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Charge amplifier for multi-functional accelerometer
Discontinued Products
CH-1200

The CH-1200A is a high-performance charge amplifier for converting electric charge signals into voltage signals. Its built-in integration function optimizes the input signal to connected vibration data analysis equipment. Furthermore, multiple CH-1200A units can be connected to function as a multi-channel charge amplifier.

Features

  • Built-in integration function – allows selection of acceleration, velocity, and displacement data output.

  • Equipped with a filter function – High-pass and low-pass filters remove unwanted vibrations, enabling more precise measurements.

  • Compact and lightweight, and supports multi-channel configuration by connecting multiple units.

Specification

Maximum input charge ±100000 pc
Input connector Miniature connector
Charge capacitor 100 pF, 1000 pF, 10000 pF
Leakage resistance 10 GΩ, 1 GΩ, 100 MΩ
Frequency response characteristics
acceleration 1.0 Hz to 15 kHz ± 0.5 dB
0.2 Hz to 50 kHz ± 3 dB
speed 3.0 Hz to 3 kHz ± 0.5 dB
displacement 3.0 Hz to 500 Hz ± 1 dB
(However, 160 Hz is considered 0 dB.)
accuracy
acceleration ± 2%
speed ± 3%
displacement ± 5%
(At 160Hz, 25℃±3℃)
Rated output voltage ±10 V
Maximum output load 3 mA, 1500 pF
Output connector C02 (BNC)
Input-referred noise level 0.05 pC (rms) or less
Output offset ±5mV or less
Sensitivity 0.01–999 pC/EU
Filter HPF: through, 3 Hz, 10 Hz (-18 dB/oct)
LPF: through, 1 kHz, 10 kHz (-18 dB/oct)
(10Hz and 1kHz conform to "Vibration of rotating machinery - Requirements for vibration severity measurement" <JIS B 0907-1989>)
CAL signal (calibration) 160 Hz ± 5%, 80 Hz ± 5% 1 V 0-p ± 2.0% Sine wave (25°C ± 3°C)
Maximum input warning display function OFF: If the output exceeds ±10 V, the [-10 dB/Over] indicator will flash red. When it returns to within ±10 V, the flashing will stop.
ON: If the output exceeds ±10 V, the red light will continue to blink until the [▲/RST] switch is pressed.
Output sensitivity
acceleration 0.01, 0.0316, 0.10, 0.316, 1.00, 3.16, 10.0, 31.6, 100, 316, 1000 mV/EU
speed 0.01, 0.0316, 0.10, 0.316, 1.00, 3.16, 10.0, 31.6, 100, 316, 1000 mV/EU
displacement 0.10, 0.316, 1.00, 3.16, 10.0, 31.6, 100, 316, 1000 mV/EU
Auto power save If there is no input from any switch for more than approximately 2 minutes, only the decimal point will be displayed on the main display.
Other functions
  • Output level indicator: Green light at -10 dB full scale, red blinking when over full scale.
  • Condition Memory: Retains settings even when the power is turned off.
  • Condition Lock: Prevents accidental key operation.
Power supply voltage 10V to 15VDC (AC 100V can be used with a separately sold AC adapter)
Current consumption 120 mA or less (when 12 VDC IN displays "1.00")
Link Up to 6 units per AC adapter
Outline drawings 28 (W) × 121 (H) × 194 (D) mm (excluding protrusions)
Weight Approximately 510g
Operating environment conditions -10°C to +50°C, 90% RH or less (non-condensing)
Storage environmental conditions -10°C to +50°C, 90% RH or less (non-condensing)
Accessories Joint cables, stabilizers, connecting fittings
price  
Option
  • AC adapter PS-P20022C (PE1821078)
    Overseas power cable (domestic power cable is included with the unit)
    For North America (PE3530083)
    For Europe (PE3530085)
    For shipments to China (CCC), please contact us.