Table 6.3 error factor and output character list – Yokogawa Low Concentration (ppm) Zirconia Oxygen Analyzer OX400 User Manual

Page 50

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<6. Operation and Parameters>

6-13

IM 11M10B01-01E

Table 6.3

Error Factor and Output Character List

Output characters

Error factor

0001

Err1: Sensor error

0002

Err2: Heater temperature error

0004

Err3: Temperature sensor burnout

0008

Err4: Device temperature error

0010

Err5: CPU error

0020

Err6: FAN stop

If multiple errors occur, the logical sum of output characters is output.

Example 1 : 0003; Err1 and Err2 are occurring

Example 2 : 0017; The four errors Err1, Err2, Err3, and Err5 are occurring.

MSB

LSB

Err1: Sensor error
Err2: Heater temperature error
Err3: Temperature sensor error
Err4: Device temperature burnout
Err5: CPU error

Err6: FAN stop

0

1

1

1

1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Figure 6.16

Configuration of Error Data (0017)

4) Alarm

The alarm is displayed in the DDDD format. The output characters are displayed in hexadecimal

format, and Table 6.4 shows the error factors and output characters.

Table 6.4

Alarm Factor and Output Character List

Output Characters

Alarm Factors

0001

ALM1: Heater unstable (temperature unstable)

0002

ALM2: Sensor failure

0004

ALM3: Electromotive force (EMF) error

0008

ALM4: Asymmetrical voltage error

0010

ALM5: Calibration error

0020

ALM6: Sensor resistance value error

0040

ALM7: Oxygen concentration Hi/Low limit error

0080

ALM8: Over range error

If multiple alarms occur, the logical sum of output characters is output.

Example 1: 00C0: ALM7 and ALM8 are occurring.

ALM1: Heater unstable

(temperature unstable)
ALM2: Sensor failure
ALM3: Electromotive force (EMF) error
ALM4: Asymmetrical voltage error

ALM5: Calibration error

ALM6: Sensor resistance value error
ALM7: Oxygen concentration Hi/Low limit error
ALM8: Over range error

MSB

LSB

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

1

1

Figure 6.17

Configuration of Alarm Data (00C0)

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