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
Table of Contents 1.0 Introduction.................................................................................................................................................. 1 1.1 Warnings and Cautions ...............................................................................................................................................1 1.2 Unpack....................................................................................................................................................
6.5 Replacing Battery Pack............................................................................................................................................. 20 6.6 Replacing Internal Pump........................................................................................................................................... 20 6.7 Replacing Sensors ....................................................................................................................................................
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.
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 Customer Service.
TARGET Series See Figures 1 and 2 Visual Alarms Display I/O and Charging Port ENMET Corporation There are visual alarms for each of the gas sensors installed. 4 line by 20 character dot-matrix LCD with on-demand back light. Connector for battery charger, computer cable, remote annunciator cable, and earphone.
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/OFF button.
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.
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 Or while using the optional internal pump. If the BRH toxic gas sensor is installed or the internal motorized sample pump is used continuously, instrument operation time is reduced.
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.
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.
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.
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 electronics.
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.
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.
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 Sampling CLEAN AIR MENU:Exit Sample in 30 sec.
TARGET Series ENMET Corporation Sensor end cap w/cal shield Regulator Humidifier Bowl Cylinder, Calibration Gas Example of Storage Case used as Support for Humidifier Calibration Adapter, BRH 04834-005 Sensor end cap w/cal shield Sensor end cap w/cal shield Humidifier Bowl Regulator Regulator Top View of Humidifier Bowl ←To Sensor To Regulator§ Cylinder, Calibration Gas Cylinder, Calibration Gas Calibration Adapter, BRH 04834-002 Calibration Adapter, Reactive Gases Figure 8: Various Calibrat
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.
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 *Set Alarms Enable Sensors Set Clock/Chirp SELECT SET ALARMS *O2 19.5 / 23.5 % CO 35 ppm 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.
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.
TARGET Series ENMET Corporation 6.4a Advanced Maintenance Menu, Software 6.0 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.
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 *Set Alarms Enable Sensors Pump Cal Exit SELECT SET ALARMS *O2 19.5 / 23.5 % CO 35 ppm H2S 10 ppm Example: Display of Set Alarm Menu 6.4a.3 Enable Sensors From the Advanced Maintenance menu, press the MENU button twice once to put the asterisk next to the Enable Sensors line.
TARGET Series ENMET Corporation 6.5 Replacing Battery Pack WARNING: Substitution of batteries or other components may compromise the intrinsic safety of the instrument. Replacing the battery pack is accomplished by removing the two screws holding the sensor end-cap of the instrument housing. A 2 mm allen key is required. Slide the battery pack out and disconnect it from the PCB connector. CAUTION: the battery pack cable has a locking connector.
TARGET Series ENMET Corporation 6.7 Replacing Sensors When sensors can no longer be calibrated, they must be replaced. Replacing them is accomplished by removing the two screws holding the sensor end-cap of the instrument housing. A 2 mm allen key is required. Two #6-32 screws hold a bracket over the sensor board. Remove the screws and bracket. Remove the 2 spacers beneath the bracket to remove the sensor circuit board. Replace sensors as necessary and re-assemble. See figures 10 and 11.
TARGET Series ENMET Corporation 7.0 Instrument Information 7.1 Replacement Parts List Replacement Parts: ENMET Part No.
TARGET Series ENMET Corporation Replacement Sensors: ENMET Part No.
TARGET Series ENMET Corporation 8.0 Default Alarm and Configurations Table 3: Default Alarm Gas Full Scale Display Resolution Alarm 1 Alarm 2 TWA STEL Calibration Gas Value Ammonia Arsine 99 ppm 1.00 ppm 1 ppm 0.01 ppm 25 ppm 0.05 ppm 50 ppm 0.10 ppm 25 ppm 0.10 ppm 35 ppm 0.10 ppm BRH 200 ppm 1 ppm 100 ppm 150 ppm X X 25 ppm NH3 0.5 ppm PH3 0.
TARGET Series ENMET Corporation 9.0 Flow Diagrams Table 5: Target Menu Quick Reference Basic Operation: See section 9.1 Advanced Operation: See section 9.3 Standard Maintenance: Main Gas Display; Date/Time/Battery; Alarm Values; Maintenance Menu; Back to Main Display Main Gas Display; Date/Time/Battery; Alarm Values; Min/Max; TWA Values; STEL Values; Maintenance Menu; Back to Main Display Calibration; EXIT See section 9.2 Advanced Maintenance: See section 9.
