High Technology, Inc.
109 Production Road,
Walpole MA 02081 USA
Document Number
OM-E-FC-360-30
Revision Level
Rev. 3
Prepared by
J.S. Bolio
Approved by
S. Titov
Effective Date
8/15/2016
Operator’s Manual: HTI BioChem FC-360
HIGH TECHNOLOGY, INC. PROPRIETARY AND CONFIDENTIAL
Page 151 of 222
12.8.5.7
Bubble Sensor Calibration
The Bubble Cal command is used to allow the module to reestablish a baseline for detecting air-liquid
interfaces.
Figure 12-58
This cycle must be carried out:
-
Monthly
12.8.5.8
Electrode replacement
This cycle is used to clear fluid from the flow path of the ISE Module and to pause the Sip Cycle.
Warning: This cycle is required before any electrode(s) is removed from the ISE Module. Failing
to run this cycle will cause the fluid in the flow path to leak when electrodes are removed.
Spilled fluid (or electrodes that are wet on the outside) can cause sporadic and/or erroneous
results. Always dry each electrode when changing electrodes.
It should be noted
that every 30 minutes, a Sip Cycle is initiated, and 100 μL of Calibrant A is dispensed.
If the electrodes are removed without initiating this maintenance Cycle (Electrode Replacement), a Sip
Cycle may occur and the 100 μL of Calibrant A will flow into the empty module. This can cause
significant damage to the ISE Module and/or other surrounding components.
Never leave the Module in this status with the reference electrode in place for more than an hour after a
Maintenance Cycle is initiated, as KCl will diffuse out of the reference electrode. Over time, the KCl will
clog the flow path. As soon as the electrodes are reinstalled, run a Calibration command.
Press Electrode Replacement command (module will be off and the lock stick will be
released)
Press the lock stick
Move up the ISE module
Depress the compression tray.
Remove or/and install electrodes in positions
Install electrodes into the ISE Module (electrode position as shown in Figure 12-51)
Move Down the ISE module to put in place
Run reconnect command
Run Start Up procedure