Figure 4-28: Analog Output - Zero And Span Value Adjustment For Current Outputs; Table 4-13: Current Loop Output Calibration With Resistor - Teledyne T100 Instruction Manual

Teledyne ML - T100 UV Fluorescence SO2 Analyzer
DIAG ANALOG I / O CONFIGURATION
PREV NEXT ENTR
DIAG AIO AIN A/C FREQUENCY: 60 HZ
SET> EDIT
DIAG AIO AIN CALIBRATED: NO
SET> EDIT
DIAG AIO AOUT CALIBRATED: NO
< SET SET> CAL
Press SET> to select the analog output channel
to be configured:. Then press EDIT to continue
DIAG AIO CONC_OUT_CURR, NO CAL
< SET SET> EDIT
DIAG AIO CONC_OUT_2 RANGE: CURR
<SET SET> EDIT
Figure 4-28:
If a current meter is not available, an alternative method for calibrating the current loop outputs is to connect a
250  1% resistor across the current loop output. Using a voltmeter, connected across the resistor, follow the
procedure above but adjust the output to the following values:
FULL SCALE
0%
100%
To adjust the zero and span values of the current outputs, activate the ANALOG I/O
CONFIGURATION MENU from the DIAG Menu (refer to Figure 4-17), then press:
DIAG AIO
< SET
EXIT
DIAG AIO
U100
EXIT
DIAG AIO
U100 UP10 UP DOWN DN10 D100
EXIT
DIAG AIO
EXIT
U100 UP10 UP DOWN DN10
DIAG AIO
U100 UP10 UP DOWN DN10 D100
EXIT
DIAG AIO
< SET
EXIT
Analog Output – Zero and Span Value Adjustment for Current Outputs

Table 4-13: Current Loop Output Calibration with Resistor

VOLTAGE FOR 2-20 MA
(MEASURED ACROSS
RESISTOR)
0.5 V
5.0 V
CONC_OUT_2 CALIBRATED: NO
CAL
CONC_OUT_2 ZERO: 0 mV
UP10 UP DOWN DN10 D100 ENTR EXIT
EXAMPLE
CONC_OUT_2 ZERO: 27 mV
ENTR EXIT
CONC_OUT_2 SPAN: 10000 mV
D100 ENTR EXIT
EXAMPLE
CONC_OUT_2 ZERO: 9731 mV
ENTR EXIT
CONC_OUT_2 CALIBRATED: YES
CAL
VOLTAGE FOR 4-20 MA
(MEASURED ACROSS RESISTOR)
Operating Instructions
EXIT
Increase or decrease the current
output by 100, 10 or 1 counts. The
resulting change in output voltage is
displayed in the upper line.
Continue adjustments until the correct
current is measured with the current
meter.
ENTR returns
to the previous
menu.
EXIT ignores the
new setting, ENTR
accepts the new
setting.
EXIT
1.0 V
5.0 V
115