Dräger PIR 7000 Notice D'utilisation page 19

Terminating the calibration
Action Status Indicator
Put the magnetic yellow flashes quickly
wand on the » 0 « (for approx. 2 sec.)
mark for zero-point
calibration or on the
» S « mark for span
calibration and hold it
there.
green and yellow are
on
Remove the mag- green/yellow flash
netic wand. alternately and slowly
The gas transmitter automatically terminates the calibration, then switches back to normal
operation (green signal light on).
After cancelling the calibration process or after exceeding the timeout value, shut down gas
z
supply and remove the gas supply accessories used in the calibration process, if necessary.
Configuration of the gas transmitter
To individually configure a device with the standard configuration, use a PC and the PC soft-
ware Dräger CC Vision GDS (refer to the Technical Handbook).
In delivery state, the following configuration is set (provided that this is not a built-to-order
unit):
Configuration:
Conversion table % LEL
Measured gas
Unit
measuring range 0 ... 100 % LEL
Calibration gas
Unit
Calibration gas concentration
Maintenance signal
Fault signal
Beam block warning (inactive)
Output Signal Meaning
maintenance Device has detected an opera-
signal tor cancellation.
maintenance Device acknowledges the ter-
signal mination.
maintenance The calibration is cancelled
signal without saving the values.
Dräger PIR 7000
Type 334 Type 340 PIR 7200
Category 1
based on NIOSH
methane propane carbon dioxide
% LEL % LEL
0 ... 100 % LEL 0 ... 10 % vol.
methane propane carbon dioxide
% LEL % LEL
50 % LEL
3 mA
<1.2 mA
2 mA
Fault – Cause – Remedy
The yellow status light and an analogue output signal of < 1.2 mA (default setting) are used to
indicate faults or errors of the gas transmitter. To read out detailed error information, you can
use a PC and the Dräger CC-Vision GDS PC software (see Technical Handbook) or a manual
controller made by HART
4-20 mA
signal output
<1.2 mA
<1.2 mA
<1.2 mA
<1.2 mA or 0 mA
Dräger
– – –
Should the described measures fail to clear the fault, the cause could be a serious device
error, which means that you will have to contact the Service of Dräger to solve the problem.
% vol.
How to Dispose of the Device
Since August 2005, regulations concerning the disposal of electrical and electronic
% vol.
devices have been implemented throughout the entire European Union; these regula-
4 % vol.
tions are specified in the Directive 2002/96/EC of the European Parliament and in
national laws relating to this device.
Special collection and recycling possibilities have been established for private households.
However, since the device has not been registered for use in private households, it cannot be
disposed of as special household waste. Therefore, you should send it to your national Dräger
distribution organisation for disposal, which you can contact for further information.
®
.
Fault Cause
beam block Either beam
path blocked or
optical surfaces
contaminated.
calibration errors Calibration
incomplete or
faulty.
Measuring range far Either beam
below tolerance. path blocked,
optical surfaces
contaminated, or
zero-point has
drifted.
error in 4 to 20 mA Analogue signal
signal transmission cir-
cuitry is faulty.
www.norrscope.com
Remedy
– Check beam path for con-
tamination.
– Clean optical surfaces.
– Check accessories for cor-
rect assembly and damag-
es.
– Carry out zero-point and
span calibration.
– Check beam path for con-
tamination.
– Clean optical surfaces.
– Check accessories for cor-
rect assembly and damag-
es.
– Carry out zero-point and
span calibration.
– Check for power interrup-
tions or too high resistance.
19