Dräger PEX 3000, Руководство пользователя, Страница: 35 / 100

Operation
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Dräger PEX 3000
4.3.1 Information on the display
In the measuring mode, the two-digit display shows the currently measured
concentration in %LEL (0 to 99 or 0.0 to 9.9 %LEL).
Calibration and maintenance
If the calibration or maintenance menu is entered, this is indicated by a
displayed point (bottom right) flashing with approx. 1 Hz.
Faults
Faulty states are indicated by alternatively showing two horizontal lines and the
current error code (E0 through E8).
Turn-on behaviour
All 14 LED segments and both points are activated for 5 seconds directly after
turning on. This is a lamp test to make sure that the LED segments are
functioning. Then, the display shows two horizontal lines and the measured
value for approx. one minute before it switches to measuring mode. During this
time the calibration and maintenance menus cannot be accessed.
41490
Normal operation (Measuring Mode)
displaying values between 0 and 99 resp. 0 and 9.9
Signal output 4 to 20 mA
If there is no key activated within 4 minutes in an arbitrary state the transmitter will automatically switch-over to the normal
operation without saving any data.
SL
Test output 4-20 mA
Fault
Display shows E0 to E8
Signal output 1 mA
if the detected
fault is removed
if a fault
is detected
long
(>3 s)
short (>1 s and <3 s)
CL
Calibration 4-20 mA
CU
Adjust sensor current
dP
Set Decimal point
So
Software-Version
Keys
▲ + ▼
Keys
▲ + ▼
Tasten
▲ + ▼
Keys
▲ + ▼
Keys
▲ + ▼
Signal output
4.0 mA
Signal output
4.0 mA
Signal output
3.4 mA
Signal output
3.4 mA
Signal output
3.4 mA
Set signal output
to X mA
Adjustment
signal output
Adjustment of
sensor current
Switch-on/off
decimal point
Display
software version
Maintenance Menu
ZE
Calibration
Zero Point
SP
Calibration
Span
Keys
▲ + ▼
Key
▼ M
Keys
▲ + ▼
Signal output
3.4 mA
Signal output
3.4 mA
Adjustment of
zero point
Adjustment of
span
Calibration Menu
▲
▲
▲
▲
▲
▼
▲
▼
▲
▼
▼
▼