MGP WRM2 Specifikace stáhnout pdf (Strana 12)

TelePole WR/ Operating & Maintenance Manual Page 12

3.5. Alarms

a. Detector alarm: The Err. LCDs and SPK icon will blink on the display in three cases:

1. The detector is disconnected.

2. The detector high voltage power supply is defective.

3. The detector is located in a background radiation field < 600 mR/h and the low range

Geiger is defective.

4. If the detector is located in a radiation field higher than 800 mR/h and the meter displays

the following sequence of readings: 800 mR/h, 600 mR/h, 0.00 mR/h - this indicates the high

range geiger is malfunctioning.

Note: It is recommended to check the meter and the detector with a calibration source, to

ensure correct operation. Check:

Background field during two minutes,

50 mR/h for the low range Geiger,

5.00 R/h for the high range Geiger.

To mute the audible alarm, press the RESET push-button.

b. Battery alarm: If battery voltage decreases below 2.2V, the battery and SPK icons blink

on the display, and an interrupted audible alarm is activated.

To mute the audible alarm, press the RESET push-button.

c. Overflow alarm: If the displayed Exposure rate is over 999 R/h, the O.F. LCDs and SPK

icon will blink on the display and an interrupted audible alarm will be activated. To mute the

audible alarm, press the RESET push-button.

d. Threshold alarm for Exposure rate: If the Exposure rate reading exceeds threshold value,

the RATE LCDs and SPK icon will be displayed, accompanied by an audible beep.

Pressing the RESET push-button mutes the audible alarm, but the RATE LCDs, the SPK

icon and the reading continue to be displayed, until the reading decreases to 75% of threshold

value. In case the reading exceeds threshold value and then decreases to below 75% of the

threshold value, the RATE LCDs, the SPK icon and the beep sound will automatically

cancel, even though the RESET push-button has not been pressed.

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MGP WRM2 Specifikace Strana 12