Checks and Preparation
2-9
DCB amplifier
This section describes the DCB amplifier and how to connect the input signal cables. The DCB amplifier is
used for strain measurement.
10VACrms
(30Vp-p max.)
DCB CAT II
* The shield is connected to the circuitry's reference potential, and is insulated from the GND level.
Input terminals
DC OUT
10Vp-p
max.
A
C
B
F
D
E
Signal source
AF
B
G
E
CD
A: Bridge voltage (+)
B: Input signal (–)
C: Bridge voltage (–)
D: Input signal (+)
E: Shield *
F: Not used
G: Not used
Input terminal ...................... The input terminal connector is a Tajimi PRC03-23A10-7F (receptacle). The
corresponding plug (PRC03-12A10-7M10.5) should be connected to this.
FV Amplifier
This section describes the FV amplifier and how to connect the input signal cables. The FV amplifier is used
for frequency measurement.
30VACrms
(60VDC max.)
30VACrms
(60VDC max.)
FV
CAT II
High- potential input terminal
Low-potential input terminal
High- potential input terminal
Low-potential input terminal
Signal source
Signal source
High- potential input terminal ... Terminal for connecting the high- potential input signal
Low- potential input terminal .... Terminal for connecting the low- potential input signal
Item Description
Input format Independent balanced input for each channel (NDIS strain input connector)
Measurement range Voltage: 1,000 to 20,000 x
–6
strain FS (1/2/5 steps)
Max permissible input Differential input 10 V DC (DC + ACp-p)
In-phase voltage 10 V AC rms
A/D Sampling interval: 10 µs
Resolution: 16-bit (out of which 14 are internally acknowledged)
Frequency band DC to 20 kHz (+1/–3 dB)
Item Description
Input format Independent unbalanced input for each channel (floating system) (BNC terminals)
Measurement range 200 Hz to 40 kHz FS (1/2/4/5 steps)
Max permissible input Between +/– terminals 60 V DC (DC + ACp-p)
Between floating terminals 30 V AC rms
A/D Sampling interval: 4 µs (250 kHz)
Resolution: 12-bit (out of which 10 are internally acknowledged)
Minimum pulse width 2.5 µs
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