Service Information
4-20
S
YMPTOM
D
ESCRIPTION
R
ESOLUTION
Temperature probe has not
stabilized
Observe display trend indicators
and wait for stable measurement
(see
Section 3.8 Trend Indicators
)
Instrument is set to the wrong
thermocouple type for the
attached probe
Set the thermocouple type as
appropriate for the attached
probe (see
Section 3.3, Setup
Menu
)
When sourcing from a
thermocouple simulator, Open
Lead Detection is enabled.
See
Section 3.11, Open Lead
Detection Enable/Disable
to
disable.
Unresponsive
Static discharge through
connected probes
Press
to cycle instrument
power
Shuts down
unexpectedly
or will not
power on
Batteries are low or depleted
Replace batteries (see
Section
2.5, Battery Installation and
Replacement
)
Display shows
“Short ChAn1”
on power up.
A thermocouple, shorted
transducer, or other short circuit
is plugged into the Source
Channel during startup.
Remove the shorting device. Be
sure thermocouple is plugged into
the Read Channel, not Source.
Figure 16: Common Troubleshooting Issues
Diagnostic Routines and Error Codes
The instrument momentarily activates all display annunciators and segments during startup
to allow for visual inspection of the LCD. Observe the LCD and verify all segments activate.
Internal diagnostic routines are also executed during startup. If any diagnostic routine
detects a malfunction, an error will be displayed as shown in
Figure 17
below.
E
RROR
C
ODE
D
ESCRIPTION
Err ADC
Analog to digital converter error
Err InP
Stuck key or other keypad error
Figure 17: Diagnostic Routine Error Codes
Memory Sterilization
To erase all locally stored measurement data and reset accumulated statistics,
press
(1.5s)
. See
Section 3.12, Clear Function
for instructions.
Instrument parameters will be retained. Refer to
Section 3.3, Setup Menu
to set instrument
parameters as desired.
Содержание CL940A
Страница 39: ...Appendices B iii Thermocouple Type K ...
Страница 40: ...Appendices B iv ...
Страница 41: ...Appendices B v Thermocouple Type J ...
Страница 42: ...Appendices B vi ...
Страница 43: ...Appendices B vii Thermocouple Type T ...
Страница 44: ...Appendices B viii ...
Страница 45: ...Appendices B ix Thermocouple Type E ...
Страница 46: ...Appendices B x ...
Страница 48: ...Appendices B xii ...
Страница 50: ...Appendices B xiv ...
Страница 51: ...Appendices B xv Thermocouple Type R ...
Страница 52: ...Appendices B xvi ...
Страница 53: ...Appendices B xvii Thermocouple Type S ...
Страница 54: ...Appendices B xviii ...
Страница 55: ...Appendices B xix Thermocouple Type G ...
Страница 56: ...Appendices B xx ...
Страница 57: ...Appendices B xxi Thermocouple Type C ...
Страница 58: ...Appendices B xxii ...
Страница 59: ...Appendices B xxiii Thermocouple Type D ...
Страница 60: ...Appendices B xxiv ...
Страница 61: ...Appendices B xxv Thermocouple Type P ...
Страница 62: ...Appendices B xxvi ...
Страница 63: ...Appendices B xxvii Thermocouple Type L ...
Страница 64: ...Appendices B xxviii ...
Страница 65: ...Appendices B xxix Thermocouple Type U ...