gefran 1600 Manuel D'utilisation page 32

Lets you custom correct reading of the main input by setting four values: A1, B1, A2, B2.
This function is enabled by setting "Sens" +8 code ("Hrd" menu).
Example: Sens = 1+8 = 9 for RTD probe with input correction.
The scale can be reversed if this function is applied to linear scales (50mv, 10V, 20mA, Pot).
The four values are set on the "Lin" menu as follows: A1 = St100, B1 = St01, A2 = St02, B2 = St03. Setting is limited to the defined scale ("LoS"
... "HiS" on "InP" menu).
The offset function ("oFt" parameter on "InP" menu) remains enabled.
Limits:
B1 always greater than A1;
B1-A1 at least 25% of full scale of selected probe.
Example:
Sens = 9, TyPE = 0 (Pt100 natural scale -200...+600), dPS = 0
LoS = 0, HiS = 400, oFt = 0
Reference point on real curve:
Corresponding points on corrected curve: A2 = St02 = 120, B2 = St03 = 220
4
1 2
152050 9640
50 / 0.05 A
Hole for 2.9 x 9 self-threading
screws
CODE Ip / Is Ø Secondary
TA/152 025 25 / 0.05A 0.16 mm
TA/152 050 50 / 0.05A 0.18 mm
• RS232 interface for instrument configuration
16 • MAIN INPUT CORRECTION FUNCTION
A1 = St00 = 50, B1 = St01 = 350 (B1-A1 = 300, greater than 25% of 800)
Indication
400
B2=220
170
A2 =120
A1=50
17 • ACCESSORIES
• CURRENT TRANSFORMER
30 4
n OUTPUTS Ru
Wire
40 Ω
n = 500 1 - 2
1-2
80 Ω
n = 1000 1 - 2
1-2
Without correction
200 B1=350 400
5,5 27 5,5 2
1 2
In
8 8
38 20
Vu ACCURACY
2 Vac 2.0 %
4 Vac 1.0 %
N.B.: RS232 interface for PC configuration is
supplied with configuration software.
The digital communication connection must be
executed with unit ON and inputs/outputs not
connected.
• ORDER CODE
COD. 1108200
32
With correction
Input
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.
• ORDER CODE
IN = 50Aac
COD. 330200
OUT = 50mAac
IN = 25Aac
COD. 330201
OUT = 50mAac
Cable + Floppy