Thermo Scientific™ FH 40 G Multi-Purpose Digital Survey Meter

The FH 40 G is a versatile multipurpose meter and area monitor that can be used with external detectors for portable and remote area monitoring applications.

• Rugged, waterproof and reliable with very simple operation.
• Gamma meter with internal proportional counter tube.
• Integrated gamma dose rate measurements.
• Interface for one optional, external plug and play probe.
• Alarm thresholds for the internal detector and external probes of the FH 40 G are monitored simultaneously.
• Upon connection of an external plug and play probe, the probe parameters are automatically read into the FH 40 G and the correct parameters are set.
• High voltage generation inside the plug and play probe makes the system calibration independent of cable length.
• Separate alarms can be set by the user for both the internal and external detectors.
• Operational internal proportional detector and connected external detector.
• Serial infrared interface.
• Type tested by PTB (German version).
• Type tested for use by German fire brigades.
• Simultaneous operation of internal and external detectors, both dose rate and remote dose rate readings.
• Configuration and data read out via PC.
• Waterproof (IP 67) and shock resistant.
• ADF mode (Advanced Digital Filter).
• Clear, backlit LCD display.
• Datalogging capability.
• Internal diagnostics ensure proper functioning of the detector(s) and the electronics.
• Designed to record up to 256 data points containing measurement number, date, time and dose rate at the internal detector and external detector, status, and optional barcode information.
• Wide range of plug and play external probes for monitoring and detection.
• All FH 40 G versions and external probes containing the "-10" suffix are designed to meet the energy response behavior of the new SI-units ambient dose equivalent and ambient dose equivalent rate according to ICRU 39.

Short summary of available plug and play probes:

• Gamma dose rate measurement: FHT 192 (ionization chamber), FHZ 632 (proportional counter), FHZ 612 (wide range), FHZ 302/312 (under water nuclear power).
• Gamma search probes: FHZ 502, 503, 512 (NaJ/BGO).
• Contamination: FHZ 742 (Scintillator), FHZ 732 (Pancake/proportional counter), FHZ 382 (Scintiallator + Alpha/Beta discriminator via LED indication if alphas are present).
• Aritificial radiaiton discrimination: NBR probe FHZ 672.
• Preamplifiers for various classic probes.
• Wide range of accessories like cables, telepoles, application specific kits, etc.