5. The package contains
-
АМ
4080 - 1 pcs.
-
Mounting kit - 1 pcs.
-
User manual - 1 pcs.
6. Manufacturer
Gineers Ltd
7 "Iskarsko shausse” blvd, TCE, building 4
1528 Sofia
Bulgaria
tel./fax (+359-2): 9758105
URL: http://www.gineers.com
e-mail: [email protected]
7. Fault Table
# Date
Fault
Description of the repairs
Signatu
re
Ammeter
АМ
4080
Series 4080
User Manual
АМ
4080 is digital measurement, fully programmable device from series 4080. It measures
current up to 10 AAC/ADC and can measure other current by connecting external shunt resistor or
current sensor. AM4080 can be directly connected to current transformer with maximum secondary
current of 10Aac. The device can be purchased with potential-free contacts for remote signalization if
measured current goes out of certain programmable limits (option “R”). AM4080 is designed to be
mounted on boards in control rooms of electrical substations.
1. Main technical parameters
- measured current – alternating/direct
- max input current - 10
А
AC/
А
DC (overload up to 10 times for 100ms)
- power supply – 55-270 VAC (80-390 VDC)
- input resistance – max 0.010
Ω
for 5
А
- display – super bright red, 4 digits, view area 75
х
22mm, purple filter
- measurement error - <1.2 % rdg + 2 digit
- single measurement cycle - < 1 s
- menu protection – yes/no
- user menu access code:
1342/
..........
- potential-free contacts number – 3 N.O. – yes/no
- max. contact voltage/current – 0.5 ADC @ 220 VDC
- power consumption - max 3 W
- work ambient temperature - 0
÷
50
°
C
- storage temperature - -50
÷
+90
°
C
-
влажност
на
въздуха
- 40
÷
90 %
- dimensions (H/W/D) –48/96/85 mm (w/o plugs attached)
и
48/96/95 mm (w/t plugs attached)
- mounting hole (H/W) – 43/90 mm, centered
- IP protection class – IP52 front (mounted on board), IP31 back
- weight – 220 g
2. AM4080 Work
AM4080 starts working immediately after power up as described:
Initialization Mode
-
Decimal point of least significant digit lights for
about 0.2s
-
Display shows moving “Gineers” - for about 3s.
-
Display goes blank, then shows the nominal
input current – for about 1.5s
-
The device enters normal work mode – shows
instant measured current, one of the LEDs
(low/normal/high) is lit, and if the device is with
“R”-option – one of the relay contacts is closed.
Work mode
The device shows the instant measured current (related to the primary side of the current
transformer, if one used) and continuously monitors and signals if its value is within certain programmed
limits (low/hi) via front panel LEDs and relay contacts. If the value is outside these limits, the display
blinks with frequency about 2-3Hz (blinking can be turned off via user menu). The device alarms for
value outside limits after time, set as number of consecutive measurements out of the limits. It is made
this way in order to avoid the possibility of false short-time signaling. Then, for entering back into
