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General
Environmental -20 to 60degC 0 - 99% RH
EMC compliant 89/336 EEC, AS3548
Housing - IP65 painted aluminium enclosure 160 x 64 x 36 mm
Weatherproof connector for external connections.
BNC connector for aerial or coaxial cable connection.
LED indicators - Radio TX, Operation OK
Power Supply
505U-2-E
- External supply 11.5-15.0 VDC overvoltage/reverse power protected.
- Power consumption (12VDC) -
- quiescent (sleep mode) 120µA
- operating mode 10mA + analogue loop
- during radio transmission (100 msec)
- 170mA @ 250mW
- 100mA @ 100mW
- 50mA @ 10mW
- Analogue loop supply internally generated 12VDC, 50mA
- Power consumption increases for pulse inputs > 1Hz.
505U-2-B
- Suitable for use with BU-5 battery pack or any 3.5 - 5VDC battery pack.
- Life of BU-5 is up to 1.4 years depending on input configuration
- Internal monitoring of battery low voltage status - may be transmitted to remote modules as an "input".
- Analogue loop supply internally generated 10VDC, 50mA
- Power consumption increases for pulse inputs > 1Hz.
Input Types
| I/O |
Power Supply |
Value |
| Digital |
External |
Status |
| Pulse |
External |
Count |
| Analogue |
External |
Analogue |
| Setpoint |
Internal |
Status |
| Battery low Volts |
Internal |
Status |
Digital/Pulse Input
Digital Inputs
- two inputs, suitable for voltage free contacts / NPN or TTL 0-1.5 VDC on / 3.5-13VDC off
- transmitted as digital status on change of input signal and on time elapsed since last transmission - update time period 1 min - 5.3 days, a separate update time may be configured for faster updates when the digital input is "on"
Pulse Input
- max rate 100 Hz (5 msec on time), transmitted as pulse count transmissions occur when count change exceeds configured amount, or on time elapsed since last transmission - update time 1 min - 5 days - change transmissions may be suspended if pulse rate exceeds a configured value to reduce radio traffic.
- Up/Down Pulse Input - The two pulse inputs may be configured to a single count, to suit quadrature or incremental shaft encoder transducers.
Analogue Input
- 0 to 20 mA (4 - 20mA, 0 - 10mA) "floating" differential input
- common mode voltage 15V
- resolution 12 bit
- accuracy < 0.1%
- analogue measurement continuous or sampled - sample time configurable 1 min - 5 days
- transducer warm-up time configurable 1 - 59 sec
- analogue value transmitted on change of input signal or time elapsed since last transmission - change sensitivity configurable from 0.8 to 50%, update time configurable from 1 min - 5 days
Setpoint Status
high and low setpoints generate internal digital status - setpoint status sets (on) when analogue value < low setpoint and resets (off) when analogue value > high setpoint status transmitted as per digital input
Serial Port
RS232 DB9 female DCE, used for configuration and diagnostics
Radio Transmitter
Synthesised transmitter
Frequency range 405 - 490 MHz.
Channel spacing 12.5KHz
Frequency configurable range 10MHz
Transmitter power (factory set) -
- 500mW with 3dB aerial
- 100mW / 10mW 0dB aerial
Conforms to EN 300 220, MPT1329, AS4268.2, NZ RFS29
Line of sight range -
- 10km (6 mls) @ 500mW
- 5km @ 100mW
- 2km @ 10mW
Each transmission may be configured to be sent 1 to 5 times.
Product Types
External 12VDC supply only - 505U-2-E
Battery Pack supply (3.5 - 5VDC) - 505U-2-B
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