Welch Allyn SureTemp 670 Dokumentacja Pobierz pdf (Strona 37)

Troubleshooting

SureTemp

Model 678/SureTemp

Model 679 5-5

Troubleshooting Table (continued)

SYMPTOM POSSIBLE CAUSE PROCEDURE

Probe: Wrong type

displayed (continued)

Incorrect wiring of

probe

Oral probes should have a short between

pins B, E and F (refer to instrument PCB

designators for probe pin definition).

Rectal probes should have a short between

pins E and F but open between pins B and

E or F.

Replace with new probe.

Normal/Monitor Mode

switching problems

Ambient above 33.9

(93.0

Causes auto switch to Monitor mode.

Switched to Monitor

mode before probe in

mouth

If 60 seconds pass after ready in Normal

mode, unit switches to Monitor mode.

If probe is still cooling from a previous

temperature and used immediately, it might

sense ambient to be above 33.9

(93.0

F).

Defective Mode button Check mode button for proper function.

Check U1-25 for low level signal when

button is pressed.

Deffective Probe Replace probe.

Cannot enter Biotech

Mode

Mode button not

pressed, and or

Instrument not in wall

holder (678 only)

Mode button must be pressed while

instrument is in the wall holder.

Probe not connected

and or probe shaft not

inserted and removed

from probe well

Must connect probe to instrument and

remove the probe shaft from the probe well

while the instrument is in wall holder and

mode button is pressed.

Failed component,

broken trace

Check proper Mode button, Probe switch

and security switch operation.

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 48 49

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Welch Allyn SureTemp 670 Dokumentacja Strona 37

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