CF4080 is digital measuring, fully programmable panel instruments
from series 4080. CF4080 measures signed value of the phase
angle cosine between their voltage and current inputs. CF4080
are designed to be mounted on boards in control rooms in electrical
substations.
user
manual
| - |
basic option - calculates and displays current cos(fi)
value |
| R |
free-potential relay contacts for remote signalization
are provided |
| C |
code-protected user menu |
| X |
user is not allowed to change device settings |
* - Every option can be ordered in any
combination with other options
| input voltage range |
0-120 VAC/ 0-250 VAC |
| input current range |
0-1 ААC/ 0-5 AAC/ 0-10 AAC |
| power supply |
55-250 VAC (80-350 VDC) |
| display |
super bright red, 4-digit, 76х25 mm visible, purple
filter |
| measurement error |
< 1.5 % rdg + 4 digit |
| measurement cycle |
< 0.5 s |
| relay contacts count |
up to 3 |
| power consumption |
< 3 W |
| work temperature |
from 0° C to 55° C |
| storage temperature |
from -50° C to +90° C |
| dimensions (H/W/D) |
48/96/85 mm or 96/96/85 mm (w/o plugs); 48/96/95 mm or 96/96/95 mm (with plugs) |
| mounting hole (H/W) |
43/90 mm or 90/90 mm quad, centered |
| protection class |
IP52 front, IP31 back |
| own weight |
320 g |
CF4080 continuously measures and displays the phase angle
cosine between its voltage and current input. If the values
of the input voltage and/or current are too small to provide
correct measurement of the cosine, a “----” is shown on
the display.
CF4080 can be connected to the current and voltage lines
either directly (if voltage and current values are in the
specified operating range) or by current and/or voltage
transformers. It is recommended that at least one transformer
is used (either current or voltage) as the current and voltage
inputs are not isolated.
- show cosine of phase angle sign (on/off)
- display blinking
- high level of cosine function
- low level of cosine function
- hysteresis
- relay contact switching delay