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The B&K Precision DAS220-BAT Series is a portable 10-channel data recorder designed to measure and record parameters commonly found in process applications, including voltage, temperature, current, resistance, frequency, and pulse. The instrument was developed by Sefram, B&K Precision's French subsidiary that specializes in data acquisition instruments, field strength meters, and other test and measurement equipment. Ten universal analog channels are integrated directly into the chassis with convenient screw-terminal connectors, and a 10-inch color touchscreen presents measurement results in graphical or numerical form for on-the-spot analysis.
A data recorder in this category captures multiple physical or electrical signals simultaneously over time, building a time-stamped record that can be reviewed, exported, and analyzed long after the measurement event. Per the datasheet's stated applications, the DAS220-BAT is used for temperature logging with thermocouples and platinum resistance temperature sensors, voltage measurements down to the ±0.5 mV range, 4-20 mA current loop measurements, and frequency, pulse totalization, and pulse rotation measurements that can be expressed in RPM (rotations per minute). The free DasLab Windows software supports remote control, configuration, and data transfer over LAN or WiFi.
B&K Precision has provided test and measurement instruments for more than 60 years, headquartered in Yorba Linda, California. The DAS220-BAT Series was developed by Sefram, B&K Precision's French subsidiary based in St. Etienne, France. Sefram operates as a B&K Precision group member and specializes in data acquisition instruments, field strength meters, and related test and measurement equipment for European and global customers.
The DAS220-BAT Series is a portable multi-channel data recorder family from B&K Precision, designed and built by Sefram for process measurement, environmental monitoring, and field data logging applications. The series integrates 10 universal analog input channels with thermocouple, Pt100/Pt1000, voltage, and resistance support alongside logic, timing, and alarm I/O — all in a battery-capable chassis with a 10-inch touchscreen.
Within the series, the primary distinction described on the datasheet is the inclusion of the internal lithium-ion battery on the -BAT configuration, which provides typical operation of 15 hours with standby mode or 10 hours without standby mode. The non-battery configuration weighs 3.3 lbs (1.5 kg); the -BAT configuration weighs 4.5 lbs (2 kg). Both share identical acquisition specifications, channel counts, interfaces, and software.
Each model linked below is offered on its own product page with condition-matched pricing. Select the new configuration that fits your application, calibration program, and budget; the specifications, accessory compatibility, and DasLab software support are the same across configurations of the same model.
The principal difference within the DAS220-BAT Series, as described on the datasheet, is whether the unit includes the internal non-removable lithium-ion battery. The -BAT designation indicates the battery-equipped version with up to 15 hours of typical operation in standby mode, suited to field deployments and locations where mains power may be interrupted or unavailable. Acquisition performance, channel counts, interfaces, and software are common across the family.
The comparison table that follows summarizes the model-by-model specifications relevant to selection.
| Model | Analog Channels | Battery | Internal Memory |
|---|---|---|---|
| DAS220-BAT | 10 | Lithium-ion, up to 15 hours | 32 GB |
| DAS220 | 10 | None | 32 GB |
Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.
| Analog Channels | ||
|---|---|---|
| Analog Input Channels | 10 integrated channels | |
| 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) | ||
| Sensor Range by Type | J | -210 °C to 1200 °C |
| K | -250 °C to 1370 °C | |
| T | -200 °C to 400 °C | |
| S | -50 °C to 1760 °C | |
| B | 200 °C to 1820 °C | |
| E | -250 °C to 1000 °C | |
| N | -250 °C to 1300 °C | |
| C | 0 °C to 2320 °C | |
| 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. |
| 3 wires | 50 Ω max. | |
| Resistance | ||
| Ranges | 1 kΩ and 10 kΩ | |
| Accuracy | 1 Ω (range 1 kΩ) and 10 Ω (range 10 kΩ) | |
| Acquisition System | ||
| Resolution | 16 bit | |
| Acquisition System | Scan, one sample per channel | |
| Sampling Interval | V >50 mV | 1 ms to 20 min |
| V ≤50 mV, thermocouples and Pt100 / Pt1000 | 2 ms to 20 min | |
| 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 | |
| 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 10 Million, 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 | |
| General | ||
| Internal Flash Drive Size | 32 GB | |
| Maximum File Size | 2 GB | |
| Operating Temperature | 0 °C to 40 °C, 80% RH (no condensation) | |
| Storage Temperature | -20 °C to 60 °C | |
| 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 (-BAT) | Non removable, Lithium-ion | |
| Typical Battery Life (-BAT) | 15 hours with standby mode, 10 hours without stand-by mode | |
| Safety | Cat I 100 V, according to IEC61010-1 | |
| Weight | DAS220 | 3.3 lbs (1.5 kg) |
| DAS220-BAT | 4.5 lbs (2 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
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On-site Lab
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