Atec ESI-DT72A - Manual (Page 2)

FIRST CORE SECOND CORE THIRD CORE FOURTH CORE
OUTPUT
5
6
GRD
INPUT
GRD
1
2
3
4
11 STEPS 11 STEPS 11 STEPS 11 STEPS 11 STEPS 11 STEPS 10 STEPS
1.1
1.0
0
-0.1
SPECIFIED LINEARITY
AT 1kHz
TYPICAL LINEARITY DEVIATION
AT 1kHz
LINEARITY DEVIA
TION
IN PROPOR
TIONAL P
A R T S
LINEARITY DEVIATION
S E T T I N G
L I N E A R I T Y V E R S U S S E T T I N G
OUTPUT VOLTAGE
INPUT VOLTAGE – SETTING
10 -7 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 1 10 -10
10 -9
10 -8
10 -7
10 -6
INPUT IMPED
ANCE MAGNITUDE
IN OHMS
FREQUENCY IN KILOHERTZ
PHASE SHIFT VERSUS FREQUENCY
MAXIMUM PHASE SHIFT
F R E Q U E N C Y I N K I L O H E R T Z INPUT IMPED
ANCE PHASE ANGLE
IN DEGREES
1M Ω
100k Ω
10k Ω
1k Ω
0.01 0.1 1 10 100
400Hz
500H 100H
1500pF
0.05 0.1 1 10
1
0.1
0.01
0.001
MILLIRADIANS
SECONDS
100
10
1
0.2
1'
400Hz
0.01 0.1 1 10 100
90
0
+90
Model DT72A
D E C A D E R A T I O T R A N S F O R M E R S T A N D A R D
Characteristic DT72A Specifications
Frequency Range 50 to 20,000 Hz
Maximum rms Input Voltage 0.35f (f in Hz) or 350 volts, whichever is less.
Ratio Range
Maximum 1.111111
Minimum -0.0111111
Maximum Phase Shift Approx. 0.05 mrad/kHz for settings above 0.1
Resolution 0.00001% (0.1 ppm)
Maximum Input Current For best performance, no DC current should be permitted. DC input of 20 µA will decrease AC input voltagerating about 10%
and increase distortion slightly; 200 µA will cause near saturation of core and serious errors.
Terminal Linearity 50 Hz to 1 kHz: ±0.9 ppm (referenced to input) for settings 0.1 to 1.0
[0.9 (10 X setting)
1/2 + 0.01] ppm for settings 0 to 0.1
Above 1 kHz: multiply by f 2 in kHz
Below 50 Hz: Multiply by 50/f(Hz)
Maximum Effective Series R: approx. 5 ohms maximum
Output Impedance L: 30 µH
Input Impedance at 20 V and 400 Hz Approximately 500 K ohms minimum
Input Inductance Approximately 100 to 400 H depending on excitation.
Output Current 1 A maximum
Dimensions 19 in (48.3 cm) wide
5-1/4 in (13.3 cm) high
7.1 in (18 cm) deep
Weight 18 lbs. (8.1 kg) net
Standard Equipment
The model DT72A comes with a 7203 instruction manual.
Calibration & Technical Services
For warranty and remedial repair, calibration
services and spare parts, or for additional
information on TEGAM sales and service
offices around the world, contact us at
440-466-6100 (ph) or 440-466-6110 (fx).
Specifications
TEN TEGAM WAY • GENEVA, OHIO 44041
440-466-6100 • FAX 440-466-6110
www.tegam.com • e-mail: [email protected]
YOUR GLOBAL SOURCE FOR TEST
AND MEASUREMENT SOLUTIONS
®
This data sheet was current when it was produced. However, products are constantly being updated and improved. Because of this some differences may occur between
the descriptions herein and the current product. Prices and specifications may be changed without notice.