34
to the old units if the CANCEL key is pressed.
Note:
The last effective Ps2 units are retained through a power On/Off cycle.
Important Note:
If the Ps2 output is not being used then it is mandatory that the Ps2
output be in units of Differential inHg (Dfin) and the Ps2 target value be set to 0.000 Dfin.
This is NOT done automatically on power-On. It is the operator’s responsibility to perform
this function. Failure to do so will result in improper operation of the unit.
Important Note:
If the Ps2 output is not being used then it must be capped-off (closed).
3.2.4 MODE SELECTION
Pt Mode :
The Pt mode can be selected both in 2-output and 3-output formats. The
Pt output has three modes of operation. The three mode are Measure (M), Leak (L) and
Control (C). The power-up mode defaults to Measure (M). To change the mode press the Pt
key in the “Mode” section of the keypad. The three modes will be displayed on line 4 of the
display, with the cursor at Measure (MEAS), indicated by “MEAS” blinking. The UP
ARROW key can be used for moving the cursor right and the DOWN ARROW key can be
used to move the cursor left. The cursor wraps around the selections, that is, moving the
cursor left past “MEAS” wraps it around to “CTRL”. The sample screen below shows the
three mode choices displayed on line 4 of the display, with the cursor at “MEAS”.
2-output format
Units: knots Feet/min
Feet
Actual: M 101.2
3500
1005 M
Target:
20.0
3000
0
Pt mode : MEAS , LEAK, CTRL
Move the cursor to the desired mode and then press ENTER. The selected mode is displayed
on the screen and blinks until the GO key is pressed. The new mode will not become effective
until the GO key is pressed. The sample screen below shows the selected Pt mode as “LEAK”.
Notice that the “L” on the left in line 2 is blinking.
2-output format
Units: knots Feet/min
Feet
Actual: L 101.2
3500
1005 M
Target:
20.0
3000
0
Important Note:
When either the Pt, Ps1 or Ps2 Mode is changed to Control (C), ALL
three outputs (Pt, Ps1 and Ps2) are automatically changed to Control. During normal
Summary of Contents for 6600
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