SIREC D Display Recorder 7ND4000
SIREC D Display Recorder 7ND4000
SIREC D Display Recorder 7ND4000
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D. Hidden Menu - This menu item may be<br />
passcode protected and can only be accessed by<br />
pressing a certain combination of buttons. The<br />
hidden menu allows the user to Initialize the recorder,<br />
perform ADC Control and perform Diagnostics<br />
on the recorder. Refer to Chapter 4.<br />
1.2.5 Memory. All the Random Access<br />
Memory in the <strong>Recorder</strong> is battery backed. This<br />
enables the unit to recover in the event of a mains<br />
failure with minor data loss. Any programming will<br />
be protected in the event of power removal and<br />
past browse data is maintained in the off state. The<br />
battery is the rechargeable type (Nicad. Nonrechargeable<br />
lithium available as a special option)<br />
and will keep memory intact for at least 12 months.<br />
1.2.6 Clock. A real time clock keeps time and<br />
date in the event of a power loss. It operates off the<br />
same battery as the memory.<br />
1.2.7 <strong>Recorder</strong> Construction. The<br />
<strong>Display</strong> <strong>Recorder</strong> features modular construction.<br />
Most options are field installable (Alarms, Communication,<br />
Loop Power Supply, Channel expansion)<br />
with little effort. Power Supply and Analog conditioning<br />
modules are conveniently accessible for<br />
fast and simple troubleshooting and/or removal. All<br />
operating controls and indicators are located on the<br />
touch screen panel and the Disk Drive or PCMCIA<br />
slot is located conveniently behind a protective<br />
panel on the front of the unit.<br />
1.3 RECORDING OPTIONS<br />
1.3.1 General. The user can order the <strong>Recorder</strong><br />
with one of two storage mediums, a standard<br />
PC compatible floppy disk drive or an industry-standard<br />
PCMCIA memory card drive.<br />
1.3.2 Floppy Disk Drive. The disks can store<br />
1.44 Megabytes of data which translates to approximately<br />
700,000 data samples (each sample is<br />
16 bits). The disks are magnetic media and the<br />
drives are mechanical.<br />
This limits their use in harsh environments where<br />
vibration or temperature is a problem.<br />
Siemens AG C79000-G7374-C211-01<br />
<strong>SIREC</strong> D Manual<br />
General Description<br />
1.3.3 PCMCIA Memory Card. The<br />
PCMCIA card (Personal Computer Memory Card<br />
Interface Association) is a small solid state card<br />
about the size of a credit card and about 0.125 inch<br />
(3mm) thick containing either battery backed up<br />
Static RAM or the newer Flash memory. The Flash<br />
memory cards are significantly less expensive than<br />
the battery backed RAM cards and are available in<br />
larger capacities. The memory cards are more<br />
expensive than floppy disks, but are not prone to<br />
the same vibration or temperature constraints. Both<br />
memory card types up to 20 Megabytes in size (up<br />
to 220 Mbyte with firmware release 2.5 or higher)<br />
are supported which is approximately 10,000,000<br />
data samples. The cards do require a special drive<br />
in the PC.<br />
NOTE<br />
The following is a recommendation of<br />
tested ATA Flash cards:<br />
Brand Size<br />
Sandisk 4 – 20 Mbyte<br />
1.4 SUPPLIED EQUIPMENT<br />
1.4.1 Equipment Listing. The following<br />
items are supplied with your <strong>SIREC</strong> D <strong>Display</strong> <strong>Recorder</strong>:<br />
1 - Floppy Disk or PCMCIA Card (depending upon<br />
options chosen)<br />
1 - User Manual<br />
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