Tsi IAQ50 Manuel d'utilisateur télécharger pdf (Page 35)

35

Symptom

Possible

Causes

Corrective

Action

Display

reads "LO"

Wrong AC

adapter

Replace with

the correct AC

adapter.

Low AC line

voltage

Correct the AC

line voltage or

use batteries.

Dirty battery

contacts

Clean the

battery

contacts.

Display

reads

“CAL”

The Model

IAQ50 has

detected an

internal fault

Return to

factory for

service.

Display

reads

“OVER”

A parameter

value is too

high.

Use an

alternate

method to

make meas-

urement.

RTD became

unplugged

while reading

RTD tempera-

ture.

Plug in the

RTD

Temp.

initially

reads high

or low

Temperature

sensor is still

adjusting to

temperature

Allow

sufficient time

for the

temperature to

stabilize.

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