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Gas Detector
INTRODUCTION
Hansen Technologies offers a complete line of industrial
quality Gas Detector, Controller and Alert Systems for
refrigerants and other common gases. These state-of-
the-art gas detection products utilize a range of sensing
technologies to suit a given application. Available in
several configurations to meet various application
requirements with optimum accuracy and reliability.
APPLICATIONS
Hansen Gas Detectors are suitable for use in industrial
refr iger ation engine r ooms, cold stor age r ooms,
processing rooms, truck docks, and for relief valve vent
lines. They are also suitable for use in supermarkets,
and large institutional and commercial buildings.
Typical gas detection applications include Ammonia,
Carbon Dioxide (CO
), Hydrocarbons, HFCs, HCFCs
2
and CFCs.
ADVANTAGES
Hansen uses a variety of sensor element technologies
including electrochemical, semiconductor and infrared
sensors to selectively detect most gases. These sensor
elements continuously determine the level of gas present
in the surrounding environment. The analog outputs (4-
20mA or 0-10V DC) can interface with nearly any existing
monitor, computer or PLC controller.
The sensor elements are mounted internally on the
enclosure. This helps to provide quick response to
potential leaks, particularly in still air. Electronics are
sealed in a IP66 enclosure which protects them from
moisture, dust and the surrounding gases, which in the
case of ammonia can shorten the life of electronics. The
sensing elements are easily replaced.
Gas Detectors have built-in visual and audible alarms.
High level, low level and fault IA, SPDT relay outputs
are standard. Testing and recalibration procedures
are simple.
Specifications, Applications,
Service Instructions & Parts
GAS DETECTORS,
CONTROLLER
& ALERT SYSTEMS
For Refrigerants and
other Common Gases
KEY FEATURES–REMOTE GAS DETECTORS
• Accurate, fast responding
• Linear 4-20mA or 0-10V DC output
• Audible alarm
• Power indicator
• SPDT alarm relays (Fail Safe Operation)
• 24V AC/DC low voltage power
• Shipped factory calibrated and tested
• CE approved
• CSA (Electrical Features Only)
KEY FEATURES–GAS DETECTION
CONTROLLER
• Visual alarm
• Audible alarm
• Power indicator
• Low level alarm relay
• High level alarm relay
• Fault relay
• Economical
• CE approved
KEY FEATURES−GAS ALERT SYSTEM
• Provides local display and alarm based on
measured target gas level via gas sensor
• Visual alarm, Amber LED light
• Audible alarm (mutable)
• Power indicator, Green
• Numeric PPM reading
• Bright LED Display
• Shipped factory calibrated and tested
Bulletin A100h
JANUARY 2020
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Table of Contents
Related Manuals for Hansen Technologies HGD-EC-NH3-100
Summary of Contents for Hansen Technologies HGD-EC-NH3-100
- Page 1 Common Gases Gas Detector INTRODUCTION KEY FEATURES–REMOTE GAS DETECTORS Hansen Technologies offers a complete line of industrial • Accurate, fast responding quality Gas Detector, Controller and Alert Systems for • Linear 4-20mA or 0-10V DC output refrigerants and other common gases. These state-of- •...
- Page 2 Remote Gas Detector 2 or 8 Channel Gas Detector Controller Handheld Gas Detector AMBIENT TEMPERATURE RANGE -40°F (-40°C) to 120°F (50°C) -4°F (-20°C) to 122°F (50°C) -13°F (-25°C) to 131°F (55°C) VOLTAGE REQUIREMENTS 24 VDC + 18%, 24 VAC + 20% 100-240 VAC, 50/60 Hz, 80W max 'D' Cell BaVery HUMIDITY RANGE (NON-CONDENSING) 5-90% RH, 15-90% RH (electrochemical) 5-90% RH 0-95% non-condensing OUTPUTS 4-20mA, 0-5V, 1-5V, 0-10V, 2-10 VDC RS485 Modbus RTU Slave RS-232, 0-1 VDC analog 4-20mA SIGNAL OUTPUT Isolated 2-wire ALARMS (3) SPDT RELAY, 1A @ 30V resisave load (3) SPDT RELAY, 1A @ 30V resisave load High, low, off ALTITUDE 0-2,000m ENCLOSURE IP67 NEMA 1 ACCURACY SC - <-10%/+15%, IF/EC - < + 5% Approx + 5% SC - 15min*, EC - 5min*, IF - 2 min* Start-up / Warm-up Time Up to 24hrs if not biased Approvals CE/EN 50270:2015/UL/CSA/IEC/EN 61010-1 UL/CSA/IEC/EN 61010-1 CE TABLE 1 * Up to 400% longer at temperature limits...
