gefran 600 Bedienungsanleitung Seite 32

1 2
152050 9640
50 / 0.05 A
4 30 4
Hole for 2.9 x 9
self-threading screws
25 ±1
• ORDER CODE
• RS232 / TTL interface for GEFRAN instrument configuration
• Twin setpoint application (ramp + hold + time expiration alarm)
15 • ACCESSORIES
• CURRENT TRANSFORMER
5,5 27 5,5
1 2
8 8
38 20
5,50m
PTC 7 x 25 5m
16 • APPLICATIONS
AL
Absolute alarm
Referred to current
setpoint
Reverse alarm
Direct alarm
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 Ø Secondary
2
TA/152 025 25 / 0.05A 0.16 mm
TA/152 050 50 / 0.05A 0.18 mm
In
• 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
COD. 1108200 Cable + Floppy
Setpoint profile
(*) Time set in
parameter Hy.n
32
n OUTPUTS Ru
Wire
40 Ω
n = 500 1 - 2
1-2
80 Ω
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
Time (min. or sec.)
Vu ACCURACY
2 Vac 2.0 %
4 Vac 1.0 %