NuFlo MC-II Plus Panel Mount, Руководство пользователя

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MC-II Plus WP-PM Flow Analyzer
6 May 2005
appears on the lower line of the display only during the time that the condition exists.
When any key is pressed during the error condition, the
4-20.oUt message appears
on the upper line of the display and the Err Lo message appears on the lower line of
the display. This error may be caused by the flow rate falling below the low flow rate
calibration point or the low flow rate calibration point being set too high for normal
operating conditions. Changing the low flow rate calibration point is covered in
Configuring the 4-20 mA Rate Output section of the manual.
Calibration
Calibration of the MC-II
Plus Flow Analyzer is a simple matter of entering the
necessary parameters for calibration into the instrument by way of the keypad. The
user friendly prompts and the ability of the MC-II
Plus Flow Analyzer microprocessor
circuitry to calculate the divisor for volume calculation and the rate multiplier for rate
calculation make calibrating the instrument a simple process.
The steps followed to calibrate the MC-II
Plus Flow Analyzer depend on whether
liquid or gas is being measured and the units of measure. There are four categories
of measurement:
•
Liquid Measurement Using Preprogrammed Units of Measure
•
Gas Measurement Using Preprogrammed Units of Measure
•
Liquid Measurement Using a Calculated Divisor and Rate Multiplier
•
Gas Measurement Using a Calculated Divisor and Rate Multiplier
The steps followed to calibrate the MC-II
Plus Flow Analyzer for each of these
categories are outlined in the following sections.
Liquid Measurement Using Preprogrammed Units of Measure
When the liquid volume is to be expressed in barrels (BBL), gallons (GAL) or cubic
meters (M³) and the rate is to be expressed in barrels per day (BPD), gallons per
minute (GPM) or cubic meters per day (M³/D), the MC-II
Plus Flow Analyzer
calculates the divisor and rate multiplier. The information needed to calibrate the
MC-II
Plus Flow Analyzer is the units of measure for volume, the decimal point
setting for the volume display, decimal point setting of the meter factor, the meter
factor in pulses per gallon (
PgAL ), and units of measure for the rate. An outline of
the user prompts and the steps followed for this type of calibration are below:
1. Press the ACCESS key to enter the Calibrate Mode.
2. At the prompt tot Eng , press INCR to select BBL, GAL, or M³. Press ENTER .
3. At the prompt tot d.P , press INCR to change the decimal point position for the
volume. Press ENTER .