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JULABO FW95-SL Ultra-Low Refrigerated Circulators User Manual

Page 76

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Menu functions

76

After returning the LCD display to standard display by pressing the
key

, the temperature value adjusted and set on the external

voltage or current source is displayed in line 1
(Example: Eprog 50.00

°C).

This EPROG input enables the use of different voltage and current
values as program parameters.

20

40

60

80

100

200

300

250

150

°C

1

2 3 4 5 6 7 8 9 10

V

2 4 6 8 10

14

18 20 mA

A

B


“L Value” - Setting the Low value: (See below

)

1) Adjust and set the lowest desired value on the voltage or
current source (Example A: 1 V).
Wait approximately 30 seconds.
2) Assign a lower temperature threshold value to this adjusted
voltage/current value by pressing the appropriate keys on the
keypad of the instrument (Example A: 20

°C) and set by

pressing

.

“H Value” - Setting the High value: (See below

)

1) Adjust and set the highest desired value on the voltage or
current source (Example A: 10 V).
Wait approximately 30 seconds.
2) Assign an upper temperature threshold value to this adjusted
voltage/current value by pressing the appropriate keys on the
keypad of the instrument
(Example A: 200

°C) and set by pressing

.

Example B in the diagram illustrates that the end point values
are freely selectable (e.g., 8 mA and 16 mA).

Example out of diagram A:

• Adjusting the voltage source for an output of 7.6 V!

Line 5 of the LCD DIALOG-DISPLAY shows the externally set setpoint
value. The instrument calculates this value from the slope of the two
specified end points (in example A, 7.6 V corresponds to an external
setpoint temperature of 152.0

°C ).

After returning the LCD display to standard display by pressing

, this

value is displayed in line 1
(Example: EPROG 152.00

°C).

Notice:

If this adjustment is not correctly performed at two different points, the setpoint setting
will be incorrect.

Important:
The usable temperature range between > L Value < and > H Value < is limited to the
configured working temperature range of the circulator or unit combination. For the
working temperature range, see technical specifications.