Installation notes
DANLERS Limited, Vincients Road, CHIPPENHAM, Wiltshire, SN14 6NQ, UK.
Telephone: +44 (0)1249 443377 Fax: +44 (0)1249 443388
Company Registered Number 2570169 VAT Registration Number 543 5491 38
Products available from DANLERS
• PIRoccupancyswitches•Daylightlinkeddimmers•Manualhighfrequencydimmers
• Photocells • Radio remote controls • Time lag switches • Outdoor security switches
• Dimmers•Heating,ventilationandair-conditioningcontrols•Bespoke/O.E.M.products
Please call for more information or a free catalogue, or visit our website.
ThisproductconformstoBSEN60669-2-1andBSEN55015.
Pleaseensurethemostrecenteditionoftheappropriatelocalwiringregulationsareobserved
andsuitableprotectionisprovidede.g.a10ampcircuitbreakerandvoltagesurgeprotection.
Pleaseensurethatthisdeviceisdisconnectedfromthesupplyifaninsulationtestismade.
Thisproductiscoveredbyawarrantywhichextendsto5yearsfromthedateofmanufacture.
Precautions and Warranty
Ceiling Surface PIR absence switch (round)
CESRA PIR
DANLERSceilingsurfacepassiveinfra-redabsenceswitch(CESRAPIR)
canbemounteddirectlyontosolidceilingsorontoarangeofdifferent
mounting boxes.TheCESRAPIRincorporatesapassiveinfra-redquad
sensortodetectmovementofawarmbodywithinitsdetectionzone
(diagramA)andaphotocelltomonitortheambientlightlevel.
Whenenteringtheroom,iftheambientlightisdarkenough,thelights
canbeactivatedbypressingamomentarylightswitchforlessthan2
seconds. The ambient threshold can be set by the user to between
approximately 30 lux and innite lux (photocell inactive) via the LUX
adjuster(diagram B). Ifno moremovement isdetected withina pre-
selectedtime,thentheCESRAPIRwillswitchtheloadoff.Thistime
lagcanbe set viatheTIME adjusterto10seconds, 20seconds,40
seconds,80seconds,2m30s,5m,10m,20mor40minutes(diagramB).
Pressingandholdingthemomentaryswitch(for2secondsormore)
(whileCESRAPIRisinitsONstate)willoveridethecontrolenabling
theloadto beswitchedOFF.Thisisusefulwhena darkenedroom
isrequiredoriftheuserdoesnotwishthetimelagperiodtoelapse.
Allow a minimum of 1 second to elapse after the lights have gone off before
repressing the momentary switch (allowing CESRA PIR to reset).
Loading
Theswitchshouldonlybeconnectedtoa230V50HzACsupply.
ThesePIRswitchescanswitchupto:
6amps(1500W)ofresistiveloads.
6amps(1500W)ofuorescentloads.
3amps(750W)ofelectronicandwirewoundtransformerloads.
2amps(500W)ofCFL,2Dlamps,LEDDriversandLEDlamps
andttings.
1amp(250W)offans
Minimumload2Wresistive,suitableformostenergysavinglamps,
LEDsandemergencyttings.
15/12/15 INS227 CESRA PIR
Troubleshooting
The load will not switch on when the momentary switch is operated:
• TheLUXadjusterissettoolowandisinhibitingtheswitch.
The Absence detector switches off when the room is occupied:
• Theoccupationisoutsideofthedetectionzone(seediagramA),
movementsaretoosmallortooinfrequent.IncreasetheTIMEadjuster.
Momentary switches
DANLERScansupplyarangeofMomentary/Retractiveswitches-
push to make or break:
MOMSWMP-PlatedgreymetalnishwithPRESSpreprintedonswitch.
MOMSWM-Platedgreymetalnishwithblankswitch.
MOMSWWHP-PlatedwhitenishwithPRESSpreprintedonswitch
MOMSWWH-Platedwhitenishwithblankswitch.
MOMSWPMOD-GridmodulesuitableforMKGridPluswithPRESS
preprintedonswitch.
MOMSWMOD-GridmodulesuitableforMKGridPluswithblankswitch.