Thermo orion 410Aplus, Instruction Manual

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Benchtop pH/ISE Meter Instruction Manual
Use with Accessories 65
D. Use with Model 607 Electrode Switchbox
When the Model 607 electrode switchbox is connected to the 920Aplus
Meter, up to seven electrodes can be used. Up to seven different
calibrations will be stored in memory until the user repeats a calibration.
1. Connect the BNC cable from the BNC output of the Switchbox
to the No. 2 BNC jack on the rear of the 920Aplus Meter. Connect
the grounding cable from the switchbox to the meter ground.
NOTE: Do not connect the RS232 cable that comes with
the 607. This cable is not used in this application.
2. Plug an appropriate line converter into a standard 110V or
220V AC, 50/60 Hz wall outlet into the jack labeled power on
the Switchbox.
3. Press 2nd then options on the 920Aplus Meter to access the
options menu. Identify the use of a switchbox in the options menu.
Once the instrument and switchbox have been interfaced, pressing 2nd then
channel changes channels on the meter. The meter will step through all
channels 1 through 7 in turn. Verify the calibration of each channel per the
607 Instruction Manual. To change the channel on the switchbox press
channel selection on the front of the 607 until the channel indicator
matches the one on the meter, except for channel 1 that is not displayed on
the switchbox.
The Model 607 electrode switchbox may also be used with meter Models
520Aplus, 525Aplus, and 720Aplus. However, these instruments will not
store calibration curves in memory. Connect the switchbox to channel one
(520Aplus) or two (525Aplus and 720Aplus) then follow steps
1 and 2 above.