Aquametrix 2200C Conductivity Controller User Manual Manual de usuario descargar pdf (Pagina 20)

0-20 uS

0.05

0-50 uS

0.05

0-100 uS

0.05

0-200 uS

0.5

0-500 uS

0.5

0-1000 uS

0.5

0-2000 uS

1.0

0-5000 uS

1.0

Range mS

Required Cell Constant

0-10 mS

0-20 mS

0-50 mS

0-100 mS

0-500 mS

0-1000 mS

7.3.2 To change the range of your instrument to any range shown above proceed as

described below. (Note that changing the range may require a change of

conductivity cell.)

a) Enter the Utility Menu as described in 7.2.1.

b) Press CALL until the RANGE LED illuminates, which is “Range Change” in the

Utility Menu. See table in 7.2.2.

c) The display will now show the range as currently configured. Use the arrow

buttons until the display shows the desired range. Press ENTER. The display

will flash until ENTER is pressed again to confirm entry.

d) Return to the Operation Menu and press CALL until the CELL CONSTANT LED

illuminates. The display will show the cell constant required by the new range.

You can also check the new range by calling RANGE. If the required cell

constant is other than the one used with the previous range it will be necessary

to purchase a cell with the correct constant.

e) Recalibrate. Refer to Section 5.2.

f) Press RUN to return to on line or press CALL to proceed to another item in the

Utility Menu.

7.4 Temperature Output

7.4.1 The 0-5 Vdc and 0-1 mA outputs may be programmed to track the temperature of

the process. The factory outputs have a linear range corresponding to 0°C to

100°C, (or 32°F to 212°F.) Suppose you wish the output to span 10°C to 45°C.

Proceed as follows:

a) Enter the Utility Menu as described in 7.2.1.

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