GE DewPro MMY 245 Installation And Operation Manual page 16

DewPro MMY245
Note: To assist in setting a value in a cell, the cursor (flashing digit to be altered) can be moved from the
digit to digit, right to left, by pressing the V and H button simultaneously.
Cell Function
V0 H0 Displays moisture unit selected in V0 H1
V0 H1 Entering a number from 0 to 8 selects desired moisture unit displayed in V0 H0
(see table location V0 H1 on the matrix illustration). Note: Selecting 7 or 8 displays
the pressure dew point in V0 H0 as a function of the pressure value entered in V3
H1. Example: The process pressure is 100 bar and is to be measured by reducing the
gas sample to the MMY 245 to atmospheric pressure. If the pressure dew point
temperature is desired, entering 100 bar in V3 H1 the dew point for 100 bar is
calculated and displayed in V0 H0 or V4 H0 (second unit of measure) if selected
from table location V4 H1 (see matrix illustration).
If a concentration unit, i.e. 2 = ppm
pressure can be compensated for up to 10 bar. The actual sample pressure must be
entered in bar(a) in V3 H0. This pressure value covers process pressures up to 10
bar(g) that can be connected directly to the MMY 245 system (10 bar(g) maximum).
Dynamic pressure compensation can be accomplished if the optional pressure sensor
is installed (10 barg max.).
V0 H2
Displays the lowest moisture value measured since the unit was reset using
new batteries were installed, system reset performed using
measure selection is changed.
V0 H3
Displays the highest moisture value measured since the unit was reset using
new batteries were installed, system reset performed using
measure selection is changed.
V0 H4 Resets the event memories of V0 H2 and V0 H3 by pressing the + button
V0 H7
Fault status for output 1 is selected with 0 setting the output to -0.1 V, 1 setting the
output to 5.1 V and 2 holding the output to the last measured value with the
occurrence of a memory or output error.
V0 H8
Displays the raw digital value corresponding to the moisture content, and can be
verified using the calibration table supplied with the instrument. This value is equal
to the "counts"/10 as illustrated on the calibration data sheet furnished with the
instrument.
V1 H0-
Scaling the moisture output. The low moisture value is assigned to 0 V, the high
moisture value is assigned to 5 V.
9
and
V2
H0-7
V3 H0
A pressure value between 0.01 and 99.99 bar can be entered correcting concentration
units (see explanation under V0 H1).
V3 H1 A pressure value from 0.1 to 999.9 bar can be entered to calculate the process
pressure dew point (see explanation under V0 H1).
V3 H7
Enables output 1 by entering a digit other than 0, disables the output 1 by entering a
0.
V4 H0 Displays the second unit of measure that normally would be the temperature.
However, any other unit (see table location V4 H1 on the matrix illustration) can be
assigned to this matrix field choosing a number from 0 to 14 in V4 H1.
Selects the second unit of measure displayed in V4 H0 from the table in location V4
V4 H1
H1 on the matrix illustration.
GE General Eastern
Installation and Operation Manual
, 3 = lbs/MMSCF, 4 = g/m
v
3
is selected, inlet
V0 H4
V9 H9
, or unit of
V0 H4
V9 H9
, or unit of
,
,
14