Strain/Voltage/Acceleration Measurement Card CVM-41A

The cards are for measuring strain, voltage, acceleration, and temperature. CAN data is supported. Isolated amplifier cards and carrier-wave amplifier cards also available for countermeasure against noise.

Specifications

Applicable Recorders	EDX-100A EDX-200A EDX-5000A
Channels	8
Measuring Targets	[Strain measurement] Strain gages, strain-gage transducers * For strain measurement, use bridge boxes [Voltage measurement] Voltage Voltage-output sensors [Acceleration measurement (Piezoelectric)] Piezoelectric accelerometers (Built-in amplifier)
Input Modes	[Strain measurement] Balanced differential input [Voltage measurement] Balanced differential input *When using the Conversion Adapter FV-1A, this becomes unbalanced input *Common mode input voltage range ±20 VDC, absolute input voltage range ±50 V [Acceleration measurement (Piezoelectric)] Unbalanced input *Conversion Adapter FV-1A usage possible
Input Impedance	[Strain Measurement] － [Voltage measurement] 1 MΩ + 1 MΩ Within ±10% *When using Conversion Adapter FV-1A (At unbalanced input), within 1 MΩ ±10% [Acceleration measurement (Piezoelectric)] ー
Bridge Excitation or Power Supply to Sensors	[Strain measurement] Const. voltage output BV2V: 2 VDC BV5V: 5 VDC BV10V: 10 VDC [Voltage measurement] Const. voltage output BV2V: 2 VDC (±1 V) BV5V: 5 VDC (±2.5 V) BV10V: 10 VDC (±5 V) or OFF 20 mA/channels or less [Acceleration measurement (Piezoelectric)] Const. current output (Approx. 4 mA) (Excitation voltage: Approx. 23 VDC, Load: 1 kΩ or less) *Each channel settable. The max. channels of CVM-41A in EDX-100A is 3 times of units of CVM
Gage Factor	[Strain measurement] 2.00 fixed [Voltage measurement] － [Acceleration measurement (Piezoelectric)] －
Compatible Bridge Resistance	[Strain measurement] BV2V: 120 to 1000 Ω BV5V: 350 to 1000 Ω BV10V: 500 to 1000 Ω [Voltage measurement] － [Acceleration measurement (Piezoelectric)] －
Balance Operation Settings(Zero suppression)	[Strain measurement] -------Autobalance enabled Cancel the unbalanced bridge portion in the analog circuit, and zero the measurement value. -------Autobalance disabled Do not cancel the unbalanced bridge portion (The initial unbalanced value in the bridge circuit can be confirmed) [Voltage measurement] -------Zero suppression enabled Cancel the input voltage in the analog circuit, and zero the measurement value -------Zero suppression disabled Do not cancel the input voltage in the analog circuit (Display the input voltage as is) [Acceleration measurement (Piezoelectric)] －
Balance Adjustment Range	[Strain measurement] BV2V: Resistance ±10% (±50k ×10-6 strain) BV5V: Resistance ±4% (±20k ×10-6 strain) BV10V: Resistance ±2% (±10k ×10-6 strain) [Voltage measurement] ±5 V [Acceleration measurement (Piezoelectric)] －
Measuring Range	[Strain measurement] BV2V: 5 k, 10 k, 20 k, 50 k, 100 k, 200 k, 500 k ×10-6 strain BV5V: 5 k, 10 k, 20 k, 50 k, 100 k, 200 k ×10-6 strain BV10V: 2 k, 5 k, 10 k, 20 k, 50 k, 100 k ×10-6 strain [Voltage measurement] 1, 2, 5, 10, 20, and 50 V [Acceleration measurement (Piezoelectric)] 100, 200, 500, 1000, 2000, and 5000 mV
Range Accuracy	[Strain measurement] Within ±0.2%FS [Voltage measurement] Within ±0.2%FS [Acceleration measurement (Piezoelectric)] Within ±1.0%FS
Nonlinearity	[Strain measurement] Within ±0.1%FS [Voltage measurement] Within ±0.1%FS [Acceleration measurement (Piezoelectric)] Within ±0.2%FS
Calibration (CAL)SHUNT CAL	[Strain measurement] ±100% and ±50% of each range and SHUNT *When SHUNT CAL has 350 Ω load connected, approx. 257 ×10-6 strain output. [Voltage measurement] ±100% and ±50% of each range [Acceleration measurement (Piezoelectric)] ±100% and ±50% of each range
Frequency Response	[Strain measurement] DC coupling: DC to 5 kHz, deviation +1dB, -3dB AC coupling: 0.2, 1 Hz to 5 kHz (See the HPF.) [Voltage measurement] DC coupling: DC to 5 kHz, deviation +1dB, -3dB AC coupling: 0.2, 1 Hz to 5 kHz (See the HPF.) [Acceleration measurement (Piezoelectric)] 0.5 Hz to 5 kHz, deviation +1dB, -3dB
LPF	Transfer characteristics : 5 Butterworth type Cutoff frequencies : 30, 100, 300, 1 k, 3 k Hz, FLAT and AUTO *With AUTO settings, the cutoff frequency is set to 1/4 of the sampling frequency. Cutoff accuracy : Within -3 ±1 dB Attenuation : -30 (+3, -7) dB /oct.
HPF	[Strain measurement] Cutoff frequencies: 0.2 Hz, 1 Hz Attenuation: -6 dB/oct. [Voltage measurement] Cutoff frequencies: 0.2 Hz, 1 Hz Attenuation: -6 dB/oct. [Acceleration measurement (Piezoelectric)] －
Resolution	24 bits *When installed in EDX-100A, its resolution becomes 16 bits.
Distortion Rate	[Strain measurement] － [Voltage measurement] － [Acceleration measurement (Piezoelectric)] 1% or less
Monitor Output	Accuracy: Within ±5 V ±0.5% (With ±FS) Nonlinearity: Within ±0.5%FS
Dimensions	22 W x 119 H x 213 D mm (Excluding protrusions)
Weight	Approx. 400 g
TEDS	Reads information from TEDS-installed sensors.
Compliance	Directive 2014/30/EU (EMC) Directive 2011/65/EU, (EU) 2015/863 (10 restricted substances) (RoHS)

Standard Accessories	2 cross recessed binding head screw M3x6
Optional Accessories	CCA input cable U-111 CVM input cable U-121 to U-123 CVM input integrated cable N-121 Integrated output cable U-62 Conversion adapter FV-1A Voltage input box VI-8A (-T) Bridge box for quarter bridge system DBS-120B-8 (C) (T) DBS-350B-8 (C) (T) One-touch type bridge box DBV-120A-8 (C) DBV-350A-8 (C)

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