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The B&K Precision DAS240-BAT is a portable multi-channel recorder designed to measure parameters commonly found in process applications, including voltage, temperature, current, resistance, frequency, and pulse signals. Developed by B&K Precision's French subsidiary Sefram, the unit ships standard with 20 universal analog input channels on convenient screw input terminal blocks, and the channel count can be expanded up to 200 channels by stacking and daisy-chaining additional 20-channel modules.
According to the printed application list, the DAS240-BAT addresses temperature monitoring with thermocouples and platinum resistance temperature sensors, voltage measurements down to the ±0.5 mV range, 4-20 mA current loop measurements (using the optional 50 Ω shunt terminal block), and frequency, pulse totalization, and pulse rotation measurements that can be expressed in RPM. The combination of universal analog channels, logic I/O, and timing inputs makes the instrument suitable for mixed-signal data logging on a single platform.
B&K Precision Corporation acquired Sefram Instruments, a French manufacturer specializing in recorders, field strength meters, and other test and measurement instruments. The DAS240-BAT is developed by Sefram and distributed under the B&K Precision brand in North America.
| Analog Channels | |
|---|---|
| Number of Analog Input Channels | 20 channels standard, expandable to 200 with optional 20-channel modules |
| DC Voltage | |
| Ranges | ± (0.5, 1, 2.5, 5, 10, 25, 50, 100) mV; ± (0.5, 1, 2.5, 5, 10, 25, 50, 100) V |
| Maximum input Voltage | 100 V DC |
| Accuracy | 0.1% of the full scale ±10 µV |
| Temperature with Thermocouples (Cold junction compensation: ±0.5 °C) | |
| Type J | -210 °C to 1200 °C |
| Type K | -250 °C to 1370 °C |
| Type T | -200 °C to 400 °C |
| Type S | -50 °C to 1760 °C |
| Type B | 200 °C to 1820 °C |
| Type E | -250 °C to 1000 °C |
| Type N | -250 °C to 1300 °C |
| Type C | 0 °C to 2320 °C |
| Type L | -200 °C to 900 °C |
| Temperature with Pt100 and Pt1000 | |
| Current | 1 mA (Pt100), 100 µA (Pt1000) |
| Range | -200 °C to 850 °C |
| Measurements | 2 and 3 wires |
| Accuracy (at 20 °C) | 0.3 °C ±0.1% of reading |
| Compensated Resistance (2 wires) | 30 Ω max. |
| Compensated Resistance (3 wires) | 50 Ω max. |
| Resistance | |
| Ranges | 1 kΩ and 10 kΩ |
| Accuracy | 1 Ω (range 1 kΩ) and 10 Ω (range 10 kΩ) |
| Logic Input/Output | |
| Number of Channels | 12 |
| Maximum Permitted Voltage | 24 V Cat I |
| Input Impedance | 4.7 kΩ |
| Sampling Rate | 1 ms max. |
| Timing Input | |
| Number of Channels | 4 (K1 to K4) |
| Maximum Permitted Voltage | 24 V Cat I |
| Input impedance | 4.7 kΩ |
| Sampling Rate | 1 ms max. |
| Pulse Counter | 0 to 10000000, accuracy 0.1% |
| Frequency Measurement | 1 Hz to 10 kHz, accuracy 0.1% |
| PWM Measurement | 100 Hz to 2 kHz, accuracy 0.1% |
| Alarm Output | |
| Number of Channels | 4 Alarms (A, B, C, D) |
| Output Level | 0 to 5 V |
| Acquisition System | |
| Resolution | 16 bit |
| Acquisition System | Scan, one sample per channel |
| Sampling Rate (V >50 mV) | 1 ms to 20 min |
| Sampling Rate (V ≤50 mV, thermocouples and Pt100 / Pt1000) | 2 ms |
| Trigger | Date, delay, threshold, combination of thresholds (and/or), word on logic channels (and, or, slope, level) |
| Pre-trigger | Variable from 0 to 100k samples |
| Internal Storage | |
| Internal Flash Drive Size | 32 GB |
| Maximum File Size | 2 GB |
| Environmental | |
| Operating Temperature | 0 °C to 40 °C, 80% RH (no condensation) |
| Storage Temperature | -20 °C to 60 °C |
| Auxiliary | |
| Display | 10" TFT touchscreen LCD, backlit, 1024 x 600 dots |
| Power Supply | 15 V / 4 A max with main adapter (100 / 240 VAC) |
| Interfaces | 2 x USB host, LAN (10/100 base-T with RJ45 socket) |
| Battery | Non removable, Lithium-ion |
| Typical Battery Life | 15 hours with standby mode, 10 hours without stand-by mode |
| Safety | Cat I 100 V, according to IEC61010-1 |
| Weight | 3.3 lbs (1.5 kg) |
| Dimensions (W x H x D) | 2.6" x 11.7" x 6.9" (66 x 298 x 176 mm) |
| Warranty | Two Years |
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
B&K
Condition
New
Manufacturer
B&K Precision
30+ Years in Business
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30+ Years in Business
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Knowledgeable Staff
On-site Lab
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