iseg NHR 20 20, Technical Documentation Manual

Page 1: ... HV generation modes 6kV 2mA 4kV 3mA and 2kV 4mA or fixed mode 2kV 6mA channel High Precision and Standard version High Precision with second current measurement range 20μA for high resolution common floating ground ultra low ripple and noise front panel control with 1 44 TFT display voltage and current control per channel programmable parameters hardware voltage and current limits USB and CAN int...

Page 2: ... GmbH Germany It is forbidden to copy extract parts duplicate for any kind of publication without a written permission of iseg Spezialelektronik GmbH This information has been prepared for assisting operation and maintenance personnel to enable efficient use The information in this manual is subject to change without notice We take no responsibility for any mistake in the document We reserve the r...

Page 3: ... instructions DANGER DANGER Danger indicates a severe injury hazard The non observance of safety instructions marked as Danger will lead to possible injury or death WARNING WARNING Warning indicates an injury hazard The non observance of safety instructions marked as Warning could lead to possible injury or death CAUTION CAUTION Advices marked as Caution describe actions to avoid possible damages ...

Page 4: ... the basis of his technical training his knowledge and experience as well as his knowledge of the relevant regulations General safety instructions Observe the valid regulations for accident prevention and environmental protection Observe the safety regulations of the country in which the product is used Observe the technical data and environmental conditions specified in the product documentation ...

Page 5: ...s specified range WARNING WARNING Before connecting or disconnecting HV cables or any operation on the HV output or the application the unit has to be switched off and discharge of residual voltage has to be finished Depending on application residual voltages can be present for long time periods WARNING WARNING Do not operate the unit in wet or damp conditions WARNING WARNING Do not operate the un...

Page 6: ...ings is possible CAUTION Caution When controlling with software the high voltage systems make sure that nobody is near the high voltage or can be injured INFORMATION INFORMATION Please check the compatibility with the devices used NHR NIM standard High Voltage Power Supply Last changed on 25 11 2019 www iseg hv com 6 31 ...

Page 7: ...de selection 19 3 6 Protection Features 19 3 6 1 Hardware Limit 19 3 6 2 Safety Loop 19 3 6 3 Single channel Inhibit 20 3 7 Floating GND configuration 21 3 8 Current limitation 21 3 8 1 Constant Current Mode 21 3 8 2 KillEnable 21 3 8 3 Delayed Trip 22 4 Options 23 4 1 VCT voltage correction by temperature 23 4 1 1 Technical data 23 4 1 2 Operation 23 4 2 Single Channel Inhibit IU ID NIU NID 24 4 ...

Page 8: ...pply 4mA up to voltages of 2kV 3mA up to 4kV and 2mA up to 6kV Alternatively the NHR can be equipped with cost efficient 2kV 6mA channels Several NHR modules can be daisy chained by CAN and controlled for example by iseg iCS system The hardware is made of best components such as 24 bit ADC and 20 bit DAC the approved front panel control of the NHR series with TFT display allows user friendly intui...

Page 9: ...ent measurement 2nd range n a 0 01 Iout 4 nA Sample rates SPS 5 10 25 50 60 100 500 2 5 10 25 50 2 60 100 500 Digital filter averages 1 16 64 2 256 512 1024 Hardware limits Potentiometer per module Vmax Imax relative to Vnom Inom Voltage ramp 1 10 6 Vmode s up to 0 2 Vmode s opt up to 0 75 Vmode s Digital interface USB interface potential free CAN interface potential free Power requirements of sup...

Page 10: ...R020020r605 VCT IU ID NHR 20 60 2 Standard 6000 V 4 mA 3 10 n a 6 kV 2mA 4kV 3mA 2kV 4mA NR020060r405 VCT IU ID NHR 40 20 4 Standard 2000 V 6 mA 3 10 n a 2 kV 6 mA NR040020r605 VCT IU ID NHR 40 60 4 Standard 6000 V 4 mA 3 10 n a 6 kV 2mA 4kV 3mA 2kV 4mA NR040060r405 VCT IU ID NHR 22 20 2 High 2000 V 6 mA 2 2 5 2 kV 6 mA NR022020r605 VCT IU ID TC L NHR 22 60 2 High 6000 V 4 mA 2 3 10 6 kV 2mA 4kV 3...

