Panametrics DigitalFlow GC868, Руководство для стартапов

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Chapter 3. Operation
3-1 DigitalFlow™ GC868 Startup Guide (1 and 2-Channel)
3.1 Introduction
See Chapter 1,
Installation
, and Chapter 2,
Initial Setup
, to prepare the system for
operation. When the meter is ready to take measurements, proceed with this
chapter. The following specific topics are discussed:
• Powering Up
• Using the Display
• Taking Measurements
Note:
All inputs and outputs of the Model GC868 are calibrated at the factory, prior
to shipment. If it becomes necessary to recalibrate any of the inputs and/or
outputs, see Chapter 1,
Calibration
, of the
Service Manual
.
3.2 Powering Up
Because the Model GC868 does not have an ON/OFF switch, it will power up as soon
as the connected power source is energized.
Note:
For compliance with the European Union’s Low Voltage Directive (73/23/EEC),
this unit requires an external power disconnect device such as a switch or
circuit breaker. The disconnect device must be marked as such, clearly
visible, directly accessible, and located within 1.8 m (6 ft) of the Model
GC868.
Immediately upon power up, the Model GC868 displays the Panametrics logo and
the software version in the left pane of the display window. The Model GC868
performs a series of internal checks and display the results in the right pane of the
display window.
Note: If the Model GC868 fails any of the internal checks, try disconnecting the
power and then re-powering the unit. If the Model GC868 continues to fail
any of the internal checks, contact the factory for assistance.
After successfully performing the internal checks, the Model GC868 begins taking
measurements. The power up display is replaced by a measurement mode display
similar to that shown in Figure 3-1 below.
Note:
As a minimum, the system and pipe parameters (for each installed channel
of a 2-channel meter) must be entered before the Model GC868 can display
valid data. Refer to Chapter 2,
Initial Setup
, for specific instructions.
Figure 3-1: A Typical Measurement Display
Proceed to the next section for a description of the components of the Model GC868
display screen.
WARNING!
To ensure the safe operation of the Model GC868, it
must be installed and operated as described in this
manual. In addition, be sure to follow all applicable
local safety codes and regulations for the installation of
electrical equipment.
Velocity Volumetric m/s SCM/M
6.95 1038.7
SITE1 PIPE1 SITE1 PIPE1
VEL VOLUM -TOTL +TOTL