AC Ratio Current & Voltage Meters UAF / UVF Specification

AC Ratio Current & Voltage Meters
UAF / UVF
Specification
Input range
UAF : 0-6A AC, 40-70Hz, suitable for 5A, 1A rating
UVF : 0-150V AC, 40-70HZ
Accuracy (23
±3°C)
(23±
0.2% fs, AC true RMS conversion
Digits & counts
4-1/2 digits -1999.9 counts maximum
Display
0.56” super rate LED
Introduction
Ratio setup
Model UAF & UVF series, are designed under micro base
with digital setup directly to PT or CT ratio and auto-
Digital setup in PT, CT ratio
Ratio range : 0.1~1999.9
Auto range in display reading to primary scale
scaling in display to primary reading.
The specifications of the units, truly a real power system
Response time
design, compliant ANSI-IEEE & DIN-IEC, VDE those
standards providing full protection for surge intrusion &
Input burden
unusual over input to assure safety operation.
Input over
Features
Digital setup for PT, CT ratio and auto range scale
AC true RMS conversion
Wide auxiliary power range AC / DC 30-250V
High over capability
High accuracy of 0.2%
Dielectric strength
ANSI/IEEE C37.90-1989, DIN-IEC 255-4 / 1977
IEC 801-4 / 1988
Impulse voltage
0-6A AC current input for CT ratio
0-150V AC voltage input for PT ratio
Ordering
Impulse voltage 1.2 x 50us 5KV
Oscillating wave 0.5us~100KHz 4KV & 1MHz~0.25ms 4KV
Stability
Temperature range -10 to +55°C
Maximum : < 50ppm / °C
Long term stability < 0.2% drift maximum per year
UAF
Power
Input
UAF
UVF
UAF : current input
3 x rating continuous
10 x rating 30 sec
50 x rating 3 sec
80 x rating 1 sec
UVF : Voltage input
Maximum continuous 750V rms, 1500V 30 sec
Surge test
Model & Ordering
Model
0.1 VA maximum
2.5KV AC rms 1 minute, all terminals to case
2KV AC rms 1 minute common voltage, between input to
power terminal
4-1/2 digits
Display with super rate LED
Model : UAF
UVF
Sample rate 1 of per sec typically
0 : AC 1A
1 : AC 5A
0 : AC 0-150V
0 : AC / DC 30-250V
1 : DC 24V ±20%
Operating condition
Temperature range -10 to 55°C,
0~99% RH non-condensed
Storage
Temperature range -25 to 70°C,
20~99% RH non-condensed
A uxiliar
w er
uxiliaryy po
pow
AC / DC 30-250V < 3 watts, (40-70Hz for AC)
AC Ratio Current & Voltage Meters
S1
S2
S3
S1
S2
UAF / UVF
S3
A
KV
Function key
Wiring
S1 : Previous status, back to main display
S2 : Numeric up 0~9
S3 : Enter or execution
: Keying Sx ( S1, S2, S3 )
Model : UAF / UVF
1
Ratio setting
z
z
z
PS00 S3 0000
1
1
1
1
S2 S3
S2 S3
S2 S3
S2 S3
1
1
1
5
6
AC / DC
Power
49mm
Enter password (1111) and enter ratio range
0 0 0 0. 0
97mm
S3
Write ratio
N1
S2 S3
N2
N3
S2 S3 S2 S3
Example
Ratio = 75
= 360
= 1200
= 205.5
= 1600.3
z
4
-
Dimension
Write password ( 1111)
1
z
3
Input
Enter password
S3
2
+
0
0
1
0
1
0
3
2
2
6
7
6
0
0
0
N4
N5
S2 S3
S2 S3
5
0
0
5
0
Enter ratio and return to main display
0
0
0
5
3
7mm
Slide Bracket
5mm
Max. 106mm
Cut out
S2 S1
92mm+1
45mm