Hanna Instruments GROLINE HI981421, Instruction Manual

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31
GENERAL OPERA
TIONS
5.6.6. ALARMS
The alarm feature provides visual indication that a parameter has diverged from the preferred mea‑
surement readings.
Active alarms: when an alarm is activated, the display will flash providing a visual indication from a
distance that an alarm set‑point has been triggered. The flashing will stop after the measurement has
returned to the configured limits. In addition to the LCD flashing, the message bar will display alarm
information and the affected parameter will also blink; pH, EC (TDS) or temperature.
Table 1 below tabulates the configurable alarm parameters and the factory set defaults.
Table 1. Configurable alarm parameters
Parameter Setup options Default
pH
Enable
Disable
Disable
Alarm High 7.50 pH
Alarm Low 5.50 pH
EC/TDS
Enable
Disable
Disable
Alarm High 3.00 mS/cm (2100 ppm for 0.7 CF)
Alarm Low 1.00 mS/cm (700 ppm for 0.7 CF)
Temperature
Enable
Disable
Disable
Alarm High 35 °C (95 °F)
Alarm Low 15 °C (59 °F)