Displaying Error Codes; Checking Response Time (T90); Instrument Settings; Combinations Of Latching And Acknowledgment Of - Dräger Polytron 5000 Série Mode D'emploi

4. Pull out the PCB unit.
5. Turn PCB unit over and pull off the sensor connector.
6. Unscrew the sensor.
7. Insert the sensor wires through the threaded port of the
enclosure.
WARNING
Explosion hazard!
The enclosure openings must be sealed to prevent ignition of
hazardous atmospheres in case of an ignition inside the
enclosure.
► Five threads must be engaged to ensure explosion proof
status.
8. Screw the sensor into the port and tighten with the correct
torque (min. 266 LB IN. / min. 30 Nm)
®
9. Polytron 5200 CAT-specific:
Twist the sensor wires together. If necessary, fit a cable tie
to keep the wires tight.
10. Plug the sensor connector back into socket.
Figure on fold-out page
G1
G2 socket designated CAT
G2 socket designated DSIR
11. Place PCB unit back into the enclosure.
12. Screw the lid back on until it is sealed (min. 62 ±17.7 LB
IN. / min. 7 ±2 Nm) and tighten set-screw.
13. Apply power to the instrument, if necessary.
 The warm-up phase starts.
 The maintenance signal on the 4-20mA interface
remains pending until the sensor is warmed-up.
Maximum warm-up time of a new sensor: see the
Instructions for Use for the sensor.
®
14. Polytron 5720 IR-specific:
If the settings of a replaced sensor are different from the
settings in the instrument, the display will toggle between
'Info' and '300' (configuration error), (see
"Troubleshooting", page 18).
15. Check calibration. If necessary, calibrate the instrument
(see "Calibration", page 15).
16. Check the installation requirements and instrument for SIL
status.
See sections "Explosion proof (Ex d) installation - without
Docking Station" through "Installation of sensors".

11.2 Displaying error codes

This function is not available for Polytron
®
Polytron 5310 IR.
Dräger Polytron
Sensor
PIR 7x00
®
Polytron 57x0 IR
DD/DQ, LC sensor
®
Polytron 5200 CAT
DSIR
®
Polytron 5310 IR
®
5200 CAT and
®
5000 Series
Error codes consist of a locater and a pair of numbers/letters,
separated by a dot (e.g. 16.10 for 'warm-up time 2')
There are 2 ways to display error codes.
● From measuring mode tap [UP] for more than 3 seconds.
● Select Diag - scan in the menu and tap [OK].
If no warnings or faults are available, OK is displayed.
If error codes are available, tap [DOWN] to scroll through
the error codes.
After the last error code OK is displayed.

11.3 Checking response time (t90)

1. Perform a span calibration and check the response time.
2. Compare the response time with the t90 values that are
indicated in the corresponding sensor data sheet.
CAUTION
Delayed response time at the gas detection control unit.
If the transmitter is connected to control units, the total
response time could be delayed. The entire measuring path
must be taken into account (e. g. latency of the control unit).
► Ensure that the required response time is kept.
12

Instrument settings

12.1 Combinations of latching and
acknowledgment of alarms
The following examples give an overview of relay
acknowledgment combinations.
Latching
(Manual relay reset)
Acknowledge- Relay reset possible at any time.
able
Non-acknowl- Relay reset not possible before alarm con-
edgeable dition cleared.
Latching and non-latching signals are not time-limited.
Latching signals stay active until they are acknowledged.
Non-latching signals stop as soon as the triggering condition
clears.

12.2 Relays

The instrument ships with all relays (A1, A2, FLT) configured
by default to normally energized. This provides a "fail-safe"
operation.
The relay labels (NO, COM, NC) represent the default state
(normally energized) of all relays while the instrument is
powered

12.2.1 Configuring relay A1 or A2

This function defines whether the alarm relay is energized
during normal operation or energized at an alarm condition.
Instrument settings en
Non-Latching
(Automatic relay
reset after alarm
condition cleared)