Hole for 2.9 x 9 self-threading
screws
• CURRENT TRANSFORMER
17 • 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 Ø Secondary n OUTPUTS Ru Vu ACCURACY
Wire
TA/152 025 25 / 0.05A 0.16 mm n
1-2
= 500 1 - 2 40 Ω 2 Vac 2.0 %
TA/152 050 50 / 0.05A 0.18 mm n
1-2
= 1000 1 - 2 80 Ω 4 Vac 1.0 %
IN = 25Aac
OUT = 50mAac
COD. 330200
IN = 50Aac
OUT = 50mAac
COD. 330201
• ORDER CODE
• RS232 interface for instrument configuration
WSK - 0 - 0 - 0
Interface Cable +
CD Winstrum
• ORDER CODE
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.
16 • MAIN INPUT CORRECTION FUNCTION
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: A1 = St00 = 50, B1 = St01 = 350 (B1-A1 = 300, greater than 25% of 800)
Corresponding points on corrected curve: A2 = St02 = 120, B2 = St03 = 220
A1=50 200 B1=350 400
With correction
Without correction
Indication
Input
400
B2=220
170
A2 =120
14
80080D_MHW_1600-1800_0308_ENG
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