gefran 600 Bedienungsanleitung Seite 32

1
152050 9640
50 / 0.05 A
4 30
Hole for 2.9 x 9
self-threading screws
25 ±1
• Twin setpoint application (ramp + hold + time expiration alarm)
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• CURRENT TRANSFORMER
2
5,5 27 5,5
1 2
4
8 8
38
5,50m
• ORDER CODE
PTC 7 x 25 5m
• RS232 / TTL interface for GEFRAN instrument configuration
Absolute alarm
Referred to current
Reverse alarm
Direct alarm
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15 • ACCESSORIES
These transformers are used to measure currents of 50 ÷ 60Hz from 25A to 600A
(nominal primary current). The peculiar characteristic of these transformers is the high
number of secondary turns. This provides a very low secondary current, suitable for an
electronic measurement circuit. The secondary current may be detected as voltage on a
resistor.
CODE Ip / Is
2
TA/152 025 25 / 0.05A
TA/152 050 50 / 0.05A
In
20
• PTC
TECHNICAL DATA
Mod. probe:
Cap material:
Temperature range:
PTC:
Response time:
Isolation:
Wire material:
Wire length:
N.B. RS232 interface for PC configuration is supplied with
the WINSTRUM programming software. Make connection
with instrument powered but with inputs and outputs
disconnected.
• ORDER CODE
WSK-0-0-0
16 • APPLICATIONS
AL
Setpoint profile
setpoint
32
Ø Secondary n OUTPUTS Ru
Wire
40 Ω
0.16 mm n = 500 1 - 2
1-2
80 Ω
0.18 mm n = 1000 1 - 2
1-2
• ORDER CODE
IN = 50Aac
COD. 330200
OUT = 50mAac
IN = 25Aac
COD. 330201
OUT = 50mAac
Ambient probe
Plastic (Ø 7 x 25mm)
-20...80°C
R 25°C = 1KΩ ±1% (KTY 81-110)
20sec (in still air)
100MΩ, 500Vd.c. between cap and terminals
Unipolar in PVC (12/0,18)
5,50m
Cable interface + CD Winstrum
Time (min. or sec.)
(*) Time set in
parameter Hy.n
Vu ACCURACY
2 Vac 2.0 %
4 Vac 1.0 %