Panametrics DigitalFlow GC868, Руководство по обслуживанию, Страница: 27 / 64

DigitalFlow™ GC868 Service Manual (1 and 2-Channel) 2-4
Chapter 2. Error Codes and Screen Messages
2.17 E15: Equation
Limit
Problem: The steam measurement may not be within 1% accuracy.
Cause: The temperature or pressure reading is outside the accuracy
specification of the GC868 steam equations.
Action: Adjust the pressure reading to within the range of 139.9685 kPa to
2242.9435 kPa (20.8717 to 326.4482 psi), or the temperature reading to
within the range of 373.1500°K to 810.9278°K (100 to 212°F).
2.18 E16: High Signal
Problem: The meter signal strength exceeds the limits entered via the User
Program.
Cause: A signal that exceeds the programmed limits is probably caused by the
entry of an improper value in the TRANSDUCER or PIPE submenu of the
User Program.
Action: Check the values programmed into the TRANSDUCER and PIPE
submenus, as described in the Startup Guide and the Programming
Manual. Bypass or remove the preamp.
2.19 Screen
Messages
A variety of messages may appear on the display screen during the performance of
a task. Since the error codes have already been discussed in this chapter and the
locator bar messages are discussed in detail in Chapter 3,
Operation
, of the
Startup
Guide
, they will not be repeated here. All other messages are listed in Table 2-1
below.
Table 2-1: Screen Messages
Message Meaning
Power Up Messages
Backup Battery FAIL The backup battery that powers the non-volatile RAM has failed.
Contact the factory.
Backup Battery OK The backup battery that powers the non-volatile RAM has passed.
EPROM sum = XXXX Record the EPROM sum at the initial power up and periodically
thereafter.
FRIGID_INIT Executed The NVR (non-volatile RAM) was automatically initialized due to a
memory fault. Contact the factory.
NVR FAIL The non-volatile RAM has failed. Contact the factory.
NVR OK The non-volatile RAM has passed.
Measurement Mode Messages
All Logs Cleared! hit key This message may appear during one of the following tasks:
1. clearing a log - there are no more logs to clear
2. logging data - user has hit [ENT] instead of selecting an old log
or entering a new name
3. printing a log - there are no logs to print
4. displaying a log - there are no logs to display
Hit any key to resume taking measurements.
All Sites Cleared! hit key This message may appear during one of the following tasks:
1. saving a new site - a new site name was not entered or overwrite
existing site was not selected
2. recalling a site - there are no site files to recall
3. clearing a site - there are no sites to delete
4. printing a site - there are no sites to print
5. displaying a site - there are no sites to display
Hit any key to resume taking measurements.
Do you want to SAVE? This message appears upon exiting the
User Program
, if the new site
data has not been saved. Failure to save will result in loss of the new
data next time the site data is changed or recalled.