Vibration Comparator Frequently Asked Questions

Question number FAQ-1396

About Voltage Output (THR, AC, DC)

The voltage output of the VC-2100 has three types: THR, AC, and DC, which can be output simultaneously. The THR and AC outputs can be used as analysis signals for devices such as FFT analyzers, while the DC output is utilized for recording devices.

Voltage output	Back panel terminal block	output voltage
THR	No.10： + No.11：COM	For the input signal, the gain of "THRGAIN" displayed in the COND MONI menu below is amplified and output. This gain is automatically determined by the input range and SENS sensitivity setting, and cannot be changed arbitrarily. (This is a signal output that does not pass through the bandpass.) (Example) When using a Accelerometer of 5 mV/ ^ms-2; If the menu displays ×1 and ×5, the voltage will be output at the following ratio. THR output = 5 mV/ms^-2 (for ×1) THR output = 25 mV/ms^-2 (for ×5) maximum output voltage ±5 V
AC	No.14： + No.15：COM	Select one from band A, B (or C). Output a bandwidth-limited AC signal from that band. Output the ± full scale value of the bar indicator as ±100% (= ±5V). Maximum output voltage ±5V
DC	No.12： + No.13：COM	Among the A, B (or C) bands, the displayed band converts the band-limited AC signal to an effective value and outputs DC. When integration is ON, the integrated signal is output. The value of the bar indicator from 0 to full scale (when the scale is ×1) is output as 0 to +100% (= 0 to +5V). The maximum output voltage is +5V. When the VC-0253 current output option is installed, the "DC" terminal becomes a current output. It converts 0 to 5 V to 4mA to 20 mA and outputs the current.

Voltage output

Back panel terminal block

output voltage

THR

No.10： +
No.11：COM

For the input signal, the gain of "THRGAIN" displayed in the COND MONI menu below is amplified and output. This gain is automatically determined by the input range and SENS sensitivity setting, and cannot be changed arbitrarily.
(This is a signal output that does not pass through the bandpass.)

(Example) When using a Accelerometer of 5 mV/ ^ms-2;
If the menu displays ×1 and ×5, the voltage will be output at the following ratio.

THR output = 5 mV/ms^-2 (for ×1)
THR output = 25 mV/ms^-2 (for ×5)

maximum output voltage ±5 V

No.14： +
No.15：COM

Select one from band A, B (or C). Output a bandwidth-limited AC signal from that band.
Output the ± full scale value of the bar indicator as ±100% (= ±5V). Maximum output voltage ±5V

No.12： +
No.13：COM

Among the A, B (or C) bands, the displayed band converts the band-limited AC signal to an effective value and outputs DC. When integration is ON, the integrated signal is output.
The value of the bar indicator from 0 to full scale (when the scale is ×1) is output as 0 to +100% (= 0 to +5V). The maximum output voltage is +5V.
When the VC-0253 current output option is installed, the "DC" terminal becomes a current output. It converts 0 to 5 V to 4mA to 20 mA and outputs the current.

■THR output gain check

Press the MENU key to open the CONDITION SET menu, use the ∧ and ∨ keys to align the cursor with 8: MONI (highlighted), then press the ENT key to open the COND MONI menu.

1: Please check the multiplier displayed in the THR GAIN section.

■THR, AC, DC output terminals

Last updated: July 15, 2002