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Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments
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FEATURES
Microprocessor controlled
Self zero check and calibration check
Digital display of %input, ratio error and phase error
Manual and auto ranging modes
Test 5A and 1A CT with either 1A or 5A reference CT
RS 232C port and parallel port for printing
Built in real time clock
Parameter entry through keyboard

ELECTRICAL SPECIFICATIONS
TYPE SINGLE PHASE
OPRATING CURRENT I A / 5A, 0.5VA
AUXILIARY SUPPLY 110V/240V,AC 20%, 50/60Hz, 60VA.
ACCURACY 0.5% of reading 1 % of range
FREQUENCY 45Hz to 55Hz or 55Hz to 65Hz.
ERROR RANGES 20% (19.99% ratio error and (19.99cR* or 680mins.phase error))
2% (1.999% and (1.999cR or 68.0 mins.))
0.2% (1999ppm and (1999R or 6.80 mins.))
(cR = Centiradians, R = Microradians, ppm = Parts Per Million).
  RESOLUTION 0.05% of range
MEASURING TIME 7 seconds irrespective of signal level and error range.
OUTPUTS RS232C port & Parallel port (data in ASCII format).
INSULATION RESISTANCE Greater than 20 Mohms at 500V. DC.
DIELECTRIC STRENGTH 2kV RMS for 1 minute
OPERATING TEMP. 0C to 55C
STORAGE TEMP. -20C to 70C
HUMIDITY Upto 95% RH.

MECHANICAL SPECIFICATIONS
MODEL CTU
SIZE 180x320x450mm
WEIGHT (Appro.) 8.0Kgs

KEYBOARD CONTROLS
0 - 9 Numeric keys to enter values.
Decimal point.
ENT Enter key
RTC Enter date and time.
SR / VA Enter serial no. and burden.
PRINT Take printout of error readings.
SER Send data to serial port.
% / ACT Display input in percentage or actual value.
DEG/RAD Display phase error in minutes or centiradians.
ZERO Check auto zero.
CAL Test self calibration.

DISPLAYS AND INDICATIONS
4 digit LED display each to display input, ratio error and phase error.
LED indications for following quantities
  1) % Input
  2) Minutes and centiradians.
  3) Range for 20%, 2%, 0,2% and Auto
  4) Balance, overrange, zero and calibration.

PRINTING
Date, time, serial no., input (% or actual value), burden, %ratio error, & phase error
(minutes or centiradians).

Ordering information
1) Type 2) Model 3) Operating current 4)Operating Frequency 5)Auxiliary supply
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