Ionics Instruments
2004
A-1
DLM 30007-08 Rev. A
APPENDIX A – 810/810AS ANALYZER OPERATING FREQUENCY
The deionized water circulating pump in the analyzer is powered directly from
the AC line supply. The speed of this pump is therefore dependent on the
frequency of the AC power supply. The flow rate of DI water through the
membrane module is determined by the speed of the pump, which, in turn
affects the calibration of the analyzer. Since the frequency of the AC power
supply can be 50 Hz or 60 Hz depending on the location, the firmware for the
810 and 810AS analyzers has been expanded to permit operation at either 50
or 60 Hz. The major difference in the software is two sets of calibration
constants, one for 50Hz and one for 60 Hz. The analyzer was calibrated at the
factory for the appropriate frequency or, in some cases, for both frequencies.
The following discussion applies to dual frequency units.
NOTE
For instrument firmware with the DataGuard feature, enter a QA-level (or
higher) password when prompted. Check with your system administrator for an
appropriate password. See the DataGuard Operation chapter for more
information regarding the DataGuard feature.
Selecting the Operating Frequency
The SETUP menu for the 810 and 810 AS analyzer contains an option (50/60
Hz) for selecting the operating frequency. To select the frequency:
1. Select SETUP from the MAIN menu.
2. Use the arrows ( or ) to scroll to 50/60 HZ and press ENTER.
CLOCK
REAGENTS
PRINTER
OUTPUTS
ENTER
CLEAR
UV LAMP
PRESETS
50/60 HZ
PASSWORD
SAMPLE MODE
Содержание TOC 800
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