Advanced Survey Meter ASM-990 Series

This Advanced Survey Meter ASM-990 Series can detect alpha, beta, gamma, or x-ray radiation within an operating range of 1 µR/hr to 1 R/hr (1 to 5,000,000 CPM), depending on the selected probe (Geiger-Mueller, neutron, proportional counter, scintillation).

Categories: Radiation Safety, Raysafe

The ASM-990 series can detect alpha, beta, gamma, or x-ray radiation within an operating range of 1 µR/hr to 1 R/hr (1 to 5,000,000 CPM), depending on the selected probe (Geiger-Mueller, neutron, proportional counter, scintillation). With the proper probe combination, this meter can be used as a general survey meter, an area monitor, a wipe test counter, and a contamination monitor.

Designed to meet the high technology requirements of health physics, medical physics, and nondestructive testing applications, the ASM-990 Series is well-suited for a wide range of end users, including: Radiation safety officers (RSO), nuclear medicine laboratories, diagnostic x-ray and hospital emergency room technicians, environmental health physicists, and emergency responders.

The units, with purchased probe, are shipped calibrated, ready-to-use, and include a MHV connector to ensure compatibility with all Fluke Biomedical probes. The 992 includes a fully calibrated internal energy compensated 1 R/hr GM detector. The 993 features a fully calibrated internal pancake detector as well as an internal energy compensated 1 R/hr GM detector.

Read the Advanced Survey Meter ASM-990 Series Data Sheet

Features

Key Features

Auto-scaling measurement of rate and dose simultaneously, with the capability to record peak rate
Up to [5] different probes can be calibrated with one unit
Survey Mode data logging feature allows user to store up to 5 separate survey sequences
Saved data can be uploaded to a PC via included Infrared Data (IrDA) transmitter
Easy-to-use multifunction keypad for intuitive menu navigation
Backlit analog/digital LCD display with full-range audio output capability
Barcode scanner (optional)
Auto Power-Down feature extends battery life

Specifications

Product Specifications for ASM-990 and ASM-992

Operating modes

	• Rate
	• Integrate
	• Scaler (dual option): “Based On Measurement or “Based On Time
	• Timed Peak Hold
	• Data Logging

Operating rate ranges (dependent on selected probe)

µR/hr, mR/hr, R/hr, µrem/hr, mrem/hr, rem/hr, µSv/hr, mSv/hr, Sv/hr, CPM, CPS, DPM ^99mTc, DPS ¹³¹I, Bq ¹²⁵I, kBq ¹²³I, MBq ²⁰¹Tl, µCi ⁶⁷Ga, mCi ¹⁸F, Ci ⁵⁷Co

µR, mR, R, µrem, mrem, rem, µSv, mSv, Sv, C (counts), kC, MC, D (distintigrations), kD ^99mTc, MC ¹³¹I

Complementary units in the integrade mode with the integrated time value in seconds

Accuracy

Within 10% of reading between 10% to 100% of full scale indication on any range, exclusive of typical energy dependence. Accuracy is probe dependent

Detector

Accepts GM detectors and scintillation probes operating at high voltages between 500 and 1300 volts

Environmental

Temperature range	14° to 122°F (- 10° to + 50°C)
Relative humidity	0 to 95%, non-condensing

Warm up time

5 second diagnostic check

Check source*

	Natural uranium, mounted on the case
	* Due to recent international airline shipping policies/restrictions, radioactive “Check Source will not be shipped with the main unit outside the US

Power requirements

Two “D cells, 150 hours operation, automatically indicates when battery is low

Housing material

Proprietary polycarbonate, splash-proof case

Display

Liquid crystal display, 2.2 x 2.2 in (5.6 x 5.6 cm)

Data logging modes

	The ASM-990 series’ Log Data feature can easily be accessed via the Setup Sub-menu The unit can log/save a maximum of 500 data points in any of three separate modes (Manual and Survey modes can utilize the optional barcode scanner)
Manual	Individual rate data points can be saved by pressing the Start/Stop/Rst/Save button
Timed	A data point will automatically be saved at user selectable time intervals in the range of 1 to 255 seconds
Survey	Programmed sequences can be accessed via the menu system. Pressing the Start/ Stop/Rst/Save button saves the current reading and displays the next survey location Programming of survey sequences, as well as retrieval of logged data, is accomplished via the built-in IrDA port Label names up to 20 characters can be programmed into the unit to identify the individual survey locations

Weight (without probe)

ASM 990, 992: 2.1 lb(0.95 kg)
ASM 993: 2.4 lb (1.09 kg)

Dimensions

4.125 (w) x 10.91 (d) x 2.5 in (h) (10.47 x 27.71 x 6.35 cm)

Probe connector

The unit is available with a MHV connector The unit can be used with multiple probes (5 total) by selecting the appropriate probe from the main menu. All calibration data for each probe is stored in the unit’s EEPROM

Models and Accessories

Model Name	Description	Price List
ASM-993-PTO	ASM-993-PTO – ADVANCED SURVEY METER – item#3584550
ASM-990-PTO	GM PANCAKE PROBE WITH ABS GM pancake probe with thin mylar window for high sensitivity. The probe connects to the ASM-990 base unit. Detects alpha, beta, gamma and x-ray.
489-110D	ASM-993-PTO – ADVANCED SURVEY METER – item#3584550
ASM-992	ADVANCED SURVEY METER (product is no longer available) Handheld survey meter with integrated sensor and probe connector

Note: The ASM-990 series, with the customer selected probe is calibrated to NIST standards. The ASM-990 series with GM probe standard calibration is in R, Sv, and rems. Scintillation detectors are calibrated in counts. Radionuclide specific efficiency calibrations are available upon request.

Carrying Cases
990CC	Carrying Case (part# 990CC)

Service Packages
Care Plans	Request a quote

Advanced Survey Meter ASM-990 Series

Features

Specifications

Models and Accessories

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