Yokogawa STARDOM
Yokogawa Analog Input Module NFAI141-S51
Standard Specifications
Current/Voltage Input Modules (Non-Isolated)
These modules mainly receive 4 to 20 mA DC or 1 to 5 V DC normalized signals from 2-wire/4-wire transmitters.
Items
Specifications
Model
NFAI141 (*3) (*5)
NFAV141
NFAV142
Number of input channels
16, non-isolated
(differential input)
Input signal
4 to 20 mA
1 to 5 V (allowable common mode voltage ±1 V or less)
-10 to 10 V
Allowable input current/voltage
27 mA
±7.5 V
±13 V
Overcurrent protection
Provided
—
Input resistance
Power ON
250 Ω (*1)
1 MΩ or more
Power OFF
500 kΩ or more
340 kΩ or more
660 kΩ or more
Accuracy
±0.1% of full scale
Data refresh cycle
10 ms
Input step response time
100 ms
Transmitter power supply
22.8 to 26.4 V (output current
limit: 27 mA) (*2)
Setting of 2-wire or 4-wire transmitter
For each channel by setting pin
Temperature drift
Max. ±0.01%/°C
Maximum current consumption
310 mA(5 V DC)
350 mA (5 V DC)
450 mA (24 V DC)
Weight
0.2 kg
External connection
Pressure clamp terminal, MIL connector cable
HART Communication(*4)
Available
*1: A voltage drop of up to 3 V may occur due to the internal protection circuit. Yokogawa Analog Input Module NFAI141-S51 *2: Depends on the actual voltage applied by analog field power supply (24 V DC) via base module. *3: When this I/O module is used with 2-wire transmitter, 24 V DC needs to be supplied to an analog field power supply terminal of the power supply module. Yokogawa Analog Input Module NFAI141-S51 *4: For HART function specifications, refer to “HART Communication Functions” (GS 34P02Q53-01E). *5: A Zener barrier is not allowed to be connected with this module. Use an isolation barrier when the module is used in intrinsically safe application.
Models and Suffix Codes for Yokogawa Analog Input Module NFAI141-S51
Description Model NFAI141 Analog Input Module (4 to 20mA, 16-channel, Non-Isolated) Suffix Codes -S Standard type -H With HART Communication 5 With no explosion protection E With explosion protection 0 Basic type 1 With ISA Standard G3 option OptionCodes /A4S00 With Pressure Clamp Terminal Block for Analog [Model: NFTA4S-00] /A4S10 With Pressure Clamp Terminal Block for Analog (surge absorber) [Model: NFTA4S-10] /CCC01 With Connector Cover for MIL Cable [Model: NFCCC01]
Description
NFAI141
Analog Input Module (4 to 20mA, 16-channel, Non-Isolated)
Suffix Codes
-S
Standard type
-H
With HART Communication
5
With no explosion protection
E
With explosion protection
0
Basic type
1
With ISA Standard G3 option
OptionCodes
/A4S00
With Pressure Clamp Terminal Block for Analog [Model: NFTA4S-00]
/A4S10
With Pressure Clamp Terminal Block for Analog (surge absorber) [Model: NFTA4S-10]
/CCC01
With Connector Cover for MIL Cable [Model: NFCCC01]