Otis Instruments Omniguard Model 660 Flame Detector

Certifications & Approvals

- Class I, Division 1, Groups B. C & D (Explosion Proof)

- Class II, Division 1, Groups E, F & G (Dust Ignition Proof)

- NEMA 4X Weatherproof, Dust-Tight, Watertight

- ŒE0081 Ex d II 2 G/D

- Ex d IIB+H2 T5 Gb for Gas on 660-0XXXX

- Ex tb IIIC T100°C Db IP6X for Dust on 660-0XXXX

- Ex d 118+H2 T4 Gb for Gas on 660-1XXXX

- Ex tb IIIC T1 135°C Db IP6X for Dust on 660-1XXXX

- Copper-Free Aluminum Housing Conversion Coated to MIL-C-5541C. Class 3 (White) - Standard

Output

- Relay

Relays (2): Fire, Trouble, Dry Contacts, Hermetically Sealed

Rated: 2 A at 28 VDC (User Selects NO or NC)

Fire Relay: User Selects Latching or Non-Latching

- Current Loop (Standard Version):

0 to 20 mA Output

20 mA = Fire

0 mA = Ready

Operating Temperature Range

-40°F to 185°F (-40°C to 85°C) - Standard,

-40°F to 257°F (-40°C to 125°C) - Special High Temp. Version

Optional Accessories

- Swivel Mount: No. 20856 (Used with Aluminum); No. 70991 (Used with Stainless Steel)

- Portable Test Unit: No. 43808-2

- Air Shield Assy Kit: No. 8001023

Spectral Response

Ultraviolet Peak Sensitivity of 0.22 um

Nominal Voltage

24 VDC (Ripple Voltage <240mV)

Voltage Range

20 to 30 VDC

Power Consumption

90 mA (Standby), 110 mA (Alarm), 250 mA (Auto and Manual Test)

Digital Output

Programmable RS-485 Modbus Serial Output

Product Dimensions

4.5 H x 5.5 W x 6 D in.

Total Weight

5 Ibs. Aluminum, 13 Ibs. Stainless Steel

Conduit Entry

3/4-14 NPTF or M20-1.5