SIL725 Safety Annunciator - RTK - #8

Refer to the Certificate and the Operating Manual for the full details on using the SIL725 as part of a safety instrumented system

Up to four common relays can be fitted to the SIL725, these are all SIL2 compliant outputs and each can be configured by the user as one of the

1 Audible A

2 Audible B

3 Group A

4 Group B

Relay contacts rated at 110VDC @ 1A, 24VDC @ 4A resistive

Each alarm way can have individual repeat relays. Changeover contact available. Relay contacts rated at 220VDC (250VAC) max, 125VDC @ 0.5A, 24VDC @ 2A, resistive.

3kHz peizoelectric buzzer at 90dB 30cm.

24VDC Nominal (21-28VDC)

Quiescent: 9mA

Medium window 40mA Large window 80mA

Relays: All window sizes 10mA per relay

Additional current for pushbutton module and audible 120mA

Each SIL2 compliant Common Relay will add 50mA each

Standard Power Supplies and DC/DC Converters can be supplied on request.

Immunity to EN61000-6-2:2001 Emissions to EN61000-6-4:2001 LVD to EN61010-1:1993

To AMSI/IEEE C37.90:1989

Operating temperature -20 to 55°C

The SIL725 can work up to 60°C but should not be exposed to an ambient temperature with an average (over its working life) greater than 50°C as this will affect the operating life of the product.

Storage temperature -20 to 80°C

Humidity 0-95% RH, non condensing

Front of panel: IP41 Rear of enclosure: IP20 Optional covers and enclosures to protect from IP54 up to IP67

Two-part rising clamp type terminals, for conductors up to 2.5mm²

Approximately 0.3kg per module.

The inputs are all bipolar so can accept AC or DC voltages.

The standard unit is suitable for volt-free contacts or 24VDC powered inputs. Each input is triggered from a Normally Closed field contact.

All customer inputs are optically coupled as standard and are capable of withstanding 1000V Megger test to ground.

This voltage is distributed through the annunciator to field contacts, 24VDC is supplied as standard.

Options for 48 and 125V are available. The inputs are all bipolar so can accept AC or DC voltages.

► Standard units 22ms

► Customer defined fixed response time from 1ms to 2s, specified at time of order

► Adjustable response time typically 5-50ms (Option AD1)

Better than 5ms

Both integral and terminals for remote fitting

► LED Test ► System Test

► Acknowledge ► Mute

► Reset ► First-up Reset Optional remote pushbutton/ programming assembly.

Medium: 60x30mm(WxH) Large: 60 x 60mm

Red, Amber, Yellow, White, Green and Blue.

Medium window Assemblies/dual LED Large window Assemblies/four LEDs

The LEDs are ultra-bright LED Assemblies that plug into the standard 10mm wedge style lampholder.

10mm base 'Fit and Forget' plug-in LED Assemblies, typically 20mA, minimum 11-year life expectancy.

Warning: Safety integrity of the SIL725 relies on none of the electrical or environmental limits being exceeded

Due to our policy of continuous product development, we reserve the right to amend specifications without notice.

RTK Instruments Limited Telephone: +44 (0)1423 580500

St James Business Park, Facsimile: +44 (0)1423 580501

Knaresborough, North Yorkshire, Web: www.rtkinstruments.com

England. HG5 8PJ Email: enquiry@rtkinstruments.com

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