ATI
Q45P pH System
Part 4
– Configuration
22
O&M Manual
Rev-B (7/15)
4.8
Measure Menu [MEASURE]
The default menu for the system is the display-only menu MEASURE. This menu
is a display-only measurement menu, and has no changeable list items. When
left idle, the instrument will automatically return to this menu after approximately
30 minutes. While in the default menu, the UP arrow allows the user to scroll
through the secondary variables on the lower line of the display. A brief
description of the fields in the basic transmitter version is as follows:
TRANSMITTER MEAS SCREENS:
25.7°C
Temperature display. Can be displayed in °C or °F,
depending on user selection. A small “m” on the left side of
the screen indicates the transmitter has automatically
jumped to a manual 25°C setting due to a failure with the
temperature signal input.
+132 mV
Raw sensor voltage. Useful for diagnosing problems.
2.5V
Transmitter output voltage.
Slope = 100%
Sensor output response vs. ideal calibration. This value
updates after each calibration. As the sensor ages, the slope
reading will decay indicating sensor aging. Useful for
resolving sensor problems.
Offset = 0.0 mV
Sensor output current at a zero ppm input. This value
updates after a zero-calibration has been performed. Useful
for resolving sensor problems.
Q45P v2.07
Transmitter software version number.
Note: A display test (all segments ON) can be actuated by pressing and
holding the ENTER key while viewing the model/version number on
the lower line of the display.
The MEASURE screens are intended to be used as a very quick means of
looking up critical values during operation or troubleshooting.
