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AC/DC current transformer with energy meter functionality SIRAX BT7200 / BT7250
Safety instructions
The unobjectionable and hazard-free operation presupposes that the
safety instructions as well as Device Manual, electronically downloa-
dable via www.camillebauer.com, have been read and understood.
Please refer to our operating instructions for details. Downloadable
from our website www.camillebauer.com
The installation and commissioning should only be carried out by trained
personnel.
Check the following points before commissioning:
- that the connection wires are not damaged, and that they are not live during
wiring
- that the power flow direction and the phase rotation are correct
The instrument must be taken out of service if safe operation is no longer pos-
sible (e.g. visible damage). In this case, all the connections must be switched
off. The instrument must be returned to the factory or to an authorized service
dealer.
It is forbidden to open the housing and to make modifications to the instrument.
The instrument is not equipped with an integrated circuit breaker. During instal-
lation check that a labeled switch is installed and that it can easily be reached
by the operators.
The device is maintenance free. Unauthorized repair or alteration of the unit
invalidates the warranty.
Application area
The SIRAX BT7300 and BT7350 are current transformer with energy meter func-
tionality for monitoring 1-phase AC and DC systems up to a maximum current of
50 VAC/DC, and up to a maximum voltage of 800 VAC and 1000 VDC. The current
measurement is galvanically separated from the measured line. With the ability
to measure currents with different frequency ranges, the AC/DC current transfor-
mers are the ideal solution for monitoring photovoltaic systems, battery charging
systems, UPS systems, variable frequency drives.
Mounting and installation
Ensure a safe working environment during assembly, installation
and maintenance work. Disconnect the power supply of the
primary conductor and secure it against unintentional reconnec-
tion.
•
Mounting is via screw grooves for vertical and horizontal panel mounting or
via fastening elements for vertical and horizontal DIN rail mounting.
•
The installation of the devices is arbitrary.
•
Now connect the device according to the wiring diagram.
Electrical connections
Attention: Danger to life! Ensure that all leads are free of potential
when connecting them!
Please observe that the data on the type plate must be adhered to !
The national provisions have to be observed in the installation and
material selection of electric lines!
Vg
± 1000 / 100 VDC
± 800 / 80 VAC
LOAD
V
RS485
USB
Connection scheme BT7200 / BT7250
Technical data
Input
Type of measure
I
; V
; Watt, VAR; VA; V
Available measurands
rms
rms
Input range current
Input range voltage
800 V AC / 1000 V DC
Power supply
Absorption
Output
Output range
Sampling rate
Working frequency
Accuracy
Accuracy
(@25°C up to 400Hz)
Resolution
Temperature coefficient
Crest factor
Input impedence
Environmental conditions
Working temperature
Storage temperature
Humidity
Altitude
Safety
Overvoltage category
CATIII up to 600 V; CATII up to 1000 V
Isolation
Protection class
Mechanical properties
Housing material
Filling
Flammability
UL94 V-0, self-extinguishing, non-dripping, halogen-free
Weight
DIP switch
Permanent yellow (Power ON)
LED
Blinking yellow (communication)
Dimensions
Connections
Connections
Cross-sectional area
Torque
Standards
Adhered standards
DIP switch settings BT7200 / BT7250
Description
1
All settings from EEPROM
0
Set Address 1 - Baud 9600
1
Set Address 1 - Baud 38400
1
Configuration via software
The SIRAX BT7200 and BT7250 can be configured via the free programming software.
This is downloadable on our homepage. The programming instructions can be found in
the corresponding operating manuals for the products.
SIRAX BT7200
SIRAX BT7250
TRMS (monopolar) or DC
; I
; Freq; Cosφ; THD; ΣkW; +kW/h; -kW/h;
pk
pk
min/max of rms measurement
50 A AC/DC
80 V AC / 100 V DC
9 ... 30 V DC
< 1.3 W
RS485 (Modbus RTU)
11k Samples per Second
DC or 1 ... 400 Hz
Voltage, Current, Active Power: < 0.5% F.S.
Frequency: ± 0.1 Hz
Energy: ± 1% of reading
V
, I
: ± 5% F.S.
peak
peak
12 bit
< 200 ppm/°C
1.8 (on current measurement)
1 MΩ ±1%
-15 ... +65 °C
-40 ... +85 °C
10 ... 90 % (not condensing)
max 2000 m
CATIV up to 100 V
3 kV on bare wire for Current measurement;
4 kV for Voltage measurement
IP20
PTB
Epoxy Resins
80 g
2 pole
Permanent yellow (Power ON)
46.1 x 63 x 26.4 mm (without terminals)
Plug-in terminals 3.5 mm, 1x4 Pole and 2x2 Pole
1.5 mm
2
max 0.25 Nm
EN61000-6-4; EN64000-6-2; EN61010-1
2
0
0
1
3
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