An older critical pH alarm. Current firmware reports pH limits with the general limit alarms, 310 to 313.
| At a glance | |
|---|---|
| Code | 301 |
| Shown as | pH Critical |
| Severity | Severe |
| Category | 3xx — Process / sensor signals |
| Clears | — |
Not raised by current firmware. This code is reserved. It can still appear in an older unit’s alarm history, so the page is kept.
pH limits are now set on the probe’s Limits like any other reading, and raise Low-Low (312) or High-High (313) for critical levels.
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Use the probe’s Limits screen to set pH alarm limits.