Specifications, Displays – Atec AEMC-DTR-8500 User Manual
Page 3
Digital Transformer Ratiometer DTR
®
Model 8500 (pdf)
08/02
Technical Assistance (800) 343-1391
of 5
MODEL
DTR
®
8500
ELECTRICAL
Ratio Range
Auto-Ranging, 0.8000 to 1500.0:1
Accuracy*
Ratio <10 to 1: ±0.2% of Reading
Ratio
≤
10 to 1000 to 1: ±0.1% of Reading
Ratio >1000 to 1: ±0.2% of Reading
Excitation Signal
PT/VT Mode: 44Vrms maximum
CT Mode: 0 to 1A Auto Level, 0.1 to 5Vrms
Excitation Current Display
Range: 0 to 1000mA; Accuracy: ±2% of Reading ± 2mA
Excitation Frequency
70Hz
Display
LCD Character, 20 x 2, large format, LED backlight, day/night visible
Measurement Method
In accordance with ANSI/IEEE C57.12.90
Power Source
Dual operation; rechargeable NiCD battery & 115/230V, 50/60Hz line supply.
DTR® may be changed from 115/230V by internal switch at any time. Units available with factory presetting of 115 or 230V.
Batteries
12V, 5 x 2 NiCD packs, 1300mAH, Panasonic P-130SCR or equivalent
Battery Life
Up to 10 hrs continuous operation. May be used while recharging. Low battery LCD indication.
Charging Time
14 hrs typical, C/10 rate
Line Fuse
115V: 1.0A, 5 x 20mm, slow acting
230V: 0.5A, 5 x 20mm, slow acting
Displayed Measurements
Turns ratio; RMS excitation current; polarity
Displayed Messages
Incorrect lead connections; H/X reversal (accidental step-up misconnection);
Short (excess excitation current); Open circuits; Circuit continuity & low battery
MECHANICAL
Connections
Cannon
®
XLR connectors and large color-coded industrial clips
Leads
15 ft, H x X color-coded, in carrying bag
Display
Dual line alpha-numeric 3.875 x 0.875" with contrast adjustment and backlight
Operating Temperature
32° to 122°F (0° to 50°C), 0 to 90% RH (without condensation)
Case
Heavy duty structural polypropylene (yellow)
Dimensions
13 x 12 x 6" (330 x 305 x 152mm)
Weight
14 lb (6.4kg)
Specifications
Simple concise operation - clear informative data displays
Selected mode indication
Automatically self-calibrates with every use
Continuity test option selected
Indicates possible shorts in windings
Automatically detects and displays improper
cable connections
Displays ratio and excitation current