Phonetics 1104 user manual Temperature Monitoring Problem Cause Solution

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Temperature Monitoring:

Problem		Cause	Solution
1.	Can’t program temperature limits; or the	The input isn’t configured to read a tempera-	Press SET and CONFIGURE to program the
	unit won’t read the temperature sensor.	ture sensor.	input. (See Section 5.1.1 for more information
			on configuring inputs.)
2.	The temperature reading is -20° F	The temperature sensor has been	Examine the wires to temperature sensor and
	or -30° C.	disconnected or has broken wires.	connect or replace wiring.
3.	Temperature reads 150° F	Temperature sensor wires are touching or	Verify and correct wiring.
	or 65° C.	have shorted.
4.	Temperature reading is inaccurate.	a) Temperature sensing may be affected by	Try moving the unit to a different location.
		a source of ambient heat (ie., direct
		sunlight, or heat duct proximity).
		b) Temperature may require calibration.	After moving or placing the unit away from
			ambient heat sources, the temperature may be
			calibrated to offset inaccurate normal reading
			by several degrees.
			Refer to Chapter 5, Section 5.6.
		c) The unit is using the wrong temperature	Verify temperature scale.
		scale (Fahrenheit vs. Celsius).	Refer to Chapter 5, Section 5.5.

Appendix A: Troubleshooting