SuperMAX™ Electrometer

Advanced Dosimetry

Supermax topdown 1400

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Supermax topdown 1400

The Next Generation Electrometer

Built on the MAX 4000's legacy of highly accurate, reference-grade measurements, combined with a revolutionary touchscreen interface and a host of advanced measurement features, the SuperMAX redefines what an electrometer should be.

Two Independent Measurement Channels

Independent control over range, bias voltage, and applied system factor. Both channels feature extensive range (0.001 pA to 500.0 nA, 0.001 pC to 999.9 µC) for use in a variety of applications, including ratio measurements.

Built-In Detector Library

Eliminates the need for a PC or to apply system factor and temperature/pressure corrections. Store over 100 detectors and calibrations. Apply individual factors to one or both measurement channels.

Easy-to-Use Interface

Large, color display with built-in touchscreen. On-screen keypad and pull down menus allows for easy access to settings and detector library.

Exradin W1 Scintillator Integration

Two dedicated modes in the SuperMAX allow for seamless calculations using the Exradin W1 Scintillator.

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Supermax feature with w1 1400

Specifications

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Rate Mode Display Ranges
LOW: 0.001 pA – 500.0 pA
HIGH: 0.001 nA – 500.0 nA
Charge Mode Display Ranges
LOW: 0.001 pC – 999.9 μC
HIGH: 0.001 nC - 999.9 μC
Rated Effective Range on Input Currents Per IEC 60731 for Reference Grade
0.400 pA – 500.0 nA (± .25% of minimum effective scale reading)
Measuring Range
LOW: 0.400 pA - 500 pA, 0.400 pC - 999.9 μC
HIGH: 0.400 nA - 500 nA, 0.400 nC - 999.9 μC
Bias Voltage
Nominal ±1000 V
0, (±) 100 - 1000 V in 1 V increments
Range Switching
User selectable
Display Resolution
LOW: Rate mode/Charge mode 0.001 pA / 0.001 pC
HIGH: Rate mode/Charge mode 0.001 nA / 0.001 nC
Repeatability
Low range: 0.25%
High range: ± 0.1%
Long Term Stability
± 0.5% over 1 year
Stabilization Time
± 0.1% of value at 1 hour for measurements taken at 15 minutes and 6 hours
Non-linearity:
± 0.25%
Zero Drift
Rate mode: ± 0.25% of minimum effective scale reading (LOW/HIGH: < ± 0.001 pA / < ± 0.001 nA)
Zero Shift
Rate mode: ± 0.25% of minimum effective scale reading (LOW/HIGH: < ± 0.001 pA / < ± 0.001 nA)
Charge Leakage Current
LOW/HIGH: < ± 0.001 pA / < ± 0.001 nA
Response Time
Low range rate: < 12 seconds, High range rate: < 2 seconds
Low range charge: <2 seconds, High range charge: <0.3 seconds
Main Software Functions
Channel 1 Measurement, Channel 2 Measurement, Channel 1 & 2 Measurement, Scintillator Measurement, Check Source Library, Chamber Library, Scintillator Baseline Library, Preferences
Charge Collection Modes
Timed Mode - Selectable timer from 1 to 600 seconds in 1 second increments
Continuous Mode (Manual Start/Stop) - Press Start to begin collection and Stop to end
Trigger Mode – current exceeding pre-selected trigger values starts and stops collection
Countup/Countdown Resolution
1 second (count up for Continuous Mode, count down for Timed Mode)
Trigger Levels for Charge
Collection Start value must be larger than stop value (set via Preferences interface)
Start 0.2 - 9.9 pA
Stop 0.1 - 9.8 pA
Operating Parameters
Temperature 15 to 35 °C
Relative Humidity 20 to 80% non-condensing
Pressure 650 to 770 mmHg
Storage Parameters
Temperature -15 to 50 °C
Relative Humidity 10 to 95% non-condensing
Pressure 600 to 800 mmHg
Display
Color LCD TFT touch screen. VGA (640x480) resolution, 6.4” diagonal
Input
2 channels, BNC two lug triaxial connector (TNC option is available.)
Bias Voltage
± VDC for the following: 0 to 1000 VDC in 1 VDC increments, 350 μA max
Zeroing
Zero via button push - Display indicates zeroing in progress
Ports
RS232 (Default: Uni-directional 19,200 baud, 8 data bits, no parity, 1 stop bit; Bi-directional operation via user commands, tech note available upon request) (2) USB ports (keyboard, thumb drive, or mouse support) Ethernet (internal use only, not currently supported)
Chamber library calibration coefficients
Amp System factors Nsk:μGym²/(h*A)
Nsk:Gym²/(h*A)
Nx,sk:Rm²/(h*A)
NA:GBq/A
NA:Ci/A
ND,W:mGy/(sec*A)
NA:MBq/A
NA:mCi/A
Coulombs System Factors Nk:Gy/C
Nx:R/C
NGas:Gy/C
ND:Gy/C
ND,W:Gy/C
Real-Time Clock
On board, for data validation and storage
Audio
On board speaker for audio feedback on start-up, button presses, operator alerts, etc.
Dimensions
Width 26.7 cm (10.5 in)
Height 8.1 cm (3.2 in)
Length 21.1 cm (8.3 in)
Weight 2.5 kg (5.45 lbs)
Mode of Operation Continuous
Power Requirements
100-240 VAC, 0.5 A max, 50/60 Hz input to external power supply, 9 VDC, 2.0 A power supply output to electrometer input, Globtek®, Inc. model GTM 96180-1811-2.0-T.
The use of any other power supply and using alternates other than the UL/CSA recognized power cord can degrade minimum safety. The proper replacements from Standard Imaging, Inc. are required for compliance with the requirements of IEC 60601-1.
Product Standards
IEC 60601-1:3rd Edition1, IEC 607312
1 Externally Certified; 2 Designed to Meet
Shock Classifications
Class I - External Power Supply
Class II - Electrometer
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