- Page 3 GAS DETECTOR LOCATION MOUNTING HEIGHT OF DETECTORS FIG. 1 Detectors should be located in an accessible area for maintenance and testing, but away from moving LIGHT GASES (AMMONIA) HEAVY GASES (CO2, HALOCARBON) LIGHT GASES (AMMONIA) HEAVY GASES (CO2, HALOCARBON) equipment that could accidentally come in contact with MOUNT NEAR GROUND LEVEL MOUNT NEAR GROUND LEVEL the sensor.
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Page 4: Stand Alone Control
GAS DETECTION SYSTEM CONFIGURATIONS mounted at a convenient height for servicing. A small There are a number of typical installation configurations length of tubing can be run for injecting test gas near to meet national and local codes. These diagrams are the sensor element. -
Page 5: Installation Dimensions
INSTALLATION DIMENSIONS INCHES (MM) FIG. 8 GAS DETECTOR COMPONENTS FIG. 9 Component Desscription M16 Cable Glands (x6) Rubber Gasket (IP66 Version Only) Internal Alarm Buzze Power Connections (x2) Digital Connection (MODBUS) Analog Connection Tactile Switch #1 Ribbon Cable to Sensor Tactile Switch #2 Relay 3 Connection (FAULT) Relay 2 Connection (HIGH) - Page 6 SENSOR ELEMENT IMPORTANT: Certain substances in the atmosphere to be monitored may impair the sensitivity of the sensors. Typical sensor element life is based on normal operating Such substances include, but are not limited to: conditions. Exposure to the target gas will shorten these times.
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Page 7: Modbus Rtu Rs-485 Interface
• MODBUS flag for warm-up is set. POWER & SIGNAL WIRING TABLE • Buzzer is off. Connec4on Descrip4on Label Wiring Termina4on • Relay state is “no alarm.” Connec4on Descrip4on Label Wiring Termina4on 24V IN: - 24 VDC/VAC neutral/ground 24 VDC/VAC in • Gas reading is invalid. 24V IN: - 24 VDC/VAC neutral/ground 24V IN: + 24 VDC posi4ve / VAC live 24 VDC/VAC in... -
Page 8: General Calibration Procedure
Ensure no cables are interferring with the sensor module and blink green-gre • Relay state is "no alarm." in a balance of air, not nitrogen (N oper seal in the IP66 version, the lid close the lid. 10. Apply calibration o 15 to 20 lb in (1.5 to 2.0 Nm). -
Page 9: Reset System To Factory Default Settings
REPLACING THE SENSOR ELEMENT HANSEN GAS DETECTOR APP COMPONENTS FIG. 12 The Hansen Gas Detectors come with a pre-calibrated sensor elements which maintain the sensor’s gas type and calibration information. Replacement sensor elements come pre-calibrated as well for the refrigerant type and calibration level. To replace the gas detector’s sensor element: 1. - Page 10 3. Select the instrument (default is “18TMAH”) from APP BUMP TEST PROCEDURE the list of available gas detectors Bump tests are required following installation of 4. When prompted, enter the passkey (default is “123456”) detector or after replacement of sensing element. Bump tests are also performed to verify the instrument 5.
