Cooper Bussmann BU-905U-L-T User Manual
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3A1577Rev1.9
Cooper Bussmann BU-905U-L-T Transmitter Quick Start Guide
Industry Canada: BU-905U-L Wireless I/O Module
RSS-119 - This device has been type accepted for operation by Industry Canada in accordance with RSS-119 of the Industry Canada rules.
See the label on the unit for the specific Industry Canada certification number and any other certification designations.
NOTE: Any changes or modifications not expressly approved by Cooper Bussmann P/L could void the user’s authority to operate this equipment.
To operate this equipment legally the user must obtain a radio-operating license from the government agency. This is done so the government can
coordinate radio users in order to minimize interference.
Safety Information - FCC Notice
This device complies with Part 15.247 of the FCC Rules. Operation is subject to the following two conditions:
• This device may not cause harmful interference; and
• This device must accept any interference received, including interference that may cause undesired operation
NOTE: This equipment is suitable for use in Class 1 Division 2 groups A, B and C or non-hazardous locations only.
UL Notice:
1. The Wireless I/O module is to be installed by trained personnel / licensed electricians only and installation must be carried out in accordance
with the instructions listed in the Installation Guide and applicable local regulatory codes.
2. The units are intended for Restricted Access Locations.
3. The Wireless I/O module is intended to be installed in a final enclosure, rated IP54, before use outdoors.
4. The Equipment shall be powered using an external Listed Power Supply with LPS outputs or a Class 2 Power Supply.
5. The Wireless I/O module must be properly grounded for surge protection before use.
Unit Specifications
Input/Output
Number
Additional Information
Digital inputs
2
Dry-contact digital inputs slow-pulsed at 10Hz.
All inputs are suitable for voltage free contacts (e.g., mechanical switches) or NPN transistor
devices (e.g., electronic proximity switches).
NOTE: PNP transistor device inputs are NOT suitable.
Analog Inputs
1
0-20mA differential input; 16-bit resolution, 0.1% accuracy, 10 ohm input impedance.
Thermocouple Inputs
1
J, K or T type thermocouple with on-board cold-junction compensation.
Cold junction compensation accuracy ±1º over ambient temp range: -40º to +70ºC.
Power supply
1
9-30Vdc 1 Amp CSA certified Class 2 power supply. For use in Class I Div 2 hazardous locations,
the power supply must be approved for Class I Div 2 use.
WARNING: Explosion hazard - do not disconnect while circuit is live unless area is known
to be non-hazardous.
Transmitter
1
1 Watt Frequency Hopping Spread Spectrum (FHSS) transmitter.
Frequency
902-928 MHz
Actual frequency range depends on country.
Document Information
Quick Start Guide Cooper Bussmann BU-905U-L-T Wireless I/O Transmitter Unit Version 1.9
Cooper Bussmann Contact Details
Telephone
636-527-1270
Fax
636-527-1607
Website
www.cooperbussmann.com