Model 9-7S

Ion Chamber Stretch Scope

Part Number: 48-4449-1

Features

• Display Range: 0.001 R/hr to 19.99 kR/hr
• 1.1 to 3.8 m (3.7 to 12.6 ft.) Telescoping Stainless Steel Pole
• Accommodates Ludlum Model 9-7 and Eberline RO-7 Ion Chamber Detectors
• Digital Readout
• Backlit Display
• Click-To-Frequency-Driven Audio
• Detectors Have Removable Beta Shields

The Ludlum Model 9-7S is a telescoping pole integrated with a digital readout and control unit that can be attached to any compatible ion chamber (sold separately) to provide remote monitoring in high-range beta and gamma fields. The gamma measurement range is 0.001 R/hr to 19.99 kR/hr, covered by four separate ion chamber detectors (see Detectors tab). These ion chambers are connected directly to the instrument at the tip of the pole. The Model 9-7S automatically recognizes which detector is connected so no recalibration or adjustment is required when switching detectors.

The backlit LCD displays three easily-readable digits with a floating decimal point to indicate the measurement along the R/hr scale. When connected to the highest range detector, a separate kR/hr indicator is prominently illuminated to warn the operator of the higher scale in use. Controls include a rotary switch for selecting instrument on/off and battery status, an LCD backlight switch (lamp on/off), an audio on/off switch, and a zero adjust knob.

Note: The Model 9-7S is not RoHS compliant.

• Specifications
• Detectors
• Options
• Documents

• Specifications
• Detectors
• Options
• Documents

Specifications

Compatible Detectors	Sold separately. Ludlum Models: See Detectors tab. Eberline Models: RO-7-LD, RO-7-BM, RO-7-BH
Display	3½-digit LCD with 1.3 cm (0.5 in.) digits and floating decimal point; backlit illumination controlled by switch
Indicators	Battery OK (green lamp) kR/hr range active (red lamp)
Response Time	Approximately 2.5 seconds to 90% of final reading
Controls	OFF, BAT TEST, ON rotary power switch LAMP ON-OFF toggle switch (for display backlight) AUDIO ON-OFF toggle switch ZERO ADJUST knob
Audio	Produces clicks in low radiation fields, switches to a low-frequency pitch in moderate radiation fields and increases the pitch frequency in high radiation fields, all relative to the detector used
Power	Two "D" cell batteries, approximately 160 hour battery life
Working Environment	Splashproof shields for outdoor use (environmental rating of IP52)
Temperature Range	-20 to 50 °C (-4 to 122 °F)
Humidity	0 to 90%, non-condensing
Construction	Aluminum housing with beige powder coat, polished stainless steel telescoping pole
Size (H x W x L)	11.6 x 10.7 x 113 cm (4.6 x 4.2 x 44.5 in.) retracted, 384 cm (151.3 in.) fully extended, excluding detector
Weight	approx. 2.9 kg (6.4 lb), including batteries

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Detectors

Model	9-7-BLD	9-7-BHL-1	9-7-BM	9-7-BH
Image
Part Number	47-3693-1	47-3882-1	47-3694	47-3696
Range	0.001 to 1.999 R/hr	0.01 to 19.99 R/hr	0.1 to 199.9 R/hr	0.01 to 19.99 kR/hr
Resolution	0.001 R/hr (1.0 mR/hr)	0.01 R/hr (10 mR/hr)	0.1 R/hr (100 mR/hr)	0.01 kR/hr (10 R/hr)
Linearity	± 10%
Ion Chamber	Aluminum housing, plastic lined thin entry window filled with air at atmospheric pressure; Aluminum housing thickness nominally 1.5 mm (0.060 in.); Acrylic thickness nominally 3.2 mm (0.13 in.)
Active Chamber Volume	50 cm3 (3.1 in.3)	7 cm3 (0.43 in3)	7 cm3 (0.43 in3)	7 cm3 (0.43 in3)
Window	7 mg/cm2 aluminized Mylar
Beta Shield	removable acrylic shield, approximately 9 mm thick
Temperature Range	-20 to 50 °C (-4 to 122 °F)
Humidity	0 to 90%, non-condensing
Size (Dia. x L)	4.5 x 22.1 cm (1.75 x 8.7 in.), including beta shield	4.8 x 14 cm (1.9 x 5.5 in.), including beta shield	4.8 x 14 cm (1.9 x 5.5 in.), including beta shield	4.8 x 14 cm (1.9 x 5.5 in.), including beta shield
Weight	0.3 kg (0.7 lb), including beta shield	0.18 kg (0.40 lb), including beta shield	0.18 kg (0.40 lb), including beta shield	0.18 kg (0.40 lb), including beta shield

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Options

Option	Description	Part Number
Transport & Storage Case	Case to hold Model 9-7S and detectors. Case is watertight, crushproof, and dust proof, with wheels for easy transport. Custom cut foam keeps the instrument and detectors protected and secure in the case.	4272-444-01

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Documents

• Model 9-7S Data Sheet
• Model 9-7 Detectors Data Sheet
• Product Manual
• Detectors CE Certificate

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