|
FMT15101E, FMT15102E, FMT15104E, FMT15108E
12 Volt 100mW 151MHz Transmitter
Features
• 4 versions – 1-channel (FMT15101E), 2-channel (FMT15102E), 4-channel (FMT15104E) and 8-channel (FMT15108E).
•100mW Transmitter with current consumption of 85mA
• Specially programmed micro-controller
•Less affected by Natural or man-made electrical interference
•Durable alloy metal case
• Simultaneous channel transmission is possible, i.e more than one channel can be activated at a time
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 The FMT151… series has 4 versions - 1-channel (FMT15101E), 2-channel (FMT15102E), 4-channel (FMT15104E) and 8-
channel (FMT15108E).
No case versions are also available - 1-channel (FMT15101), 2-channel (FMT15102), 4-channel (FMT15104) and 8-channel
(FMT15108).
The FMT151… has a 100mW transmission with a current consumption of 80mA.
The FMT151… series is designed to give a controlled range of up to 6km. The controlled operation can be any electronic or
electrical operated device when used with the FMR151… series of receivers.
FMT151... series can be used in noisy environment and is least affected by electrical interference. This makes FMT151... an ideal choice for use in heavy industrial environment.
The transmitter uses a specially programmed micro-controller, which ensures the highest reliability, low sleep mode current
(10uA) consumption and greater flexibility. Simultaneous channel transmission is also possible.
The FMT151.. transmitter is the PCB assembly only, while the FMT151..E transmitter is enclosed in an alloy metal case.
External supply connection and SO239 antenna socket is provided with the transmitter.
The transmitter modes for FMT15101 and FMT15102 are user selectable by simply setting the 2-Way dip-switch on the transmitter board.
Transmitter Modes (FMT15101 and FMT15102)
 |
Off Delay 2 – 62 seconds
Transmitter will transmit a 1.5 second transmission burst and then stop for the "off delay" time selected. The "off delay" time is user selectable between 2 to 62 seconds by adjusting trimpot on the transmitter board. If the code changes during the "off delay" period the new code will be transmitted immediately. When the "off delay" time lapses, transmitter will transmit another burst. The transmitter will cycle (transmission and off delay) indefinitely, if at least one code switch from the 12-Way code switch is ON and supply is connected. |
 |
Off Delay 1 – 10 minutes
Same as mode 1 except the "off delay" is user selectable between 1 to 10 minutes. |
 |
Continuous transmission
Transmitter will transmit continuously, if at least one code switch from the 12-Way code switch is ON and supply is connected. A transmission limit of 5 minutes is used to comply with local radio regulations.
To activate a receiver longer than 5 minutes, use a delay off feature in the receiver (FMR15101) and transmitter. The delay off feature in the receiver needs to be set more than the transmitter. This ensures that the transmitter keeps resetting the off delay in the receiver. Refer to Application Note |
 |
1.5 – 10 seconds one burst transmission
Transmitter will transmit one burst and then go to standby or sleep mode. Adjusting the trimpot will vary the burst length. When the code is changed and supply is connected, transmitter will emit one new burst of the new code. |
Sleep mode (10 uA) is activated when all inputs are OFF; this applies to all four modes |
The transmitter modes for FMT15104 is user selectable by simply setting the 1-Way dip-switch on the transmitter board.
Transmitter Modes (FMT15104)
Switch position |
Mode |
|
Delayed OFF 2 - 62 sec.
Transmitter will transmit a 1.5 second transmission burst and then stop for the "off delay" time selected. The "off delay" time is user selectable between 2 to 62 seconds by adjusting trimpot on the transmitter board. If the code changes during the "off delay" period the new code will be transmitted immediately. When the "off delay" time lapses, transmitter will transmit another burst. The transmitter will cycle (transmission and off delay) indefinitely, if at least one code switch from the 12-Way code switch is ON and supply is connected.
|
|
Continuous transmission
Transmitter will transmit continuously, if at least one code switch from the 12-Way code switch is ON and supply is connected. A transmission limit of 5 minutes is used to comply with local radio regulations.
To activate a receiver longer than 5 minutes, use a delay off feature in the receiver (FMR15101) and transmitter. The delay off feature in the receiver needs to be set more than the transmitter. This ensures that the transmitter keeps resetting the off delay in the receiver. Refer to Application Note
|
Transmitter mode for FMT15108 is 5 min Continuous transmission*
Products in the Range
Click image to enlarge |
Click image to enlarge |
Click image to enlarge |
Click image to enlarge
|
FMT15101E
1-Channel, Enclosed |
FMT15102E
2-Channel, Enclosed |
FMT15104E
4-Channel, Enclosed |
FMT15108E
8-Channel, Enclosed |
Click image to enlarge |
Click image to enlarge |
Click image to enlarge |
Click image to enlarge
|
FMT15101
1-Channel |
FMT15102
2-Channel |
FMT15104
4-Channel |
FMT15108
8-Channel |
Technical Data
Power Supply |
11 to 13.6 VDC (for constant RF-Output), screw type terminal. Absolute maximum 14VDC. |
Current Consumption |
Nominal 85mA at 12VDC supply (Transmitting)
Nominal 12mA on standby
|
Operating Frequency |
151.6MHz (8 selectable frequencies within 150.900 - 151.600MHz with 100KHz spacing available). |
Carrier Frequency Tolerance |
VCO with 10ppm Crystal Controlled reference Oscillator. (0-50°C) |
R.F. Output Power |
100mW, into 50 ohms SO239 socket. |
Antenna |
50Ω, 151MHz Antenna, Elsema ANT151M for maximum performance. A piece of approximately 1metre wire can be used for short range applications |
Type Of Emission |
Narrow-band-width Frequency Modulation |
Frequency Deviation |
+-5 kHz |
Spurious Transmission |
< -40dBm (100nW) |
Baud Rate |
40 to 4800bps |
Digital Coding System |
On-board 12-way code switch
|
Dimension |
90 X 56 X 15 mm (PCB Assembly) |
140 X 60 X 34 mm (Enclosed). |
Mounting Hole Size |
4.00 mm or 5/32 " (PCB Assembly) |
4.76 mm or 3/16" |
Mounting Hole Spacing |
Length 76 mm (3.00")
Width 45 mm (1.77") (PCB Assembly) |
Length 125 mm (4.92")
Width 45 mm (1.77") |
Weight |
35 grams (PCB Assembly) |
225 grams |
Useable Operating Range |
Up to 6000 metres, depending on installation and type of antenna used. Recommended Antenna is Elsema ANT151M |
Compatible Receivers |
Elsema type FMR151... series (With correct setting on the dip switch) |
Wiring Diagram
|