Page 11: ...recision Series Table 3 Technical data Options and order information 3 Handling 3 1 Connection The supply voltages are connected to the module via the NIM connector on the rear side of the module An USB connector and two 3 5mm audio jack connectors for the CAN interface are located on the front panel The second CAN connector can be used to daisy chain several NHR and or NHS modules NHR NIM standar...

Page 12: ... voltage at the corresponding channel LED POS and NEG indicate the selected polarity of the corresponding channel On Off switches to turn the corresponding channel on or off Hardware limit set screws Vmax and Imax to set the maximum output voltage or current relatively to the absolute maximum values of the channel Vnom Inom USB and Safety Loop connector CAN connectors Single channel Inhibit connec...

Page 13: ...f the channel list 4 and shows the corresponding channel number The background color signals the running state of each channel The background colours means the following Black the channel is switched off Green the channel is switched on Yellow the channel is switched on but no regulation CV CC is active Orange the channel is switched on but has unmasked error event s Red the channel has at least o...

Page 14: ...rrent channel and turning clockwise will mark the channel below the current channel 3 2 2 Menu Screen By pressing the left button in Main screen the display will switch to the menu screen that looks similar to the image below back to Main screen by pressing left button The menu screen shows menu entries to set up behavior and check information of the device hardware To enter a menu entry the user ...

Page 15: ... RATE Set ADC sample rate DIGITAL FILTER Set digital filter steps COMMUNICATION CAN BUS BITRATE Set CAN bus bitrate CAN BUS ADDRESS Set CAN bus ID CAN BUS STATUS Show the CAN BUS Bitrate Address Connect RX and TX Information DISPLAY POWER SAVE Set display power safe mode RESET SET VALUES Reset all set values FACTORY RESET Reset all settings to factory default HARDWARE LIMITS Shows hardware limits ...

Page 16: ...lues e g voltage ramp speed is edited a little bit different The selected value is also shown at the bottom of the display but with a digit hilighted by a cursor A short press on the rotary encoder button and the cursor will jump to the next lower digit Turning the rotary encoder changes the selected value in the resolution of the corresponding digit A submit and save of the selected value is done...

Page 17: ... encoder button to select it A screen similar to the following will be shown back to Main screen switch screen between set and measured values with left button with right button NHR NIM standard High Voltage Power Supply Last changed on 25 11 2019 www iseg hv com 17 31 selected channel with its running and regulation state constant voltage constant current set orange or measured white values of vo...

Page 18: ...l edit with left button 3 3 Channel Switches and LEDs The front panel of the NHR device is equiped for each channel with a On Off switch to turn the channel on and off two status LEDs OK and HV ON and two LEDs POS and NEG to indicate the selected polarity The green LED OK signals the general condition of the channel and the yellow LED HV ON signals measured output voltage at the corresponding chan...

Page 19: ...osition of the corresponding potentiometer Vmax The maximum output current for all channels hardware current limit is defined through the position of the corresponding potentiometer Imax The greatest possible set value for voltage and current is given by Vmax 2 and Imax 2 respectively The percental values always refer to the nominal values of the channel Vnom and Inom E g for a 6kV 4mA module the ...

Page 20: ...put HV disabled Option 3 NIU INHIBIT signal logic HIGH active HIGH HV generation stopped default state HIGH internal pull up resistor applied open INHIBIT signal input HV disabled Option 4 NID INHIBIT signal logic HIGH active HIGH HV generation stopped default state LOW internal pull down resistor applied open INHIBIT signal input HV enabled The INHIBIT signal must be applied for at least 100 ms t...

