Thermo Orion 410Aplus, Instruction Manual

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Orion Benchtop pH/ISE Meter Instruction Manual
Overview of Meter Functions 520Aplus,525Aplus,720Aplus and 920Aplus 111
Options
Press 2nd then options (0) to change the isopotential point, clear or transfer
data from the datatlogger, select the autoshutoff feature, or identify the use
of a switchbox (920Aplus only) The menu loop is as follows:
OPTIONS MENU
CHANGE ISO PT?
TRANSFER DATA?
DATA CLEAR?
AUTOSHUTOFF ON
SWITCHBOX IN USE?
See details below on each function.
Changing the Isopotential Point
The isopotential point may be changed for pH electrodes on all meters and
ISE electrodes on the 920Aplus. For pH the default value is 7.000. For
ISE’s the default value is - - - (No ISO). Identifying an isopotential point
for an ISE electrode will provide temperature compensated concentration
measurements when using the direct measurement technique.
To change an isopotential point follow the keypress/prompt sequence
below. Always recalibrate after changing an isopotential point.
NOTE : The CHANGE ISO PT option can only be
accessed while in pH or concentration mode. If meter is
in mV or RmV mode TRANSFER DATA will be the first
option displayed.
First make sure your electrode I.D.(920Aplus) and channel selection
(920Aplus, 525Aplus, and 720Aplus) are correct.
Prompt Keypress/Action
Press 2nd then options .
1. OPTIONS MENU Press yes .
CHANGE ISO PT.?
2. ISO-ENTER VALUE Enter the isopotential point value for the
electrode then press
yes .
3. ISO EQUALS 7.000 The isopotential point is verified then the
meter proceeds to the next item in the
options menu.
4. TRANSFER DATA Press 1st then calibrate to exit and start the
calibration or 1st then measure to exit to
measure mode.