Annex
11
gas-lab
Q1
Page 139
H706 Lower hint limit output
This hint draws attention to an error in the configuration of an analog output. The assigned
reading of an analog output falls below the lower benchmark, which is assigned to the
lower current limit. Probably the output range defined by the lower under parameter
’s limit
set smallerer than the actual measurement range of the output measure.
H710 Upper hint limit output
This hint draws attention to an error in the configuration of an analog output. The assigned
reading of an analog output falls below the upper benchmark, which is assigned to the
lower current limit. Probably the output range defined by the lower under parameter’s limit
set larger than the actual measurement range of the output measure.
H760 GQ calibrating
The hint begins and ends each time a calibration starts or ends. After a (re-)start of the
device, this status remains till the startup process is finished and the regular measurement
has started.
H800 Calibration lock open
An opening of the rotary switch called calibration switch (wich can be sealed) on the front
panel of the device is marked by this hint. Only if the calibration switch is open, it is
possible to:
-
import a new parameterisation into the
gas-net
computer
-
switch off the automatic measurement
-
switch gas paths
-
perform basic calibrations (3-point calibration)
The calibration switch should always be closed for safety reasons during normal
operation. To open a switch officially closed, the presence of an officially authorized
person may be required.