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ISO-STIM 01D User Manual 

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version 4.3 

 

 

page 3 

1.  Safety Regulations 

 

VERY IMPORTANT

:

 Instruments and components supplied by npi electronic are NOT 

intended for clinical use or medical purposes (e.g. for diagnosis or treatment of humans) 
or for any other life-supporting system. npi electronic disclaims any warranties for such 
purpose. Equipment supplied by npi electronic must be operated only by selected, trained 
and adequately instructed personnel. For details please consult the GENERAL TERMS 
OF DELIVERY AND CONDITIONS OF BUSINESS of npi electronic, D-71732 Tamm, 
Germany.

 

 
1)

 

GENERAL: This system is designed for use in scientific laboratories and must be operated 
by trained staff only. General safety regulations for operating electrical devices should be 
followed. 

 
2)

 

AC MAINS CONNECTION: While working with the npi systems, always adhere to the 
appropriate  safety  measures  for  handling  electronic  devices.  Before  using  any  device, 
please read manuals and instructions carefully. 
The  device  is  to  be  operated  only  at  115/230  Volt  60/50  Hz  AC.  Please  check  for 
appropriate line voltage before connecting any system to mains. 
Always  use  a  three-wire  line  cord  and  a  mains  power-plug  with  a  protection  contact 
connected to ground (protective earth).  
Before opening the cabinet, unplug the instrument. 
Unplug the instrument when replacing the fuse or changing line voltage. Replace fuse only 
with an appropriate specified type. 

 
3)

 

STATIC  ELECTRICITY:  Electronic  equipment  is  sensitive  to  static  discharges.  Some 
devices such as sensor inputs are equipped with very sensitive FET amplifiers, which can 
be damaged by electrostatic charge and must therefore be handled with care. Electrostatic 
discharge  can  be  avoided  by  touching  a  grounded  metal  surface  when  changing  or 
adjusting  sensors. 

Always  turn  power  off  when  adding  or  removing  modules, 

connecting  or  disconnecting  sensors,  headstages  or  other  components  from  the 
instrument or 19” cabinet.

 

 
4)

 

TEMPERATURE DRIFT / WARM-UP TIME: All analog electronic systems are sensitive 
to temperature changes. Therefore, all electronic instruments containing analog circuits 
should be used only in a warmed-up condition (i.e. after internal temperature has reached 
steady-state values). In most cases a warm-up period of 20-30 minutes is sufficient. 

 
5)

 

HANDLING:  Please  protect  the  device  from  moisture,  heat,  radiation  and  corrosive 
chemicals. 

 
6)

 

POWER SUPPLY:  Do 

not

 

connect

 

more than one

 ISO-STIM 01D to a single power 

supply. The power supplies are designed to work with one stimulator only. Use only the 
power supply shipped with the instrument. 

 
 
 

Summary of Contents for ISO-STIM 01D

Page 1: ...FOR THE ISO STIM 01D STIMULUS ISOLATION UNIT 100 V 10 mA bipolar output VERSION 4 3 npi 2016 npi electronic GmbH Bauhofring 16 D 71732 Tamm Germany Phone 49 0 7141 9730230 Fax 49 0 7141 9730240 suppor...

Page 2: ...nts 4 3 ISO STIM 01D Stimulus Isolation Unit 5 3 1 System Description 5 3 2 Description of the Front Panel 6 4 Operation 9 4 1 Connections Noise Reduction 9 4 2 FILTERED UNFILTERED switch rear panel 9...

Page 3: ...re connecting any system to mains Always use a three wire line cord and a mains power plug with a protection contact connected to ground protective earth Before opening the cabinet unplug the instrume...

Page 4: ...ON Observe extreme caution when working with this instrument 1 Always connect high voltage power supplies to protective earth 2 Do not touch connections unless the instrument is turned off and the cap...

Page 5: ...mplitude and polarity The ISO STIM 01D has three modes of operation In the DIRECT input mode the output signal follows exactly the input signal In the GATE TTL input mode the output signal is generate...

Page 6: ...URATION potentiometer Potentiometer that sets the duration of the stimulus multiplied with the duration range factor generated by the built in timing unit ANALOG INPUT MODE GATE TTL MODE The duration...

Page 7: ...OUTPUT MODE switch set to CURRENT The polarity of the output signal is set by switch 7 Important If the CAP COMP 15 is overcompensated in CURRENT MODE the stimulus isolator will ring and not work pro...

Page 8: ...VOLTAGE trim pot Trim pot to compensate for the VOLTAGE OFFSET of the stimulating electrode in TTL mode It is recommended to compensate the offsets only in a completely warmed up condition i e after...

Page 9: ...possible source of noise is the chassis of the stimulator In a noisy environment it may act as an antenna picking up 50 Hz or 60 Hz noise respectively especially when operating with current stimuli In...

Page 10: ...DE VOLTAGE i e an input of 1 V will lead to an output stimulus of 10 V In CURRENT OUTPUT MODE the amplitude of the output stimulus is again dependent on the setting the CURRENT RANGE switch With the C...

Page 11: ...voltage divider between the electrode resistance and the protection resistor 4 4 ISO CAB optional accessory npi provides an optional shielded cable for connection of stimulation electrodes One end is...

Page 12: ...__________________________________________________________________________________________________ ___________________________________________________________________________ version 4 3 page 12 Figur...

Page 13: ...osition CURRENT CURRENT RANGE switch set to x1 A and the amplitude of the input signal is 2 V The max signal at the isolated output plugs has to be 20 V according to the current of 200 A flowing throu...

Page 14: ...with 3 position rotary switch 100 V voltage source Time range factor x10 s x100 s x1 ms selectable with toggle switch time range up to 99 ms Amplitude potentiometer 3 digits 10 V amplified internally...

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