GM 1-2 Product Instructions

IN071

Rev B

IN071

Rev B

RadStar GM 1-2 Grab Sampler/Manometer

Turning Grab Sampler On:

Connect radon sample and filter tube to Sample Port. Turn knob to left [Grab Sampler]. The unit will beep; the pump and display will activate.

RadStar GM-1,2

HV Charging…..

After the High Voltage charges for 60 seconds* the bottom display line will display live results.

RadStar GM-1,2

000cnts 360secs

 Live Display

(Note: Pressing [NEXT/ZERO] key switch will reset Live Display counter.)

After 360 seconds the top display line will display the previous 6 minute sample results and the bottom line will reset for another sample:

010cpm 10pCi/l

000cnts 000secs

To Select Grab Sampler Options:

Press [ENTER]

Unit will display:

 Previous Sample

RadStar GM-1,2

Grab Sample?

Press [NEXT/ZERO]

 Press [ENTER] to return to Grab Sample Mode.

RadStar GM-1,2

Radon Units?

Press [NEXT/ZERO]

 Press [ENTER] to select pCi/l or Bq/m3

RadStar GM-1,2

Beep?  Press [ENTER] to select Beep On or Off.

Press [NEXT/ZERO]

CAUTION: DO NOT SUCTION DUST, DIRT OR WATER WITH RADON SAMPLE TUBE.

*NOTE: [ENTER] or [ZERO/NEXT] Pushbutton switches will not respond while HV is charging.

IN071

Rev B

Turning Manometer On :

Connect one end of pressure tubing to Low manometer port** and the other end to pressure source to be measured. The High manometer port is a reference open to atmosphere. Turn knob to right [Manometer].

The unit will beep and the display will activate.

RadStar GM-1,2

+.000 Inches WC

To Zero Display Reading:

Disconnect any pressure source from High and Low Ports.

Press [NEXT/ZERO]

 Low Pressure Range (0 to .250 Inches WC or 0 to 62 Pascals)

RadStar GM-1,2

Zeroing…………

AutoRange:

When a pressure is applied that exceeds the Low Pressure range the unit will automatically change to the

High Pressure setting. Press [RESET] to change back to Low Pressure range.

RadStar GM-1,2

+0.00 Inches WC  High Pressure Range (0 to 8.00 inches WC or 0 to 2000 Pascals)

To Select Manometer Options:

Press [ENTER]

Unit will display:

RadStar GM-1,2

Manometer?

Press [NEXT/ZERO]

 Press [ENTER] to return to Manometer Mode

RadStar GM-1,2

Pressure Units?

Press [NEXT/ZERO]

 Press [ENTER] to select Inches WC or Pascals

RadStar GM-1,2

Time Average?

Press [NEXT/ZERO]

 Press [ENTER] to select Time Average On or Off

**NOTE: The Low manometer port will measure positive or negative pressures.

Measuring pressure by connecting to the High manometer port will display opposite polarity (+ or -) readings.

IN071

Rev B

RadStar GM1-2 Instrument Specifications

Radon Mode: 6 minute

Range:

Grab Sampler, Brushed DC Sampling Pump rated for 500 hrs

0 to 999 picoCuries per liter (pCi/L or

0 to 37,000 Bequerels per cubic meter (Bq/m3)

Manometer Mode: (2) Ranges- 0 to .250 Inches WC or 0 to 62 Pascals

0 to 8.00 Inches WC or 0 to 2000 Pascals

User Selectable Options:

Power:

Units, Beep, Time Average

120VAC 60Hz Transformer, rechargeable NiCad battery.

Indicators:

Rotary Switch:

Communication Port:

Pushbuttons:

Operating Range:

2 X 16 LCD Display, Green AC Power LED

2 Position, [Grab Sample] [Manometer]

RS-232 port, for use by manufacturer only.

Momentary [Enter] [Next/Zero] [Reset]

Temperature 55 ̊ F to 85 ̊ F

Size:

Length

Width

Height

Weight

10 3/4 inches

9 3/4 inches

4 7/8 inches

Color:

Warranty:

Federal Safety Orange/Black

1 year