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11. MAINTENANCE AND TROUBLESHOOTING
There is no annual maintenance required for the series 1604 monitor, unless the local authority having
jurisdiction has established such a routine. If there is time of no operation, the unit could be cleaned by
holding an air compressor near the air vent holes, at no more than 45 psi and carefully blow away any
accumulated dust.
12. WARRANTY
Allestec Corporation will provide warranty for the monitor for a period of three years. Allestec agrees to
repair or replace any component or subassembly it deems necessary to fulfill the obligation of the war-
ranty. The warranty does not include abuse to the unit, mechanical or electrical. Also not covered under
the warranty is water, chemical, particle damage, acts of God, lightning, and other external influences.
To service your unit, send the monitor to your distributor and provide a contact name with a phone num-
ber. State the nature of the problem, if known.
Specifications are subject to change without notice.
13. FIELD WIRE CHARACTERISTICS
(Chart is not utilized for RTD conductors)
WIRE RESISTANCE CHART
WIRE SIZES
(Annealed Copper)
Ohms Per 1000 feet (304.8m)
Diameter
AWG
Area (mils) Circular Mils
0°C
32ºF
20°C
68ºF
50°C
122ºF
10
101.90
10380.00
0.9203
0.9989
1.1170
12
80.81
6530.00
1.4630
1.5880
1.7750
14
64.08
4107.00
2.3270
2.5250
2.8230
16
50.82
2583.00
3.7000
4.0160
4.8900
18
40.30
1624.00
5.8830
6.3850
7.1380
20
31.96
1022.00
9.3550
10.1500
11.3500
22
25.35
642.00
14.8700
16.1400
18.0500
24
20.10
404.00
23.6500
25.6700
28.7000
26
15.94
254.10
37.6100
40.8100
45.6300
28
12.64
159.80
59.8000
64.9000
72.5500
30
10.03
100.50
95.0800
103.2000
115.4000
32
7.95
63.21
151.2000
164.1000
183.4000
WARNING: VERIFY THAT ANY EQUIPMENT TO BE WORKED ON IS REMOVED FROM
THE POWER SOURCE UNTIL THE WORK IS COMPLETE.