Only three push-buttons are needed for operation: "ON/OFF", "LIGHT" for display backlight enable, and "SPEAKER" push-button for audible indicator volume control. Three ways of indications enable the RAM GAM-1 user to monitor and survey rapidly and accurately: a large four 7-segment LCD, an audible click whose rate varies directly with count rate, and a LED indicator that flashes with each incident radiation pulse.
-20C to +60C (-5F to 140F) Humidity range 40% to 95% RH (non condensing) Casing metal anodize aluminum Dimensions 13 cm x 7.2 cm x 3.4 cm (5.12" x 2.83" x 1.34") Weight 400 g (0.88 lbs) (include battery) RAM GAM-1 Operating Manual Page 6...
LED: A LED indicator, located above the LCD, flashes with each incident radiation pulse. c. Display backlight: Press the LIGHT push-button to turn display backlight off to on, or on to off. Display backlight will turn automatically off after 10 seconds. Page 7 RAM GAM-1 Operating Manual...
3.4. Units of Measurement Selection The RAM GAM-1 is supplied with a touch panel showing both units of measurement (µSv/h and mR/h). The red LED is lit next to the relevant unit on measurement upon power up. The instrument is supplied to the customer with the units of measurement factory set.
If the reading exceeds threshold value and then quickly decreases to below 75% of threshold value, the ALr. LCDs and the beep are automatically canceled, even though the SPEAKER push-button has not been pressed. Page 9 RAM GAM-1 Operating Manual...
The battery compartment is located at the instrument back. To replace the battery, unscrew two screws at the battery compartment cover. Use one 9-Volt alkaline battery; be sure to connect it with the right polarity. RAM GAM-1 Operating Manual Page 10...
3.9. Using Chargeable batteries The RAM GAM-1 has the capability to connect to an external power transformer which provides 9VDC 0.5A. Power. This input can also be used to charge chargeable batteries. In order to make your instrument compatible to using chargeable batteries, you need to solder a jumper into E1 holes.
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SPEAKER or LIGHT push-button is not pressed for more than 3 seconds. 4.1.10. When the required reading (factor) is obtained, turn the internal switch back to the measuring position and the meter will enter the measuring mode. RAM GAM-1 Operating Manual Page 12...
U10 – mR/h U20 – uSv/h Each press on the SPK push button will move from one to other measuring unit. To save the new measuring unit Press on the SPK for 10 second again. Page 13 RAM GAM-1 Operating Manual...
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