English dropdown-ico

Watlow Electric Series 142 manual

1
2
3
4
5
6
7
8

Go to page of

Similar user manuals

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Watlow Electric Series 142, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Watlow Electric Series 142 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Watlow Electric Series 142. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Watlow Electric Series 142 should contain:
- informations concerning technical data of Watlow Electric Series 142
- name of the manufacturer and a year of construction of the Watlow Electric Series 142 item
- rules of operation, control and maintenance of the Watlow Electric Series 142 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Watlow Electric Series 142 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Watlow Electric Series 142, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Watlow Electric service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Watlow Electric Series 142.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Watlow Electric Series 142 item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    Series 142 User ’ s Manual Safety High Limit or On-Off Heat Controller 1241 Bundy Boulevard, P.O. Box 5580, Winona, Minnesota USA 55987-5580 Phone: +1 (507) 454-5300, Fax: +1 (507) 452-4507, Internet: http://www.watlow.com The Watlow Series 142 Safety Limit is a compact, environmentally protected safety limit or temperature controller. The limit [...]

  • Page 2

    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 type per the model num- ber on the unit stick[...]

  • Page 3

    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 limit to an on-off control mode. Figure 3d —[...]

  • Page 4

    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 a fire hazard or other hazard. Failure to install temperature limit control protection where a potential hazard exists could result in d[...]

  • Page 5

    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 of an overtemperature condition. (Reset switch supplied by user.) On-of[...]

  • Page 6

    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 controller Output Type A = Electromechanical relay 1 , Form C, 3A, with[...]

  • Page 7

    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: Series 142 Model Numbers: 142A – (2 or 3)(600[...]

  • Page 8

    8 ■ User’s Manual Watlow Series 142 automatic power reset — A feature in latching limit controllers that does not recognize power outage as a limit condition. When power is restored, the output is re-ener- gized automatically, as long as the temperature is within limits. electrical noise immunity — Ability of a temperature control to operat[...]