10 | Appendix: Technical data
D-LX 201/721
93
10 Appendix: Technical data
10.1 Devices with plastic housing (P2)
Types
D-LX bbb ccc-dd/
P2
/ffff/ggg
Dimensions
Approx. 80 x 80 x 250
mm (incl. purge air con-
nection)
Approx. 80 x 80 x 175
mm (no purge air con-
nection)
Weight (without cable) Approx. 0.9 kg
Ambient temperature -40 to +85 °C
Humidity ≤ 95 % relative humidity, non-condensing
Mode Intermittent operation, continuous operation
Flame Failure Detection Time
(FFDT)
1 sec (2 sec, 3 sec and 5 sec on request)
(5 sec
not available for types D-LX *** ***-H*,
D-LX ******-I* and D-LX *** ***-J*)
Electrical connection Cable 12 x 0.5 mm² (AWG 20) with complete
screening; for cable lengths see section 5.2.1
Connecting cable [}33]
Housing Polyamide/polycarbonate, fire resistant as per
UL94 V0, blue
Protection rating (as per EN 60529) IP 66/68 (corresponds to NEMA 6)
IP 65 (corresponds to NEMA 4x) for /MP3 ver-
sion
Operating voltage 24 V ±20 %
Power consumption approx. 5 W
Protection F1= 0.5 A delayed action, MST 250
F2= 0.5 A delayed action, MST 250
Analogue output 0/4 ... 20 mA Load max. 750 Ω
Flame contact Normally open contact; active when flame ON
Ready for operation contact Normally open contact; active when no fault
(series connection with flame contact as a third
switch-off path possible)
Switching capacity of the relay con-
tacts
min: 10 mA 10 V
max: 0.5 A 24 V , with spark suppression
Ranges 2 (A and B)
Range selection (B) 24 V ±20%, I ~ 6 mA
Table10.1: Specifications of the basic device
The flame monitor is constructed with potential separation between the supply voltage
(24 V
) and the device's internal voltage. The analogue output is galvanically isolated
with the device's internal voltage.
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