These two 8-Channel and 1 4-Channel ultrasonic (UT) pulser-receivers for non-destructive testing (NDT) boards share several characteristics and also target very different use-cases. That is, each is optimized for different applications.
Please see the pulse “tank” voltage table for DL01 flagship transmit gain settings and a note on this “RS8” transmit gain settings.
DL0100A1 is optimized for stand-alone or remote operations, including datalogging, as an ultra lower power, monitoring system, with multiple communication and power options (including Power-over-Ethernet PoE) and multiple sensing, instrumentation, and control accessory options and capabilities. It includes battery management, and multiple wireless radio comms and sleep / wake options. 35 MHz sample rate. Design-optimized for production and low cost at volume.
“RS8” (HDL-0108-RSCPT) is a USB, high data rate, rapid channel scan instrument, with real-time control that does not interrupt data flow during scanning. Transmit gain (pulse voltage) is controllable in smaller steps and more linearly. Standard operations include single channel PAC, 8-channel single sweep, continuous single channel, continuous 8-channel sweep. 40 MHz sample rate default. Configuration options include custom channel scans and high sample rate (up to 100 MHz or more).
| Default/OTS/As-Shipped Info | RS8 | RS104 | DL0100A1 |
| Use-Case Example | bench or non-I/S scans + R&D | I/S scanner – match legacy # XD channels | long-term remote low power monitoring |
| Channels | 8 | 4 | 8 |
| WFs/sec | 128 (16 Hz each channel / full channel set) | ~36 (9 Hz each channel / full channel set) | ~1 (0.13 Hz single channel) |
| WF Sample Rate [MHz] | 40 | 40 | 35 |
| WF Length (# samples) | 4095 | 4095 | 2500 |
| Comms Interface | USB | RS485<=>USB | Anything serializable: Cellular, Bluetooth, Serial, USB-Serial, Radio like 802.15.4 incl LoRa, ZigBee, etc |
| # comms channels/ports | 2: data (async 245 style FIFO) | control (serial) | 2: both RS485: | 1: single |
| control baud nominal | 57600 | 57600 | 57600 |
| data baud max or nominal | 5-6Mbps nom. | 2Mbps nom. for 350-ft cable | 1-2+ Mbps max direct USB serial, 230k max radio or GW |
| data rate | 4-5 Mbps | 1.2+ Mbps | 80% of baud rate |
| Cabling/Wiring | USB | 4x STP: 1 PR Power, 1 PR Ground, 1 PR Control, 1 PR Data | Wireless / depends on comm choice |
| Pulse Characteristics | (Type II) | (Type II) | (Type I) |
| Power Mgmt | Always on | By host I/S system typically | Inherent multi-option low power / power control auto, incl synch and or RTC sleep/wake |
| Power | USB only or external 5-6VDC | 15VDC nominal, supplied by I/S supply typically | 6VDC nominal, Power-over-Ethernet |