GL Sciences LD239 Instruction Manual

Leak Detector LD239 Instruction Manual
Thank you for purchasing the Leak Detector LD239.
To maintain the optimum performance, read this manual before using it.
Before operating the LD239, please read this operation manual carefully to
ensure proper use. We recommend that you keep this operation manual on
hand near the product for future reference.
Introduction
Safety Notices
1. Attention
The Leak Detector LD239 indicates leaks through a dual system that
consists of an indicating LCD and an audible alarm.
LD239 is a highly sensitive instrument especially to detect helium gas and
hydrogen gas leaks, and that helps identify gas-leakage spot.
This manual indicates safety notices as follows,
1
Improper use contrary to the caution may lead to
deterioration in system performance or damage to the
system.
Warning
<Caution>
Caution
㨯
Do not use the attached recharge micro USB cable
for other equipments.
㨯
When removing or attaching the recharger to the
detector, make sure that the power of the detector is
OFF.
Warning
Caution
<Caution>
Improper use contrary to the warning may result in the
operator’ s death or serious injury.
Improper use contrary to the [caution] may result in
injury to the operator or property damage.
LD239 is not an explosion-proof equipment. Therefore,
do not use the detector in areas at risk of fire, explosion
or large flammable gas leaks.
㨯
LD239 is not a safety guard against hazardous or
flammable gases.
㨯
Do not open the detector’s body except replacing a
battery.
22-1 Nishishinjuku 6-Chome
Shinjuku-Ku, Tokyo 163-1130 Japan
Tel: 81-3-5323-6611
Fax: 81-3-5323-6622

GL Sciences LD239 Specifications

Operating Environment

temperature range	10 - 40°C

Battery

battery type	Rechargeable Lithium ion battery
battery life	up to five hours continuous use
recharge time	2.5 hours for a full recharge

Detection Specifications

detection method	Thermal conductivity
target gases	Helium, Hydrogen, CO2, Argon, Neon and other non-corrosive gases
sensitivity standard range	minimum 0.005 ml/min (He)
sensitivity high range	minimum 0.0005 ml/min (He)

Weight and Dimensions

weight	95 g
width	50 mm
depth	19.5 mm
height	111 mm