MTE PTS 400.3 PLUS - Meter Constants of Impulse Outputs

PTS 400.3 PLUS Operation Manual_R02 Page 239/306
Meter constants of impulse outputs
The following tables are showing the meter constant depending on used current input and internal
voltage range, current range.
Table 2-1: Direct current input 12A
Base constant: cpz
0
= 9000 [imp/Wh], CPZ
0
= 2.5 [imp/Ws]
Range dependent constant of PRS 600.3: cpz = cpz
0
** [imp/Wh]
CPZ = CPZ
0
** [imp/Ws]
cpz [imp/Wh]
CPZ [imp/Ws]
Un[V] ()
In [A] ()
65 (8)
130 (4)
260 (2)
520 (1)
0.0025 (4'800)
345'600'000
96'000
172'800'000
48'000
86'400'000
24'000
43'200'000
12'000
0.005 (2'400)
172'800'000
48'000
86'400'000
24'000
43'200'000
12'000
21'600'000
6'000
0.012 (1'000)
72'000'000
20'000
36'000'000
10'000
18'000'000
5'000
9'000'000
2'500
0.025 (480)
34'560'000
9'600
17'280'000
4'800
8'640'000
2'400
4'320'000
1'200
0.05 (240)
17'280'000
4'800
8'640'000
2'400
4'320'000
1'200
2'160'000
600
0.12 (100)
7'200'000
2'000
3'600'000
1'000
1'800'000
500
900'000
250
0.25 (48)
3'456'000
960
1'728'000
480
864'000
240
432'000
120
0.5 (24)
1'728'000
480
864'000
240
432'000
120
216'000
60
1.2 (10)
720'000
200
360'000
100
180'000
50
90'000
25
2.5 (4.8)
344'000
96
172'800
48
86'400
24
43'200
12
5 (2.4)
172'800
48
86'400
24
43'200
12
21'600
6
12 (1)
72'000
20
36'000
10
18'000
5
9'000
2.5
Mean frequency at the impulse output: f = CPZ * P, with CPZ = cpz/3600 [imp/Ws]
Maximum frequency (reached at Un, In): fmax = 46.8 kHz
The actual constants CPZx [imp/Ws] and the mean frequency FOutx, x = 1,2,3 of the three impulse
outputs are indicated at the PRS 600.3 in the Reference / setup / impulse output menu.
Note: If a range independent constant C/R is programmed by the user, he must take care, that the
resulting frequency fout stays below 46.8 kHz.
E.g. to test the full range up to 120A, 260V the range independent constant must be:
cpz ≤ 1’800 [imp/Wh] or with unit Wh/imp: cpz  0.0005555 [Wh/imp]
Above annotation is also applying for table 2-2 and 2-3