Atec Endevco-2792B - Manual (Page 2)

ENDEVCO
MODEL
2792B
ISOTRON ® Signal Conditioner
SPECIFICATIONS
INPUTS
TYPE
Single-ended, constant current two-wire system
INPUT IMPEDANCE > 20 k Ω
EXCITATION CURRENT 4 mA or 10 mA ±10%, set by internal jumper, per channel
COMPLIANCE VOLTAGE > 18 V. This voltage is the sum of AC and DC components
OUTPUTS
TYPE
Single-ended one side connected to circuit ground
OUTPUT IMPEDANCE < 10 Ω , in series with at least 40 µF
LINEAR OUTPUT VOLTAGE 10 V pk-pk (3.535 V rms) or greater
LINEAR OUTPUT CURRENT 2.0 mA pk-pk or greater
TRANSFER CHARACTERISTICS
GAIN
0.001 to 99.9 continuously
Adjustable using the full scale Digi switch and THD x1/x10 switch
Accuracy ±1.5% (Including variation with temperature and time)
FREQUENCY RESPONSE Flat within ±5% from 1 Hz to 30 kHz, reference at 100 Hz
Lower Cutoff Frequency -5% at 1 Hz, -3dB at 0.3 Hz (typical)
Upper Cutoff Frequency -5% at 30 kHz, -3dB at 80 kHz (typical)
AMPLITUDE LINEARITY 1% of reading from best-fit straight line approximation
RESIDUAL NOISE 0.4 mV rms maximum for gains 0.5 to 2.0 gain. 2 mV rms maximum for 5.0 to 20.0
or 2.0 or 2 mV rms gains of 5.0 to 20.0 within a 30 KHz bandwidth.
TOTAL HARMONIC DISTORTION Less than 1% for signals of full scale or less at any gain from .5 to 20.0
CROSSTALK 20.0 mV rms maximum RTO or 1.0 mV rms RTI whichever is greater
Crosstalk specification is valid for the following conditions:
One channel set at 100% of nominal sensitivity and x1 gain
Adjacent channel set at any gain up to 20.0 (eg. 50% nominal sensitivity
and x 10 gain) with a 250
Ω shunt resistor at the input
ENVIRONMENTAL CHARACTERISTICS
TEMPERATURE
Operating +32°F to +122°F (0°C to +50°C)
Storage
-65°F to +185°F (-54°C to +85°C)
HUMIDITY 95% R.H.
POWER
LINE VOLTAGE
100/120/220/240 VAC 50 to 60 Hz (switch selectable)
PHYSICAL
DIMENSIONS
19" rack mounting, 1.73" h x 19.00" w x 9.45" d (44 mm x 483 mm x 240 mm)
WEIGHT 3.97 lbs. (1.8 kg)
FRONT PANEL FEATURES
Power Indicator LED indicates when power is applied
Gain Switch Two-position, recessed switch for gain of 1 or 10
Sensitivity Normalization Four-digit pushbutton switch. See example below
Status Indicators LED will light green, when the transducer is connected properly. The LED
will light red when the input is shorted. The LED will not light when the input
is open
REAR PANEL FEATURES
Input Connectors BNC
Output Connectors BNC
ACCESSORIES
Instruction Manual
EW599
AC POWER CORD
SENSITIVITY NORMALIZATION/ADJUSTMENT: A four digit push button switch is used to normalize each channel to allow for
variation in nominal sensitivity of the transducer. The switch is set to read the
actual percentage of nominal (desired) sensitivity. For example, if the nominal
(desired) sensitivity is 10.0 mV/g and the actual sensitivity is 10.21 mV/g, set
Percentage of Nominal Sensitivity Switch to 102.1; Gain Switch to x1. If nominal
(desired) sensitivity is 100 mV/g and the actual sensitivity is 10.21 mV/g, set
Percentage of Nominal Sensitivity Switch to 10.21 and Gain Switch to x 10.
Continued product improvement necessitates that Endevco reserve the right to modify these specifications without notice. Endevco maintains a program of con-
stant surveillance over all products to ensure a high level of reliability. This program includes attention to reliability factors during product design, the support of
stringent Quality Control requirements, and compulsory corrective action procedures. These measures, together with conservative specifications have made the
name Endevco synonymous with reliability.
ENDEVCO CORPORATION, 30700 RANCHO VIEJO ROAD, SAN JUAN CAPISTRANO, CA 92675 USA (800) 982-6732 (949) 493-8181 fax (949) 661-7231
www.endevco.com
Email:[email protected]
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