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●Warning against electric shock and permissible input voltage
Do not touch, by any means, metal portions of the input section, when a high voltage input signal is being
applied, to avoid a risk of electric shock.
Also, it is very dangerous to apply an input voltage exceeding the range of permissible input voltages for
individual amplifier units, since application of such high voltages would cause equipment failures. Use the
equipment within the range of permissible input voltages listed below.
Input units Permissible input voltages
(in DC or in AC peak values) Range and setting conditions
100 V 0.1,0.2,0.5,1,2,5 V-FS
(in full scale)
2ch High-Resolution DC Amp Unit
2ch FFT Amp Unit
2ch High-Speed DC Amp Unit
2ch Vibration & RMS Amp Unit 500 V 10,20,50,100,200,500 V-FS
(in full scale)
2ch TC-DC Amp Unit
TC-DC Amp Unit 50 V
F/V converter Unit 100 V
2ch DC Strain Amp Unit 8 V
100 V 0.1,0.2,0.5,1,2 V-FS
(in full scale)
2ch Zero Suppression Amp Unit
500 V 5,10,20,50,100,200,500 V-FS
(in full scale)
●Warning against electric shock and prevention of mainframe damages
Always keep blank panels inserted/mounted at individual vacant slots for input amplifier units to prevent
electric shock and also to prevent the mainframe from potential damages due to foreign matter penetration.
●CAUTIONS for handling amplifier units
Observe the CAUTIONS described below when handling amplifier units.
Improper handling of the equipment could lead to operational errors or equipment failures.
1) The equipment shall be used only by those who completely know/understand the operating instructions
for the amplifier unit as well as the mainframe.
2) Storage environment and storage methods of amplifier units:
Amplifier units shall be stored in an environment of the temperature between -10 and 70 °C
Particularly during summer months, avoid storing them in the direct sunlight or in such places as
having a high possibility of extreme temperature rise (e.g., in an enclosed vehicle) for a long period of
time.
In other aspects, electronic devices used in amplifier units are easily affected by electrostatic
discharge.
Store amplifier units in places or envelopes processed against electrostatic charge/discharge, paying
attention to electrostatic charging phenomena.
3) When you want to change amplifier units in the mainframe, switch off the power source of the
mainframe and remove power and signal cables from the mainframe by all means, before changing
them. The mainframe and amplifier units might be damaged if you change amplifier units with electrical
source connected.
In addition, be careful not to touch internal electronic parts when changing amplifier units. This is
because you could damage the equipment if you touch electronic parts when your body is charged
with electrostatic charges. Do not touch any parts other than equipment panels when you change
amplifier units, since touching any parts other than panels could lead to equipment failures.
4) The amp units are carefully designed so that safety of users can be maintained. However, when
measuring high voltages, touching measurement subjects, probes, or output terminals without care
may result in electric shock.
WARNING
CAUTION
