Filter
Top Products
Teledyne Analytical Instruments
3 Installation Model 2010B
3-8 Part I
When the contact is OPEN, the analyzer is analyzing, the Remote Cal
Inputs are being polled, and a zero or span command can be sent.
When the contact is CLOSED, the analyzer is already calibrating. It
will ignore your request to calibrate, and it will not remember that request.
Once a zero or span command is sent, and acknowledged (contact
closes), release it. If the command is continued until after the zero or span is
complete, the calibration will repeat and the Cal Relay Contact (CRC) will
close again.
When the contact is closed, the display would display the last reading of
the gas concentration value and output signal would output the last reading
from the sample gas (SAMPLE and HOLD).
For example:
1) Test the CRC. When the CRC is open, Send a zero command
until the CRC closes (The CRC will close quickly.)
2) When the CRC closes, remove the zero command.
3) When CRC opens again, send a span command until the CRC
closes. (The CRC will close quickly.)
4) When the CRC closes, remove the span command.
When CRC opens again, zero and span are done, and the sample is
being analyzed.
Note: The Remote Probe connector (paragraph 3.3.9) provides
signals to operate the zero and span gas valves synchro-
nously. However, if you have the –C, -P, or -Q Internal valve
option, which includes zero and span gas inputs, the 2010B
automatically selects the zero, span and sample gas flow.
3.3.6 Range ID Relays
Four dedicated Range ID relay contacts. For any single application they
are assigned to relays in ascending order. For example: if all ranges have the
same application, then the lowest range is assigned to the Range 1 ID relay,
and the highest range is assigned to the Range 3 ID relay. Range 4 is the Cal
Range ID relay.
3.3.7 Network I/O
A serial digital input/output for local network protocol. At this printing,
this port is not yet functional. It is to be used in future versions of the instru-
ment.