%] in C111!
Press the key (confirmation)
PGM
Press the key (return to the measurement mode).
EXIT
- a buffer solution (measurement solution) with a redox voltage which roughly
corresponds to the medium measured later.
A metal combination electrode is connected to a 2-wire transmitter for redox
voltage, that in its turn is attached to a JUMO dTRANS Az 01,
Chapter 14.1 "Redox measurement circuit", page 39.
The calibration procedure has been selected,
Chapter 14.2 "Calibration", page 39.
The operating level is unlocked,
Chapter 9.5 "Programming", page 27, (code word 0110)
The instrument is in the measurement mode,
Chapter 9.2 "Principle of operation", page 24.
Immerse the metal combination electrode in the buffer solution
Press the +
PGM
The lower display shows "Cal1" with the decimal point flashing.
Using the or
reference buffer solution.
When the redox voltage has stabilized, the calibration procedure is
complete.
Press the key.
PGM
The instrument stores the new zero.
The instrument is in the measurement mode again.
If, on completion of calibration, the instrument shows "Err" in the
temperature display,
Chapter 34.1 "Messages", page 101.
keys to set the configuration code:
(Cal) keys
keys, set the displayed value to the value of the
14 Redox indicator
X X 0 X
1
0
1
1
2
2
2
3
41