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M400E Ozone Analyzer Operator’s Manual Advanced FEATURES of the M400E analyzer
An alternative method for setting up the Current Loop outputs is to connect a 250 ohm 1% resistor across the
current loop output in lieu of the current meter (see Figure 3-7 for pin assignments and diagram of the analog
output co
nnector). Using a voltmeter connected across the resistor follow the procedure above but adjust the
output for the following values:
V
+DC Gnd
Recording
Device
V IN +
V IN -
ANALYZER
V OUT +
V OUT -
250 Ω
Volt
Meter
Figure 7-7: Alternative Setup Using 250Ω Resistor for Checking Current Output Signal Levels
Table 7-8: Current Loop Output Check
% FS
Voltage across Resistor for
2-20 mA
Voltage across Resistor for
4-20 mA
0 0.5 VDC 1 VDC
100 5.0 5.0
04315 Rev. C1 107