Yokogawa Low Concentration (ppm) Zirconia Oxygen Analyzer OX400 - Manual (Page 42)

<6. Operation and Parameters>
6-5
IM 11M10B01-01E
6.1.4 Setting Burnout Function “nAMU”
Operation: Hold down the [MODE] key for 2 seconds, select “nAMU” with the [▲], [▼] keys,
and press the [ENT] key.
Set the burnout function for the primary current output of 4-20 mA DC (compliant with NAMUR). Select
one of the options: No burnout function is “non,” burn-up is “Er.HI,” and burn-down is “Er.Lo.”
Figure 6.5 shows an example of setting burn-up.
NOTE: Burnout is a function compliant with NAMUR that allows increasing/decreasing the current
output to the high/low limits in the event of a failure. Burn-up allows increasing the output to the
high limit of 21.0 mA and burn-down allows decreasing the output to the low limit of 3.6 mA.
The burnout function works in the event of an error (when the FAIL contact output closes).
nAMU
▼↓↑▲
CAL
▼↓↑▲
▼↓↑▲
[ENT]
nAMU
PPM
nAMU
▼↓↑▲
▼↓↑▲
▼↓↑▲
[ENT]
E Er. H HI
nAMU
PPM
[ENT]
nAMU
▼↓↑▲
▼↓↑▲
ALM
▼↓↑▲
MODE
To “Er.Lo” burn-down
Burn-up is confirmed.
Return to “nAMU.”
To “non”
n noonn
E Err. HHI
E Err. LLoo
%
To “rEV”
Hold down
for 2 seconds.
%
Figure 6.5 Setting Burnout “nAMU”