|
FMR15104
4 Channel 151MHz Receiver
Features
• Wide supply connection – 11.0 to 28.0 Volts AC/DC
• Highly sensitive receiver input stage.
• Relay Outputs can be operated simultaneously.
• Crystal controlled for high stability and performance.
• Uses micro-controller technology that can be re-programmed to suit unique applications.
• Momentary, flip-flop and latching output modes is user-selectable.
Application
• Pump Control
• Long distance panic button
• On/Off applications in agricultural devices
• Security alarm
• Basic Telemetry eg. Water level indication
|
 Click image to enlarge
 Download Datasheet
|
Description
FMR15104 can be used in noisy environment and is least affected by electrical interference. This makes FMR15104 an ideal choice for use in heavy industrial environment.
Modes
The four dip switches correspond to the respective relays. Switch 1 for relay output 1, switch 2 for relay output 2 and so forth.
1. Momentary Mode
If the dipswitch is off the relays will be in momentary mode.
2. Flip Flop Mode
If the dipswitch is on the relays will be in flipflop mode.
Coding
The 12 way dip switch on the receiver sets the 12 bit unique code for the system. This has to be matched to that on the transmitter.
Apart from the 12 way dip switch there is an additional 1 way dip switch :
This 1 way DIP switch on the right side of the 12 way dip switch denotes the channels. See table below.
Generally to use a 4 channel Tx to 4 channel Rx match all the 13 dip switch (12way + 1way just on the right side of the 12 way).
To use an 8 channel tx to control 2 x four channel Rx match all the 12 dip switch and switch 13 off will 1 Tx and switch 13 on will use the other Tx.
FMR15104
1-Way DIP Switch & Four Relay Outputs
SW13 |
Channel |
OFF |
1 |
OFF |
2 |
OFF |
3 |
OFF |
4 |
ON |
5 |
ON |
6 |
ON |
7 |
ON |
8 |
Products in the Range
Technical Data
Supply Voltage |
11.0 - 28.0 VDC
10.0 - 28.0 VAC
Can use Elsema AC power pack (PP12 / PP24)
Supply lines should be less than 3m long to comply with radio frequency authorities |
Current Consumption |
10mA Standby at 12VDC
110mA if all relays “ON” at 12VDC |
Receiver Type |
Single Conversion Superheterodyne |
Receiving Frequency |
151.6MHz (8 selectable frequencies within 150.900 - 151.600MHz with 100KHz spacing avaliable). |
Oscillation System |
VCO with 10ppm crystal controlled reference oscillator |
Operating Temperature Range |
-5 to 50°C |
IF Frequency |
10.7MHz |
Selectivity |
Better than -6dB at ±25kHz |
Type of Demodulation |
Narrow-Bandwidth Frequency Modulation (FM) |
Occupied Bandwidth |
25kHz at -20dB |
| Output |
Four change over relay outputs, rated at 8 Amps/240 Volts |
Connection |
Supply, Antenna & Outputs - Screw type terminal block |
Antenna |
50Ω, 151MHz Antenna, Elsema ANT151M for maximum performance
A piece of approximately 1metre wire can be used for short range applications |
Dimensions |
130 x 70 x 20mm |
Mounting Hole Size |
3.97mm or 5/32” |
Weight |
100g |
| Useable Transmitters |
FMT15101E, FMT15102E, FMT15104E, FMT15108E (with correct setting on the dip switch). See Transmitter datasheet for details. |
Useable Operating Range |
Up to 5000 metres, depending on installation and type of antenna used. Recommended Antenna is Elsema ANT151M |
Block Diagram
FMR15104 12/24 VAC/DC Application
FMR15104 110/240 VAC Application
|
