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Brandt
Instruments Representing Otis Instruments
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Otis Instruments OI-7400
Wired Remote Sensor Controller Systems
Fixed Gas Detection System
Choose From 2-32 Channel Controller Monitors
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OI-7400
Series Otis Instruments Multi-Channel Wired Sensor Controller
System
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OI-7420
2
Channel Controller- Monitor
Configured with Optional Light & Horn
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OI-7480
1 to 12 Channel Controller-Monitor
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OI-7432
32 Channel Modbus Controller - Monitor
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Otis Instruments
OI-7400 ProSafe series wired controller systems are
available as 2 to 32 channel controllers as part of
a fixed gas detection system. OI-7400
systems are designed to provide continuous monitoring
for a variety of common atmospheric hazards including:
| Ammonia
(NH3) |
Formaldehyde
(CH2O) |
Oxygen
(O2) |
| Carbon
monoxide (CO) |
Hydrogen
Cyanide (HCN) |
Ozone
(O2) |
| Chlorine
(Cl2) |
Hydrogen
Fluoride (HF) |
Sulfur
dioxide (SO2) |
| Combustible
gas (LEL) |
Hydrogen
Sulfide (H2S) |
Phosphine
(PH3) |
| Fluorine
(F2) |
Nitrogen
Dioxide (NO2) |
PID
sensor for VOC detection & many others |
OI-7400
controller systems are avalailable for a variety of
of applications. The OI-7420 with two channels can
be used in smaller locations such as warehouses and
laboratories. The OI-7432 with 32 channels and
a Modbus interface is perfect for installations such
as large parking garages where the Modbus interface
saves money in wiring the remote sensor head assemblies.
OI-7420 ProSafe 4x2 Wired (4-20mA) 2 channels, 4 dry
contacts
OI-7440 ProSafe 4x4 Wired (4-20mA) 1-4 channels, 4
dry contacts
OI-7480 ProSafe 4x8 Wired (4-20mA) 8 or 12 channels,
4 dry contacts
OI-7432 ProSafe 4x32 Wired (ModBus Interface only)
32-channels, 4 dry contacts
The
compatible OI-6000
wired sensor assemblies are available with Electro-Chemical
(EC), Catalytic Bead, PID or Infrared (IR) sensor
elements. Sensors assemblies are linked by wire
to the controller. The the OI-7400 offers the
flexibility to choose single, twin or tri-color high-intensity
strobes. For instance, it an be configured with a
TriLite strobe, integrated 102
db audio alarm, combined with a real time LCD
readout…..all in a sleek, tough
NEMA 4X housing.
The
ability to display data and activate alarms in relation
to readings sent from on-site sensors make the OI-7400
controllers an efficient way to monitor toxic hazards.
With four dry contact relays, signals can also
be routed to and from other remote sensors such as
temperature, pressure, tank levels, motors and fans.
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OI-7400
ProSafe Wired Controller Systems
General Technical Specifications
Note:
Specifications below are common to all 7400
controllers
For specific models download the literature
using the links below.
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| Case |
Stahlin
fiberglass with clear window, wall mount
NEMA
4 enclosures are intended for indoor and outdoor
use primarily to provide a degree of protection
against corrosion, windblown dust and rain,
splashing water, and hose-directed water; and
to be undamaged by the formation of ice on the
enclosure.
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| Dimensions
& Weights |
OI-7420:
8" x 8" x 4" | 8.15 lbs
OI-7440: 10" x 8" x 6" | 8.5 lbs
OI-7480: 12" x 10" x 6" | 12.5
lbs
OI-7432: 10" x 8" x 6" | 8.5 lbs |
| Display
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Graphical
LCD, sunlight readable
LED back-light, 160 x 104 resolution |
| Tamb
Temperature Range |
(-4°F
to +158°F) (-20°C to +70°C) |
| Interface |
OI-7420:
Four push buttons (MENU, ADD, SUB, RESET)
OI-7440: 5 Push-Buttons (MENU, ADD, SUB, SCAN/HOLD,
and RESET/ESC
OI-7480: 5 Push-Buttons (MENU, ADD, SUB, SCAN/HOLD,
and RESET/ESC
OI-7432: 5 Push-Buttons (MENU, ADD, SUB, SCAN/HOLD,
and RESET/ESC |
| Sensor
Types |
Electro-chemical,
catalytic bead, PID or Infrared. |
| Product
Compatibility |
Any
Otis Wired Sensor Assemblies (OI-675, OI-6000,
OI-6000K)
Other 3rd-Party Wired (Analog) Sensors |
| Power
Supply |
OI-7432:
6.25A (150W), 85/264V AC to 24V DC (Optional)
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| Operating
Voltage |
12-35
VDC | Optional AC Power Supply |
| Current
Draw |
7420:
225 mA Maximum
7440: 275 mA Maximum
7480: 300 mA Maximum (8-Channel), 25 mA Maximum
(12-Channel)
7432: 275 mA Maximum |
| Input
Signal |
4-20mA,
analog inputs |
Output
(Internal Alarm Power) |
7420:
12-35 VDC (Fault Indicator) RS-485 Modbus
7440: 12-35 VDC (Fault Indicator) RS-485 Modbus
with optional real-time monitoring software
7480: 4-20 mA (Fault Indicator), RS-485 Modbus
with optional real-time monitoring software
7032:
RS-485 Modbus only
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| Relays |
4
Dry-Contact Relays with 4 Amp Replaceable Fuses
Fault Terminal
Option to Disable Alarm Relays
Latching and Non-Latching Relay Settings
Individual Set Per Channel |
| Protection |
Power
Electromagnetic Interference (EMI) Filter
4-20 mA Surge Suppression
RS-485 Surge |
| Warranty |
Hardware:
One year (Limited) |
| Part
Number Formula |
OI-7420-[Power]-2
| OI-7420-X-2
OI-7440-[Power]-4 | OI-7440-X-4
OI-7480-[Power]-[Channels] | OI-7480-X-X
OI-7432-[Power]-32 | OI-7432-X-32
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Each
OI-7400 monitors includes the controller with
all standard alarms, relays and electronics
installed in a non explosion-proof fiberglass
housing. Custom configurations with lights and
horns are available.
