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Supply 12 or 24VDC ±20%, depending on model, current 34-68mA @ 24V, 25-55mA @ 12V Recommended Interfaces Zener Barriers: S951 (24V version), S931 (12V version) IS Isolators: WIS1211 (24V version) Recommended Cable 0.5 to 2.5mm Construction UV stable glass reinforced polyester with stainless steel retaining screws. Colour – red Connections Eight terminals suitable for cable up to 2.5mm

Technical Specification

Certification Location ATEX certified to EN50014:1997, EN50020:1994 and EN50284:1999 Group II, Category 1G, EEx ia IIC or IIB T4 (Ta –55ºC to +70ºC) Zones 0, 1 or 2. Gas Group, IIC (or IIBdepending on model) or IIA, Temp Classup to T4 Ω Li = 10mH + 148.5 Ω Sound (IIC)/46.1 Ω (IIB)(IIC)/25.5 Ω (IIB)Please refer to to EC Type ExaminationCertificate and related System Certificate for full details on suitable interface devices. 26 user selectable tones, see table below for tone types and related volumes. Two different tones can be selected using the separate DIL switches, reversing the polarity of the supply will select the second tone. Certificate No. BAS00ATEX1260 Safety Parameters 24V Version:12V Version: Ui = 28VUi = 15.7V Ii = 123mA (IIB vers.)Ii = 123mA (IIB) Ii = 61.3mA (IIC vers.)Ii = 61.3mA (IIC) Pi = 0.653WPi = 0.563W Ci = 0Ci = 0 Li = 10mH + 171.5
2 Installation Details Having a deep base and extra terminalsmakes these units convenient for loopingto other circuits or for siting “end-of-line”resistors. The base has three knock-outs to accommodate PG13.5/20mm conduit or cable glands. The units are polarisedand a chain may be fitted with an “end-of-line” resistor for reverse polarity testing and to permit line monitoring.
2 with earthed screen andinsulating sheath. Cable parameters are determined by the output parameters of the interface selected Environment Operating temperature:–55 to 70ºC Storage temperature:–55 to 80ºC Humidity:0-95% RH, non-condensing Protection IP66 EMC Compliance Immunity to EN61000-6-2:2001 Emissions to EN61000-6-4:2001 Weight 1.0kg

Tone and Sound Levels with ISInterface

NoTonesSwitchSoundLevel CodeTypedBA 1 Alternating 800/970Hz at 0.25s1111199 2 Sweeping 800–970Hz at 7Hz1111097 3 Sweeping 800–970Hz at 1Hz1110198 4 Continuous at 2850Hz11100HF 2nd tone107 5 Sweeping 2400–2850Hz at 7Hz11011107 6 Sweeping 2400–2850Hz at 1Hz11010107 7 Slow Whoop1100198 120 8 Sweeping 1200–500Hz at 1Hz1100098 9 Alternating 2400/2850Hz at 2Hz10111107 50 10 Intermittent 970Hz at 1Hz1011098 11 Alternating 800/970Hz at 7/8Hz1010198 12 Intermittent 2850Hz at 1Hz10100107 40 13 970Hz at 0.25s on, 1s off1001198 40 1234+–+– 14 Continuous 970Hz10010LF 2nd tone98 15 554Hz for 100ms, 440Hz for 400ms10001French fire93 140 Ø 16 Intermittent 660Hz: 150ms on, 150ms off10000Swedish fire89 (6.5mmfixing holes)Three entriesfor cable glands 17 Intermittent 660Hz: 1.8s on, 1.8s off01111Swedish fire89 18 Intermittent 660Hz: 6.5s on, 13s off01110Swedish fire89 19 Continuous 660Hz01101Swedish fire89

Approvals

20 Alternating 554/440Hz at 1Hz01100Swedish fire92 21 Intermittent 660Hz at 7/8Hz01011Swedish fire89 Country &StandardCertificateApproved 22 Intermittent 2850Hz: 150ms on, 100ms off01010Pelican Crossing107 Authorityfor 23 Sweeping 800–970Hz at 50Hz01001Low buzz95 Europe EN50014, EN50020BAS00ATEX1260EX II 1G 24 Sweeping 2400–2850Hz at 50Hz01000High buzz104 Baseefaand EN50284EEx ia IIC and IIB T4 25 3970Hz pulses, 0.5s on/0.5s off, 1.5s off0011198 Russia Gost ‘R’ CertificationA-0758OEx ia IIC and IIB T4 26 32850Hz pulses, 0.5s on/0.5s off, 1.5s off00110107 Due to our policy of continuous product development, we reserve the right to amend specifications without notice. Doc DB7-0

DB7 Intrinsically Safe Sounder - 19514 5

YEAR RTK Instruments Limited St James Business Park, Knaresborough, North Yorkshire, England. HG5 8PJTelephone: +44 (0)1423 580500Facsimile:+44 (0)1423 580501 Web: www.rtkinstruments.com Email: enquiry@rtkinstruments.com GUARANTEE FM14290ISO9001:2000