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KTR Kupplungstechnik 

GmbH 

D-48407 Rheine 

NVT-E 

Operating-/Assembly Instructions 

KTR-N 
Sheet: 
Edition:

 

42611 EN 
16 of 27 

 

Please note protection 

mark ISO 16016. 

Drawn: 

11.10.12 Pz/Wy 

Replaced for: 

--- 

Verified: 

19.11.12 Pz 

Replaced by: 

 

 

4 Operation 

 

4.7 Switching Outputs 

 

4.7.1 Definition of Switching Characteristics 

 

Window function 

 

 

Window function 

make contact 

 

 

Window function  

break contact 

Function of make contact or break contact defining 
a signal window. If the measured window is 
reached, the output signal is set and deleted once 
it is left.  

Make contact 

means here that the PNP switching 

output is closed if the measured value is within the 
window limits. Otherwise the switching output is 
open.  

Break contact

 means here that the PNP switching 

output is open if the measured value is within the 
window limits. Otherwise the switching output is 
closed. 

Frequency output 

 

 

Frequency output

 

If the output is defined as a frequency output, a 
square wave signal with a frequency between  
1 Hz and 100 Hz is given proportionately to the 
measured value. 

 

A T T E N T I O N !

 

To increase the slew rate of the square 
wave signal, we recommend to load 
the switching output with a 10 k

 

resistance. 

 
 

 

A T T E N T I O N !

 

The switching function may have different descriptions:

 

 

 

Illustration 6 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for NVT-E 2S Series

Page 1: ...407 Rheine NVT E Operating Assembly Instructions KTR N Sheet Edition 42611 EN 1 of 27 1 Please note protection mark ISO 16016 Drawn 11 10 12 Pz Wy Replaced for Verified 19 11 12 Pz Replaced by NVT E O...

Page 2: ...General Hints to Danger 2 4 Proper Use 3 Assembly 3 1 Starting General 4 Operation 4 1 Switching On 4 2 LED Status Display 4 3 Key Functions 4 4 Key Lock Active 4 5 Summary of Menu 4 6 Amendment of B...

Page 3: ...per Limit 4 8 2 Assignment of Lower Limit 4 8 3 Defining the Type of Signal 4 8 4 Testing the Analogue Output 4 9 Diagnostics 4 9 1 Opening the Journal 4 9 2 Maximum Minimum Charging Level 4 9 3 Maxim...

Page 4: ...and control unit Display 4 digit 7 segment LED display Operation over 3 keys Memory Min and max value memory Current consumption with starting approx 100 mA for 100 ms Current consumption during oper...

Page 5: ...ing safety instructions All operations on and with the NVT E have to be performed taking into account safety first Please make sure to disengage the power pack before you perform your work on the NVT...

Page 6: ...The electric connection may be performed by trained technical staff only Connection The mains voltage is connected to connector S6 or M12 respectively Nominal voltage of devices is 24 V DC Please ref...

Page 7: ...s 4 3 Key Functions Operation is performed via the keys underneath the display Table 3 Key functions Key Operation mode Function Measured value display Switching the displayed units example Within the...

Page 8: ...ve digit is indicated by a dot Enter the code via the keys and and press the key to accept The active digit shifts to the right by one place Having entered the 3rd digit the main menu is opened A T T...

Page 9: ...formed first since they affect displays and settings in the different menus General settings are for example the units used and the classification of the switching outputs for measurement of charging...

Page 10: ...ing menu items are available Per cent cm Inch Litre Gallons None Please note If no unit is selected the measured values are scaled to a 4 digit display The measured values are not automatically conver...

Page 11: ...hifted from the menu charging level to the menu temperature The procedure for amending the settings does not change A T T E N T I O N With a re assignment of the switching outputs all corresponding se...

Page 12: ...The active digit shifts to the right by one place Finally accept the code by pressing the key The device returns to the submenu Please note Enter 000 to deactivate the key lock 4 6 6 Scaling of Charg...

Page 13: ...g 4 6 8 Minimum Displayed Value of Charging Level The displayed value lower limit of the measurement range for the minimum charging level is defined here Setting range 999 9999 Assignment of the maxim...

Page 14: ...itching characteristics of switching output x Unit for charging level temperature Maximum minimum charging level x Assignment of switching output x towards charging level or temperature monitoring Upd...

Page 15: ...the menu Basic settings extended functions The submenu Extended functions allows to execute further settings for each switching output affecting for example the switching behaviour of the output Testi...

Page 16: ...s left Make contact means here that the PNP switching output is closed if the measured value is within the window limits Otherwise the switching output is open Break contact means here that the PNP sw...

Page 17: ...on window was assigned to the switching output OUT 1 is displayed The value set corresponds to the upper window limit If the function frequency output was assigned to the switching output OUT 1 is dis...

Page 18: ...o enable the switching output to respond Please note If the function window was assigned to the switching output OUT x the value set corresponds to the delay for set point detecting when the measureme...

Page 19: ...n in the table below Table 7 Numbering of LED Switching output x Assignment with 2 switching outputs Assignment with 4 switching outputs 1 LED 1 yellow LED 1 yellow 2 LED 2 red LED 2 red 3 LED 3 yello...

Page 20: ...PNP switching output 4 is closed Error LED4 and LED3 on only LED4 on C Temperature dropping to 75 C PNP switching output 4 is opened OK LED3 on LED3 off D Temperature dropping to 65 C PNP switching ou...

Page 21: ...the measurement range 10 If the range selected is too small the analogue output value may have steps 4 8 2 Assignment of Lower Limit The assignment is defined as to which charging level is necessary t...

Page 22: ...n of the test please make absolutely sure to set the function to normal operation 4 9 Diagnostics The device is in a position to record the incidents for a switching output A result is defined as an i...

Page 23: ...ated in the following way Example Latest incident took place x hours ago h days ago d Incidents 2 to 5 took place x hours days ago Latest incident took place x hours days ago Delete not yet recorded o...

Page 24: ...ue of charging level reached x hours days ago delete function Key Key Key Key Key delete Menu order Max value time Min value time delete Accepting the display via the key deletes the journal and retur...

Page 25: ...he minimum and maximum charging level can be set Here the period in seconds is set during which the signal must remain continuous before the charging level is recorded Delay storing Min Max Delay MM d...

Page 26: ...ulting herefrom 6 Disposal In respect of environmental protection we would ask you to dispose of the products on termination of their service life in accordance with the effective legal regulations an...

Page 27: ...failures are saved in the device until it is switched off Breakdowns Causes Elimination no display No supply voltage 1 inspect cable and replace if necessary Error indication in the display toggles b...

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