Note: Cable, conduit, wire and other
components necessary to connect remotely located
sensors with the controller are not included.
Order any cable separately from Otis or an electrical
supply house.
Otis
OI-7420 ProSafe Controller Data Sheet
Manual
Otis
OI-7440 ProSafe Controller Data Sheet Manual
Otis
OI-7440-R-WireFree-Converter-Configuration-Guide
Otis
OI-7480 ProSafe Controller Data Sheet Manual
Otis
OI-7432 ProSafe Controller DataSheet Manual
For additional accessories & options:
Accessories
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OI-7432
ProSafe Wired Controller-Monitor
Typical Example of the Panel Front of OI-7400
Series
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Otis
Instruments OI-6000 Sensor Assembly Sensors
| Part
# |
Description |
Range |
Resolution |
Accuracy
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| OI-254-O2 |
O2,
Oxygen |
0
- 25% vol |
0.1% |
±
2%
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| OI-2018-SB-CB2 |
LEL,
Combustible Gas
(Catalytic Bead) (OI-6000 only) |
0
- 100% LEL |
1.0%
Increments |
±1%
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| OI-140-IR-LEL
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LEL,
Combustible Gas (Infrared)
(OI_6000 only) |
0
- 100% LEL |
1.0%
Increments |
±
2%
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| OI-254-CO |
CO,
Carbon Monoxide |
0
- 1000 ppm |
0.1
to 10 ppm, 1 ppm thereafter |
±
2%
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| OI-140-IR-CO2 |
CO2,
Carbon Dioxide
(OI-6000 only) |
0
- 5% vol |
0.1
ppm |
±
2%
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| OI-254-H2S |
H2S,
Hydrogen Sulfide |
0
- 100 ppm |
0.1
to 10 ppm, 1 ppm thereafter |
± 2%
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| OI-254-H2S-2K |
H2S, Hydrogen
Sulfide (Ext.Temp) |
0
- 2000 ppm |
0.1
to 10 ppm, 1 ppm thereafter |
± 2%
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| OI-254-NH3 |
NH3,
Ammonia |
0
- 100 ppm |
0.1
to 10 ppm, 1 ppm thereafter |
±
5%
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| OI-254-NH3A-N |
NH3,
Ammonia (Ext) |
0
- 1000 ppm |
0.1
to 10 ppm, 1 ppm thereafter |
±
5%
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| OI-254-Cl2 |
Cl2,
Chlorine |
0
- 10 ppm |
0.1
ppm |
±
5%
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| OI-254-F2 |
F2,
Florine (Call for availability) |
0-1
ppm |
0.01
ppm |
±
5%
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| OI-254-CH2O |
CH2O,
Formaldeyde |
0-10
ppm |
0.01
ppm |
±
2%
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| OI-254-H2 |
H2,
Hydrogen |
0-
4% vol |
0.1
ppm |
±
10%
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| OI-254-HCL-A |
HCL,
Hydrogen Chloride |
0-
100 ppm |
0.1
ppm |
±
5%
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| OI-254-HCN-2 |
HCN,
Hydrogen Cyanide |
0-
100 ppm |
0.1
ppm |
±
5%
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| OI-254-HF |
HF,
Hydrogen Floride |
0
- 10 ppm
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0.1
ppm |
±
10%
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| OI-254-NO2-N |
NO2,
Nitrogen Dioxide |
0-50
ppm |
0.1
ppm |
±
5%
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| OI-254-O3 |
O3,
Ozone |
0-100
ppm |
.1
to 10 ppm, 1 ppm thereafter |
±
2%
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| OI-254-SO2 |
SO2,
Sulfur Dioxide |
0
- 20 ppm |
.1
to 10 ppm, 1 ppm thereafter |
±
2%
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| OI-254-PH3-5-5 |
PH3,
Phosphine |
0
- 5 ppm |
0.1
ppm |
±
2%
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| OI-PID-A1 |
PID,
Photo Ionization Detector for volatile organic
compounds (VOCs) |
0-2000
ppm |
0.1
to 10 ppm, 1 ppm thereafter |
±
5%
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| OI-254-AH |
PID,
Photo Ionization Detector for volatile organic
compounds (VOCs) |
0-50
ppm
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0.1
to 10 ppm, 1 ppm thereafter |
±
3%
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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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Return
to Brandt Instruments
For
more information Email 
Brandt
Instruments, Inc.
18568 Oak Grove Parkway
Prairieville, LA 70769
1-800-337-6291
Phone: 225-673-6776
Fax: 225-673-6725
Copyright © 2002-2022 Brandt Instruments,
Inc.
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