Brandt Instuments Representing Otis Instruments Fixed Gas Detection Systems, OI-7530 Relayer, 32-Channel Wireless Remote Alarm & Switching Device for Fixed System Gas Detector Assemblies, Alarms & Horns
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Otis Instruments OI-7530
Monitor and Relayer
WireFree™ Explosion Proof Monitor, Alarm & Switching System
32 WireFree™ Channels - AC/DC Power - 3 Relays * 3 Alarm LED's

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Otis Instruments OI-7530 Relayer, 32-Channel Wireless Remote Alarm & Switching Device for Fixed System Gas Detector Assemblies, Alarms & Horns

OI-7530-X-X-A WireFree™ Monitor and Relayer
Sensor Alarm & Switching Device

Trigger strobes, alarms, horns & switches
without wires & conduit

The Otis Instruments OI-7530 GenII WireFree™ Monitor and Relayer is a wireless relay/alarm system used to monitor up to 32 remote sensor assemblies via transmissions from an on-board radio and trigger alarms and switches. DC power is standard, with an option for AC power. There is also an optional non-explosion proof model available. The data sheet can be downloaded using the link below the specification list..

Mounting the OI-7530 near the various entrances of a large site allows the employee or technician to immediately determine if it is safe to enter the site, making this device incredibly useful in any environment with the potential for hazardous gases.

   Quickly setup and install a remote alarm system
   Also remotely turn on and off fans, motors or other devices
   Place the OI-7530 anywhere wireless alarms are needed
          (within WireFree range)
   Monitor up to 32 individually configured WireFree™ sensors
    Glass lid for viewing channel display, LEDs & setup buttons
    Continuous scanning monitors all channels
   Displays gas concentration of displayed channel
   Non-Intrusive operation with MENU, ADD & SUB
   3 relays and 4 fused dry contact outputs
    Output Alarms - low, high or danger
    Alarms can be setup as latched or unlatched
   Certifications: Enclosure - Class 1, Div 1
    Available in a NEMA 4 enclosure for non-classified areas
    AC or DC power-in option

   Radio Options:
        Gen II radio 900 MHz, 200mW
               (2.4 GHz ISM, 100mW available for international use)

 

OI-7530 32-Channel Remote Sensor Alarm & Switching System
Technical Specifications

Enclosure Aluminum Device Enclosure
Display 128x64 Resolution Graphical LCD Screen
Transflective (Sunlight Readable) with LED Backlight
Size & Weight 8 in. L x 8 in. W x 4 in. H (Max. Dimensions w/ Attachments) | 12.8 lbs
Compatibility GEN II WireFree Sensors (OI-6000, OI-6900, OI-6940)
GEN II WireFree Transmitters (OI-5900, OI-5950)
Sensor Types Electro-chemical, catalytic bead, PID or Infrared.
Channels 32 Sensor Assemblies, individually configurable
Customizable Settings

3 Individually-Configurable Alarm Set-Points Per Channel
Option to Disable Alarm Relays
Latching and Non-Latching Relay Settings

Networks 52 Networks (GEN II 900 MHz Radio)
78 Networks (GEN II 2.4 GHz Radio)
255 Addresses per Network
Relays 3 Dry-Contact Relays with 4 Amp Replaceable Fuses
Fault Terminal
Gases All that are supported by the sensor assemblies
Antennas Solid Black- 900 MHz (Domestic) | Yellow Tip - 2.4 GHz (International)
RF Connector External N-Female Radio Frequency (RF) Connector
Tamb Temperature Range -40°C to +70°C | -40°F to +158°F
Operating Voltage 12-35 Volts DC; 120/240 Volts AC
Power Supply 3.13A (75W), 85/264V AC to 24V DC (Optional)
Certifications and Approvals Class I, Groups B, C, and D
Class II, Groups E, F, and G
ABS Design Assessed
Radio Communication One Gen II radio 900 MHz, 200mW
(2.4 GHz ISM, 100mW available for international use)
Warranty Hardware: One year (limited)
Part Number Formula OI-7530-[Radio]-[Power Supply]-A
OI-7530-X-X-A


Otis OI-7530-X-X-A Explosion Proof Data Sheet

Otis OI-7530-X-X-I Non-Explosion Proof Data Sheet

   OI-7530 Manual

For additional accessories & options:  Accessories

Otis Instruments WireFree Configuration Example in the Field

Otis Instruments Replacement Gas Sensors
For Wired or WireFree™ Remote Sensor Assemblies

Part # Description Range Resolution
Accuracy
OI-254-O2 O2, Oxygen 0 - 25% vol 0.1%
± 2%
OI-2018-SB-CB2 LEL, Combustible Gas
(Catalytic Bead) (OI-6000 only)		 0 - 100% LEL 1.0% Increments
±1%
OI-140-IR-LEL LEL, Combustible Gas (Infrared)
(OI_6000 only)		 0 - 100% LEL 1.0% Increments
± 2%
OI-254-CO CO, Carbon Monoxide 0 - 1000 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 2%
OI-140-IR-CO2 CO2, Carbon Dioxide
(OI-6000 only)		 0 - 5% vol 0.1 ppm
± 2%
OI-254-H2S H2S,  Hydrogen Sulfide 0 - 100 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 2%
OI-254-H2S-2K H2S, Hydrogen Sulfide (Ext.Temp) 0 - 2000 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 2%
OI-254-NH3 NH3, Ammonia 0 - 100 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 5%
OI-254-NH3A-N NH3, Ammonia (Ext) 0 - 1000 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 5%
OI-254-Cl2 Cl2, Chlorine 0 - 10 ppm 0.1 ppm
± 5%
OI-254-F2 F2, Florine (Call for availability) 0-1 ppm 0.01 ppm
± 5%
OI-254-CH2O CH2O, Formaldeyde 0-10 ppm 0.01 ppm
± 2%
OI-254-H2 H2, Hydrogen 0- 4% vol 0.1 ppm
± 10%
OI-254-HCL-A HCL, Hydrogen Chloride 0- 100 ppm 0.1 ppm
± 5%
OI-254-HCN-2 HCN, Hydrogen Cyanide 0- 100 ppm 0.1 ppm
± 5%
OI-254-HF HF, Hydrogen Floride 0 - 10 ppm 0.1 ppm
± 10%
OI-254-NO2-N NO2, Nitrogen Dioxide 0-50 ppm 0.1 ppm
± 5%
OI-254-O3 O3, Ozone 0-100 ppm .1 to 10 ppm, 1 ppm thereafter
± 2%
OI-254-SO2 SO2, Sulfur Dioxide 0 - 20 ppm .1 to 10 ppm, 1 ppm thereafter
± 2%
OI-254-PH3-5-5 PH3, Phosphine 0 - 5 ppm 0.1 ppm
± 2%
OI-PID-A1 PID, Photo Ionization Detector for volatile organic compounds (VOCs) 0-2000 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 5%
OI-254-AH PID, Photo Ionization Detector for volatile organic compounds (VOCs)

0-50 ppm

0.1 to 10 ppm, 1 ppm thereafter
± 3%


Note: Other gases and ranges available. Contact us for additional information

 

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WARNING! Otis Instruments equipment should only be used in conjunction with the manufacturer's instructions.
Failure to follow such instructions could result in serious injury or fatalities.

 

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