2 ■ User’s Manual Watlow Series 142 Figure 2a — Series 142 dimensions. Installation Procedure 1. Drill two 5mm (0.187 in.) diameter holes in the desired panel location. 2. Mount the unit with two 6-32 screws, 6mm (0.25 in.) hex nut and #6 internal tooth lock washer. 3. Use the correct thermocouple t...
Page 3 - Figure 3c — Reset switch.; Wiring
Watlow Series 142 User’s Manual ■ 3 NOTE: All terminals are 4mm (1/4 in.) quick connects. Figure 3a — 120V~ power wiring (142A - _ _ _ _ - 1 _ 00). Figure 3b — 208/240V~ power wiring(142A - _ _ _ _ - 2 _ 00). Figure 3c — Reset switch. NOTE: Jumpering the reset terminals does not convert from limitto...
Page 4 - Figure 4 — System wiring example.; System Wiring Example
4 ■ User’s Manual Watlow Series 142 Figure 4 — System wiring example. ∫ WARNING: Install high or low temperature limit control protection in sys-tems where an overtemperature fault condition could present afire hazard or other hazard. Failure to install temperature limitcontrol protection where a po...
Page 5 - Operating Environment; Specifications
Watlow Series 142 User’s Manual ■ 5 (2072)Limit Control Mode • High limit control• Latched manual reset with ±1.7°C (3°F) hysteresis• Can only be reset when process temperature drops below limit set point. Terminals are provided for remote reset in the event ofan overtemperature condition. (Reset sw...
Page 6 - Ordering Information; Gas Appliance; overtemperature
6 ■ User’s Manual Watlow Series 142 (2071)To order, complete the code number to the right with the information below: 1 4 2 A - _ _ _ _ - _ _ 0 0 Series 142 = Temperature safety limit,limit, latching 3A relay, environmentally sealed controller, or basic on-off temperature controllerOutput Type A = E...
Page 7 - Declaration of Conformity
Jim Boigenzahn Winona, Minnesota, USA Name of Authorized Representative Place of Issue General Manager December 2001 Title of Authorized Representative Date of Issue Signature of Authorized Representative Watlow Series 142 User’s Manual ■ 7 Declares that the following product: English Designation: S...
Page 8 - Please have the following information available; Your Feedback
8 ■ User’s Manual Watlow Series 142 automatic power reset — A feature in latching limitcontrollers that does not recognize power outage as a limitcondition. When power is restored, the output is re-ener-gized automatically, as long as the temperature is withinlimits. electrical noise immunity — Abil...
