WIKA DI15 - Manual (Page 16)

Operating Instructions Digital Indicator DI15
V1.3 • 02/2011 - 16 -
- Use button 2 and 3 to select your desired divisor.
Set the divisor to the pulses per rotation the transmitter supplies.
- Press button 1 to validate your selection. The display shows “diu“ again.
- When pressing button 1 again, the display will show “dP“ (decimal point).
- Use button 2 and button 3 to select the desired decimal point position.
Use the decimal point position to change the resolution of your measurement. The more the decimal
point position is on the left, the finer the resolution will become. Please note that you lower the maximum
value
that can be displayed, too.
Example: your engine runs with 50 rotations per minute.
With no decimal point the device will display something like 49 – 50 – 51, the maximum value that can
be displayed is 9999 rotations per minute.
With the decimal point position on the left e.g. XX.XX the device will display something like 49.99 –
50.00 – 50.01, but the maximum value that can be displayed is 99.99 rotations per minute.
- Press button 1 to validate your selection. The display shows “dP“ again.
Now your device is adjusted to your signal source. The only thing left to 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.
4.6. Up-/Downwards counter (TTL, switching-contact)
The upwards counter starts counting up from 0, according to adjusted limit.
The downwards counter starts counting downwards from the upper value that was been selected.
Feature: The current value of the counter can be reset anytime by connecting pin 8 to GND (e.g. pin 7).
The counter starts from its beginning as you disconnect pin 8 and pin 7.
The current counter value won‘t be lost if the voltage supply is disconnected. After restarting, the
counter starts from this value.
This chapter describes how to configure the device as a counter.
This instruction requires that you selected “Co.up“ or “Co.dn“ as your desired input type like it is explained in
chapter 4.1.The device has to display “InP“.
- When pressing button 1 the display will show “SEnS“.
- Use button 2 or button 3 (middle resp. right button) to select the desired input signal.
Display Input-signal Note
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 connecting a frequency-transmitter, please follow the instructions given in chapter 3.3.7
When connecting a switching-contact-transmitter with increased frequency range (= with external circuit)
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 device will be displaying “EdGE“ (signal edge).