10
Digital Transformer Ratiometer DTR
®
Model 8510
CHAPTER 3
SPECIFICATIONS
Reference Conditions:
23°C ± 5°C (30 to 50% RH) range. Add 25ppm /°C from -10° to
18°C and 28° to 50°C to all accuracy specifications. No external electrical or magnetic fields.
Output current ≤150 mA for VT/PT and ≤ 50mA for CT. Calibration cycle is 1 year.
3.1 DTR
®
8510 Specifications
DTR
®
8510
ELECTRICAL
Ratio Range (VT/PT)
Autoranging: 0.8000 to 8000:1
Accuracy (VT/PT)
Ratio Range
Accuracy (% of Reading)
0.8000 to 9.9999
± 0.2%
10.000 to 999.99
± 0.1%
1000.0 to 4999.9
± 0.2%
5000.0 to 8000.0
± 0.25%
Ratio Range (CT)
Autoranging: 0.8000 to 1000.0
Accuracy (CT)
Ratio Range
Accuracy (% of Reading)
0.8000 to 1000.0
± 0.5%
Excitation Signal
VT/PT Mode: 32Vrms max
CT Mode: Auto Level 0 to 1A, 0.1 to 4.5Vrms
Excitation Current
Display
Range: 0 to 1000mA
Accuracy: ± (2% of R 2mA)
Excitation Frequency
70Hz
Display
Dual line alpha-numeric LCD, 16x2 characters with contrast
adjustment and backlight control. Day/night visible.
Measurement Method
In accordance with IEEE Std C57.12.90™-2006
Power Source
Two 12V, 5x2, 1650mAH NiMH rechargeable battery packs
Battery Life
Up to 10 hrs of continuous operation. Low battery indication.
Battery Charger
Universal input (90 to 264Vrms input) smart recharger
Charging Time
<4 hrs
Data Storage
99 objects with 99 tests each
Date/ Time
Battery-backed, Real-time clock
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