LUDLUM 3078 Stretch Scope

External Detector: Two energy-compensated GM tubes

Internal Detector: N/A

Energy Response: Within 25% of true value from 60 keV to 3 MeV

Linearity: Readings within 10% of true value

Display: Three-digit auto-ranging LCD. Units: (μ)(m)(k)(M)R(/h), (μ)(m)(k)(M)Sv(/h), (k)cps, (k)(M)cpm. Indicators: bar graph, mode (MAX, INTG), three alarm levels, fault messages (FAULT, OVERLOAD, LOSS OF COUNT, OVERRANGE), USB, wireless, audio, and low-battery.

Display Range: 1 µSv/h to 10 Sv/h (0.1 mR/hr to 1000 R/hr)

Range Selection: LOW range (1 µSv/h to 20 mSv/h, or 0.1 mR/hr to 2 R/hr);

HIGH range (8 mSv/h to 10 Sv/h, or 0.8 R/hr to 1000 R/hr);

or AUTO range across full display range

Response Time: User-selectable from 1 to 60 seconds, auto SLOW, auto FAST, fixed SLOW (22 s), fixed FAST (4 s)

Alarms: Three adjustable alarm setpoints for count rate, exposure/dose, count, and accumulated dose alarm set-points adjustable over the display range

Overload Protection: High count rate saturation protection designed to prevent false display of lower count rates. If the instrument detects an overload condition, OVERLOAD will appear on the display and an audio warning will be triggered.

Overrange: If the reading exceeds the predefined detector range, the instrument will flash a maximum reading, an audio warning will be triggered, and OVERRANGE will appear on the display

Audio: Approximately 4.5 kHz, click audio greater than 65 dB at 0.6 m (2 ft.), alarm audio greater than 72 dB

Calibration Protection: Internal dipswitch to disable front-panel calibration parameter changes

Power: Four "AA" batteries

Temperature Range: -20 to 50 °C (-5 to 122 °F)

May be certified for operation from -40 to 65 °C (-40 to 150 °F)

Environmental Rating: NEMA rating of 3x; IP rating of 53

Size (H x W x L): 20.0 x 11.4 x 125.1 cm (7.9 x 4.5 x 49.25 in. [4.1 ft.]) retracted, fully extended length 466.7 cm (183.75 in. [15.3 ft.])

Weight: 2.5 kg (5.4 lb) including batteries and shoulder strap

Datasheet

Manual