Sponsler IT400, Руководство по установке и эксплуатации

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Liquid Controls
Sponsler, Inc.
IT400 Remote Totalizer & Rate Indicator Page: 8 DOC#: MN-IT400-R2c.doc
LCD Display
The LCD display has three main areas: The 8 digit totalizer,
5 digit rate indicator, and the annunciators.
•
The 8-digit totalizer shows the total number of units
of volume through put of the flowmeter since the last
time the totalizer was reset. The totalizer is
resettable by 2 methods, via a magnetic reed switch
in the lower left side of the unit and by menu. The
grand total is displayed as long as a magnet is
placed near the top of the face of the unit. The word
"GRAND" indicates the displayed value is the grand
total. Grand should be activated prior to battery
replacement to save total/grand total values to non-
volatile memory. Engineering unit annunciators
display the units and decimal place selected to compute total and grand total values. The
grand totalizer uses the same engineering unit as programmed for the totalizer.
•
The 5-digit rate display shows the rate of the flowmeter throughput. If the rate exceeds the
high flow warning setpoint, " " is displayed. “ “ is displayed when the rate is less than
the low flow warning setpoint. The warning is displayed until flowrate within these setpoints
resumes. The totalizer is not affected by this warning unless programmed to inhibit totalizer
when out of range. The range limits are established by the flow warning setpoints (Warning
menu) in the menu system. Indicators on the display also show the engineering units of
volume, time and decimal place used to compute the rate value.
Note:
When the Grand Total magnetic reed switch is activated (and
GRAND
is displayed on the
screen), the rate display will display the current rate regardless of the range limits. This is
helpful when troubleshooting flow condition problems when the low rate setpoint is set above
zero.
•
Refresh rate of the display of the unit happens at pre-determined intervals depending on the
selected power mode (see “Power”). Once the power mode is programmed (in the menu), the
refresh rate is fixed. This prevents a low refresh rate from being automatically selected which
could cause measurement delay.
•
Other display annunciators. These are warning indicators and do not inhibit the operation of
the unit (unless explicitly enabled to do so by the alarm option). These indicators may
however indicate the condition causing an inaccurate reporting of rate or total information.
o
Wrench – The service annunciator is user programmable to a specific amount of
“turbine hours” (active flowmeter hours).
o
Thermometer – The thermometer annunciator is displayed continuously any time the
temperature compensator is enabled and the process temperature is out of range.
o
Battery – The battery annunciator is composed of two segments. The segments
indicate the level of the battery charge, like an automotive gas gauge.
Two segments – The battery is within normal operating voltage range.
One segment – A replacement battery should be acquired and installed. This will
also cause high temperature range on the temperature circuit to be reduced.
8 digit
Total
5 digit
Rate