13.2.2 Method 2: Providing Power Externally and Measuring with Amperemeter
Pin No.
Signal
Connection
Wire Color
(in supplied cabling)
1
24 V (24V_in)
Connect Pin 1 with Pin 2
brown
2
Current Loop +
Connect Pin 2 to "+" of battery/24 V DC power
source
white
3
Ground in (GND_in)
Connect Pin 3 to the appropriate connector of
your reading device/data logger, e.g. "return" or
"-" of an amperemeter.
Close loop by connecting also to "-" of battery.
blue
4
Current Loop -
Connect Pin 4 to the appropriate connector of
your reading device/amperemeter, e.g. "send"
or "+".
black
Table 19: Wiring for the BioProTT
TM
FlowTrack SL for loop check with external power
Tolerances for current measurement (range of amperemeter 0 - 20 mA DC) are as follows:
–
max. 1% + 5 digits within the range of > 50,000 mA
–
internal resistance < 10 Ohm
Figure 15: Schematics—Looking at Pins at Rear of either the Flow or the RSS socket
BioProTT™ FlowTrack SL
Page 42
Copyright em-tec GmbH
D101-704 BioProTT
TM
FlowTrack SL – User Manual – V 1.0
