Description
The 187898A-01 is a part of the SCXI & Legacy category, specifically the SCXI-1581 model. This module is identified as the SCXI-1581 32 ch, 100 uA Current Excitation Module in its short description. The long description further clarifies it as the National Instruments SCXI-1581 Analog Output Module, highlighting its primary function and manufacturer.
It is compatible with several terminal blocks, including the SCXI-1300, SCXI-1310, BNC-2095, and TBX-96. A notable feature of this module is its onboard temperature sensor, which cannot be measured when linked to the SCXI-1300 terminal block, indicating some limitations in its usage scenarios.
The module boasts 32 channels of current excitation, each providing 100 µA. This makes it particularly suited for applications involving RTDs and thermistors, where precise current excitation is critical for accurate temperature measurements.
For connectivity, it uses a back signal connector designed for linking and communication with E/M Series DAQ instruments. Additionally, the CH0 signal pair transmits analog signals in a multiplexed mode, enhancing its versatility in various measurement setups.
Despite its obsolete status, announced by National Instruments, it remains available for purchase and repairs through Apex Waves, ensuring continued support for users relying on this specific model for their measurement and control tasks.
| Attribute | Description |
|---|---|
| Part Number | 187898A-01 |
| Category | SCXI & Legacy |
| Model | SCXI-1581 |
| Short Description | SCXI-1581 32 ch, 100 uA Current Excitation Module |
| Long Description | National Instruments SCXI-1581 Analog Output Module |
| Compatible Terminal Blocks | SCXI-1300, SCXI-1310, BNC-2095, TBX-96 |
| Onboard Temperature Sensor | Not measurable when linked to SCXI-1300 |
| Channels | 32 |
| Current Excitation | 100 µA |
| Application | RTDs and thermistors |
| Back Signal Connector | Used for linking and communication with E/M Series DAQ instrument |
| CH0 Signal Pair | Transmits analog signals in multiplexed mode |
| Obsolete Status | Announced by National Instruments, available for purchase and repairs by Apex Waves |
Question 1: What is the part number for the SCXI-1581 module?
Answer 1: 187898A-01
Question 2: How many channels does the SCXI-1581 have?
Answer 2: 32 channels
Question 3: What is the current excitation of the SCXI-1581?
Answer 3: 100 µA
Question 4: Can the SCXI-1581’s onboard temperature sensor be used with SCXI-1300?
Answer 4: No, it has limitations
Question 5: Is the SCXI-1581 still supported for repairs?
Answer 5: Yes, through Apex Waves
