Watlow Series 97 Appendix ■ A.19
Communications
• EIA/TIA-485, EIA/TIA-232
• Opto-isolated
• Modbus
™ RTU protocol
• 1200, 2400, 4800, 9600, 19200 baud rates
• 32 maximum units can be connected (With additional 485
repeater hardware, up to 247 units may be connected)
Accuracy
• Input ranges
Type J: 32 to 1382°F or 0 to 750°C
Type K: -328 to 2282°F or -200 to 1250°C
Type T: -328 to 662°F or -200 to 350°C
Type N: 32 to 2282°F or 0 to 1250°C
Type E: -328 to 1470°F or -200 to 900°C
Type C(W5): 32 to 4200°F or 0 to 2315°C
Type D(W3): 32 to 4200°F or 0 to 2315°C
Type PTII: 32 to 2540°F or 0 to 1393°C
Type R: 32 to 2642°F or 0 to 1450°C
Type S: 32 to 2642°F or 0 to 1450°C
Type B: 1598 to 3092°F or 870 to 1700°C
DIN: -328 to 1472°F or -200 to 800°C
JIS: -328 to 1166°F or -200 to 630°C
Thermocouple Inputs
• Calibration accuracy ±0.1% of span ±1°C at standard
conditions
Exceptions:
Type T; 0.12% of span for -200°C to -50°C,
Types R and S; 0.15% of span for 0°C to 100°C
Types B; 0.24% of span for 870°C to 1700°C
• Accuracy span: 1000°F/540°C minimum
• Temperature stability: ±0.1 degree per degree change in
ambient
RTD Inputs
• Calibration accuracy ±0.1% of span ±1°C at standard
conditions
• Accuracy span: 1000°F/540°C minimum
• Temperature stability: ±0.05 degree per degree change in
ambient
Agency Approvals
• FM approved
Modbus™ is a trademark of AEG Schneider Automation.
UL
®
is a registered trademark of the Underwriter’s Laboratories, Inc.
Terminals
•Touch safe
•22 to 12 AWG
Power
•100-240VÅ (ac) +10%, -15%; 50/60Hz, ±5%
•24-28VÅ (ac) or VÎ (dc) +10%, -15%; 50/60Hz, ±5%
•5.5 VA maximum power consumption
•Data retention upon power failure via nonvolatile memory
Operating Environment
•32 to 149°F, 0 to 65°C
•0 to 90% RH, non-condensing
•Storage temperature: -40 to 185°F, -40 to 85°C
Dimensions
•Width 2.05 in or 52 mm
•Height 2.05 in or 52 mm
•Length 4.2 in or 107 mm
•Depth behind panel surface 3.875 in or 98.4 mm
•Approximate controller weight 0.4 lbs (0.2 kg)
Allowable Operating Ranges
Type J: 1.0 32 to 1500°F or 0 to 815°C
0.1 32.0 to 999.9°F or 0.0 to 815.0°C
Type K: 1.0 -328 to 2500°F or -200 to 1370°C
0.1 -199.9 to 999.9°F or -199.9 to 999.9°C
Type T: 1.0 -328 to 750°F or -200 to 400°C
0.1 -199.9 to 750.0°F or -199.9 to 400.0°C
Type N: 1.0 32 to 2372°F or 0 to 1300°C
0.1 32.0 to 999.9°F or 0.0 to 999.9°C
Type E: 1.0 -328 to 1470°F or -200 to 800°C
0.1 -199.9 to 999.9°F or -199.9 to 800.0°C
Type C: 1.0 32 to 4200°F or 0 to 2315°C
0.1 32.0 to 999.9°F or 0.0 to 999.9°C
Type D: 1.0 32 to 4200°F or 0 to 2315°C
0.1 32.0 to 999.9°F or 0.0 to 999.9°C
Type PTII: 1.0 32 to 2543°F or 0 to 1395°C
0.1 32.0 to 999.9°F or 0.0 to 999.9°C
Type R: 1.0 32 to 3200°F or 0 to 1760°C
Type S: 1.0 32 to 3200°F or 0 to 1760°C
Type B: 1.0 32 to 3300°F or 0 to 1816°C
DIN 1.0 -328 to 1472°F or -200 to 800°C
0.1 -199.9 to 999.9°F or -199.9 to 800.0°C
JIS 1.0 -328 to 1166°F or -200 to 630°C
0.1 -199.9 to 999.9°F or -199.9 to 630.0°C
Note: These specifications are subject to change without prior notice.
232
Universal 485
Input Event Limit Alarm Retransmit Comm
Input 1
Input 2
Output 1
Output 2
Output 3
Output 4
Functionality Matrix
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