Brooks-instrument SLAMf Series Manual de usuario descargar pdf (Pagina 43)

3-9

Section 3 Operation

Installation and Operation Manual

X-TMF-SLAMf-MFC-eng

Part Number: 541B032AAG

April, 2013 Brooks

Digital MFC's and MFM's

Diagnostic Failure Description

RAM Byte by byte test of RAM detects bad memory location

Flash (Program Memory) 8-bit Checksum of the entire Flash not zero.

Non-Volatile Memory Byte by byte test of Non-Volatile Memory detects bad memory

location

Temperature Sensor Temperature Sensor reports a value outside the designed range of

0° C to 100° C

Power Supply (Internal) Any internally generated power supply voltage outside operational

limits. (3.3 Volt and 7.6 Volt internal supply voltages must be within

±5% of nominal value.)

Alarm Severity Alarm Latching Contact Low High Delay

Code Enable Enable Limit Limit

Diagnostic Alarm 12 n/a Off n/a n/a n/a

Flow 1 Off 11 Off Off 0% 120% 1.0

Flow 2 Off 10 Off Off 0% 120% 1.0

No Flow Indication Alarm 9 Off Off 2% n/a 1.0

Setpoint Deviation Alarm 8 Off Off -10% +10% 1.0

Totalizer Overflow Off 7 n/a Off n/a n/a n/a

User Power Supply Alarm 6 Off Off 13.5 27.0 1.0

Setpoint Input Out of Range Alarm 5 Off Off n/a n/a 1.0

Flow Output Out of Range Alarm 4 Off Off n/a n/a 1.0

Flow Output Loop Open Off 3 Off Off n/a n/a 1.0

Flow Sensor Out of Range Alarm 1 Off Off n/a n/a 1.0

Alarm Summary

The following table summarizes the parameters for each alarm type and

the respective default values.

3-6-2 Diagnostic Alarms (Analog versions only)

A Diagnostic Alarm will be indicated when any of the diagnostics below

detect a failure providing a visual indication via the red and/or green LED,

and activating the TTL open collector output located on the 15 pin

D-Connector. The diagnostic test or tests that have detected a problem and

caused the Diagnostic Alarm to occur can be determined only by reading a

parameter via the Service Port. When a diagnostic alarm occurs, the

device will automatically reset after approximately 5 seconds.

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Brooks-instrument SLAMf Series Manual de usuario Pagina 43