DI-8B38 Strain Gauge Amplifier from DATAQ Instruments.

Description

DI-8B38 Strain Gauge Amplifier. Input Modules with Wide/Narrow Bandwidth for the DI-4718B Data Logger from DATAQ Instruments.

Provides gain and excitation for strain gage-based transducers (load cells, pressure sensors, torque meters, etc.)
Interfaces to 100Ω Thru 2kΩ Full-Bridge Strain Gages (model dependent)
High Level Voltage Outputs
1500Vrms Transformer Isolation
ANSI/IEEE C37.90.1 Transient Protection
Input Protected up to 240VAC Continuous
100dB CMR
3Hz or 8kHz Signal Bandwidth
±0.05% Accuracy
±0.02% Linearity
Low Drift with Ambient Temperature
Mix and Match Module

	DI-8B38-0x	DI-8B38-3x
Input Range:	±10mV to ±100mV
Input Bias Current:	±0.5nA
Input Resistance:	Normal: 50MΩ Power Off: 100kΩ Overload: 100kΩ
Input Protection:	Continuous: 240VAC (240VAC between + and -/+EXC/-EXC terminals. 120VAC between - and +EXC/- EXC terminals and between +EXC and -EXC terminals.) Transient: ANSI/IEEE C37.90.1
Excitation Output (-x1) Load Resistance	+3.333V ±2mV 100Ω to 2kΩ
Excitation Output (-2x, -5x) Load Resistance	+10V ±5mV 300Ω to 2kΩ
Excitation Load Regulation:	15ppm/mA
Excitation Stability:	50ppm/°C
Excitation Protection:	120VAC
CMV, Input to Output:	1500Vrms
Transient, Input to Output:	ANSI/IEEE C37.90.1
CMR (50Hz or 60Hz):	120dB
NMR:	100dB per decade above 8kHz
Accuracy:	±0.05% Span (Includes nonlinearity, hysteresis and repeatability)
Nonlinearity:	±0.02% Span
Stability:	Offset: ±25ppm/ºC Gain: ±100ppm/ºC	Offset: ±25ppm/ºC Gain: ±75ppm/ºC
Noise:	Output, 100kHz: 1500µVrms	Output, 100kHz: 200µVrms
Bandwidth, -3dB:	8kHz	3Hz
Response Time, 90% Span:	70µs	160ms
Output Range:	±5V
Output Protection:	Transient: Continuous Short to Ground ANSI/IEEE C37.90.1
Power Supply Voltage:	+5VDC ±5%
Power Supply Current:	110mA No Exc. Load 150mA Full Exc. Load
Power Supply Sensitivity:	±50ppm/%
Mechanical Dimensions:	28.1mm × 41.9mm × 10.2mm
Operating Temperature:	-40ºC to +85ºC
Storage Temperature:	-40ºC to +85ºC
Relative Humidity:	0 to 95% Noncondensing