 |
|
Type of Input / Output |
Brief Description |
No. of Channels |
Barrier / Isolator Type |
| Digital Input |
 |
NAMUR sensor or mechanical contact input to volt free relay output
|
1 |
|
|
2 |
|
|
4 |
|
| Digital Output |
   |
IS power supply output, suitable for solenoid valves, LED clusters, audible alarms etc. |
1 |
|
|
1 |
|
|
2 |
|
|
2 |
|
| Pulse Input |
 |
NAMUR sensor or mechanical contact input to solid state or 4-20mA current output. |
1 |
|
|
1 |
|
|
1 |
|
|
2 |
|
| Analogue Input |
 |
Current repeaters for 4-20mA field transmitters. 0-20mA input to 0-20mA output |
1 |
|
|
1 |
|
|
2 |
|
| HART Analogue Input |
 |
Current repeaters for SMART 4-20mA field transmitters. 0-20mA input to 0-20mA output |
1 |
|
|
1 |
|
|
1 |
|
|
2 |
|
| Current Source Input |
 |
4-20mA current from a separately powered (EEx d) transmitter |
1 |
|
|
1 |
|
| Analogue Output |
 |
Current driver for I/P converters, positioners, IS displays etc. 0-20mA input to 0-20mA output |
1 |
|
|
2 |
|
|
1 |
|
| HART Analogue Output |
 |
Current driver for SMART I/P converters and positioners. 0-20mA input to 0-20mA output |
1 |
|
|
2 |
|
|
1 |
|
| Temp Input (T/C) |
 |
Thermocouple input to either mV, 4-20mA, or 1-5V output |
1 |
|
|
1 |
|
|
1 |
|
| Temp Input (RTD) |
 |
Resistance temperature device to either resistance, 4-20mA or 1-5V output. |
1 |
|
|
1 |
|
|
1 |
|
| Fire and Smoke Detectors |
 |
Loop powered devices that mimic the field circuit. 0-40mA IN to 0-40mA OUT. |
1 |
|
|
2 |
|
| Voltage Sources |
 |
Voltage from a field device, repeated into a safe area either as voltage or a 4-20mA signal. |
1 |
|
|
1 |
|
|
1 |
|
|
1 |
|
| Potentiometer |
 |
Position of the potentiometer wiper is returned in V or I format. |
1 |
|
| Resistive Devices |
|
The resistance of the field device is returned in either a resistance or current format. |
1 |
|
|
1 |
|
| Trip Amplifier |
 |
Field inputs covering Voltage, Current, Thermocouples, and RTDs. |
1 |
|
| Load Cells / Strain Gauges |
 |
The conventional method is to use separate isolators, one for power, one for signal, one to monitor |
1 |
|
|
1 |
|
| Rotation Monitor |
 |
Pulse input from the field to give an alarm when in either under or over-speed situation. Direction of rotation and synchronisation (UFT only) |
1 |
|
|
1 |
|
| Vibration Monitor |
 |
For use with vibration monitoring equipment such as Bentley Nevada |
1 |
|
|
