Model 375-600

Digital Area Monitor for Small Areas

Part Number: 48-3458

Features

• Integrated Measurement System
• Internal Scintillator Detector
• User-Programmable Alarm Settings
• Highly Visible Red Strobe Alert
• Audio and Visual Alarms
• Networkable, Requires Ethernet or Webpage Interface Option
• 8-Hour Battery Backup

The Model 375-600 is a highly integrated, high-sensitivity gamma measurement system that combines all components into one convenient package, thus making installation simpler and less costly. The internal detector is a 10.3 L (630 in³) plastic scintillator shielded on five sides with 0.32 cm (0.125 in.) lead. The controller is Ludlum's popular Model 375 digital controller, which is located at one end of the cabinet. A red strobe is mounted on the top along with a large, industrial strength alarm acknowledgement pushbutton. The detector is accessible from a removable panel, and the entire system sits on a plate, which can be bolted to the floor. See Model 375 for additional detail and available options.

• Specifications
• Options
• Documents

• Specifications
• Options
• Documents

Specifications

Detector	Internal 10.3 L (630 in3) lead shielded plastic scintillator Dimensions: 38 x 71 x 3.8 cm (15 x 28 x 1.5 in.)
Sensitivity	30 kcpm per μR/hr (137Cs)
Shielding	0.32 cm (0.125 in.) lead, on five sides
Display	Four-digit LED display with 2 cm (0.8 in.) digits
Display Range	000.0 to 9999
Display Units	kcpm (other units available upon request)
Linearity	Reading within 10% of true value with detector connected
Response	Typically 3 seconds from 10% to 90% of final reading
Indicators	STATUS: Green light, indicates instrument functioning properly LOW ALARM: Yellow LOW ALARM light and slow beep (1 per second), can be set at any point from 0.0 to 9999 HIGH ALARM: Red HIGH ALARM light and fast beep (4 per second), can be set at any point from 0.0 to 9999 SIGMA ALARM: Red light and rapid beep DET FAIL: Red light and audible tone (greater than 68 dB at 60.1 cm [2 ft]); indicates detector overload, no count from detector, or instrument failure LOW BAT: Yellow light, indicates less than two hours of battery power remaining OVERLOAD: "-OL-" display and audible FAIL alarm indicates detector saturation OVERRANGE: "----" display and activated low and high alarms indicates measure radiation field has exceeded the counting range
Audio	Intensity varies from approximately 69 dB to 100 dB through operation of the external rotary baffle and the internal voltage connection. Frequency is approximately 3 kHz.
Calibration Controls	Accessible from front of instrument (protective cover provided)
Data Output	9-pin connector providing five-decade logarithmic output, RS-232 output, signal ground connection, FAIL and ALARM signals (current sink), and direct connection to battery and ground
Power	95 - 135 Vac (178 - 240 Vac available), 50 - 60 Hz single phase, 6 volt sealed lead-acid rechargeable battery (built-in)
Battery Life	Typically 8 hours in non-alarm condition
Battery Charger	Battery is continuously trickle-charged when instrument is connected to line power and turned on
Construction	Steel housing with aluminum door, ivory powder coat finish
Temperature Range	-15 to 50 °C (5 to 122 °F) May be certified for operation from -40 to 65 °C (-40 to 150 °F)
Size (H x W x D)	61 x 91.5 x 30.5 cm (24 x 36 x 12 in.)
Weight	60.8 kg (134 lb)

---

Options

Option	Description	Part Number
Model 375 Series Options	Various options are available for the Model 375 Series including: Enclosures Remote displays Alarm annunciators Signal outputs Software & networking options	Various

---

Documents

• Data Sheet
• Product Manual
• Ethernet Manual Addendum (for instruments with ESP32 Ethernet board)

---