Watlow Series PD Ethernet Enabled Temperature and Process Controller - Manual (Page 26)

W a t l o w S e r i e s P D
■
2 4
■
A p p e n d i x
Specifications
(2341)
Controller
• Microprocessor based user-selectable control
modes
• Single or dual channel universal inputs
• Current transformer inputs to monitor heater cur-
rents
• Digital inputs
• Up to four programmable outputs
• Update rates, inputs = 10Hz, outputs = 10Hz
Operator Interface
• Browser based HMI (human machine interface)
Standard Conditions For Specifications
• Ambient temperature 25°C (77°F) ±3°C, rated line
voltage, 50 to 60Hz, 0 to 90% RH non-condensing,
15-minute warm-up
Universal Analog Input
• Sample rate: 10 Hz
Thermocouple
• Type J, K, T, N, E, C, (W5), D (W3), PTII (F), R, S,
B thermocouple types.
• >20 M
Ω
input impedance
• Maximum 20
Ω
source resistance
RTD
• 2- or 3-wire platinum, 100
Ω
• DIN curve (.00385 curve)
• 250 µA nominal RTD excitation current
Process
• Range selectable: 0 to 10VÎ (dc), 0 to 20 mA. (Can
reverse low and high values.)
• Voltage input impedance 20 k
Ω
• Current input impedance 100
Ω
• Minimum current source resistance 1 M
Ω
• Input resolution 25,000 bits (approximately) at full
scale
Input Accuracy Span Ranges
Thermocouple Input
• Calibration accuracy and sensor conformity: ±0.1%
of input span ±1°C at standard conditions
• Temperature stability: ±0.2 degree per degree
change in ambient for J, K, T, N, E, PTII
±0.5% for C, D, R and S
RTD Input
• Calibration accuracy ±0.1% of input range ±1°C at
standard conditions
• Temperature stability: ±0.05 degree per degree
change in ambient
Process Input
• 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
Digital Input
• Contact closure or voltage input
• Input impedance:10 k
Ω
• Sample rate: 5 Hz
• Resistance/contact input
Input high state >7 k
Ω
Input low state 0-2 k
Ω
• Voltage input
Input high state 2-36 VdcÎ
Input low state 0-1 VdcÎ
Current Transformer Input
• Input range: 0-50 mA‡ (ac)
• Input impedance:100
Ω
• Sample rate: 5 Hz
Allowable Operating Ranges
Type J: -210 to 1,200°C or -346 to 2,192°F
Type K: -270 to 1,372°C or -454 to 2,502°F
Type T: -270 to 400°C or -454 to 752°F
Type N: -270 to 1,300°C or -454 to 2,372°F
Type E: -270 to 1000°C or -454 to 1,832°F
Type C: 0 to 2,315°C or 32 to 4,200°F
Type D: 0 to 2,315°C or 32 to 4,200°F
Type PTII (F): -3 to 1,396°C or 25 to 2,545°F
Type R: -50 to 1,767°C or -58 to 3,214°F
Type S: -50 to 1,767°C or -58 to 3,214°F
Type B: 0 to 1,820°C or 32 to 3,308°F
DIN -200 to 800°C or -328 to 1,472°F
Process -1,999 to 9,999 units
Type J: 0 to 750°C or 32 to 1,382°F
Type K: -200 to 1,250°C or -328 to 2,282°F
Type T: -200 to 350°C or -328 to 662°F
Type N: 0 to 1,250°C or 32 to 2,282°F
Type E: -200 to 800°C or -328 to 1,470°F
Type C (W5): 0 to 2,315°C or 32 to 4,200°F
Type D (W3): 0 to 2,315°C or 32 to 4,200°F
Type PTII (F): 0 to 1,393°C or 32 to 2,540°F
Type R: 0 to 1,450°C or 32 to 2,642°F
Type S: 0 to 1,450°C or 32 to 2,642°F
Type B: 870 to 1,700°C or 1,598 to 3,092°F
RTD (DIN): -200 to 800°C or -328 to 1,472°F
Process: -1,999 to 9,999 units
Appendix
6