Operation
88
Modline 5
Refer to the instructions for your Model!
This function checks the Modline 5 Sensor performance by initiating a System Check. When this
function is initiated, the Sensor’s infrared detector output, internal gain and offset voltages are checked.
The check cycle lasts less than ten seconds. During the Check, the Sensor TEMP display indicates CAL.
The Alarm Led indicator and Alarm Relay remain at their last condition. Target temperature
measurement is suspended. The Analog Output readings are not derived from real time temperature
measurement during Check function. The Analog Output is held at its last output value. Peak Picker,
Track and Hold and Response time functions are suspended. At the end of the cycle, operation returns
to normal and temperature measurement resumes.
If the Check does not pass, the ALARM Indicator on the Sensor rear panel will light. Press an Up/Down
Arrow to view an Error Code on the Display. See Section 7
, page 119, for information about
alarms and error codes.
Checks can be made manually or scheduled automatically with the HOUR function that follows. Process
temperature measurement is interrupted for 5 to 10 seconds during the check period.
After application of power, a warm-up time of approximately 5 to 15 minutes is
required for the Sensor’s infrared detector and/or electronics. The Sensor Rear Panel
Alarm indicator will be lit and Error Code X104 (Detector Cold) displayed when the
▲
arrow is depressed.
The instrument Check function should not be initiated until the Alarm indicator has turned off. An Out
of Alarm (X102) may occur if initiated during warm-up. If an X102 Alarm occurs, repeat the Check after
warm-up.
On Sensors with firmware Versions 1.08 and higher, the Cal Check function will not
operate during Sensor Alarms X107, X106, X105, X104, X103, X101. See Section 5.12
Out of Range Displays and Error Codes
page 104, for error code explanations.
The Check should not be initiated when a single Alarm or multiple Alarms for Error Codes X103
(Detector block too hot), X104 (Detector block too cold), X105 (Internal case temperature too high), X106
(Internal case temperature too low) are active.
Navigate from TEMP display with
&
▲▼
to ENGR then use
&
▲▼
to CHK
Display
Instructions
Display and Limits
CHK
Press ENT to initiate Check. Sensor cycles through 10 second check and then
returns to the TEMP display.
CAL
5.6.5
HOUR– Automatic System Check
for 52, 5G, 5R models
Refer to the instructions for your Model!
