Center 382 User manual
CONTENT Page
1. GENERAL INFORMATION ------------------ 2
2. FEATURES ---------------------------------------- 2
3. SPECIFICATION --------------------------------- 3
4. OPERATION GUIDE --------------------------- 4
5. PART & CONTROL------------------------------ 5
6. GETTING STARTED---------------------------- 7
6-1 Installing Batteries---------------------------- 7
6-2 Automatic Circuit/Reset Feature--------- 8
6-3 Feature Sensitivity Adjustment-------- 10
7. OPERATING PROCEDURE--------------- 11
8. REPLACING NEW SENSOR-------------- 13
9. CLEANING --------------------------------------- 14
Refrigerant Leak Detector
2
1. GENERAL INFORMATION
Thank you for purchasing Refrigerant Leak Detector.
Read though the instruction manual before operation
for correct and safe usage. Please store and retain
this instruction manual for future reference.
2. FEATURES
Refrigerant Leakage Detector is the perfect tool for
maintaining the air-condition or a cooling system with
compressor and Refrigerant. This unit uses a newly
developed semi-conductor sensor which is extremely
sensitive to variety of general used Refrigerant.
▪ Microprocessor Control with advanced digital
signal processing.
▪ Multi color visual display.
▪ High-median-Low leak sensitivity selector.
▪ Low battery indication.
▪ Semiconductor gas sensor.
▪ Detection of R-134a, R-410A, R-407C, R-22,
R-32, HFO-1234yf… Freon gas.
▪ Carrying case included.
▪ 15.5” (40 CM) flexible stainless probe.
▪ Reference Leak source included.
▪ Ambient concentration reset.
▪ Long-life, DC brushless fan.
▪ Automatic zero and background compensation.
Refrigerant Leak Detector
3
3. SPECIFICATION
Detectable Gases:
R-134a,404A,407C,410A,22,32, HFO-1234yf etc.
Sensitivity:
H
M
L
R-32,134a,404A
,407C,410A
HFO-1234yf
3g/year
15g/year
30g/year
R-22
4g/year
20g/year
40g/year
Alarm Method:
Buzzer, Tricolor LED bar Indicator.
Power Usage:
4 AA size (6V DC) Alkaline Batteries
Snake Tube length: 40cm ( 15.5” )
Dimension / Weight:
173 x 66 x 56 mm ( approximately 400g )
Accessories:
Alkaline batteries ( AA) X 4 pcs
User manual, leak check bottle, carry case.
Battery Life:
Approximately 7 hours normal use.
Auto power OFF: 10 minutes
Disable Auto Power Off:
Press and Hold “Hi” button then power on the meter.
Refrigerant Leak Detector
4
Warm-Up Time: Approximately 45 seconds
Operating Temperature & Humidity:
0 ~40 °C, < 80% RH
Storage Temperature & Humidity:
-10 ~60 °C, < 70% RH
Altitude: < 2000M (6500’)
4. OPERATION GUIDE
(1) The refrigerant leak detector unit is not equipped
with anti-explosive designs and measures. Do not use
this unit in the environment with the burnable gases.
(2) There are some environmental conditions that
might cause error reading:
▪ Pollutant places.
▪ Large temperature variation.
▪ Places with high wind velocity.
▪ Organic solvent, adhesive vapor, fuel gas and
vesicant will cause abnormal response from the
sensor. Try to avoid the environment involved with
this substance.
▪ Places fill with too much to Freon Gas.
Refrigerant Leak Detector
5
5. PARTS & CONTROL
5-1 Panel Description
Refrigerant Leak Detector
6
○
1Sensor
○
2Sensor Protector
○
3LED Leak Indicators
○
4Sensitivity Lo Button
○
5Sensitivity Hi Button
○
6Reset Button
○
7 Low Battery Indicator
○
8 Power On/Off
○
9Battery Cover
○
10 Battery Cover Screw
5-2 LED Leak Indicator Definition:
Refrigerant Leak Detector
7
6. GETTING STARTED
6-1 Installing Batteries
▪ Loose the screw and remove the battery
compartment door located on the bottom of the
instrument as show below (Fig.1).
▪ Install 4 “AA” size alkaline batteries.
▪ Reinstall the battery cover by aligning it with the
handle.
When the batteries are nearing the end of their useful
life, the Red LED Low Battery indicator illuminates. The
batteries should be replaced as quickly as possible.
4 “AA” size
alkaline batteries
Fig.1
Refrigerant Leak Detector
8
6-2 Automatic Ambient Reset Feature
This Refrigerant leak detector features an Automatic
Ambient Reset function that sets the unit to ignore
ambient concentrations of refrigerant.
▪ Automatic Ambient Setup - Upon initial power on,
the unit automatically sets itself to ignore the level
of refrigerant present at the tip. Only a level, or
concentration, greater than this will cause an alarm.
CAUTION!
Be aware that this feature will cause the unit to
ignore any refrigerant present at turn on. In other
words, with the unit off if you place the tip up to a
known leak and switch the unit on, no leak will be
indicated!
▪ Ambient Reset Feature - Resetting the unit during
operation performs a similar function, it programs
the circuit to ignore the level of refrigerant present
at the tip. This allows the user to 'home-in' on the
source of the leak (higher concentration). Similarly,
the unit can be moved to fresh air and reset for
maximum sensitivity. Resetting the unit with no
refrigerant present (fresh air) causes any level
above zero to be detected.
▪ After the unit is warmed up, the default sensitivity
level is set at “High” and Auto Reset function is
“ON”
▪ Auto Reset function is best used initially when user
Refrigerant Leak Detector
9
is moving around trying to identify leakage source.
Once the leak source is determined, cancel the
Auto Detect function to proceed with leakage
measurement.
▪ Auto Reset function should be turned OFF when
use in fixed position leakage detection.
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