Page 21: ...he measurement range boundary the channel must stop operation in CC mode i e by switching off the channel or reducing the voltage such that it operates in Constant Voltage Mode CV 3 8 2 KillEnable The function KillEnable forces the shut down of a channel at the fastest hardware response time smaller than 1 ms if a specified trip current is exceeded If KillEnable is active the value of the set curr...

Page 22: ...t current CC are sampled every millisecond by the microprocessor Once the constant current mode is active the programmed timeout counter is decremented If the HV channel returns to constant voltage mode before timeout i e Iout Iset the counter will be reset So this process can be restarted if the current rises again To guarantee a sufficient resolution for the current set values a nominal current ...

Page 23: ...utomatically adjusted according to the formula V Vref a T Tref a VCT coefficient Example A channel is set to 60V At the time it is switched on a temperature of 25 C is measured The VCT coefficient is set to 1V K If the temperature now increases to 26 C the output voltage will increase to 61V For channels with a negative output voltage the voltage changes from 60V to 61V A VCT coefficient of 1V K w...

Page 24: ...specifies the logic of single channel INHIBIT signal see chapter 3 6 3 Single channel Inhibit for details 4 3 L Lower output current HP only The output current is limited to a lower value e g 100 µA 4 4 T10 Lower temperature coefficient HP only Improved temperature coefficient of 10ppm K NHR NIM standard High Voltage Power Supply Last changed on 25 11 2019 www iseg hv com 24 31 ...

Page 25: ...5 Dimensional drawings Figure 1 Dimensional drawings NHR 4 channels NHR NIM standard High Voltage Power Supply Last changed on 25 11 2019 www iseg hv com 25 31 ...

Page 26: ...nsional drawings NHR 2 channels Figure 3 Detail of Figure 1 2 for SL Jumper Figure 4 Detail of Figure 1 2 for CFG CG Jumper NHR NIM standard High Voltage Power Supply Last changed on 25 11 2019 www iseg hv com 26 31 ...

Page 27: ...ctor PIN Signal 10 6 V 11 6 V 28 24 V 29 24 V 34 GND Table 8 Connector and pin assignments CONNECTORS PART NUMBERS manufacturer code iseg accessory parts item code POWER SUPPLY SIDE CABLE SIDE SHV ROSENBERGER Socket Connector 57K101 006N3 Z590162 S08 RADIALL Socket R317 580 000 Connector R317 005 000 Z592474 Safety Loop LEMO Socket Connector FGG 00 302 CLAD30 CAN Connector KLS44 Tabelle 9 Connecto...

Page 28: ... length in m 1 SHV 04 HV cable shielded 30kV HTV 30S 22 2 open SHV_C04 LLL Notes 1 Length building examples 10cm 0 1 2 5m 2 5 12m 012 999m 999 Table 11 Guideline for cable ordering CONFIGURATION ORDER GUIDE item code parts NR 04 0 020 r 605 000 02 00 High Voltage Distinct Source Numbers of channels Class Vnom Polarity Inom nA Option hex HV Connector Customized Version 02 2ch 04 4ch 0 Standard 4 Hi...

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Page 30: ...nds around Vset Inom nominal output current Iout output current Iset set value of output current Imon monitor voltage of output current Imeas digital measured value of current Itrip current limit to shut down the output voltage Iin input supply current Imax limit max value of output current Ilimit Current Limit Ibounds Current bounds a tolerance tube Iset Ibounds around Iset Pnom nominal output po...

Page 31: ...ma 12 Disposal INFORMATION INFORMATION All high voltage equipment and integrated components are largely made of recyclable materials Do not dispose the device with regular residual waste Please use the recycling and disposal facilities for electrical and electronic equipment available in your country 13 Manufacturer s contact iseg Spezialelektronik GmbH Bautzner Landstr 23 01454 Radeberg OT Rossen...