Atec TR-Mark-III User Manual

Three Phase Turns Ratiometer

Sp e ci f i c at i o n S :

Mo d e l : tR-Ma R k iii

Si z e : L: 470mm (18.5”) W: 371mm (14.6”) H: 190mm (7.5”)
We i g h t : 9.5 kg (21 lbs.)
in p u t li n e po W e R : 100 to 250 VAC 47-63 Hz, auto ranging, Fuse: 2A
te S t Vo lta g e : User selectable 100, 40, 10, and 1Vac, 1A
pa n e l di S p l a y : Color LCD with back lighting and touch screen
fR o n t pa n e l : Sealed anodized
in t e R f a c e : 9 pin RS232 serial / 2 USB 1.1 (1 host, 1 device)
Me M o R y St o R a g e : Stores over 10,000 complete test results
Ra t i o Ra n g e : 0.8…16,000
op e R a t i n g te M p e R a t u R e -10° C to 60° C
St o R a g e te M p e R a t u R e -20° C to 70° C

TR - MaRk iii

Range Accuracy at 100 V or 40 V Accuracy 10 V Resolution

0.8 ... 2000 ±0.06% Rdg ±1 LSD ±0.15 % Rdg ±2 LSD 5 Digits
2001 ... 4000 ±0.1% Rdg ±1 LSD ±0.22% Rdg ±2 LSD 5 Digits
4001 ... 13000 ±0.3% Rdg ±1 LSD ±0.5% Rdg ±2 LSD 5 Digits
13000 ... 16000 ±0.4% Rdg ±1 LSD not specified 5 Digits

Current Accuracy Resolution

0 ... 1A ±0.001 A 0.1mA

Phase Angle Accuracy Resolution

±90 Degree ±0.05 Degree 0.01 Degree

fe a t u R e S :

• Automatic measurements of voltage, turns ratio, current, and phase displacement

• Easy one time hook up to the transformer

• Automatic test voltage range

• Displays deviation from a nominal ratio

• Simple touch screen operation

• Graphical tap changer display

• Tap changer interface

• Load on test object <0.05 VA

• Measures power transformers PTs and CTs

• Displays % error vs. name plate value

• Automatic phase vector detection

• Enhanced heavy-duty protection circuitry

• Emergency stop push button immediately turns off output

• Internal printer

• Data storage of over 10,000 measurements

• Data exchange with USB-key

• Mounted in rugged case for field-testing

• 5 Year standard warranty*

ca b l e Se t / ac c e S S o R i e S :

• H and X lead-set – 5m each

• H and X extensions – 10m each

• Safety ground, power cord

• External USB-key, USB and RS-232 Cable

• Instruction manual, printer paper (5 rolls)

• Cable bag

op t i o n a l it e M S :

External trigger for tap changer testing
Three phase supply for phase shifting and Zig-Zag transformers
TR-Mark IIIR – 19” 4U Rackmount version available

Specifications are subject to improvement at any time.

Raytech USA 90C Randall Avenue, Woodlyn, PA 19094 | Ph: [phone] | Toll Free: 888 484 3779 | Fx: [phone]

[e-mail] | www.raytechusa.com