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9.6 Functional Characteristics
Indicators:
Large-format, backlit, high-contrast LCD display (8 alphanumeric char symbols)
Indicator lights (red, green and blue LEDs)
Flash red alarm LED
Vibrator
2 selection buttons for acknowledging warnings, viewing parameters and measurements (data)
Alarming speaker with level of 85 dB (A) typical (> 90 dB (C) peak) at 30 cm (11.8 in),
frequency < 4800 Hz
Alarms:
Precision: the alarm is triggered when the measured value reaches the corresponding alarm threshold value
Dose alarm: two thresholds (alarm and warning). Can be adjusted over the entire display range
(only the warning can be acknowledged)
Dose rate alarm: two thresholds (alarm and warning). Can be adjusted over the entire display range
(only the warning can be acknowledged)
Acknowledgment of warnings is accomplished by pressing and holding either push button for at least 3 seconds.
Checks:
Periodic detector test (every 10 minutes) for both low and high energy detectors
Internal data integrity check with CRC16
Periodic battery test (every 10 minutes)
Component test (integrated circuit, memories)
Specific and dedicated EEPROM for calibration and algorithm parameters
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