Table 4-20: Current Loop Output Calibration With Resistor - Teledyne T360 Operation Manual

Teledyne API Model T360/T360M Operation Manual
FROM ANALOG I/O CONFIGURATION MENU
DIAG ANALOG I / O CONFIGURATION
PREV NEXT
DIAG AIO AIN CALIBRATED: NO
SET> EDIT
Press SET> to select the analog output channel
to be configured:.
DIAG AIO CONC_OUT_2:CURR, NO CAL
< SET SET> EDIT
DIAG AIO CONC_OUT_2 RANGE: CURR
<SET SET> EDIT
DIAG AIO CONC_OUT_2 CALIBRATED: NO
< SET CAL
DIAG AIO AUTO CALIBRATING CONC_OUT_2
07272B DCN6552
To adjust the zero and span values of the current outputs, activate the ANALOG
I/O CONFIGURATION MENU (see Section 4.13.1), then press:
ENTR EXIT
EXIT
U100 UP10 UP DOWN DN10 D100
EXIT
EXIT
U100 UP10 UP DOWN DN10 D100
EXIT
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:

Table 4-20: Current Loop Output Calibration with Resistor

Voltage for 2-20 mA
Full scale
(measured across resistor)
0%
100%
The instrument attempt to automatically calibrate
the channel ... then beep.
DIAG AIO CONC_OUT_2 D/A/ CAL ERROR
DIAG AIO CONC_OUT_2 CURR-Z: 0 mV
U100 UP10 UP DOWN DN10 D100
DIAG AIO CONC_OUT_2 ZERO: 27 mV
DIAG AIO CONC_OUT_2 SPAN: 10000 mV
U100 UP10 UP DOWN DN10 D100
DIAG AIO CONC_OUT_2 ZERO: 9731 mV
DIAG AIO CONC_OUT_2 CALIBRATED: YES
< SET CAL
0.5 V
5.0 V
Operating Instructions
EXIT
ENTR EXIT
Increase or decrease the current
output by 100, 10 or 1 counts.
ENTR EXIT
The resulting change in output
voltage is displayed in the upper
Continue adjustments until the
correct current is measured with
the current meter.
ENTR EXIT
EXIT ignores the
new setting, ENTR
ENTR EXIT
EXIT
Voltage for 4-20 mA
(measured across resistor)
1.0 V
5.0 V
line.
accepts the new
setting.
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