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Endevco 2771B-1 remote charge converter/convertor (rcc)
Article Sent By: Curtis.firstname.lastname@example.org (Curtis Cameron)
Curtis Cameron is presenting: Endevco 2771B-1 remote charge converter/convertor (rcc)
Endevco/Meggitt 2771B-1 Remote Charge Convertor (RCC)
Comes with what you see in the pictures. If you don't see it, you probably wont get it.
Specifications are from Endevco and may vary slightly due to upgrades, options or revisions this unit may or may not have.
Serial Number blurred out in picture because we have more then one.
Link to Datasheet: Endevco 2771B Remote Charge Converter (PDF)
* Supports IEEE P1451.4 for Smart Sensors
* M1 Version with Male BNC for Panel Mounting
* Radiation Tested to 1.0 Meg Rads
The ENDEVCO® Model 2771B-XX Remote Charge Convertor (RCC) is a low noise, two-wire, single-ended device designed for use with piezoelectric transducers. This device transforms the transducer’s high impedance charge output to a low impedance voltage proportional to the transducer’s charge. The signal output from the RCC is less susceptible to noise pick-up because of its low impedance voltage. Also, the shunt capacitance of the cable connecting the RCC to the main conditioner does not significantly affect the noise and sensitivity of the system.
The signal output from the RCC and the current to the RCC are carried with the same wire. The 2771B has fixed gains of 0.1 mV/pC, 1.0 mV/pC, 10 mV/pC or 20 mV/pC (2771B-1 has a fixed gain of 1.0 mV/pC). This is a low noise device, with a frequency response of 1 to 40 kHz. It operates within a constant current range of 4 to 20 mA.
This unit supports the proposed IEEE P1451.4 TEDS (Transducer Electronic Data Sheet); a memory chip that allows storage and recall of the following sensor data: Sensitivity, Model Number, Serial Number, Manufacturer, Date of last calibration and sensor location.
Type: Piezoelectric single-ended with one side connected to signal ground
Source Resistance: 100 Kohms minimum to meet all specifications
Source Capacitance: 30 nF maximum to meet all specifications
Type: Single ended with one side connected to signal ground. The output signal is inverted.
Output Impedance: 50 Ohms maximum.
Capacitance Load: Operation up to 100 nF maximum
DC Output Bias: 12.5 to 15 V over the temperature range -40°C to 100°C
Linear Output Voltage: 2771B-1 units are 10 vPk - Pk and dependent upon the input signal frequency
Limited Output Voltage: 20 V pk-pk with 22 VDC minimum compliance voltage
TEDS Data: Programmable data includes: Sensitivity, Model Number, Serial Number, Manufacturer, Date of last calibration and sensor location.
Gain Accuracy: +/- 2.5% at 1 nF Source Capacitance and 100 Hz reference frequency.
Residual Noise: The maximum residual noise RTI is expressed in the following formula at ambient temperature with BW of 1 Hz to 50 kHz.
0Rs = Source Resistance in Ohms
Gain Stability with Temperature: +/- 1% referred to 25°C at 100 Hz from -40°C to 100°C
Gain Stability with Power: +/- 0.01 mA over bias current of 4 mA to 20 mA
Total Harmonic Distortion: Less than 0.5% for output signals
Warm Up Time: 120 sec. maximum for the 277B-1 units.
Operating: -40°F to 212°F (-40°C to 100°C)
Storage: -76°F to 257°F (-65°C to 125°C)
Vibration: 20 g pk from 55 Hz to 2000 Hz
Shock: 100 g pk with 3.6 ms Haversine pulse
Radiation: 1.0 MEG Rads (integrated Gamma)
Current Requirement: 4 mA to 20 mA
Compliance Voltage: 18 to 36 V. This voltage represents the maximum of AC plus DC components
Dimensions: 3.2" length x 0.5 diameter (8.1 cm x 1.27 cm).
Weight: 2.0 oz (56 gm) maximum
Case Material: Stainless Steel Tube
Input: 10-32 Microdot coaxial connector
Mounting: Unit can be mounted with a cable harness clamp
Case Isolation: Unit case is completely isolated with a clear Teflon sleeve
Compliance: Industrial CE Standard Class A
Maintain high levels of precision and accuracy using Endevco's factory calibration services. Call Endevco’s inside sales force at (***)-982-6732 for recommended intervals, pricing and turn-around time for these services as well as for quotations on our standard products.
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