WIKA DI15 - Manual (Page 15)

Operating Instructions Digital Indicator DI15
V1.3 • 02/2011 - 15 -
Display Measuring range limit Note
off Inactive
Exceeding of the measuring-frequency is tol-
erable until you reach the maximum measur-
ing range limit.
on.Er
active,
(error indicator)
The measuring range is exactly bounded by
the selected frequency-measuring-range-limit.
When exceeding or shortfalling of the limit the
device will display an error message.
on.rG
active,
(frequency range limit)
The measuring range is exactly bounded by
the selected frequency-measuring-range-limit.
When exceeding or shortfalling of the limit the
device will display the lower or upper display-
range-limit. [e.g. for humidity: when shortfal-
ling resp. exceeding the device will display 0%
resp. 100%]
Hint: When exceeding the maximum range limit (10kHz) independently from the limit setting an error message
will be displayed (“Err.1“).
- Press button 1 to validate your selection. The display shows “Li“ again.
- When pressing button 1 again, the display will show “FiLt“ (Filter = digital filter).
- Use button 2 and button 3 to select the desired filter value [in sec.].
Usable values: 0.01 ... 2.00 sec.
Explanation: this digital filter is a digital replica of a low pass filter.
- Press button 1 to validate your selection. The display shows “FiLt“ again.
Now your device is adjusted to your signal source. The only thing you left do is to adjust the outputs of the
device.
- When pressing button 1 again, the display will show “outP“. (Output)
For configuring the outputs of the DI15, please follow the instructions shown in chapter 4.8.
4.5. Measuring of rotation speed (TTL, switching-contact)
This chapter describes how to configure the device for measuring rotation speed.
This instruction requires that you selected “rPn“ as your desired input type like it is explained in chapter 4.1. The
device has to display “InP“.
- When pressing button 1 the device will display “SEnS“.
- Use button 2 or button 3 (middle resp. right button) to select the desired input signal.
Display Input-signal Notes
ttL TTL-signal
nPn Switching contact, NPN
For direct connection of a passive switching
contact (e.g. push button, relay) resp. trans-
mitter with NPN output.
A pull-up-resistor is internally connected.
Hint: when using push-buttons or relays, they must
be bounce-free!
PnP Switching contact, PNP
For direct connection of a transmitter with
PNP output.
A pull-down-resistor is internally connected.
Hint: For the connection of a frequency-transmitter, please follow the instructions given in chapter 3.3.6
When connecting a switching-contact-transmitter with increased frequency range (= with external circuitry)
you have to select TTL as your desired input signal.
- Press button 1 to validate your selected input signal. The display shows “SEnS“ again.
- When pressing button 1 again, the display will show “diu“ (divisor).