YOKOGAWA FA-M3 VITESSE F3CX04-0N, User Manual

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A2-2
IM 34M06H63-01E 2nd Edition:Jul.16,2015-00
A2.3 General Specifications
Table A2.2 lists the general specifications of the F3CX04-0N temperature monitoring
module.
Table A2.2 General Specifications
Item Specification
Number of channels 4
Isolation
Between input terminals and internal circuit
Isolated by photocouplers and transformers
(tested for 1500 V AC voltage withstanding)
Between input terminals
Alarm types
4 types of alarm:
input upper limit alarm, input lower limit alarm
(with or without waiting for each of the above 2 alarms)
Number of alarm outputs (input relays) 4 points per channel (Only alarms 1 and 2 have input relays)
Alarm delay timer Yes
Warm-up time 30 minutes min.
Max. allowable ambient temperature change rate
*1
10

C/h max.
Mounting position Horizontal or inverted orientation not allowed
External connection 18-point terminal block with M3.5 screws
External dimensions
* 2
28.9 (W) x 100 (H) x 106.1 (D) mm
Current consumption 440 mA at 5 V DC
Weight 200 g
*1: The stated accuracy for the reference junction for thermocouple input deteriorates if the ambient temperature change exceeds this rate.
*2: External dimensions excluding protrusions (for details, see the External Dimensions drawing).
A2.4 Input Specifications
Table A2.3 lists the input specifications of the F3CX04-0N temperature monitoring
module.
Table A2.3 Input Specifications
Item Specification
Input sampling period
*1
200 ms for 4 channels, or 100 ms for 2 channels
Input types and ranges
See Table A2.4, “Instrument Range and Accuracy”.
Individual inputs separately configurable by software or collectively by
hardware
Thermocouple input : 15 ranges
RTD input : 9 ranges
DC voltage input : 6 ranges
Burnout detection
hermocouples or RTDs are checked for burnout.
Up-scale, down-scale, or none may be selected.
Detection current
Thermocouple 100 nA max.
RTD 100 nA max.
Input insulation resistance 1 M

min.
Allowable signal
source resistance
Thermocouple or DC mV input 250

max.
DC voltage input 2 k

max.
Allowable wiring
resistance
RTD 10

max. per wire (three wires must have the same resistance)
Measuring current RTD Approx. 270 μ A
Reference junction
compensation
Thermocouple
*2

2.0

C (0 to 55

C)
Allowable input voltage range -20 to 20 V DC
Noise reduction
*3*4
Common mode 120 dB (50/60 Hz) min.
Normal mode 40 dB (50/60 Hz) min.
Effect of ambient temperature

0.01%/

C or

1 μ V/

C, whichever is greater
*1: If input sampling period is set to 100 ms for 2 channels, only CH1 and CH2 are available.
*2: This value assumes that all input terminals are correctly wired (that is, solderless termination, wire diameters and connections are correct).
*3: This value assumes that the power supply frequency is correctly selected.
*4: This module continues to operate at a input accuracy of ±0.5% max. of F.S. during the radiated electromagnetic field test.