Teledyne T360, Operation Manual, Page: 145 / 358

Teledyne API Model T360/T360M Operation Manual Operating Instructions
143
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:
DIAG AIO CONC_OUT_2 SPAN: 10000 mV
U100 UP10 UP DOWN DN10 D100 ENTR EXIT
DIAG AIO AUTO CALIBRATING CONC_OUT_2
DIAG AIO AIN CALIBRATED: NO
SET> EDIT EXIT
DIAG ANALOG I / O CONFIGURATION
PREV NEXT ENTR EXIT
FROM ANALOG I/O CONFIGURATION MENU
DIAG AIO CONC_OUT_2 RANGE: CURR
<SET SET> EDIT EXIT
DIAG AIO CONC_OUT_2 CALIBRATED: NO
< SET CAL EXIT
DIAG AIO CONC_OUT_2:CURR, NO CAL
< SET SET> EDIT EXIT
Press SET> to select the analog output channel
to be configured:.
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.
DIAG AIO CONC_OUT_2 ZERO: 27 mV
U100 UP10 UP DOWN DN10 D100 ENTR EXIT
EXIT ignores the
new setting, ENTR
accepts the new
setting.
DIAG AIO CONC_OUT_2 CALIBRATED: YES
< SET CAL EXIT
DIAG AIO CONC_OUT_2 ZERO: 9731 mV
U100 UP10 UP DOWN DN10 D100 ENTR EXIT
DIAG AIO CONC_OUT_2 CURR-Z: 0 mV
U100 UP10 UP DOWN DN10 D100 ENTR EXIT
The instrument attempt to automatically calibrate
the channel … then beep.
DIAG AIO CONC_OUT_2 D/A/ CAL ERROR
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
Full scale
Voltage for 2-20 mA
(measured across resistor)
Voltage for 4-20 mA
(measured across resistor)
0% 0.5 V 1.0 V
100% 5.0 V 5.0 V
07272B DCN6552