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NI-9757
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NI-9757, 2-Channel, C Series Oxygen Sensor Interface Module

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National Instruments NI-9757 C Series Oxygen Sensor Interface Module

The NI‑9757 (Part number: 782079-01) gives an interface to two Bosch LSU 4.2 or LSU 4.9 wideband exhaust oxygen sensors and four differential narrowband oxygen sensors. The NI‑9757 gadget driver permits client alignment of stoichiometry versus direct momentum for an assortment of fuel types (gas/diesel default). O2 estimations are accounted for as A/F, F/A, Lambda, and Phi. The NI‑9757 has functional, fuse‐protected warmer control circuits.

This model permits a predetermined measure of current for exchanging output channels or sourcing the output stack. If the NI 9757 goes into an overcurrent state by surpassing the predetermined greatest exchanging frequency or the output stack, the power supply starts to drop in voltage until it turns off or the overcurrent condition is evacuated. When the NI 9757 module is in this state, it can acknowledge new output state information. The outside DB-37 connector has terminals marked BATT (10) and GND (29). A common power control source is a car 12 V battery framework; however, the NI 9757 can acknowledge control from a scope of 6 V to 32 V. The LSU 4.x wide-band sensors will only work when the power supply is in the scope of 8 V to 16.5 V. The module is switch battery ensured to - 18 V.

Without sensors associated and empowered, the NI 9757 requires 100 mA maximum from the outside supply. The outer power source must be fit for driving the sensor radiators, which may need 12 A if all diverts are being used.

ModelNI-9757
ManufacturerNational Instruments
Part Number782079-01
TypeC Series Oxygen Sensor Interface Module
Narrow-band Sensor Input Channels4
Bosch Channels2
Channel Reading Update Rate1 kHz
A/D Resolution12 bits
Weight170 g.
Warranty2-3 Year Warranty
NI-9757 ManualUser Manual and Maintenance Manual Available for Download
PriceContact a sales representative for a quote.

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National Instruments NI-9757 Frequently Asked Questions

 

Question: What is the external power input range for the NI 9757 module?

 

Answer: The external power input range for the NI 9757 module is 6 to 32 V.

 

Question: What is the resolution of the NI-9757?

 

Answer: The resolution of the NI-9757 is 12-bit.

 

Question: Which accessories are required for the NI 9757?

 

Answer: The NI 9757 requires the NI 9923 Terminal Block, a Power Supply with 12VDC 15 A 100-240VAC/110-150VDC Input, and a NI O2 Sensor Kit with Sensor, Cable, Bung, and Plug.

 

Question: What is the internal analog-to-digital conversion rate of the NI-9757?

 

Answer: The internal analog-to-digital conversion rate of the NI-9757 is 1000 samples/s.

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