Wireless ELF™ 2 System
Wireless Load and Force Measurement
Wireless electronics, software, and force sensors enable your laptop or PC to capture and store force data.
The Wireless ELF 2 System is a user-friendly, cost-effective load measurement system. This system combines 3 FlexiForce® WB201 sensors, battery-operated WiFi transmitter (certified 802.11b radio- 802.11b/g/n compatible), and Windows-compatible software*, turning your PC or laptop into a force measurement instrument. The WELF2 system, sampling rates up to 200 Hz and comes in a high speed version with sampling rates up to 6,000 Hz. The WiFi connection setup has ad hoc and access point (unsecured router) network capability. For multi-handle use an unsecured router is required.
*Compatible with Windows 2000, XP, Vista, and Windows 7
Wireless Force Measurement Features & Benefits:
- Real-time data capture
- Movie recording & saving
- ASCII output to data analysis software
- Multi-point calibration
- Simple and storable calibration
- Capability to tare a load
- Adjustable sensitivity
- Internal triggering
- Displays in strip chart, column graph, or digital readout
- Includes 3 AAA batteries. Battery life up to 5 hours
- Connector: Compatible with all FlexiForce 2/3 pin sensor models: WB201, A201, A301, and A401
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The Wireless ELF 2 makes data capture in the field easy and flexible.
System Performance
| WELF2 System | Sampling Rate | Range | Max. # of Handles | Includes |
| Single Handle | Up to 200 Hz | 65 Meters | 1 | (1) Handle -WiFi transmitter; (3) WB201 sensors; Windows-compatible ELF software |
| Single Handle High Speed | Up to 6,000 Hz | 65 Meters | 1 | (1) Handle -WiFi transmitter; (3) WB201 sensors; Windows-compatible ELF high speed software |
| *Multi Handle | Up to 200 Hz | 50 Meters | 16 | (1) Handle -WiFi transmitter; (3) WB201 sensors; Windows-compatible ELF software |
| *Multi Handle High Speed | Up to 6,000 Hz | 25 Meters | 8 | (1) Handle -WiFi transmitter; (3) WB201 sensors; Windows-compatible ELF high speed software |
*An unsecured router is required for multi-handle use. Additional handles (WiFi transmitters) available for purchase.
Physical Properties of the Wireless Transmitter (Handle)
Length: 3.75" (95.3 mm)
Width: 1.83" (46.4 mm)
Height: 1.05" (26.7 mm)
Weight: 3.3 oz (95 g)
Wireless ELF 2 System Manual
For more detailed information on the Wireless ELF 2 System, including how to set it up and take force measurements, please download the ELF User Manual.
The Wireless ELF 2 system comes complete with three WB201 FlexiForce sensors (one in each of the three available force ranges):
WB201-L: Low (0 - 25 lb; 111 N)
WB201-M: Medium (0-150 lb; 667 N)
WB201-H: High (0-1000 lb; 4450 N)
The sensors are terminated with a male square pin to easily connect to the Wireless Transmitter.
Physical Properties of the Wireless ELF 2 Sensor (Model WB201)
Thickness: 0.008" (0.203 mm)
Length: 7.75" (197 mm) End-to-end
Width: 0.55" (14 mm)
Active sensing area: 0.375" (9.53 mm) Diameter
Connector: Custom interface to ELF Data Acquisition System
Recommended Maximum Force
| Sensor | Max. Force | Max. Force |
| (High Gain) | (Low Gain) | |
| Sensor | Max. Force | Max. Force |
|---|---|---|
| WB201 - L | 0 - 1 lb (4.4 N) | 0 - 25 lb (111 N) |
| WB201 - M | 0 - 25 lb (111 N) | 0 - 150 lb (667 N) |
| WB201 - H | 0 - 150 lb (667 N) | 1 - 1000 lb (4448 N |
(Adjustable gain feature of the Wireless ELF 2 System allows you to set force ranges)
Typical Sensor Performance
Linearity (Error): < ±3% (Line drawn from 0 to 50% load)
Repeatability: < ±2.5% of Full Scale (Conditioned Sensor, 80% of Full Force Applied)
Hysteresis: < 4.5 % of Full Scale (Conditioned Sensor, 80% of Full Force Applied)
Drift: <5% / logarithmic time (Constant Load of 90% sensor rating)
Response Time: < 5 µsec (Time required for the sensor to respond to an input force; Impact load - recorded on Oscilloscope)
Operating Temperature: 15°F - 140°F (-9°C - 60°C)*
* Force reading change per degree of temperature change = ±0.2% / °F (0.36%/°C)
* For loads less than 10 lb, the operating temperature can be increased to 165° F (74° C)
Wireless ELF 2 Standard Software Features:
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Wireless ELF System Screen Shot |
Optional Software Features:
Contact us to discuss your specific requirements. |
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Optional: Multi-Handle Wireless ELF Software |
Wireless ELF 2 System & Sensor Pricing
Wireless ELF 2 Systems |
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| WELF2 System | $999 | ||||
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| WELF2 High-Speed System | $1,249 | ||||
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| Multi-handle WELF2 System | $1,199 | ||||
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| Multi-handle WELF2 High-Speed System | $1,499 | ||||
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| Additional WELF2 Handles | 1 - 4 | ||||
| $800/each | |||||
| 5 - 9 | |||||
| $760/each | |||||
| 10 - 15 | |||||
| $720/each | |||||
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$49
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Wireless ELF 2 Sensors (WB201) |
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| 4-Pack | 8-Pack | ||||
| $65 | $117 | ||||
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*WELF 2, High-Speed WELF2 and Multiple handle WELF 2 Systems include (1) Handle, (1) Data recording software CD, (3) WB201 sensors, one in each force range (L, M & H). Please note: (1) sensor requires (1) handle to measure (1) point. If you need to measure additional points, you need to purchase additional handles (transmitters) and sensors.
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