Sensorex TX105 - Page 16

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OC Output >
OC SOURCE>
PH
Selects pH or temperature as the source for
the open collector output.
OC MODE>
PULSE
See 4.3.2 Open Collector Output Operation;
sets the OC mode and relative parameters.
The next two sections (5.3.4.1 and 5.3.4.2) use pH as an example, but all of the operations are
the same for temperature.
5.3.4.1 Set 4~20mA Details for PH
Menu Item
Description
Set 4mA Output>
0.00 pH
Sets the pH value for 4mA current loop output.
Set 20mA Output>
14.00 pH
Sets the pH value for 20mA current loop output.
5.3.4.2 OC Output Details for PH
Display
Description
Menu Item
Next Level Menu
MIN ALARM
MIN SETPIONT>
00.00 pH
As described in 4.3.2, sets the minimum
point for low mode. The OC output is active
when the pH value is less than the set value.
HYSTERESIS>
00.10 pH
As described in 4.3.2, sets the hysteresis
value for low mode. The OC output is
inactive when the pH value is greater than
the sum of the minimum point and the
hysteresis value.
MAX ALARM
MAX SETPIONT>
10.00 pH
As described in 4.3.2, sets the maximum
point for high mode. The OC output is active
when the pH value is greater than the set
value.
HYSTERESIS>
00.50 pH
As described in 4.3.2, sets the hysteresis
value for low mode. The OC output is
inactive when the pH value is less than the
maximum point minus the hysteresis value.
Note: the hysteresis value must be less
than the maximum point.