Watlow Series TM - Manual (Page 19)

Wa t l o w S e r i e s C • 17 • S p e c i f i c a t i o n s
Specifications
Controller
• Microprocessor based, on-off control mode.
• Nominal switching hysteresis, typically 1.7°C (3°F).
• Input filter time: 1 second
Operator Interface (model dependent)
• Four digit , 7 segment LED displays, .28" high.
• °F or °C indicator LED.
• LOAD indicator LED.
• Continuous turn, velocity sensitive rotary encoder for set
point adjustment, on rotary-knob models.
• Front panel key on Push for Set Point or Push for Pro-
cess options.
• No operator interface on fixed set point models.
• Increment/Decrement keys for set point adjustment on
tactile key models.
Standard Conditions For Specifications
• Rated line voltage, 50 to 60Hz, 0 to 90% RH non-con-
densing, 15-minute warm-up.
Calibration ambient range: 25°C (77°F) ±3°C
Sensor Input
Thermocouple
• Grounded or ungrounded.
• Type E, J, K, T thermocouple types.
• >10 MΩ input impedance
• 250 nV input referenced error per 1Ω
source resis-
tance.
RTD
• 2-wire or 3-wire platinum, 100 Ω
• DIN curve (.00385 curve)
• 125 μA nominal RTD excitation current
Input Accuracy Span Range
Type E: -200 to 800°C or -328 to 1,470°F
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
RTD (DIN): -200 to 800°C or -328 to 1,472°F
Thermocouple Input
• Calibration accuracy: ±1% of input accuracy span, ±1° at
standard conditions and actual calibration ambient.
Exception: Type T, ±2.4% of input accuracy span for -200
to 0° (-328 to 32°F)
• Temperature stability: ±0.3 degree per degree change in
ambient.
RTD Input
• Calibration accuracy ±1% of input accuracy span ±1° at
standard conditions and actual calibration ambient.
• Temperature stability: ±0.2 degree per degree change in
ambient
Allowable Operating Ranges
Type E: -200 to 800°C or -328 to 1,470°F
Type J: -210 to 1,038°C or -346 to 1,900°F
Type K: -270 to 1,370°C or -454 to 2,500°F
Type T: -270 to 400°C or -454 to 750°F
RTD (DIN): -200 to 800°C or -328 to 1,472°F
Output Types
Switched DC (non-isolated)
• Supply voltage maximum: 24V Î (dc) into an infinite load.
• Supply voltage minimum: 5V Î (dc) at 10 mA
• Minimum load impedance: 500
Ω
Electromechanical Relay, Form C
• Minimum load current: 100 mA
• 8 A @ 240V
Å (ac) or 30V Î (dc) maximum, resistive
• 250 VA pilot duty, 120/240V Å (ac) maximum, inductive
• Use RC suppression for inductive loads
• Electrical life 100,000 cycles at rated current
Agency Approvals
• UL®873 Recognized Temperature Controller and Indica-
tor. File E43684.
• NEMA 4X/IP65 on panel mount package options with
tactile keys for set point.
• UL®197 Reviewed for use in cooking appliances.
• W.E.E.E; CE - See Declaration of Conformity.
• ANSI Z21.23 Gas Appliance Thermostat approval.
• Temperature Control and Indicator CSA 22.2 No. 24.
• RoHS Directive (2002-95-EC)
Terminals
• 6.4 mm (0.25 in) quick connect, push-on termi-
nals. See order options. Refer to Wiring section for
crimp-on terminal recommendations.
• Removable screw clamp style terminal blocks. See
order options.
• Wire gauge 0.1 to 4 mm 2 (30 to 12 AWG). Strip
length, 8 mm (0.30 in).
• Torque: 0.8 Nm (7 in-lb) maximum.
Power
• 24V
Å (ac) +10%; -15%; 50/60 Hz, ±5%
• 120V Å (ac) +10%; -15%; 50/60 Hz, ±5%
• 230 to 240V Å (ac) +10%; -15%; 50/60 Hz, ±5%
• 10VA maximum power consumption
• Data retention upon power failure via nonvolatile memory
Operating Environment
• 0 to 70°C (32 to 158°F)
• 0 to 90% RH, non-condensing
• Storage temperature: -40 to 85°C (-40 to 185°F)
Dimensions
• DIN Rail model can be DIN rail or chassis mount
DIN rail spec DIN 50022, 35 mm x 7.5 mm (1.38 in x 0.30 in)
Style Width Height Depth
Open board 61.7 mm
(2.43 in)
61.7 mm
(2.43 in)
45.1 mm
(1.78 in)
Potted 70.1 mm
(2.76 in)
102.9 mm
(4.05 in)
46.6 mm
(1.84 in)
DIN Rail 78.1 mm
(3.08 in)
112.3 mm
(4.42 in)
90.7 mm*
(3.57 in)
Square 1/8
DIN Panel
72.4 mm
(2.85 in)
72.4 mm
(2.85 in)
Behind panel
51.7 mm
(2.04 in)
*Depth including DIN rail, 94.7 mm (3.73 in)
Note: These specifications are subject to change without
prior notice.