SICK MCS100E User Manual

Operation
72 MCS100E Operating Instructions 8009504/VYWA7/V3-1/2018-01 © SICK AG
Subject to change without notice
O
2
menu field
This menu defines the calibration of the O
2
sensor.
Span gas sampling is performed either manually from this menu or automatically via the
calibration program Specialist: System edit: Zero/Calib/Purge/Other programs 16 (Flag 16
for component 16).
Calibration can be interrupted by either <ESC> or resetting the flag or by interrupting the
calibration program.
During calibration, a message indicates for how long the O
2
signal still has to be stable. The
actual O
2
values are displayed continuously.
In case of a malfunction during calibration a corresponding error message is generated.
The O
2
calibration data are stored in an individual file (SNxxx.O2C).
The changes performed become active after the next calibration.
Due to the measurement principle and procedure it is not possible to calibrate the O
2
sensor to “0”. Therefore, instead of zero gas, a gas with known content of O
2
(usually
instrument air with 20.95 percent by volume O
2
) is fed for calibration.
From this menu, the specifications in the menu “Main Menu: Diagnosis and Main Menu:
Configuration: Span gases are derived.
Settings
Temperature high Nominal temperature, as set (from Specialist: System edit: Temperatures)
Analog In low..high [mV] Scales the 12 bit analog input: Example: -250 mV .. +250 mV
Span gas 1 and 2 [%] Enter span gas concentration in %
Span gas 1: High concentration
Span gas 2: Low concentration
Example: 20.95 .. 2.1.
Span gas 1 and 2 [mV] Display span gas 1 and 2 in mV,
values and tolerance (e.g. ±0.25) can here be entered manually.
Example: 0.00 .. 47.00 (±0.25)
Line constant [mV] Line constant as calculated upon calibration. Value (-25 .. 10). Can also be
entered manually.
Example: 0
Steepness [mV] Steepness as calculated during calibration. Value (35 .. 55). Can also be
entered manually. Example: 47
Actual [digit] [mV] [%] Actual value in digits, mV, %
Relay for span gas 1 The relays that are to be set resp. reset (-) upon sampling of span gas 1 can
be entered here.
Relay for span gas 2 The relays that are to be set resp. reset (-) upon sampling of span gas 2 can
be entered here.
Time Stability, Timeout Time stability: 120 (example)
The measured value must remain constant for minimum this time
(120 sec. in the example), otherwise the calibration will start from the
beginning.
Time timeout: 900 (example)
If no stable measured value is obtained within this time (900 sec. in the
example), then the calibration is terminated and an error message (ER18)
is displayed.
Start CALIB with 1 point <ENTER> starts calibration with 1 point.
If calibration was successful, a prompt is displayed “Accept?”. When the
answer is YES, then line constant and steepness are calculated.
If calibration was not successful, then the value will be accepted anyway
but an error message (ER18) is displayed.
In case of a timeout the value is not accepted and an error message (ER18)
is displayed.
Start CALIB with 2 points The same as for point 1, but the 2
nd
test gas follows after the 1
st
test gas.
Set default values “Yes“: Default values are set.

SICK MCS100E Specifications

General

Brand	SICK
Model	MCS100E
Category	Measuring Instruments
Language	English