Dräger Polytron 5200, Инструкция по эксплуатации

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16 Dräger Polytron 5200 / Dräger Polytron 53X0
Operation
3.7.1 -0- adj
Allows adjusting the zero reference point of the sensor, see
Section 4.1.1 on Page 19
3.7.2 Spn adj
Allows adjusting the sensitivity to match the known concentra-
tion of an applied calibration gas, see Section 4.1.2 on
Page 19.
3.7.3 A1 test / A2 test / Fail test
With these functions the status of the relays and LED can be
changed for test purposes (e.g. to check the function of alarm
devices connected to the relays). After exiting this function, the
status of the relays, if changed, will automatically return to their
original status.
3.7.4 A1 set
Configuring the low level alarm set point.
Leaving the magnet on the arrow will be interpreted as multiple
tapping.
An alarm set point of zero disables the alarm.
3.7.5 A2 set
Configuring the high level alarm set point.
Leaving the magnet on the arrow will be interpreted as multiple
tapping.
An alarm set point of zero disables the alarm.
Alarm hierarchy:
A2 overrides A1 on the LED and display. However, the A1 and
A2 relays operate independently, i.e. if A1 is acknowledgeable,
A2 is not~, and the gas concentration is such that it triggers A2:
Acknowledging will cause the A1 relay to release. However,
the red LED will still double blink as long as the A2 condition
continues to exists.
Alarm hysteresis:
In order to avoid chatter at an alarm threshold, a fixed hyster-
esis of 5% of full scale is programmed.
3.7.6 A1 ris or A1 fall
Configuring whether the alarm should be triggered by a rising
or falling gas concentration.
3.7.7 A2 ris or A2 fall
Configuring whether the alarm should be triggered by a rising
or falling gas concentration.
NOTICE
Sections 3.7.3 Relay test to 3.7.14 A2 energized are
only for users who have installed the relay option.
All other users continue with section 3.7.17. Cal set.
NOTICE
When the relays are activated, alarm devices will be
switched on.
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