Watlow Series PD Ethernet Enabled Temperature and Process Manuale Utente Scaricare il pdf (Pagina 26)

Watlow Series PD ■ 24 ■ Appendix

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 MΩ 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 kΩ

• Current input impedance 100 Ω

• Minimum current source resistance 1 MΩ

• 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 kΩ

• Sample rate: 5 Hz

• Resistance/contact input

Input high state >7 kΩ

Input low state 0-2 kΩ

• 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:100Ω

• 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

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