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ENMET Corporation
PO Box 979
Ann Arbor, MI 48106-0979
TARGET Series
Portable Gas Detector
Operation & Maintenance Manual
Manual Part Number
80012-014
MCN-380, 11/07/07
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Table of Contents 1.0 Introduction.................................................................................................................................................. 1 1.1 Warnings and Cautions...............................................................................................................................................1 1.2 Unpack.........................................................................................................................................
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6.5 Replacing Battery Pack.............................................................................................................................................20 6.6 Replacing Internal Pump...........................................................................................................................................20 6.7 Replacing Sensors ...........................................................................................................................................
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TARGET Series ENMET Corporation 1.0 Introduction 1.1 Warnings and Cautions The TARGET Series gas detectors are designed to detect hazardous atmospheric conditions. An indication of life threatening hazards should be taken very seriously. NEVER ignore an alarm condition. WARNINGS: • Any rapid upscale combustible gas reading followed by a declining or erratic reading may indicate a gas concentration beyond the upper-scale limit. This may indicate a flammable concentration. • Off-scale reading
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TARGET Series ENMET Corporation ENMET either repairs or replaces damaged equipment and invoices the carrier to the extent of the liability coverage, usually $100.00. Repair or replacement charges above that value are your company’s responsibility. The shipping company may offer optional insurance coverage. ENMET only insures shipments with the shipping company when asked to do so in writing by our customer. If you need your shipments insured, please forward a written request to ENMET Cus
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TARGET Series ENMET Corporation See Figures 1 and 2 Visual Alarms There are visual alarms for each of the gas sensors installed. Display 4 line by 20 character dot-matrix LCD with on-demand back light. I/O and Charging Port Connector for battery charger, computer cable, remote annunciator cable, and earphone. BRH Visual alarms Oxygen Tox 1 Combustible D Diis sp plla ay y Tox 2 I/O and Charging Port Figure 1: Front View Figure 2: Sensor View See Figures 3 and 4 Horn Audio Alarm ON/OFF Button Po
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TARGET Series ENMET Corporation 2.4 Locations and Data logging The TARGET instrument has the ability to store users or location information and log exposure information. TARGET Trakker software is required for these operations. Further details on its operation and interaction with the instrument is provided in software manual. If desired, contact ENMET or your local distributor. 3.0 Instrument Operation 3.1 Turning the Instrument On and Off 3.1.1Turning the TARGET On Press and hold the ON/OF
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TARGET Series ENMET Corporation 3.2 Charging the Battery WARNING: Never charge the TARGET instrument in a hazardous location The TARGET instrument has a 4.8 volt, nickel metal hydride (NiMH) battery pack. The supplied battery charger charges the instrument batteries usually in three to four hours. The charger is supplied with a power cord for connection to 110 VAC wall outlet. The batteries may also be charged in the same time frame with a 12 VDC vehicle accessory adapter. Instrument electr
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TARGET Series ENMET Corporation Table 1: Battery Life Normal operation with standard sensors A fully charged NiMH battery pack may provide up to 18 hours of operation. It may take several charge and discharge cycles to achieve optimal battery performance. Normal operation with BRH toxic sensor installed If the BRH toxic gas sensor is installed or the internal motorized sample pump is used continuously, instrument operation time is Or while using the optional internal pump. reduced. Typical op
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TARGET Series ENMET Corporation 3.4.3 Over-range and Under-range Alarms The over-range alarm activates audio and visual alarms. It can occur if the instrument is exposed to a gas concentration higher than its display range. Over-range alarms cannot be acknowledged. An alarm for the Toxic or Oxygen sensors clears once the over-range condition clears. The over-range alarm for the combustible sensor is latching and will not clear until the instrument has been removed from the affected area, t
