Biomark IS1001 Operation User's Manual page 18

Installing and Configuring IS1001 Reader
For information on establishing a connection, see page 19.
3. By default, an IS1001 reader is configured to operate in IS1001 Standalone network mode
(as standalone reader). But if prior to this installation it was connected to a Master Controller
as part of an MTS system, the network mode setting has been changed to MTS Node. In such
case, you need to switch the IS1001 from MTS Node to IS1001 Standalone network operation
mode by using the RNMS command (see page 28).
You should see the echo of all characters in the Data Traffic window as you type. Press Enter
and verify the reader's network mode has been changed to "Standalone" from the confirmation
message.
4. Tune the antenna by entering the Antenna Full Tune (AFT) command.
The Antenna Full Tune process will take approximately 40 seconds to complete. During this
process the IS1001 reader will go through every possible electronically switched capacitor
setting combination. There are total of 1024 setting combinations (0 to 1023) providing a
tuning capacitance range from 15nF to 124.25nF with +/-5% tolerance. The capacitance
change step (resolution) is 220pF (+/-5%).
•
Setting "0" means all capacitors are switched off and the tuning capacitance value is
at a minimum – 15.0nF (+/-5%).
•
Setting "1023" means all capacitors are switched in and the tuning capacitance value
is at a maximum – 124.25nF (+/-5%).
Note: These values may vary due to components' tolerances and should be used for
reference purposes only. These values do not account for capacitance of components from
other circuitries or antenna cable and parasitic capacitance that have an effect on antenna
tuning.
The IS1001 reader will report the results of the entire tuning process and, if successful, will
switch into Scan mode. The reader will select the capacitors setting that produced the highest
antenna current as the initial tuning capacitance setting that will be used as the origination
setting every time the reader is powered up or reset. At the same time, the antenna signal
phase measurement is taken and saved as the Dynamic Tuning Target Phase value. This
value will be used by the Dynamic Tuning feature (if enabled) to track any changes to the
environment (such as water depth, ambient temperature, foreign objects presence,
components deterioration, etc.) that may result in antenna de-tuning, and to adjust the
capacitors setting accordingly to keep the antenna tuned. Dynamic Tuning Phase Deviation
Threshold value will also be determined and set based on the maximum phase value change
as a result of tuning capacitance smallest step change around the highest antenna current
point.
Note: It is recommended to adjust tuning capacitance at the antenna, so that highest antenna
current is achieved with IS1001 reader tuning capacitance settings that are NOT close to 256,
512, 768, when the two largest value capacitors are switched in, and all smaller value
capacitors are switched out, resulting in rapid tuning capacitance reduction (due to +/-5%
tolerance of the utilized capacitors).
If the antenna is out of tuning range:
•
The IS1001 reader will switch itself to Standby mode and display a message
suggesting if the antenna tuning capacitance needs to be increased or decreased. No
changes will be made to the existing antenna tuning parameters.
•
The tuning capacitance needs to be increased or decreased at the antenna to bring it
within the tuning range of the IS1001 reader.
14 IS1001 Reader User Manual