Description of the signal inputs/outputs
35
In
, select
=>
=>
Select the desired configuration
Press "ENTER" to confirm the selection
Calculation of output currents
The entire current range (0
– 20 mA or 4 – 20 mA) is available for
one measuring point. However, the current range is divided for two
measuring points. The value from measuring point 1 is displayed in
the lower half (0
– 10 mA or 4 – 12 mA) and the value for measuring
point 2 in the upper half (10
– 20 mA or 12 – 20 mA).
Measured value
Current =
x 20 mA
Maximum value
Measured value
Current =
x 16 mA + 4 mA
Maximum value
Measured value 1
Current 1 =
x 10 mA
Maximum value
Measured value 2
Current 2 =
x 10 mA + 10 mA
Maximum value
Measured value 1
Current 1 =
x 8 mA + 4 mA
Maximum value
Measured value 2
Current 2 =
x 8 mA + 12 mA
Maximum value
The current is set to 20 mA.
Measured value = the value shown on the display in the selected unit
Maximum value = the end value of the applied reagent (10 mg/l)
Serial interface RS232
Testomat 2000
®
PO4 can also be connected to a log printer via the
serial interface RS232 to enable the printout of measuring results and
error messages. Analyses can then be continuously logged. This
option is only possible in connection with the RS-232 interface card
for log printer, RS910 (Art. no. 270310).
▼▲
1 measuring point
0 - 20 mA
1 measuring point
4 - 20 mA
2 measuring points
0 - 20 mA
2 measuring points
4 - 20 mA
Measuring range
exceeded (e.g. >10 mg/l
How is the current
calculated for a
specific measured
value?
