The Ludlum Model 9-7S is a stretch pole and ratemeter that can be attached to any compatible ion chamber (sold separately). This instrument provides remote monitoring in high-range beta and gamma fields. The gamma measurement range is 0 to 19.99 kR/hr, covered by three separate detectors (see Detectors tab). These ion chambers are connected directly to the instrument at the tip of the pole, and the Model 9-7S controller automatically recognizes which detector is connected so no recalibration or adjustment is required when switching detectors. The backlit LCD displays three easily-readable digits together 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.
Features
Digital Readout
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
Backlit Display
Display Range: 0 to 19.99 kR/hr
Click-To-Frequency-Driven Audio
Specifications
Display - 3½-digit LCD with 1.3 cm (0.5 in.) digits and floating decimal point
Controls -
Power switch for OFF, BAT TEST, ON
LAMP ON-OFF
AUDIO ON-OFF
ZERO ADJUST
Response Time - Detector dependent, approximately 2.5 seconds to 90% of final reading
Indicators - LED indicators for:
Low Battery Alert
kR/hr Range Active
Display Range - Detector dependent, see Compatible Detectors above
Working Environment - Splashproof shields for outdoor use (environmental rating of IP52)
Power - 2 "D" cell batteries, approx. 160 hour battery life