1. Purpose: To describe the mechanical installation for the flow switch, firmware 2.12 CBI
upgrade installation and operation of the flow switch.
2. Scope: This procedure describes the activities required to install the flow switch and
firmware 2.12 CBI in all Model 800 series TOC analyzers. For TURBO analyzers,
this procedure describes the installation and configuration of the flow switch.
Turbo Analyzers will omit the firmware installation section.
3. Materials and Tools:
7/16" open end or adjustable wrench
1/2" open end wrench
Flat head screwdriver
Phillips head screwdriver
Scriber
Teflon® tape
WARNINGS:
• A 60-micron filter must be used to ensure proper operation of the flow switch.
• Do not over tighten any fitting.
• Switch orientation should be no more than 15° from vertical alignment.
• Do not install units near ferrous metals, magnets or electromagnetic fields.
• Please review the enclosed Operation and Maintenance Manual. There have
been features added to the analyzers. These additions are dependent upon
the firmware version and software version currently in use.
Refer to Figures One or Two for this procedure. Reference will depend on orientation
of tubing from regulator.)
4.1. Remove the outlet PFA tube connector from the pressure regulator of the analyzer.
4.2. Detach the regulator from the analyzer by removing the two screws on the bottom of
the mounting bracket making sure not to lose the fiber spacers.
4.3. Remove the elbow from the outlet side of the regulator and clean the port and
connector threads of any Teflon® tape remains. Reapply 4 wraps of Teflon tape to
the elbow and screw the fitting back into the regulator ending with the tube fitting
pointing down as shown.
4.4. Reinstall the regulator to the analyzer with the two screws making sure to use the
fiber spacers.
4.5. Remove the PFA tube from the inlet of the sampling block.
4.6. Position the flow switch and secure the end of the stainless steel U-tube to the
regulator outlet. Wires must point up to have a calibrated normally open switch.
4.7. Secure the PFA tube from the outlet of the switch to the inlet of the sampling block.
4.8. Connect the wires from the flow switch to the Binary Input Module, polarity not
important to the binary module.
4.9. Route the electrical cable as desired and plug the end into the AUX PORT on the
opposite side of the instrument.
4.10. If installing the switch on a TURBO analyzer, proceed to 6, if not proceed to 5.
FIGURE TWO:Installed Flow Switch on the Model 800 TOC Analyzer
5. Firmware installation
5.1. Print the current constants.
Any IBM compatible dot matrix printer with a parallel printer cable equipped with
a 25pin connection may be used. It is very advantageous to have a printout of the
constant values.
If a printer is not available, go to Step 5.2.
5.1.1. From the RUN-TIME Menu, press STOP TOC.
5.1.2. The MAIN Menu will be displayed select SETUP, press Enter.
5.1.3. Select PRINTER, press Enter.
5.1.4. Select PRINT CONSTANTS, press Enter.
5.2. If a printer is not available, access the FACTORY ACCESS Menu to scroll through and
record constant values on the Constants Record Form within this procedure.
Constant values for C1THERM A, C2THERM A, C1THERM B, AND C2THERM B will be
rounded values. The displayed constant value will differ from the printed constant
value. This should not impact the analyzer’s performance. Contact GE Analytical
Instruments for the last printed Constant Value list, if desired.
5.2.1. From the MAIN menu select CALIBRATE, press Enter.
5.2.9. Select each consumable, press Enter. Write the information on
the Printout or the Constants Record Form. Record date and
percent left for the OXIDIZER. Record the percent left for the
LAMP, PUMP TUBING and ACID.
5.2.10. REAGENT FLUSH is not a consumable to record.
5.2.11. Print or record Errors and Warnings if desired.
5.2.12. Data on the Ram Card will not be erased or affected in any way
upon performing this procedure.
5.3. Replace the EPROM chip (IC chip).
CAUTION:
Prior to performing the following instructions it is essential, to be grounded
according to established procedures. Failure to be properly grounded will
result in damage to the EPROM Chip and void the warranty.
5.3.1. Turn off the analyzer power and disconnect the power cord.
5.3.2. Lift the analyzer cover and locate the PC electronics board, refer to
Figure Six.
5.3.3. Depending on the type of chip holder in the analyzer, different
techniques are required to replace the existing EPROM with the EPROM
labeled 2.12CBI. Facing the analyzer’s front panel, locate the EPROM
socket on the left side of the PC electronics board near the rear of the
analyzer. If the chip socket has a metal lever at the top, it is a Zero Insertion Force Socket (Step 5.3.4). If the chip socket does not have a
lever, it is a Low Profile Socket (step 5.3.5). Figure Six illustrates the low
profile socket. Use the appropriate instruction to replace the chip.