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Abworks inc, Sc-121 specifications – Atec Labworks-SC-121 User Manual

Page 4

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1

Internal switch selectable range.

2

Sweep can start at any frequency within the programmed range, in either direction.

3

The sweep cycle counter increments at each low frequency end point transition during continuous sweep mode and terminates the

test when it increments from -1 to 0.

Outputs

Servo voltage @ impedance:

0 to 2.5 Vrms @ 50 ý

Servo sine distortion (1.0 V out): < .3% THD, 3rd harmonic:

< -50 dB typical

Constant sine voltage
@ impedance:

1.2 Vrms @ 10 Ký

Normalized acceleration:

10 mV/g @ 50 ý
(both channels)

Data:

Acceleration:

Log ch 1,2 & avg.:

2 Vdc / decade

Difference, linear:

1.0 Vdc ± .01 Vdc / %
difference

Impedance:

50 ý

Frequency:

Log:

2 Vdc / decade

Impedance:

50 ý

Sweep/Pen lift logic:

TTL, low during sweep

Inputs

Reset, external:

TTL low or contact closure to ground

Shut down interlock:

TTL low or contact closure to ground

Program

Levels per program:

2 to 4 (2 displacement, 2 acceleration)

Program memory:

Non-volatile:

3 programs

Active:

1 program

Physical/environmental

Power:

110 ± 15 Vac or 220 ± 30 Vac, 50 / 60 Hz

Dimensions:

19 in. W x 12 in. D x 3.5 in. H

Weight:

5 lbs

Temperature:
Operating:

± 60 to + 100° F

Storage:

± 40 to + 130° F

Humidity:

5 to 90% RH

abworks Inc.

L

2950 airway ave.
a-16, costa mesa, ca 92626 (714) 549-1981

Frequency Generator

Range @ Resolution:

2. to 6553 Hz @ 0.1 Hz
or 4 to 10,000 Hz @ 0.2 Hz

1

Accuracy:

± .004%

Temp. stability:

± 100 ppm/°C

Display:

4 digit LED

Feedback Analysis

Acceleration:

Range:

0 to 99.9 g pk

Accuracy:

0.2 dB ± 1 LSD / 5-7000
1.0 dB ± 1 LSD / 2-10,000

Display:

3 digit LED

Displacement:

Range:

0 to 2.50 in. pk-pk
or 0 to 50.0 mm pk-pk

1

Accuracy:

0.2 dB ± 1 LSD / 5-7000
1.0 dB ± 1 LSD / 2-10,000

Display:

3 digit LED

Input channels / connector: 2 / BNC
Calibrated inputs:

10 or 100 mV/g

Variable inputs:

10 or 100 mV/g ± 20%

Accelerometer bias:

3 mA nom. (on-off)

Sweep, Logarithmic

Modes:

Manual, continuous or single sweep

2

Rate:

0.5 to 8 octaves / min.

Sweep speed resolution: 0.5 octaves / min.
Sweep cycle counter:

-999 to 9999 sweep cycles

3

Control Servo

Dynamic range:

70 dB min.

Control accuracy:

0.25 dB typical

Speed:

3 ranges, microprocessor optimized,
frequency dependent.

Open loop monitor:

Adjustable, gain sensitive

Output level monitor:

10 segment bar graph

SC-121 SPECIFICATIONS