TELEDYNE OLDHAM SIMTRONICS OLCT 80 d, User Manual

Page: 33 / 116

OLCT 80
GAS TRANSMITTER
USER MANUAL
NPO80GB
Revision F.1
27
Menu Description
ON Turn the main sensor on or off.
PRINCIPAL
•
Display
: display the reading from the main sensor.
• Primary
: display the reading from the main sensor and go to the 4-20 mA menu (see step
below).
• Secondary
: the reading is not displayed.
Note: if multiple sensors (main sensor, ANA1 sensor or ANA2 sensor) are configured as the
Primary
, the -4-20 mA output will use the current corresponding to the
Main sensor
.
4-20 mA Define the output current type (see the Note on the 4-20 mA current type on page 27).
• Norm
al: standard 4-20 mA signal.
•
Combined
: signal uses predefined values representing the alarm statuses of the 3 sensors. This
option is automatically selected if the Secondary option was defined in the previous step.
•
CAPEX: all-or-nothing signal indicating normal operation or a fault condition.
Coef none Defines the reading integration time (none, 5 seconds, 30 seconds, 1 minute, 2, 5, 10 or 15
minutes). The reading will be averaged over the given period.
Ovr Lock
• Yes
: verification is activated. If the device detects a gas concentration above 100% LEL, it will
display the word "
Sup
." The reading is blocked and the output signal is fixed at 23.2 mA. The
verification request is acknowledged using the infrared remote control. See the section on
Verification
on page 67.
• No
: verification is not activated.
Sure ??
•
ENTER
: confirm the changes made.
• ESC
: cancel the changes made and return to the
PROG
menu.
Note on the 4-20 mA current type
Normal mode
0 mA signal:no power.
1 mA signal: fault code.
2 mA signal: in calibration.
Signal from 4-20 mA: reading from the main channel (
Menu > PROG
).
Signal greater than 20 mA: line fault, out-of-range, verification.
Combined mode
1 mA : 1 faulty sensor.
2 mA : in stabilization or calibration.
4 mA : no fault and no alarm
8 mA : 1 sensor out of 3 in alarm #1
12 mA : 2 sensors out of 3 in alarm #1
16 mA : 3 sensors in alarm #1.
19 mA : 1 sensor out of 3 in alarm #2
22 mA : 1 sensor out-of-range or to be verified.
Note: an alarm always takes priority over a fault, unless the alarm is generated by the faulty channel.
CAPEX function
Comprises 2 statuses: Good or Bad .
0.1 mA : in fault, alarm, calibration or stabilization.
20 mA : no fault and no alarm