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 Fixed Gas Detection Systems Logo

Otis Instruments OI-7530 Relayer
WireFree™ Remote Sensor Alarm & Switching System

32 WireFree™ Channels
3 Relays * 3 Alarm LED's



home otis instruments fixed point detectors OI-7530 Otis Instruments 7530 32-Channel WireFree Remote Sensor Alarm & Switching System



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

OI-7530 WireFree™ Remote Sensor Alarm
& Switching Device Features

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

The OI-7530 GenII WireFree™ 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.

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
   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 Adalet enclosure - Class I, Div 1
Size 7" long x 7" wide x 6" deep | Weight: 14 lbs
Compatibility Otis WireFree™ sensor assemblies
Channels 32 Sensor Assemblies, individually configurable
Gases All that are supported by the sensor assemblies
Sensor Types Electro-chemical, catalytic bead, PID or Infrared.
Outputs Low Relay/High Relay, 4A fused dry contacts
Antennas Solid Black- 900 MHz (Domestic) | Yellow Tip - 2.4 GHz (International)
RF Connector Class I, Div 1, External N Female
Operating Temperature -30F to +70C
Operating Voltage 12-24 Volts DC; 120/240 Volts AC
Power Usage 1.68 Watts Max
Power Connector Phoenix-like screw terminal
Radio Communication One Gen II radio 900 MHz, 200mW
(2.4 GHz ISM, 100mW available for international use)
Warranty Hardware: One year (limited)


Otis OI-7530 Brochure

   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% 0.1%
± 2%
OI-120-NP-17SHM LEL, Combustible Gas
(Catalytic Bead) (OI-6000 only)
0 - 100% LEL 1.0% Increments
±1%
OI-140-NP-IR-LEL LEL, Combustible Gas (Infrared)
(OI_6000 only)
0 - 100% LEL 1.0% Increments
± 2%
OI-254-CO CO, Carbon Monoxide 0 - 999 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 2%
OI-140-IR-CO2 CO2, Carbon Dioxide
(OI-6000 only)
0 - 5% 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 - 100 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 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 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% 0.1 ppm
± 10%
OI-254-HCl HCN, Hydrogen Chloride 0- 30 ppm 0.1 ppm
± 5%
OI-254-HCN HCN, Hydrogen Cyanide 0- 30 ppm 0.1 ppm
± 5%
OI-254-HF HF, Hydrogen Floride 0 - 10 ppm 0.1 ppm
± 10%
OI-254-NO2 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 - 20ppm .1 to 10 ppm, 1 ppm thereafter
± 2%
OI-254-PH3 PH3, Phosphine 0 - 20 ppm 0.1 ppm
± 2%
OI-254-PID-A1 PID, Photo Ionization Detector for volatile organic compounds (VOCs) (OI-6000 only) 10, 20 or 50 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 5%
OI-254-AH PID, Photo Ionization Detector for volatile organic compounds (VOCs) (OI-6000 only)

1000 or 2000 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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Brandt Instruments, Inc. 
    18568 Oak Grove Parkway 
    Prairieville, LA  70769 
1-800-337-6291  
Phone: 225-673-6776
    Fax: 225-673-6725
 

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