Watlow D4T Data Logger
•
206
•
Chapter 6 Appendix
Flex Modules - High Density I/O Specifications
4 Universal Inputs
• Thermocouple, grounded or ungrounded sensors
•
>20MΩ input impedance
•
Max. of 2KΩ source resistance
•
RTD 2 or 3 wire, platinum, 100Ω and 1000Ω @ 32°F (0°C) calibration to DIN curve
(0.00385Ω/Ω/°C)
•
Process, 0-20mA @ 100Ω ,or 0-10V
Î
(dc) @ 20kΩ input impedance; scalable, 0 -
50mV
Voltage Input Ranges
- Accuracy ±10mV ±1 LSD at standard conditions
- Temperature stability ±100 PPM/°C maximum
Milliamp Input Ranges
- Accuracy ±20µA ±1 LSD at standard conditions
- Temperature stability ±100 PPM/°C maximum
Resolution Input Ranges
- 0 to 10V: 200 µV nominal
- 0 to 20 mA: 0.5 mA nominal
•
Potentiometer: 0 to 1,200Ω
• Inverse scaling
Input Type
Max Error @
25 Deg C
Accuracy
Range Low
Accuracy
Range High
Units
J
±1.75
0
750
Deg C
K
±2.45
-200
1250
Deg C
T (-200 to 350)
±1.55
-200
350
Deg C
N
±2.25
0
1250
Deg C
E
±2.10
-200
900
Deg C
R
±3.9
0
1450
Deg C
S
±3.9
0
1450
Deg C
B
±2.66
870
1700
Deg C
C
±3.32
0
2315
Deg C
D
±3.32
0
2315
Deg C
F (PTII)
±2.34
0
1343
Deg C
RTD, 100 ohm
±2.00
-200
800
Deg C
RTD, 1000 ohm
±2.00
-200
800
Deg C
mV
±0.05
0
50
mV
Volts
±0.01
0
10
Volts
mAdc
±0.02
2
20
mAmps DC
mAac
±5
-50
50
mAmps AC
Potentiometer,
1K range
±1
0
1000
Ohms