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Instrument settings
11.2 Displaying error codes
This function is not available for Polytron 5200 CAT and
Polytron 5310 IR.
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
20
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.
1. Select A1 - ENERG - OFF / ON or A2 - ENERG - OFF /
2. Tap [OK]
3. Change the value
4. Confirm with [OK]
✓ The value is set and the instrument returns to the menu.
12.2.2 Setting fault relay warm-up 1
This function is used to set operation of the fault relay during
warm-up 1 to indicate the warm-up 1 state on the relay output.
Non-Latching
(Automatic relay
reset after alarm
condition cleared)
1. Select FAIL-FREQ-Stdy / PULS.
2. Tap [OK]
3. Change the value
4. Confirm with [OK]
✓ The value is set and the instrument returns to the menu.
Normally ener-
The relay contact is energized during nor-
gized
mal operation and changes if an alarm is
A1/A2 ENERG
triggered. At a loss of power this triggers an
- ON
alarm (fail-safe).
Energ. on
If an alarm is triggered, the relay contact is
alarm
energized.
A1/A2 ENERG
- OFF
ON.
The display toggles between the current value and the
menu item.
The value flashes (data entry mode)
► Tap [UP] for Energized on alarm (OFF)
► Tap [DOWN] for Normally energized (ON)
Static
The fault relay triggers a connected alarm
FAIL-FREQ-
indicator permanently.
Stdy
The orange LED is lit continuously.
Dynamic
The fault relay switches state for 9 seconds.
FAIL-FREQ-
Example:
PULS
– A horn is connected to fault relay output
Normally Open.
– Relays are configured as normally ener-
gized.
The horn and the orange LED of the
transmitter are 1 second active and 9
seconds in-active.
The display toggles between the current value and the
menu item
The value flashes (data entry mode)
► Tap [UP] for Static (Stdy)
► Tap [DOWN] for Dynamic (PULS)
Instructions for use
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Dräger Polytron 5000 Series
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