UV Sensor "UV-Arc"UV sensor for detection of electric arcs between contact wires and pantographs
1/3General Features

The “UV-Arc” is a G3/4'' male threaded waterproof UV sensor for detection of electricarcs between overhead contact wires and pantograph. The sensor measures the intensity
and the length of a UV arc event and is used to indicate the quality of the contact between
a pantograph and the contact wire. This allows a location of defects at the wire within arail network. It complies with EN 50317. The UV-Arc sensor contains a very sensitivephotodiode with an additional filter to suppress solar UV radiation. The time constant is
30µs and is adjusted to the typical arc length.
The sensor provide a high EMC safety and is configured with a cable according to the fire protection requirements inrail vehicles subject to the EN 45545 standard.

general Specifications
Fixed Specifications Parameter

Value

Dimensions

Please refer to drawing on page 2.

Field of view

Please refer to graph on page 2.

WeightTemperature coefficient (30 to 65°C)

195 g
0.05 to 0.075%/K

Operating temperature-20 to +80˚C

Storage temperature-40 to +80˚CHumidity
Time constantSpectral sensitivitsy
Measuring range< 80%, non condensing
30µs +/-20% - other time constants on request, device has 1st order low
pass characteristics
UVC
400nW/cm2 to 400µW/cm2

sg lux GmbH | Richard-Willstätter-Str. 8 | D–12489 Berlin | Tel. +49 30 5301 5211 | welcome@sglux.de | www.sglux.deRev. 5.2 Due to our strive for continuous improvement, specifications are subject to change within our PCN policy according to JESD46C.

UV Sensor "UV-Arc"UV sensor for detection of electric arcs between contact wires and pantographs

signal output Specifications

Signal Output 0 to 5 V
Supply voltage
Current consumption
Connections

0 to 5V voltage output proportional to the irradiance
7.5 to 24 VDC (0 to 5V output)< 30mA
cable & gland according to EN 45545: wires: V+=1, GND=2, Vout=3,shield=silver, 2m cable length, other lengths available (max. 20m)

Dark offset voltage< 3 mV

Measurement range

3 orders of magnitude

Signal Output 4 to 20 mA
Supply voltage
Current consumptionConnections
Measurement range
Sensor compliance voltage
Max. loop resistanceoffset2/3

4 to 20mA current loop for PLC controllers - The current is proportional tothe irradiance.
24 VDC +/-10% (down to 12V possible if compliance voltage and loop
resistance is considered)=signal out
cable & gland according to EN 45545: wires: V+=1, GND=2, shield=silver,
2m cable length, other lengths available (max. 20m)
3 orders of magnitude
8.5 V
645 Ohm @ 24V and 145 Ohm @12V
4 mA +/- 0.01 mA

sg lux GmbH | Richard-Willstätter-Str. 8 | D–12489 Berlin | Tel. +49 30 5301 5211 | welcome@sglux.de | www.sglux.de
Rev. 5.2 Due to our strive for continuous improvement, specifications are subject to change within our PCN policy according to JESD46C.

UV Sensor "UV-Arc"UV sensor for detection of electric arcs between contact wires and pantographs
3/3

Field of View

Drawing (values in mm)
77.5
5328.5

wrenchwidth 26

Ø23.5

DIN ISO
228 G3/4

Ø31Ø1520148

Ø31

ANALOG CABLE

24.5

window view66
5328.5

wrenchwidth 26Ø23.5DIN ISO
228 G3/4

Ø3124.5
2

Ø1520
148

Ø31

ANALOG PLUG

window view1245

3connector view
5 pin M 12 x 1
RSFM5plug connection
5 pin M 12 x 1e.g. Lumberg PRSFM 5473

Ø31

Ø15

20
14

Ø23.5

DIN ISO
228 G3/4

Ø318wrench
width 26

28.5

DIGITALsg lux GmbH | Richard-Willstätter-Str. 8 | D–12489 Berlin | Tel. +49 30 5301 5211 | welcome@sglux.de | www.sglux.deRev. 5.2 Due to our strive for continuous improvement, specifications are subject to change within our PCN policy according to JESD46C.
44.5

window viewSensor Probes Overview
laboratory & experiments
UV-Surface
Universal radiometric UV sensor
for calibration and reference
measurements, cosine correction.
Often used with radiometer SXL55.
UV-Cosine
Waterproof dirt repellent UV sensor
for outdoor measurement, cosine
field of view. Also available as UVI
sensor (ERYCA), M20x1.5 thread
UV-AirAxial measuring screw-in UV sensor
very good EMC properties, M22x1.5thread,
TOCON-Probe
Miniature UV sensor with0 to 5 V voltage output,
M12x1 thread

special applications
UV-ArcWaterproof UV sensor for measurement ofelectric arcs between overhead contact wiresand pantograph, complies with EN 50317,
G3/4" threadsglux ERYCA
highaccuracy
UV-Indexsensor,
measurement uncertainty is <5%. The sensor
complies with ISO 17166, M20x1.5 thread.

UVI-Solo
like sglux ERYCA but configured as aready-to-mount system (available for pole orrailings assembly)

UV-Wirelesswireless UV sensor with a display unit for
intensity and dose measurement

DUty Sensors monitoring
UV disinfection of Air,surfaces and water
UV-Sanitize
UV sensor for monitoring of air and surface UV
disinfection systems, configurable formonitoring of Hg low pressure lamps, excimer
lamps or xenon flash lamps, M20x1.5 thread
UV-Water-G3/4
UV sensor for operation in pressurized water(10 bar), for Hg medium and low pressure
lamps. Also available as UV-Water-G1/4,
G3/4" thread
UV-Water-PTFE
PTFE UV sensor for operation in pressurizedwater (10 bar), only for Hg low pressure
lamps or LEDs, G1/4" thread

UV-ÖNORM / UV-DVGW
UV sensor for DVGW(160°) and ÖNORMcertified water purifiers, also avaliable as
UV-DVGW (40°). The sensors comply withÖNORM M5873, DVGW W294(06), DIN19294
UV-Radial
Waterproof side looking UV sensor formonitoring of lamp bundles, for operation ina cladding tube or directly in water, M20x1.5
threadHIGH UV radiation
UV-CureUV sensor for high irradiance (>100mW/cm2) for LED curing or cooled
medium pressure lamps, M22x1.5
thread (temperature sensor available).
UV-Cure_HT
Like UV-Cure but for temperatures up to170°C, e.g. for uncooled medium pressuresystems, M22x1.5 threadsg lux GmbH | Richard-Willstätter-Str. 8 | D–12489 Berlin | Tel. +49 30 5301 5211 | welcome@sglux.de | www.sglux.de
Rev. 5.2 Due to our strive for continuous improvement, specifications are subject to change within our PCN policy according to JESD46C.