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TARGET Series ENMET Corporation 3.5.2 Calibration Status The TARGET instrument keeps track of the date of last calibration for each sensor. To view the last calibration date, press and hold the Menu button to enter the Pop-Up menu. Press the MENU button two times to move the asterisk to the Cal Status position, then the SELECT button once to select the Calibration Status screen. The display shows the status of up to three sensors. Press the SELECT button to view the remaining sensors. If a
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TARGET Series ENMET Corporation 3.5.5 Internal Sampling Pump If the TARGET instrument has the optional internal sampling pump installed, the Pop-Up menu provides the ability to turn the pump on and off. CAUTION: Some gases require that the pump be on for proper detection and calibration. See Section 8.0, Tables 3 and 4. To turn the pump on or off: Press and hold the Menu buttons to enter the Pop-Up menu. Press the MENU button five times to move the asterisk to the Pump position. Press th
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TARGET Series ENMET Corporation 4.0 Basic User Operation The TARGET instrument has two operation levels, BASIC and ADVANCED. The BASIC mode is intended to simplify instrument operation and discussed here. The ADVANCED menu provides additional information and is discussed in section 5. The instrument may be changed to the ADVANCED menu by following the procedure outlined in sections 6.3 and 6.3.7. The TARGET operational menu is used to access various information stored in the instrument elec
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TARGET Series ENMET Corporation 5.0 Advanced User Operation The TARGET instrument has two operation levels, BASIC and ADVANCED. The BASIC mode is intended to simplify instrument operation and is discussed in Section 4. The ADVANCED menu provides additional information and is discussed here. The TARGET operational menu is used to access various information stored in the instrument electronics. Press the MENU button to display the operational menu and an asterisk next to a function or sub-menu
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TARGET Series ENMET Corporation 6.0 Maintenance Operations 6.1 Recommendations Instrument calibration should be performed at least once every three months. Field tests using gas concentrations above alarm level should be performed at least monthly or prior to each use for seldom used instruments. For frequently used instruments, field tests should be performed bimonthly to weekly. A field test consists of applying field test or calibration gas and confirming appropriate gas sensor response.
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TARGET Series ENMET Corporation 6.3.2 Zero Adjust The calibration zero procedure is activated by pressing the SELECT button again. This starts a 30 second count down timer, at the end of which, the zero reading is stored in memory. The next screen displays the span gas concentration. CAL: O2/CO/H2S/Mth CAL: O2/CO/H2S/Mth Example: Sampling CLEAN AIR Apply Multi-Blend MENU:Exit Display of Calibration Count Down SEL: frwd MENU:Exit Sample in 30 sec. NOTE: The oxygen sensor requires only the ini
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TARGET Series ENMET Corporation Sensor end cap w/cal shield Regulator Humidifier Bowl Cylinder, Calibration Gas Example of Storage Case used as Support Calibration Adapter, BRH 04834-005 for Humidifier Sensor end cap w/cal shield Sensor end cap w/cal shield Regulator Regulator Humidifier Bowl Top View of Humidifier Bowl To Regulator ←To Sensor Cylinder, Calibration Gas Cylinder, Calibration Gas Calibration Adapter, BRH 04834-002 Calibration Adapter, Reactive Gases Figure 8: Various Calibratio
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TARGET Series ENMET Corporation 6.4 Advanced Maintenance Menu, Software 4.94 version The Advanced Maintenance menu provides access to enhanced programming features of the TARGET instrument. To enter the Advanced Maintenance menu, press the MENU button repeatedly from the main gas display or Operation menu. Move the asterisk until it is next to the Maintenance menu line. Press the SELECT button to move to the password entry screen. The password is set to 1270 from the factory. Press and hol
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TARGET Series ENMET Corporation button at the Exit line to go back to the Maintenance menu. STEL and TWA alarms are preset at the factory and can only be changed using the TARGET Trakker software package. Calibrate SELECT SET ALARMS *Set Alarms *O2 19.5 / 23.5 % Enable Sensors CO 35 ppm Set Clock/Chirp H2S 10 ppm Example: Display of Set Alarm Menu 6.4.3 Enable Sensors From the Advanced Maintenance menu, press the MENU button twice once to put the asterisk next to the Enable Sensors line.
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TARGET Series ENMET Corporation 6.4.6 Set Battery Type From the Advanced Maintenance menu, press the MENU button five times to put the asterisk next to the Set Battery line. Press the SELECT button to enter the Set Battery screen. Use the MENU button alternate between NiMH (rechargeable) and Alkaline. Press the SELECT button to choose the desired battery type. Setting the proper battery type is important to achieve maximum life out of the battery pack. WARNING: Substitution of batteries or
