505U-K Radio Telemetry Module

Key Features:

The 505/905U-K family of products feature ultra-low power consumption and small I/O counts for transmission to other ELPRO I/O and gateway products. Capable of thousands of units in a network,. With robust aluminum enclosures (IP66) and the capability of powering a loop-powered device (24VDC, 50mA), these units are ideal for remote applications where power constraints may be a concern
•    Multiple power supply options including  battery-only supply with ultra low power consumption
(reverts to ‘sleep’ mode).
•    Input-only transmitter unit (2 or 4 DI/PI, 1  AI) able to be connected to multi I/O and/or gateway units – up to 3000 units in a system.
•    Peer-to-peer communications with exception-reporting, reliable self-checking via update time and secure data encryption.
•    External inputs plus internally calculated values including analog setpoint status, pulse rate and pulse total, power/ battery supply voltage, power supply alarm.
•    Can connect to up/ down counter transducers such as shaft-encoders.
•    Configurable repeat transmissions to five times for message reliability.

Product Details

Transmitter and Receiver


Frequency
868.525 MHz
869.875 MHz

Transmit power
500 mW
5 mW

Transmission
Frequency modulation (FM)

Modulation
Digital frequency shift key (DFSK)

Channel spacing
250 kHz

Data rate
19.2 kbps with forward error correction

Range (LoS)
 6.2 miles (10 km) @ 500 mW a cEIRP
0.62 miles (1 km) @ 5 mW b cEIRP

Antenna connector
Female SMA standard polarity Internal gas discharger arrestor protection

Input and Output


Digital inputs
TTL voltage 0–1.5 Vdc (on), 3.5–13 Vdc (off)
Surge protected, not isolated, voltage-free/NPN contacts 2 DI (external, status)

Analog inputs
0–24 mA or 0–10V (selectable, over range indication 0–25 mA)
Floating differential inputs, common mode voltage 27V
Resolution 12-bit, accuracy <0.1%
24 Vdc @ 50 mA for external loops provided

Pulse inputs
As per digital input specifications above
Maximum pulse rate 10 kHz (50 kHz possible on PI1 using a  configurable divider)

Pulse width
 minimum 0.2 ms, volt-free contacts 300 Hz
2 PI (pulse total, count, rate)

Serial Port


RS-232
9-pin DB-9 female connector (use for programming only)

Data rate
(bps) 9600 bps

Serial settings
8 data bits, 1 stop, no parity

Protocols and Configuration


System address
Configurable system address

Protocols supported
ELPRO WIBnet™ up to four retries, CRC error checking

User configuration
E-series configuration utility

Configurable parameters
Individual I/O mappings, analog and digital debounce, update  time, analog set points, and sensitivities

Security
64-bit encryption on radio

LED Indication and Diagnostics


LED indication
OK/active, TX/link

Reported diagnostics
I/O status

General


Temperature rating
–40 to +140°F (–40 to +60°C)

Humidity rating
0–99% RH noncondensing

Power Supply


Nominal supply
6 to 30 Vdc, under/over voltage protection
9 Vdc battery supply

Average current draw
10 mA @ 12 Vdc (idle) + analog loop 2 (internally generated,  24 Vdc/50 mA

Sleep mode
140 μA

Transmit current draw
300 mA @ 12 Vdc

Battery (optional  ELPRO BU5-2)
6 x AA alkaline batteries 9V, up to 1.4-year service life  depending on input configuration
Enclosure specifications as per 505U-K enclosure
Temperature dependent on battery type used

Battery (optional  ELPRO BU5-2)
6 x AA alkaline batteries 9V, up to 1.4-year service life  depending on input configuration
Enclosure specifications as per 505U-K enclosure
Temperature dependent on battery type used

Compliance


EMC CE; EN 301 489
RF (radio) EN 300 220; AS 4268.2; AS 3548
Safety IEC 60950 (RoHS compliant)
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