Dwyer RLD2 - Manual

Model RLD2 Refrigerant Leak Detector
Specifications - Installation and Operating Instructions
Bulletin TE-RLD2
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
SPECIFICATIONS
Sensor Type: Negative corona.
Sensitivity: 3g/yr.
Sensitivity Levels: 5.
Response Time: Less than 1 s (pump driven).
Temperature Limits: 32 to 125°F (0 to 52°C).
Power Requirements: (2) 1.5V AA alkaline batteries, included, user replaceable.
Battery Life: 30 hours.
Warm Up Time: 5 s.
Pre-programmed gases: Detects gases that contain chlorine, fluorine, bromine,
ethylene oxide and SF-6, as well as: CFCs: R11, R12, R500, R503, etc.;
HCFCs:R22,R123,R124,R502, etc.; HFCs:R134A,R404A,R125, etc.; Mixtures
such as: AZ-50, HP62, MP39 etc.
Alarm Setting: Audio: Variable tick; Visual: Flashing LED.
Probe Length: 12˝ (30.48 cm).
Duty Cycle: Continuous.
Weight: 5.2 oz (147.4 g).
Agency Approvals: CE, RoHS. The Model RLD2 is the most dependable negative corona refrigerant leak detector.
The responsive elements have a wide sensitivity range. This unit utilizes a five level
alarm system to detect excessive refrigerant in areas where there could be a
potential leak. The dual-color LED indicator lights provide visual indication of the
refrigerant gas concentration, various audio pitches facilitate detection, and its
portable design is convenient for the user. The refrigerant leak detector can be
utilized in residential and commercial refrigeration systems, automotive, air
conditioning, and quality control testing environments.
TECHNICAL FEATURES
This device consumes low power by utilizing an 8–bit microprocessor controller.
Also equipped is dual-colored LED indicator light with progressive and real time
display. The sensitivity is adjustable with seven level alarming indicated by the
audio levels and LED display. The indicators are convenient for maintenance
because of the modular sensor, battery voltage indication and auto rest testing
when the detector is turned on.
OPERATION KEYS
• ON/OFF Key: Press it to turn on/off the detector.
• SENS Key: It is the sensitivity adjustment key, it can adjust the sensitivity level
according to the detection demands (max level:7). LED light will indicate the level
of sensitivity, meanwhile the frequency of audible alarm changes. The higher the
sensitivity level, the faster the alarm frequency.
• RESET Key: Reset the background halogen level to “zero”, any leak sources
higher than “zero” level is considered to be a leak and trigger the alarm.
Before Operating the Leak Detector:
In order to detect leaks in a refrigerant system, the system must have normal
operating pressure, or at least reach a minimum of 50 PSI. Low environmental
temperature (lower than 59°F or 15°C) may lower the system required pressure and
may make the leak less likely to be detected. No leak detected does not mean the
system does not have a refrigerant gas leak. Check the pressure before making the
conclusion. Leaking areas are usually covered with contaminants such as a
compressor oil or dirt, be careful not to let the sensor tip touch with these
contaminants. This product’s function is to detect halogen's relative change at the
sensor tip. Pinpointing the leak source needs to be done manually by adjusting the
sensitivity and resetting the detector by the user.
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