Features

• Reliable plug in "smart" combustibles, oxygen, hydrogen sulfide and carbon monoxide sensors
• Strong protective rubber boot
• Water and dust resistant
• Rugged ABS plastic/metal case
• Protects from interference by portable radios
• One button calibration with auto zero capability
• Sample flow rate at 150 cc/min
• Patented security mechanism warns of sample tube crimping or blockage
• Prevents liquid flow into monitor with optional collapsible sample probe
• Option of alkaline, Li-Ion and automotive 12V adapter charger
• Field replaceable batteries
• Unit will run and charge simultaneously
• Large keys operable with three layers of gloves
• Loud audible alarm
• Bright visual alarm
• Standard 20,000 point datalogging storage capacity for download to PC compatible with Windows 95, 98, 2000 and NT

Specifications

Detector	Protected catalytic bead for combustible gases
	Electrochemical sensors for oxygen and toxic gases
Battery	Interchangeable Li-Ion and alkaline battery packs, rechargeable units include Li-Ion battery pack with internal smart charging, 120V AC/DC wall adapter and spare alkaline battery pack
Operating Hours	12 hours continuous operation (typical), extended Li-Ion battery produce 18 hours continuous operation (typical). Unit will run and charge simultaneously (not recommended for hazardous locations)
Display	2 line, 16 digit LCD with LED back light automatically in dim light or alarm condition
Key Pads	1 operation key and 2 programming keys
Attachment	Wrist strap and high visible boot
Direct Readout	Instantaneous values: Oxygen as % by vol, Combustible gas as % of lower explosion limit (LEL), Toxic gases as parts per million by volume
	High and low values for all gases
	STEL & TWA values of toxic gases
	Battery and shut down voltage
	Date, time, elapsed time, temperature
Alarm	90 dB buzzer and flashing red LED to indicate exceeded preset limits: High - 3 beeps and flashes per second, Low - 2 beeps and flashes per second, STEL & TWA - 1 beep and flash per second
	Alarms latching with manual override or automatic reset
	Additional diagnostic alarm and display message for low battery and pump stall
Calibration	Two point field calibration for zero and span gas
Datalogging	Standard 20,000 points (100 hours, 4 channels at one minute intervals) down load to PC with serial number of unit, user ID, site number, calibration date
Sampling Pump	Optional internal pump, user selectable flow rate. High - 250cc/min, Low - 150 cc/min
Low Flow Alarm	Auto shut off pump at low flow condition
Temperature	-4° to 113°F
Humidity	0 to 95% relative humidity (non-condensing)
Intrinsic Safety	UL & cUL Class I, Division I, Group A, B, C, D, T3C
Size	4.65" L x 3" W x 1.9" H
Weight	16 ounces
Warranty	Lifetime on non consuming components, 2 years for O2, LEL, CO & H2S sensors, 1 year for pump and battery

Sensor Specifications

Sensor	Range	Resolution	Response Time
Oxygen	0-30%	0.1%	15 seconds
Combustible Gas	0-100% LEL	1%	15 seconds
Carbon Monoxide	0-500 ppm	1 ppm	20 seconds
Hydrogen Sulfide	0-100 ppm	1 ppm	30 seconds

Sensor Specifications and Cross Sensitivities

Defining the Interval between Calibration Checks

Guide to Atmospheric Testing in a Confined Space

Confined Spaces and the Construction Industry

Carbon Monoxide & Natural Gas Detection for Fire Department Engine Companies