YOKOGAWA OX100 - Operation: Alarms and Output Configuration; Alarm Setting and Functionality; 4-20 mA Output Signal Setup

<3. Operation>
3-3
IM 11M10A01-01E
3.2 AlarmSetting
CAUTION
• Pressthe[MODE]keyonetime,andconrmthatthe“SET”lampislit.
• To set 300 ppm O
2
, for example, operate the [^] [v ] keys so as to display 300 (ppm). Next
press the [ ENT ] key to set this value, and the instrument enters measurement mode. If you
press the [ MODE ] key by mistake, then the instrument enters calibration mode. Entering 0
(ppm) releases Alarm Setting.
3.3 AlarmsandAlarmOutput
If the O
2
concentration reaches the High/Low Alarm setting entered in Section 3.2 above, the
“ALM” lamp lights, and the alarm output contact between terminals 11, 12 turns ON.
3.4 Setting4to20mADCOutput
When the 4-20 mA lamp is lit, this indicates that range is 0 to 1000 ppm O
2
and output is
provided as a 4-20 mA DC output signal corresponding to 0-1000 ppm. Press the [^] and [v] keys
simultaneously to toggle 4-20 mA lamp ON and OFF. When the lamp is OFF, the 4-20 mA DC
output signal corresponds to 0.1% to 25% O
2
.
4th Edition : Oct. 23, 2019-00