Watlow EZ-ZONE RM Limit Module Rev C - Manual (Page 120)

Watlow EZ-ZONE ® RML Module
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117
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Appendix
RML Specifications
Line Voltage/Power
• 20.4 to 30.8Vı (ac/dc), 50/60Hz, ±5 percent
• Any external power supply used should comply with a class 2 or
SELV rating. (See specific module specification listing for maxi-
mum VA power consumption)
• Data retention upon power failure via nonvolatile memory
• Compliant with Semi F47-0200, Figure R1-1 voltage sag require-
ments
Environment
• 0 to 149°F (-18 to 65°C) operating temperature
• -40 to 185°F (-40 to 85°C) storage temperature
• 0 to 90 percent RH, non-condensing
• Rail Mount modules are considered to be open type equipment
needing to be installed in a fire and shock protection enclosure,
such as a NEMA Type 1 enclosure; unless all circuit connections
are Class 2 or SELV (Saftey Extra Low Voltage)
Accuracy
• Calibration accuracy and sensor conformity: ±0.1% of span, ±1°C
@ the calibrated ambient temperature and rated line voltage
• Types R, S, B; 0.2%
• Type T below -50°C; 0.2%
• Calibration ambient temperature @ 77 ±5°F (25±3°C)
• Accuracy span :1000 °F (540°C) min.
• Temperature stability: ±0.1 °F/°F (±0.1°C/°C) rise in ambient
max.
Agency Approvals
•UL ® Listed to UL ® 61010-1 File E185611
•UL® Reviewed to CSA C22.2 No.61010-1-04
•FM Class 3545 File 3039786 temperature limit switches
•CE-See Declaration of Conformity RoHS and W.E.E.E.
compliant
Serial Communications
• All modules ship with isolated Standard Bus protocol for con-
figuration and communication connection to all other EZ-ZONE
products. As an optional feature Modbus RTU can also be or-
dered.
Optional User Interface (RUI)
• 1⁄16 DIN
• Dual 4 digit, 7-segment LED displays
• Seven-segment address LED, programmed via push-button
switch
• Keys: Advance, infinity, up, down keys, plus an EZ-KEY pro-
grammable function key
• Typical display update rate 1Hz
Maximum Limit Configuration
• Up to 12 loops per module with a maximum of 16 modules
Mounting
• DIN-rail specification EN50022, 35 x 7.5 mm (1.38 x 0.30 in.)
• Can be DIN-rail mounted or chassis mounted with customer-
supplied fasteners
Dimensions Weight
155.0 mm
(6.10 in)
116.08 mm
(4.57 in)
Controller:
453.59 g (16 oz.)
Wiring Termination—Touch-Safe Terminals
• Right angle and front screw type terminal blocks (slots A, B, D,
E)
- Input, power and controller output terminals, touch-safe re-
movable 12 to 30 AWG
• Wire strip length 7.6 mm (0.30 in.)
• Torque 0.8Nm (7.0 lb.-in.) right angle, 0.5Nm (4.51lb-in) front
terminal block
• Use solid or stranded copper conductors only
Connector Dimension “A” (mm/in.)
Standard 148 (5.80)
Straight 155 (6.10)
Optional Accessories
Power Supplies
• AC/DC Power supply converter 90-264VÅ (ac) to 24VÎ (dc) volts.
• P/N 0847-0299-0000: 31 W
• P/N 0847-0300-0000: 60 W
• P/N 0847-0301-0000: 91 W
EZ-ZONE RM Product Documentation
• User's Guide, printed hard copy, P/N 0600- 0075 -0000
• Watlow Support Tools CD, P/N 0601-0001-0000
Universal Input
• Thermocouple, grounded or ungrounded sensors
• >20MΩ input impedance
• 3µA open sensor detection
• Max. of 2KΩ source resistance
• RTD 2 wire, platinum, 100Ω and 1000Ω @ 0°C calibration to
DIN curve (0.00385Ω/Ω/°C)
• Process, 0-20mA @ 100Ω ,or 0-10V Î(dc) @ 20kΩ input imped-
ance; scalable, 0-50mV, 0-1000Ω
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
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 ±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 -50 50 mV
Volts ±0.01 0 10 Volts
mA dc ±0.02 0 20
mAmps
DC
mA ac ±5 -50 50
mAmps
AC