Teledyne ULTRAFLOW 150, Operation Manual, Page: 18 / 162

ULTRAFLOW 150 GAS FLOW AND TEMPERATURE MONITOR
3.5 6PT I/O PC BOARD OPTION FOR 150DI
The Six Point I/O Board is an optional device intended to provide a low
cost Direct Interface feature to the Ultraflow 150DI where analog output
and control signals are supplied directly from the Transducer Interface
Enclosure (TIE) Assembly. The PC Board has 2 analog outputs, 2 digital
inputs and 2 relay outputs. The Local User Interface Key Pad and Display
option comes standard with the 6PT I/O option. The configuration of the
6PIO Board is software selectable using the PC to Modbus interface
software supplied with the Ultraflow 150DI. Below are the specifications.
The details on this option are described in its own instruction manual.
Six Point I/O Board Specifications
SIX POINT I/O BOARD ANALOG OUTPUTS
Number
2
Isolation Type
Optical & capacitive barriers; channel to channel, channel
to circuit common & earth
Minimum Isolation Voltage
500Vpeak*, 500VDC*
Output Type 4-20mA with live 4mA zero, OR 0-20mA w/o live zero
Maximum Load Resistance 900 ohms
Maximum Offset
±0.05% of full scale
Total Output Error ±0.30% of full scale
SIX POINT I/O BOARD DIGITAL INPUTS
Number 2
Modes Isolated and Non-isolated
Isolated Mode Minimum Isolation
Voltage
500Vrms*
Isolated Mode Minimum Actuation
Voltage
5VDC (user supplied)
Isolated Mode Maximum Actuation
Voltage
24VDC (user supplied)
Isolated Mode Maximum Input Current
50mA @ 24VDC
Non-Isolated Mode Actuation
Condition Dry contact closure
Non-Isolated Mode Internal
Operating Voltage 5VDC
SIX POINT I/O BOARD RELAY OUTPUTS
Number
2 SPST, N.O. (Single Pole Single Throw, Normally Open or
Normally Closed [jumper selectable])
Minimum Isolation
500Vrms
*
Maximum Contact Voltage
250VAC
Maximum Contact Current 1Amp AC, 1Amp DC
*
I/O wires with respect to earth (common mode).
3-5