Description
The product with the part number 153357A-01L, also known as NI-9757, and its alternate part number is 782079-01. It is designed to be compatible with both Bosch LSU 4.2 and LSU 4.9 wideband oxygen sensors, as well as four differential narrowband oxygen sensors. This flexibility makes it suitable for a range of applications.
It supports various fuel types, including gas and diesel, provided there is client alignment of stoichiometry versus direct momentum. This ensures the device can accurately measure air/fuel ratios, lambda, and phi across different fuel systems. The measurements it can perform include A/F (air to fuel ratio), F/A (fuel to air ratio), Lambda, and Phi, providing comprehensive data for engine tuning and diagnostics.
The module features functional, fuse-protected heater control circuits for reliability. It operates at a maximum voltage of 32 V, with a specific operating voltage range for LSU 4.x sensors between 8 V to 16.5 V. This ensures safe and efficient operation. Additionally, it includes reverse battery protection up to -18 V to prevent damage from incorrect power connections.
With a power consumption of 100 mA max (without sensors), it is designed to be energy efficient. The module’s power supply capability must be capable of driving sensor heaters, up to 12 A if all channels are used, indicating its capacity to support multiple sensors simultaneously.
The device also includes an external DB-37 connector, with terminals labeled BATT (10) and GND (29), for easy and secure connection to power sources and ground. This feature simplifies the installation and integration process into existing systems.
| Specification | Detail |
|---|---|
| Part Number | 153357A-01L (NI-9757) |
| Alternate Part Number | 782079-01 |
| Compatible Oxygen Sensors | Bosch LSU 4.2 or LSU 4.9 wideband, and four differential narrowband oxygen sensors |
| Fuel Type Compatibility | Gas/Diesel (with client alignment of stoichiometry vs. direct momentum) |
| Measurements | A/F, F/A, Lambda, Phi |
| Heater Control Circuits | Functional, fuse-protected |
| Maximum Operating Voltage | 32 V |
| Operating Voltage for LSU 4.x Sensors | 8 V to 16.5 V |
| Reverse Battery Protection | Yes, up to -18 V |
| Power Consumption (without sensors) | 100 mA max |
| Power Supply Capability | Must be capable of driving sensor heaters, up to 12 A if all channels are used |
| External Connector | DB-37 with terminals labeled BATT (10) and GND (29) |
Question 1: Can the NI-9757 module support Bosch LSU 4.9 sensors?
Answer 1: Yes, it supports both Bosch LSU 4.2 and 4.9 sensors.
Question 2: What is the max operating voltage of the NI-9757?
Answer 2: 32V, with reverse battery protection.
Question 3: What type of fuel systems can NI-9757 measure?
Answer 3: Both gas and diesel fuel systems.
Question 4: How much power does the NI-9757 consume without sensors?
Answer 4: 100 mA max.
Question 5: What connector does the NI-9757 use for power?
Answer 5: External DB-37 connector.
