Bailey Moyes 912 Dragonfly Maintenance Manual Download

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The settings shown on the “Configuration Set” pages are as follows. The order has been altered by
grouping everything related to the auxiliary inputs at the beginning, with the remainder of the settings,
in order, following the auxiliary section.

7.1

Setting up your Auxiliary Inputs – Labels and Scaling

You may prefer to wire certain auxiliary functions to particular auxiliary inputs so that they show up
together on the labeled page. Aux 1, 2, & 3 are displayed on one labeled page, and Aux 4, 5,& 6 on
another. (Of course this data may also be displayed on a programmable page.) After determining this,
wire up the auxiliary input as shown on the sheet included with it. Then set the following entries on the
configuration set pages.

7.1.1

Aux1, Aux2, Aux3, Aux4, Aux5, Aux6

These pages allow you to define the labels to be used for auxiliary inputs. You may create any label
you wish. It may be desirable to use a label with the appropriate number of characters to fit in the
space you have defined for it on the combination page.

To change the label, press the left and center button together to enter the “edit” mode. The first
character will begin flashing. Use the left and center buttons individually to select the desired character
for this position. Use the right button to edit the next character. After editing the last character, the
instrument will leave “edit” mode. Pressing the right button when not in edit mode will take you to the
next character.

Suggestion!

Use 3 character labels for auxiliary inputs configured as integer, since the

combination screen will allocate 3 spaces on the screen for auxiliary inputs configured as
integers. (Auxiliary inputs configured as decimal numbers will be allocated 4 spaces,
making it practical to use 3 or 4 character labels.)

7.1.2

Dual TIT Option and Aux5/Aux6

Instruments that have the dual TIT option can be identified by the "T" in the second letter of the
software version, such as "6TS59…". The dual TIT option allows two type K thermocouples probes to
provide turbine inlet temperature measurements. These probes are wired to connector A, as shown on
figure 5A.

The two TIT inputs are displayed on auxiliary 5 and 6, for TIT1 and TIT2 respectively. While scaling
entries (5SF, 5Off, 6SF, and 6Off) are available, these settings are ignored. The labels for auxiliary 5
and 6 may be set as desired, and it is recommended that you set the label for Aux5 to "TIT1" and for
Aux6 to "TIT2". The TIT readings may also be displayed on the combination page by selecting Aux5
and Aux6 to display TIT1 and TIT2 respectively.

7.1.3

Auxiliary Scale Factors and Offsets (1SF, 1OFF, 2SF, 2OFF…)

These entries are used to calibrate the auxiliary input so that the value displayed on the instrument has
meaningful units and is accurate. Each auxiliary input includes a sheet that tells you the values for the
Auxiliary Scale Factor (sometimes abbreviated AuxSF) and the Auxiliary Offset (sometimes abbreviated
AuxOff). This instrument uses the labels 1SF & 1OFF for the AuxSF and AuxOff for auxiliary input 1, 2SF & 2
OFF is for auxiliary 2, and so on.

7.1.4

Configuring an Auxiliary Input for a Fluid Temperature Sensor