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Page 11: Key Features / Specifications
KEY FEATURES / SPECIFICATIONS The Controller provides an interface by which you can monitor, acknowledge alarms, and observe conditions • 100 – 230 VAC, 50/60 Hz, 80W (max) inside the mechanical room. The HGD-C-8 LCD screen • Operating Temperature range -4°F (-20°C) to RES / SPECIFICATIONS - High alarm will display the current gas reading and gas type for... - Page 12 8-CHANNEL CONTROLLER INTERNAL COMPONENTS FIG. 15 Component Descrip/on AC Power Terminal Block Power Supply Cooling Fan SD Card Slot Coin Cell Ba@ery Reset Switch High Alarm Relay Low Alarm Relay Fault Relay Sensor Power Connector Sensor Data Connector BMS Data Connector AV Beacon Connector (beacon not shown) 2-CHANNEL CONTROLLER EXTERNAL COMPONENTS Component Descrip?on...
- Page 13 INSTALL DIMENSIONS 8-CHANNEL CONTROLLER FIG. 18 INSTALL DIMENSIONS 2-CHANNEL CONTROLLER FIG. 19 0.13 5.625 6" 5.625 6” '-- ----- - ---- -- ____ � ------' 1� 4 7 ¢.16 0.16 REFERENCE REFERANCE NOT TO SCALE NOT TO SCALE A100h JANUARY 2020...
- Page 14 CONTROLLER WIRING CONNECTIONS FIG. 20 A100h JANUARY 2020...
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Page 15: Installation
INSTALLATION Locate the RS-485 connectors in the Controller. The left RS-485 connector is for downstream “child” The Controller has been thoroughly inspected devices (includes a dedicated shield position) and the and tested prior to shipment from the factory. right RS-485 connector is used to connect to “parent” Nevertheless, it is recommended that the instrument devices upline, such as building management controls. - Page 16 Enter or edit the month, day, year, hour and minute installa;on or when the coin cell babery is changed. by scrolling the menu. Enter or edit the month, day, year, hour and minute by scrolling the menu. The real ;me clock should be checked and set amer From the RELAY menu, each of the three relays can be The real time clock should be checked and set after Prior to s installa;on or when the coin cell babery is changed. configured for either normal or failsafe operation. The installation or when the coin cell battery is changed. should ve default is normal, meaning normally open contacts Enter or edit the month, day, year, hour and minute by...
- Page 17 accessed either by selec;ng CHANNEL CONFIG from non- the main menu or by pressing the channel number . Amer key twice at the main screen. For each detector pted to channel there are 4 parameters the user set MON, e to edit there are 4 parameters the user set MON, TYP, ADR, The Controller comes with a 32Gb SD card installed, LOC. which can hold up to 10 years worth of log data. A TYP, ADR, LOC.
- Page 18 After power up, the firmware revision level will be protocol needs to be configured (Refer to Figure 21). indicated on the LCD followed by an LED/LCD and Using switch 1 (SW1) on the underside of the lid of the beacon self test. The controller will then begin Controller, use setting 4 to acknowledge whether the scanning connected detectors and display their Hansen gas detector will need to have the terminating...
- Page 19 The GAS Alert System is shipped factory calibrated INSTALLATION OF GAS ALERT SYSTEM and tested; ready to use. Mount in a loca;on safe and easily accessible. Avoid thermal extremes and The GAS Alert System is shipped factory calibrated and tested; ready to use. Mount in a location safe areas where falling water or condensa;on moisture and easily accessible.
- Page 20 WIRING SCHEMATIC FOR CONTROLLER AND DETECTOR GAS ALERT r7 r7 r7 I- --i t- --i t- -; L.J L.J L.J � � � � ::::; -I< 0 >- >- <I: <I: :i:: :i:: :i:: �� � � � � <n §.
- Page 21 Hansen Test Certificate Gas Detection Test Certificate Product Description:_____________________ Serial Number:__________________________ Date of First Calibration:__________________ Date of Last Calibration:___________________ Type/Range of Test Gas:_________________ 1. Carry out “Bump Test” (Set delay to zero) Initial the following, encircle “OK” when completed. Power (Green LED) _______________________________ OK Visual Alarm (Red LED) _______________________________ OK...
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Page 22: Warranty
Price Bulletin and Safety Precautions Sheet supplied with product. WARRANTY All Hansen products, except electronics, are guaranteed Hansen Technologies Corporation against defective materials or workmanship for one 681 Commerce Street year F.O.B. factory. Electronics are guaranteed against Burr Ridge, Illinois 60527 USA defective materials or workmanship for 90 days F.O.B.
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