User Manual

95-85321.4 17
Display
“YES EXT”
“YES CAL”
or
“NO EXT”
“NO CAL”
“4-20 CAL”
“NO”
“SET 4mA”
“CURRENT”
“SET 20mA”
“CURRENT”
“SET CAL”
“CURRENT”
Function
Option to allow external reset button
to be used for calibration in addition
to or instead of Cal Magnet. When
“Yes” is selected, the external reset
input functions exactly like the Cal
Magnet.
Option to select a Current Loop
Output other than factory calibrated
4 to 20 ma.
Set the current output zero level.
Set the current output full scale
level.
Set the current output during
calibration and setup modes.
Description/Action
•PressINCREASEorDECREASEtochangethe
setting.
•Whenthedesiredsettingisdisplayed,pressthe
SETUP/ACCEPT button to program the setting
into the transmitter. Factory default setting
is for no - external reset button is not used for
calibration.
•PresstheSETUP/ACCEPTbuttontobypassthe
4 to 20 ma calibration procedure and exit the
SETUP mode.
•PressDECREASEorINCREASEtochangethe
display to read “4-20 CAL” “YES.”
•PresstheSETUP/ACCEPTbuttontoprogramthe
current loop.
•PresstheINCREASEorDECREASEbuttonto
change the zero level current output (indicated on
the dc current meter).
•Whenthedesiredoutputisindicated,pressthe
SETUP/ACCEPT button to program the setting
into the transmitter.
•PresstheINCREASEorDECREASEbutton
to change the full scale current level output
(indicated on the dc current meter).
•Whenthedesiredoutputisindicated,pressthe
SETUP/ACCEPT button to program the setting
into the transmitter.
•PresstheINCREASEorDECREASEbutton
to change the calibration current level output
(indicated on the dc current meter).
•Whenthedesiredoutputisindicated,pressthe
SETUP/ACCEPT button to program the setting
into the transmitter.
IMPORTANT
A dc current meter capable of measuring 4 to 20 ma must be connected to the current loop output for the
following three current loop adjustments. This can be accomplished by connecting a dc ammeter in series
with the load or by connecting a digital dc voltmeter across a known load resistance and calculating the
current ow using the formula: current (I) = voltage/load resistance.
Do not press INCREASE or DECREASE pushbuttons during Current Loop Cal without a current meter or
voltmeter connected to the current loop output as described above. Doing so will result in an uncalibrated
current loop.
Table 6—Inniti Setup (Continued)