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on this line on the display. It is recommended that the autozero countdown
should be at least 20 seconds. However, it need not be more than 120 seconds.
3) SPAN TIME: When carrying out a span calibration, you must introduce the
span gas for an appropriate amount of time before the analyzer executes the
span calibration. This setting, which is the same for all sensors, controls this
time interval. The time is indicated in seconds, but a minimum of 5 minutes of
span gas feeding is required for proper calibration.
4) CALIBRATION HISTORY: This displays a record of
calibrations for the analyzer. Use the UP & DOWN
keys to scroll.
a) ZERO: The time and date of the last autozero is
shown on the first line.
b) The date of the last span calibration is shown for
each sensor. The span value used is shown on the
next line, along with a sensor status message.
c) PRINT HISTORY: This will print the analyzer’s
calibration history.
C. STORAGE MENU
The ENERAC Model 500 has 400 internal storage buffers.
Each buffer stores one complete set of emissions data.
There are two ways to store emissions data to the
ENERAC’s buffer. You can either store data by selecting
the option to store every time you press the STORE key,
or alternatively you can make use of the ENERAC’s
capability of storing data automatically on a periodic basis. You can set the time
period between data storage. The STORAGE MENU shows the relevant display
lines for the storage options.
1. TIMED STORE: Selects the method for storing data. When timed store is
OFF, the ENERAC will store one set of data into the next available buffer
only when the STORE key is pressed. Any other value will turn on the
periodic store function. In this mode, pressing STORE will begin the
sequence and the unit will continuously store data. To stop the sequence,
press STORE again. The time, in minutes, between each store is set here.
This can range from 1 to 60 minutes.
**STORAGE MENU**
Timed Store:OFF
Set Next Buffer
Print Buffer
Erase Buffer
CALIBRATION HISTORY
*CALIB HISTORY*
Zero12:00 12/01
CO: 03/08/01
@500 PPM Good
NO: 12:23 03/08
@250 PPM Good
NO2:12:28 03/08
@100 PPM Good
SO2:12:35 03/08
@510 PPM Fail
Print History
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