Blank 01

Field Circuit Resistance(Ohms) Test Worksheet

This is a test of the field wiring attached to the controller. This test guides you though the process of measuring the ohms resistance in the field wiring through each zone. Using the guidelines below determine if each circuit/zone is good or bad.

Step 1.--Disconnect the common field wire(s) from the common terminal on the controller.

Step 2.--Set your multimeter to a Resistance range of 0 to 100 ohms.

Step 3.--Hold one lead against the bare wire on the common wire. With the other lead touch the terminals of the controller one by one. Mark down on this sheet the Resistance(ohms) with the corresponding zones.

Zone#	Ohms Reading	Zone#	Ohms Reading	Zone#	Ohms Reading

1	______________	17	______________	33	______________
2	______________	18	______________	34	______________
3	______________	19	______________	35	______________
4	______________	20	______________	36	______________
5	______________	21	______________	37	______________
6	______________	22	______________	38	______________
7	______________	23	______________	39	______________
8	______________	24	______________	40	______________
9	______________	25	______________	41	______________
10	______________	26	______________	42	______________
11	______________	27	______________	43	______________
12	______________	28	______________	44	______________
13	______________	29	______________	45	______________
14	______________	30	______________	46	______________
15	______________	31	______________	47	______________
16	______________	32	______________	48	______________

Rule of Thumb:

0-6 ohms -- a shorted circuit-bad solenoid or shorted wiring

6-12 ohms -- a slow burn solenoid or Asco solenoid

12-20 ohms -- normal/possible two solenoids on circuit or an Asco solenoid connected on circuit

20-60 ohms --Normal operating range

60 ohms + -- open circuit

Those circuits which fall in the Normal range are good circuits. The rest need to have thesolenoids and field wiring tested separately. Follow the Field Test Flow Chart to find the problem.