ADS Environmental Services PrimeProbe2 QR 775016 A0 - Manual (Page 29)

PrimeProbe2 User Manual
25
Scales
Unlike many conventional measurement instruments, the PrimeProbe2 has
two ranges (N.1 and N.2). Fs2 is more likely to be used with 4-20mA
outputs, but one of the outputs must be configured to indicate a change in
range.
The Scales menu includes the following parameters:
 Fs1 Represents the Full Scale value for Range N.1
 Fs2 Represents the Full Scale value for Range N.2
For normal operation, select Fs1 to be a value (depending on the pipe size
entered) equivalent to a flow velocity of 16 feet per second (5 m/s).
Note: It is very important to select the appropriate values for Fs1
and Fs2. These numbers will be the basis for future parameters
(e.g., both Flow Cutoffs and Thresholds are described as a
percentage of Full Scale)
 Tot. MU Represents the units of measure as well as the number of
decimal places in the totalizers. Change these parameters in the
same way used to change any other parameter. Position the cursor
over the appropriate parameter, press Enter, and then use the up-
arrow to change the values.
 Imp1 Represents the pulse value of channel-1, the volume of each
pulse. Complete three fields for IMP1:

Unit of Measurement

Type of Unit

Numeric Value
Use the right-arrow to position the cursor between the units of
measurement and the numerical value and then use the up-arrow to
change the units of measure.
Pressing the right-arrow for 1 second will confirm the changes to
the units of measure. Next, use the right-arrow to move to the
numerical values, and use the up-arrow to scroll through each
location 0-9. Pressing the up-arrow for more than a second will
confirm the numerical selection and move the cursor to the right.
 Imp2 Represents the pulse value for channel-2. Configure it in
the same manner as Imp2. For ADS data loggers, keep this value
the same as IMP1.
 Tpul1 Represents the duration of the pulse generated on Channel-
1. This parameter is measured in milliseconds (ms) and must be
between 16 and 9999.99 ms. Use the up-arrow and the right-arrow
to set these values. The value should be 16 ms for a PrimeLog
®
.
Note: The user must determine whether the duration of the pulse
is compatible with the external device to which it is connected.