Laurel-electronics LTM CTR SERIES PULSE, AC or PROCESS TOTALIZER INPU User Manual download pdf (Page 38)

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19. “CTR” TRANSMITTER SPECIFICATIONS

Mechanical

Case Dimensions .........................................................................................120 x 101 x 22.5 mm

Case Mounting................................................................................35 mm DIN rail per EN 50022

Electrical Connections..............................................................Detachable screw plug connectors

Environmental

Operating Temperature ...............................................................................................0°C to 55°C

Storage Temperature ...............................................................................................-40°C to 85°C

Relative Humidity........................................................... 95% from 0°C to 40°C, non-condensing

Power & Electrical

Power to Transmitter ................. 95-240 Vac ±10% or 90-300 Vdc (DC range is not UL certified)

.................................................................... 12-30 Vac or 10-48 Vdc (low voltage power option)

Power Isolation.................. 250 Vrms between power, analog output, signal input, and serial I/O

Transmitter Setup

Selection of Signal Ranges & Temperature Sensors............Jumpers on signal conditioner board

Selection of Serial Format (RS232 or RS485) & Excitation Level ............Jumpers on main board

Programming................ Via RS-232 from PC using Instrument Setup software and CBL04 cable

Analog Output

Output Levels................0-20 mA, 4-20 mA or 0-10V. Voltage or current selectable at connector.

Compliance at 20 mA..................................................................................10V (0-500 ohm load)

Compliance at 10V.........................................................................2 mA (5 kohm minimum load)

Output Resolution.......................................................................................16 bits (65,536 steps)

Output Accuracy ............................±0.05% of full span for DC inputs, ±0.1% for AC RMS inputs

Output Update Rate .............................................. 60/sec at 60 Hz power, 50/sec at 50 Hz power

Output Filtering .........................................................................................Digitally programmable

Serial I/O (standard)

Serial Formats.......................RS232 or half-duplex RS485 (jumper selectable, default is RS232)

Protocol ...................................................................................................................Custom ASCII

Comm. Connector........................................ Detachable 3-position plug for TX, RX, Comm. GND

Transducer Excitation Output (standard)

Output Isolation ....................................................................................... 50 Vdc to meter ground

Selectable levels ................. 5 Vdc ± 5%, 100 mA; 10 Vdc ± 5%, 120 mA; 24 Vdc ± 5%, 50 mA

Dual Relay Output (standard)

Relay type ...................................................Two solid state relays, SPST, normally open, Form A

Load rating ................................................................................... 130 mA at 140 Vac or 180 Vdc

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Laurel-electronics LTM CTR SERIES PULSE, AC or PROCESS TOTALIZER INPU User Manual Page 38