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DC 2000
PRO
the setpoint pressure, the measurement of the pressure loss starts automa-
tically. The position within this tolerance range and therefore the start of the
stabilisation period is marked on the display with the trend symbols
v
.
The
measurement of the pressure loss can also be initiated manually at any time
at the push of a button (1–300 min, default 10 min).
11. Setup —> TLOff
Here you can enter the calibration number given on the external temperature
sensor’s label (10000–10300, default 10179).
12. Setup —> Humidity —> Zero offset
Here you can enter the calibration value Zero offset for the humidity sen-
sor. An example zero offset of 0.833 V is given in Figure 6 under Section 3.4
(0.5–1.0 V, default 0.780 V).
13. Setup —> Humidity —> Slope
Here you can enter the calibration value Slope for the humidity sensor. An
example slope of 31.31 mV is shown in Figure 6 under Section 3.4. The value
taken from the calibration sheet must be rounded to two decimal places
(25.00–60.00 mV, default 30.00 V).
14. Setup —> Log rate
Here you can set the time between two registrations by the logger. The de-
fault is thirty seconds; in other words, the pressure, two temperatures, and
the humidity are each measured and the values written to the integrated data
memory every thirty seconds (see Section 9.2; default 30 s).
15. Setup —> AUTO OFF
This activates and deactivates the AUTO OFF function. This serves to switch
OFF the device automatically when no key has been pressed for longer than
thirty minutes (default ON).
16. Setup —> IrDA
This activates the continuous IrDA data transfer. In this case all four measured
values (pressure, 2 x temperature, relative humidity) and their corresponding
channel numbers are transferred to a PC every second during the normal
measuring process (default OFF).
17. Setup —> Fastprinter
If you enter „OFF“, you can print the dates with the Wöhler TD 23 termoprin-
ter. If you enter „On“, you can print faster with the Wöhler TD 600 termofast-
printer (default WÖHLER ON).
8. Setup Menu
