Technical Manual
Page 30
CODEL
OPS.109
Issue : B
Rev. : 1
Date : 23/10/13
Doc. i/d : 0109/6
Ref. : 090028
When this is displayed the current output should be set to 0mA as measured with a calibrated current meter
across the analogue current loop terminals. Nothing else should be connected to these terminals when the
output is being set up. The value is adjusted using the two arrow keys; the
arrow will take the current output
up and the
arrow will take it down. Press the
ENTER
key when the correct output current is displayed on the
ammeter.
Zero milliamps should be set up; no matter what has been selected as the base of the current
output
.
In a similar manner as above the current output level should now be set to 20mA.
5 CONFIGURE O/P1
Set Span (4095)
20mA should be set up regardless of existing flow measurement.
7.9.4. Configure O/P2
The analogue current loop output (terminals 25 & 26), is set up from this mode. Press the
ENTER
key while this
display is shown to select it, then press the
and
keys to step through the available options. Press the
ENTER
key to enter each option and change the displayed parameter.
5 CONFIGURE O/P2
7.9.4.1. Base of Output
An origin of 0 or 4mA can be set for the current loop output. The
and
keys will toggle between these two
options. Press the
ENTER
key to enter the new value.
5 CONFIGURE O/P2
Output = 4 to 20mA
7.9.4.2. Averaging Time of the Output
Any of the four averaging stacks (seconds, minutes, hours or days) may be used for the analogue output. They
are selected by the
and
keys and entered using the
ENTER
key.
5 CONFIGURE O/P2
Average 01m
7.9.4.3. Output Units
The analogue output can represent the gas concentration in units of either m/sec or m
3
/sec. The
and
keys
will toggle between these two options. Press the
ENTER
key to enter the new value.
5 CONFIGURE O/P2
Units m/sec