Watlow Basic Temperature and Limit Controllers

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

RTD (DIN) -328 to 1472°F or -200 to 800°C

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°C (-328 to 32°F)

• Temperature stability: ±0.3° 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° per degree change in ambient

Allowable Operating Ranges

Type E: -328 to 1470°F or -200 to 800°C

Type J: -346 to 1900°F or -210 to 1038°C

Type K: -454 to 2500°F or -270 to 1370°C

Type T: -454 to 750°F or -270 to 400°C

RTD (DIN) -328 to 1472°F or -200 to 800°C

Output Types

Switched dc (non-isolated, on-off controller only)

• Supply voltage max.: 24VDC into an infinite load

• Supply voltage min.: 5VDC at 10mA

• Min. load impedance: 500Ω

Electromechanical Relay, Form C

• Min. load current: 100mA

• 8A @ 240VAC or 30VDC max., resistive

• 250VA pilot duty, 120/240VAC max., inductive

• Use RC suppression for inductive loads

• Electrical life 100,000 cycles at rated current

External Reset Switch (limit controller only)

• Momentary, dry contact closure

Agency Approvals

• CE a, W.E.E.E., RoHS EU Directive (2002-95-EC)

Agency Approvals (on-off controller only)

• UL® 873 recognized temperature controller and indicator,

File # E43684

• UL® 197 reviewed for use in foodservice appliances

• ANSI Z21.23 gas appliance thermostat approval

• Temperature control and indicator CSA 22.2 No. 24,

File # 30586

• NEMA 4X/IP65 (SERIES CV and LV panel mount

controllers with up/down cursor keys)

Agency Approvals (limit controller only)

SERIES LF (potted version only)

• UL® 991 recognized temperature limit for foodservice

industry

SERIES LV and SERIES LF (including potted version)

• UL® 873 recognized temperature regulator, File # E43684

• UL® 197 reviewed for use in foodservice appliances

• ANSI Z21.23 gas appliance thermostat approval

• CSA C22.2#24 approved temperature control,

File # 30586

• FM Class 3545 temperature limit switches, File # 3017239

Terminals

• 0.25 in. (6.3 mm) quick connect, push on terminal or

removable screw style terminal block

Power

• 24VAC +10%; -15%; 50/60Hz, ±5%

• 100 to 120VAC +10%; -15%; 50/60Hz, ±5%

• 200 to 240VAC +10%; -15%; 50/60Hz, ±5%

• 10VA max. power consumption

• Data retention upon power failure via nonvolatile memory

Operating Environment

• 32 to 158°F (0 to 70°C)

• 0 to 90% RH, non-condensing

• Storage temperature: -40 to 185°F (-40 to 85°C)

Dimensions

• DIN-rail model can be DIN-rail or chassis mount

DIN-rail spec DIN 50022, 1.38 in. x 0.30 in. (35 mm x 7.5 mm)