Metex SharkTX Multi-Parameter Transmitters - Manual (Page 80)

Flow - Output Menu - 4-20mA Output 7.14 Page 78
MULTI-PARAMETER TRANSMITTER USER’S MANUAL
Flow - Output Menu - 4-20mA Output 7.14
DOWN
DOWN
DOWN
DOWN
DOWN
DOWN
DOWN
DOWN
DOWN
DOWN
DOWN
UP DOWN
UP DOWN
DOWN
DOWN
UP DOWN
UP
NOTE
PRESS THE AND KEYS
TOGETHER TO GO IMMEDIATELY BACK TO
RUN MODE
DOWN
The TUNE fuction allows the user to
precisely adjust the 4-20 mA output to
compensate for any errors in the output
circuitry. Normally, fine tuning the 4-20mA
output is not necessary.
The make the adjustment, place an
accurate current meter in series with the
4-20 mA output, with the appropriate
loads connected. When the TUNE menu
is selected, the controller puts 20 mA out
the terminals. Use the or
keys to adjust the 20mA output to get
exactly 20.
The TUNE value can be adjusted over the
range from 0 to 1000, these are unitless
numbers used for tuning purposes only.
Or press the
key to highlight
the Y character
With "N" selected, pressing the
key will NOT store the selection, but
simply return to the OUTPUT Menu. This
function is useful if you wish to view the
current selection without making any
changes.
Then press the key to store the
selection and return to the OUTPUT menu
Not stored
Stored
DOWN
UP
DOWN
The example below shows the 4-20 mA set to 4mA = 20 and 20mA = 90.
The output would then span 4 to 20 mA for a flow swing of 20 to 90.
Note that the span can reversed, in that 4 mA can be set to a high flow
value and 20 mA can be set to a low flow value, effectively reversing the
control direction.
DOWN
RUN MODE
Press the key once
which will move the cursor
back to the RH side of the
display.
If you wish to change the setting, press the
key once which will move the cursor to the first
character of the value to be changed
DOWN
Press the key to accept the
setting and move to the next setting
UP Use the and
keys to change the setting DOWN
Press the key once
which will move the cursor
back to the RH side of the
display.
If you wish to change the setting, press the
key once which will move the cursor to the first
character of the value to be changed
DOWN
Press the key to accept the
setting and move to the next setting
UP Use the and
keys to change the setting DOWN
Press the key once
which will move the cursor
back to the RH side of the
display.
If you wish to change the setting, press the
key once which will move the cursor to the first
character of the value to be changed
DOWN
Press the key to accept the
setting and move to the next setting
UP Use the and
keys to change the setting DOWN
STORE? Y N
STORE? Y N
4-20mA PROC
4-20mA PROC
OUTPUT
CALIBRATION
DIAGNOSTICS
UTILITIES
SETUP
TOTAL 0
20mA TUNE 54 0 >
20mA TUNE 540 >
4-20mA PROC
4-20mA
20mA TUNE 51 2 >
4-20mA PROC
4-20mA PROC
20mA OUT 90.0 0 >
20mA OUT 90.00 >
20mA OUT 100.0 0 >
4-20mA PROC
4-20mA PROC
4-20mA PROC
4-20mA PROC
4-20mA PROC
4-20mA PROC
4mA OUT 20.00 >
4mA OUT 20.0 0 >
4mA OUT 0.0 0 >
20mA TUNE 512 >
20mA OUT 100.00 >
4-20mA PROC
4-20mA PROC
4mA OUT 0.00 >
4-20mA PROC
The Transmitter has a single 4-20mA output, electrically
isolated from the ground. The output can source current into a
maximum of 800 ohms. See Section 3.9 for wiring diagram.
The channel has a fully adjustable 4 & 20 mA output
adjustments. This will enable the operator to span the output
over the desired range.