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¬ Alarm LED
The Alarm LED provides visual indication of when the control limit has been
exceeded. The control limit can be set for a “too high” or a “too low” alarm.
See section 3.5.
- Limit Control
Adjust this control to the pH value at which the Alarm LED and (optional)
relay output are activated. See section 3.5.
® Zero Calibrate Control
Adjust this control to calibrate the miniCHEM-pH in a pH6.88 or pH7.00
buffer. See section 4.1.
¯ Span Calibrate Control
Adjust this control to calibrate the miniCHEM-pH in a buffer several pH
away from pH7 (e.g. pH4.00 or pH9.23). See section 4.1.
° Function Switch
The Function Switch is used to select the mode of operation. See section 2.
± Display Window
The miniCHEM-pH has a large, easy to read LCD display. The units of
measurement are clearly shown in the window beneath the display.
Æ Terminal Cover
The terminal cover provides easy access to all of the connections, (optional)
relay output fuse, configuration jumpers and user-adjustable trimmers. The
cover is water resistant to IP65.
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