Digital Radiation Monitoring System

Question 1

What Rad monitors are part of the Digital Radiation Monitoring System?

Answer 1

• Plant Vent (RM-14, 24, 28, 87) and “” R
• SJAE (RM-15) and ““R
• CNMT exh (RM-44 A & B)
• Plant Vent Gross (RM-29)

Question 2

What will be displayed if a DRMS RDU or LRP overranges?

What will be displayed if an RDU loses comunicaton with and LRP?

Answer 2

overrange - E.EEE+EE

loss communication - E009

Question 3

What will be displayed on an RDU or LRP if detector counts less than setpoint (for 60 sec)?

Answer 3

the FAIL/ ACK light will illuminate and an alarm will sound

Question 4

What will happen on a Hi-Rad on RM-29 (plant vent gross)

Answer 4

Audible alarm

alarm sent to sacramento (California Office of Emergency Services)

Question 5

When would you “bypass” RM-44A and B

Answer 5

• RM-44 A and B actuate CVI
• energize to actuate

1. loss of power (maintenance)
2. if restore power, elect noise could actuate CVI
3. before restore power take CVI to bypass

Question 6

Amber light

Answer 6

Alert measured parameter has exceeded the alert set point

Question 7

Red indication light

Answer 7

High - measured parameter has exceeded the high set point

Question 8

Green indication light

Answer 8

Fail- low detector counts less than setpoint for 60 seconds

Question 9

Blue indication light

Answer 9

Test- module is being tested by : check source , selected by Cal or test, test/norm

Question 10

White local indication

Answer 10

At RDU, control mode key switch on the LRP is in the Local position

Question 11

White normal

Answer 11

Indicates monitor is operating normally with sample flow , no alarms, no test & no purge