SIREC D Display Recorder 7ND4000

Operation
B. ADC Control - This menu item allows the
user to calibrate the Analog-to-Digital Converters
through the use of submenu items. If the ADC’s are
not calibrated properly, the value of the inputs may
not be correct.
3-22
CAUTION
DO NOT ATTEMPT TO CALIBRATE THE
RECORDER UNLESS YOU HAVE THE
CORRECT EQUIPMENT AVAILABLE.
REFER TO CHAPTER 6 FOR
CALIBRATION DETAILS.
1. Accessing Menu Options - To access these
menu options use the UP (_) or DOWN (¯ ) Arrow
Keys to highlight “ADC Control” in the Hidden
Menu and press ENTER. You will be provided
with two choices
• Cal ADC
• Frequency
Refer to Chapter 6 for ADC Calibration.
2. Frequency - Either 50 or 60 Hertz may be
selected as the filter rejection frequency.
DO NOT
CAUTION
CHANGE THE FILTER
REJECTION
CALIBRATION.
FREQUENCY AFTER
3. Selecting 50 Hertz Frequency - At the "Frequency"
prompt, press ENTER and the display
reads either "60 Hz" or "50 Hz". If needed, use
the UP (↑) or DOWN (↓) Arrow Keys to highlight
“50 Hz" and press ENTER. The display will return
to the "Frequency" prompt. 50 Hertz Frequency
has been invoked.
4. Selecting 60 Hertz Frequency - At the "Frequency”
prompt, press ENTER and the display
reads either "60 Hz" or "50 Hz". If needed, use
the UP (↑) or DOWN (↓) Arrow Keys to highlight
“60 Hz" and press ENTER. The display will return
to the "Frequency" prompt. 60 Hertz Frequency
has been invoked.
C. Diagnostics - The diagnostics menu allows
you to perform diagnostics checks on parts of the
recorder and media. This menu is for use by
qualified service technicians only. If additional
diagnostics are needed, please contact the factory.
1. Ram Test - This routine tests all memory
(RAM). A window will prompt “continuos test?”. If
YES is selected, the unit will continuously test the
RAM, beeping once every time the test is
passed, until the center of the screen is touched.
If NO is selected, the unit will beep once and reset.
In either test, the beep indicates that the test
passed.
2. Rom Test - This test verifies the integrity on
the system software by computing a 32-bit cyclic
redundancy code (CRC) and comparing it with a
code stored in EPROM. A window showing “Test
Passed” is displayed when the test has passed.
3. Serial Test - This test verifies the RS232 port
is working properly.
NOTE
A loop back test connector is needed to
perform this test. Follow the on screen instructions
to run the test.
4. Media Test - This test verifies the integrity of
the recordable media. A pattern will be written on
the media and then read back.
WARNING
THE MEDIA TEST IS A DESTRUCTIVE TEST.
ALL DATA WILL BE LOST.
5. Keyboard Test - This test verifies that all
touchscreen keys are working properly. The left
half of the screen will display 15 buttons with “?”
on them. Press each button to make them disappear.
Once the left side buttons are cleared
away, 15 more buttons will appear on the right
side of the display. A window showing “Test
Passed” will be displayed when all of the buttons
are cleared.
6. Display Test - This test verifies that all the
pixels on the display are working. Touch the display
anywhere to go through a block pattern
which will turn on all pixels.
7. Run Test Suite - This test runs all of the diagnostic
tests described in Paragraph 3.4.5.C, one
after another.
Siemens AG C79000-G7374-C211-01
SIREC D Manual