1. General Introduction
SAI143 Analog Input Modules can be installed on Field Control Unit or Safety node unit for 4 to 20mA Current Input signals from field instrument or valve positioners, HART communication function is optional. Three types of connection selectable as Pressure clamp terminal, MIL connector cable or dedicated cable KS1, Dual-redundant communication is available by installing two communication modules on the same unit.
2. Standard Specification
Main Characters | Description |
Number of input channels | 16, isolated |
Input signal | 4 to 20 mA |
Allowable input current | 0 to 25 mA |
Withstanding voltage | 1.5 kV AC between input signal and system for 1 minute |
Data update frequency | 40 ms |
Transmitter power supply | 16.15 V minimum (at 20 mA), 26.4 V maximum (at 0 mA) |
Setting of 2-wire or 4-wire transmitter | Individual channel setting, Changed by setting pins |
Temperature drift | ±16 μA per 10 ˚C |
Maximum current consumption | 320 mA (5 V DC), 550 mA (24 V DC) |
External connection | Pressure clamp terminal, MIL connector cable, dedicated cable (KS1) |
HART communication | Available |
3. Model Selection of AAI143 Analog Input Modules
Model | Suffix Codes | Description | |||
SAI143 | Analog Input Module (4 to 20 mA, 16-channel, Isolated) | ||||
-S | Standard type | ||||
-H | With HART communication [Release: R1.02.00] | ||||
5 | For pressure clamp terminal block or MIL cable with no explosion protection | ||||
6 | With signal cable interface adapter and no explosion protection | ||||
E | For pressure clamp terminal block or MIL cable with explosion protection | ||||
F | With signal cable interface adapter and explosion protection | ||||
3 | With ISA Standard G3 and temperature (-20 to 70 ºC) | ||||
C | With ISA Standard G3 and high-density installation (-20 to 70 ºC) | ||||
Option Code | /A4S00 | With pressure clamp terminal block for analog [Model: STA4S-00] | |||
/A4S10 | With pressure clamp terminal block for analog (with surge absorber) [Model: STA4S-10] | ||||
/A4D00 | With dual-redundant pressure clamp terminal block for analog [Model: STA4D-00] | ||||
/A4D10 | With dual-redundant pressure clamp terminal block for analog (with surge absorber) [Part name: STA4D-10] | ||||
/PRP | With prevention pin of false insertion | ||||
/CCC01 | With connector cover for MIL cable (for flat ribbon cable) [Model: SCCC01] | ||||
4.Typical Order Codes
Typical order codes | Remarks |
SAI143-S53 | Standard type |
SAI143-S63 | Standard type with KS interface adaptor |
SAI143-H53 | Hart type |
SAI143-H63 | Hart type with KS interface adaptor |
5. HART Communication
Analog I/O module with HART communication on ProSafe-RS allows Plant Resource Manager (PRM) to manage the HART communication devices connected to input and output modules on SCS. Also, the analog output module allows PRM client to conduct Partial Stroke Test (PST) on HART-supported valve positioner equipped with the PST function.
The HART communication functions on ProSafe-RS are interference-free and have no impact on the safety functions on SCS.
6. External Dimension
