Raytech TR-SPY Mark II and Raytech TR-Mark III Specifications

Rugged and lightweight instruments the Raytech TR-SPY Mark II Three Phase TTR (Transformer Turns Ratio) and Raytech TR-Mark III Three Phase TTR (Transformer Turns Ratio) automatically measure Turns Ratio, Voltage Ratio, Excitation Current, Phase Relationship, and Phase Displacement. Both units are fully automatic instruments that can perform precision laboratory measurements, as well as function extremely well in the field for routine maintenance testing.

Raytech TR-SPY Mark II and Raytech TR-Mark III Specifications: 


Test Voltage

User Selectable: 100, 40, 10, and 1VAC. 1A User Selectable: 100, 40, 10 and 1 VAC
L: 470 mm (18.5”)

W: 371 mm (14.6”)

H: 190 mm (7.5”)

L: 470 mm (18. 5″)

W: 371 mm (14.6″)

H: 190 mm (7.5″)

8.4 kg (18.5 lbs.) 8.2kg (18 lbs.)
Input Power
100…250 V AC, 50/60 Hz 100 to 250 VAC 50/60 Hz Auto ranging. Fuse: 2 Amp
USB 2.0 full speed (1 host/1 device) and 9 Pin RS232 serial 9 pin RS-232 serial / 25 pin standard centronics parallel
Memory Storage
Internally stores more than 10 000 test results internally stores more than 1,300 locations in memory (100 complete tests)
Panel Display
5.7’’ Color LCD with back lighting and touch screen LCD graphic with a back light
Front Panel
Sealed, Anodized Sealed, Piezo-electric actuation