Combustible Gas Detectors (XP-311II)

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Simple, large button operation, analog gas reading at a glance makes the XP-311II the easiest detector to use on the market.Based on the proven and successful previous version,the XP-311II is designed to be more affordable.It is the perfect detector to meet the safety.monitoring requirements of many industries.

Features :

Low battery, sensor & pump error alarm
High / Low range changeover switch
Automatic sampling by built-in pump
Automatic zero adjustment function
Remaining battery level indication

Specifications

Model	XP -311 II
Detectable gas	Combustible gas
Detection principle	Catalytic combustion
Gas sampling method	Automatic sampling by built-in pump
Detection range	0 to 100% LEL
Indication accuracy *1	+5% LEL of full scale value
Alarm set value	20% LEL
Alarm method	Buzzer sounds and red lamp flashes at gas alarm.
Power supply *2	Four AA alkaline batteries (LR6) or manganese batteries (R6PU or R6P) functions
Continuous operating time *3	AA alkaline batteries (LR6), 20^oC, no alarm, backlight OFF: General: Approx. 10 hours Methane: Approx. 8 hrs.
Response time *4	30 s max. (90% response)
Operating temperature and humidity range	-20 to 50^oC, 95% RH max. (with no condensation)
Explosion-proof structure	Ex ibd II BT3 (intrinsically safe and flame-proof design) *5
Main functions	Zero adjustment (Automatic zero adjustment for the sensor can be performed at startup and as required.) Buzzer stop (The buzzer can be stopped using a switch when it sounds.) Backlight (The backlight can be turned ON using a switch.)
Dimensions	Approx. W79 x H161 x D43.5 mm (excluding protrusions)
Weight	Approx. 480 g (including batteries)
Accessories	Soft case, shoulder belt, AA alkaline batteries, attachment (AT-2), Drain Filter (DF-112), two replacement Filter Elements
Optional items	1-m gas sampling hose (with Drain Filter and sampling pipe)

Indication accuracy: Under identical measurement conditions
Use only the specified batteries for the power supply.
The continuous operating time depends on such factors as the environmental conditions, operating conditions, and manufacturer of the batteries.
The response time applies for an ambient temperature of 20±2°C.
Hydrogen and acetylene are not applicable for the explosion-proof structure.

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Combustible Gas Detectors (XP-311II)

Specifications

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