Specifications

OWNER’S GUIDE  CONDITIONERS, MDAQ | 15387
MDAQ-SUB-BRIDGE 8-channel Bridge module
Sensor compatibilty: Full bridge sensors, 1/2 bridge sensors
Voltages up to ±10V, Potentiometric/Ωic sensors
Special functions: Built-in bridge completion for half bridge
AC/DC coupling software selectable
Software selectable auto-balance
Several selectable excitation voltages
Sense lines for the most accurate measurements
Ranges: 15 input ranges from ±2.5mV to ±10V
Bandwidth: 30 kHz
Input conguration: Differential (not isolated)
Compatibility: Plugs into any MDAQ-BASE card
Signal connection: -D: Banana plugs (standard)
-L: 8-pin LEMO connector (optional)
MDAQ-SUB-BRIDGE specications
Parameter MDAQ-SUB-BRIDGE
Gain: 0.5 to 2000
Input ranges @ 5VDC excitation:
±2.5, 5, 10, 20, 25, 50, 100, 200, 250, 500, 1000, 1250, 2500, 5000, 10 000 mV ±0.5, 1, 2, 4, 5, 10, 20,
40, 50, 100, 200, 250, 500, 1000 mV/V
Input impedance: 1 MΩ
Input noise: 3.5 nV * √Hz
Typ. input offset drift: 0.5 μV/K (for ranges < 200 mV)
DC Accuracy (High Gain)
±2.5mV;5mV/V;10mV/V;±25mV
20mV
50mV
±100mV to ±200mV
(with correction table applied) (no correction table applied)
±0.03% of reading ±15μV [±3μV/V @5 Vexc] ±0.15% of reading ±15μV [±3μV/V @5 Vexc]
±0.03% of reading ±0.12% of range ±0.03% of reading ±0.12% of range
±0.03% of reading ±0.06% of range ±0.03% of reading ±0.06% of range
±0.03% of reading ±0.03% of range ±0.03% of reading ±0.03% of range
DC Accuracy (Low Gain)
±0.250 to ±1V
±1.25V; ±2.5V
±5; 10V
(with correction table applied) (no correction table applied)
±0.03% of reading 400μV [±80μV/V @5 Vexc] ±0.15% of reading 400μV [±80μV/V @5 Vexc]
±0.03% of reading ±1mV ±0.15% of reading ±1mV
±0.03% of reading ±0.03% of range ±0.15% of reading ±0.03% of range
Gain drift @ 5VDC excitation: 10 ppm/K of range ±0.02 μV/V/K
Excitation voltage: 0.25, 0.5, 1, 2.5, 5V (default) and 10 VDC (software selectable)
Excitation accuracy: ±0.05 % ±0.7 mV
Excitation drift: ±10 ppm/K ±50 μV/K
Excitation protection: Continuous short to ground
Excitation current limit: 50 mA/channel
Bridge types:
4- or 6-wire full bridge
3- or 5-wire 1⁄2 bridge with internal completion (software selectable)
Completion and Shunt resistor accuracy: 0.05% 5ppm/°K
Bridge resistance: 120 Ω to 10 k Ω
Automatic bridge balance:
2.5mV to 20mV
25mV to 200mV
250mV to 1V
2V to 10V
Absolute Voltage
±10mV
±100mV
±0.5V
±5V
mV/V @ 5V EXC
±2mV/V
±20mV/V
±100mV/V
±1000mV/V
μm/m @ 5VEXC
(k=2 quarter bridge)
±4,000μm/m
±40,000μm/m
±200,000μm/m
±2,000,000μm/m
V