Table 1: Physical dimensions of current sensors for individual device variants.
Variant Pxxx
Range
Variant Sxxx
Type
d
x
y
z
m
Type
d
x
y
z
m
[mm]
[g]
[A]
[mm]
[g]
JP3W
7
24
27
11
11
005
JC10F
10
23
50
26
45
015
JP5W
13
37
41
14
37
025
035
050
075
100
JC16F
16
30
55
31
75
150
JP6W
19
49
51
20
70
200
JC24F
24
45
75
34 150
250
300
JC36S-3 36
57
91
41 280
400
500
600
Variant
NOCT
has not current sensors nor current inputs.
2
Operating the Meter
2.1
Safety Requirements when Using SMC 144
When the device is being connected to the parts which are under dangerous voltage it is necessary to comply with
all the necessary measures to protect users and equipment against injury with electrical shock. It is recommended
to always use protective gloves.
The device must be operated by a person with all required qualifications for such work and this person must
know in detail the operation principles of the equipment listed in this description!
2.2
Preparation Prior to Measurement
Before measurement it is necessary to configure the instrument appropriately. This setting is always done by
PC with a standardly supplied program ENVIS.Daq
2.2.1
Configuring SMC 144 on a PC
Connect SMC 144 to a computer via RS-485 to USB converter or Ethernet. Switch on auxiliary voltage powering
the SMC 144. Supply voltage will be indicated by the LED PWR blinking green. Than the unit is ready to
be adjusted. We can now set-up a desired operation. This setting will erase all previously archived data in
internal memory of the instrument. So before writing new configuration to the device make sure to backup the
last measured archive.
Run the ENVIS.Daq. First, open the main window. Choose the type of communication interface and its
other related parameters. A connection form with typical parameters is shown in figure 2. For 10 seconds after
power-up, device can always communicate with fixed baud rate 9600 bps and is listening on address 250. Green
LED is fast blinking (once per 400 ms). If SMC 144 do not receive any command until the interval expires, port
is reconfigured to parameters previously set by user. SMC 144 is also listening on address set by user — if same
baud rate as default is set, it is possible to connect to the device immediately after power-up. Otherwise, user
has to wait 10 seconds before connecting with his own baud rate. End of start interval is indicated by slowly
blinking green LED (once per 2 s).
2
Before first use the ENVIS must be installed in the PC. Detailed description can be found in The ENVIS User Guide.
6
