Description
The NI-9757 C Series Oxygen Sensor Interface Module, with part number 782079-01, is designed to provide a high-quality interface for oxygen sensors in various applications. This module is compatible with Bosch LSU 4.2 or LSU 4.9 wideband sensors, in addition to four differential narrowband sensors, offering flexibility in sensor selection for diverse requirements.
It delivers O2 measurement outputs in several formats, including A/F (Air/Fuel ratio), F/A (Fuel/Air ratio), Lambda, and Phi, ensuring comprehensive data for analysis and monitoring. The module features functional, fuse-protected heater control circuits, safeguarding the system and providing reliability in operation.
For the LSU 4.x sensors, it supports a maximum operating voltage range from 8 V to 16.5 V, while the power supply range for the module extends from 6 V to 32 V. This wide range accommodates various power supply configurations, enhancing the module’s adaptability in different setups. Moreover, it includes reverse battery protection up to -18 V, preventing damage from incorrect power connections.
The module exhibits low power consumption, with a maximum current draw of 100 mA without sensors connected, ensuring efficient operation. It can also handle a maximum sensor heater current of 12 A when all channels are in use, demonstrating its capacity to manage the power needs of connected sensors effectively.
Connectivity is facilitated through an external DB-37 connector, with terminals labeled BATT (10) and GND (29), providing straightforward and secure connections to power sources and ground. This feature simplifies the integration of the module into existing systems, making it an essential tool for professionals requiring reliable oxygen sensor interfacing capabilities.
| Specification | Details |
|---|---|
| Part Number | 782079-01 |
| Model | NI-9757 |
| Description | NI 9757 C Series Oxygen Sensor Interface Module |
| Compatible Oxygen Sensors | Bosch LSU 4.2 or LSU 4.9 wideband, Four differential narrowband |
| O2 Measurement Outputs | A/F, F/A, Lambda, Phi |
| Heater Control Circuits | Functional, fuse-protected |
| Maximum Operating Voltage for LSU 4.x Sensors | 8 V to 16.5 V |
| Power Supply Range | 6 V to 32 V |
| Reverse Battery Protection | Up to -18 V |
| Current Consumption without Sensors | 100 mA max |
| Maximum Sensor Heater Current | 12 A (all channels in use) |
| External Connector | DB-37 with terminals labeled BATT (10) and GND (29) |
Question 1: What is the part number for the NI-9757 module?
Answer 1: 782079-01
Question 2: What Bosch sensors is the NI-9757 compatible with?
Answer 2: LSU 4.2/4.9
Question 3: What is the max sensor heater current for NI-9757?
Answer 3: 12A
Question 4: What voltage does the NI-9757 operate at?
Answer 4: 6V to 32V
Question 5: Does the NI-9757 offer reverse battery protection?
Answer 5: Yes, up to -18V