TARGET Series ENMET Corporation 9.2 Standard Maintenance Menu CALIBRATION MENU *BRH O2/CO/H2S/Mth *Calibrate Exit Individual Sensors See below CALIBRATION MENU BRH *O2/CO/H2S/Mth See below Individual Sensors MENU SELECT CALIBRATION MENU BRH O2/CO/H2S/Mth See below *Individual Sensors CALIBRATION MENU *Exit Calibrate *Exit 02 20.
TARGET Series ENMET Corporation 9.3 Advanced Operation Menu 02 20.9% CO 0ppm Mth0%LEL H2S 0ppm BRH 0ppm MENU *Date/Time/Batt Alarm Values Min / Max Values TWA Values May 21 1999 72°F 05:19:00pm On:10:05 Bat Gauge 4.80V 25%: ||||| NOT CHARGING Charge started: May 20 1999 4:30 pm Chrg:25% Time:3:38 MENU Date/Time/Batt *Alarm Values Min / Max Values TWA Values MENU 02 19.5/23.5% CO 35ppm Mth10%LEL H2S 10ppm BRH100ppm CO 200ppm H2S 15ppm STEL ALARMS MENU 02 20.
TARGET Series ENMET Corporation 9.4 Advanced Maintenance Menu, Software 4.94 version *Calibrate Set Alarms Enable Sensors Set Clock/Chirp ADV CALIBRATION MENU CAL: BRH *ZERO: 0 ppm SPAN: 100 ppm BRH: 196 mV *BRH O2/CO/H2S/Mth Individual Sensors CALIBRATION MENU *Exit Calibrate *Set Alarms Enable Sensors Set Clock/Chirp To change zero gas value SET ALARMS *O2 19.5 / 23.5 % CO 35 ppm H2S 10 ppm CAL: BRH ZERO: 0 ppm *SPAN: 100 ppm BRH: 1504 mV SET ALARMS *O2 19.5 / 23.
TARGET Series ENMET Corporation 9.4 Advanced Maintenance Menu, Software 6.0 version *Calibrate Set Alarms Enable Sensors Pump Cal Exit ADV CALIBRATION MENU *BRH O2/CO/H2S/Mth Individual Sensors CAL: BRH *ZERO: 0 ppm SPAN: 100 ppm BRH: 196 mV CALIBRATION MENU *Exit Calibrate *Set Alarms Enable Sensors Pump Cal Exit SET ALARMS *O2 19.5 / 23.5 % CO 35 ppm H2S 10 ppm To change zero gas value CAL: BRH ZERO: 0 ppm *SPAN: 100 ppm BRH: 1504 mV SET ALARMS *O2 19.5 / 23.
TARGET Series ENMET Corporation 10.0 Troubleshooting Symptom Possible Cause Action Unit will not turn on. Dead battery Plug instrument into charger. Check charge status. Sensor fails calibration Failed sensor Replace sensor and recalibrate Wrong gas concentration Use proper calibration gas. Old calibration gas Replace calibration gas. Calibration due on status line Sensor hasn’t been calibrated in last 30 days. Check Cal Status in Pop-Up menu. Calibrate affected sensor(s).
TARGET Series ENMET Corporation 11.0 WARRANTY ENMET warrants new instruments to be free from defects in workmanship and material under normal use for a period of eighteen months from date of shipment from ENMET. The warranty covers both parts and labor excluding instrument calibration and expendable parts such as calibration gas, filters, batteries, etc... Equipment believed to be defective should be returned to ENMET within the warranty period (transportation prepaid) for inspection.
PO Box 979 680 Fairfield Court Ann Arbor, Michigan 48106-0979 734.761.1270 Fax 734.761.3220 Returning an Instrument for Repair ENMET instruments may be returned to the factory or any one of our Field Service Centers for regular repair service or calibration. The ENMET Repair Department and Field Service Centers also perform warranty service work.
Repair Return Form Mailing Address: ENMET Corporation Shipping Address: ENMET Corporation PO Box 979 Ann Arbor, Michigan 48106 Phone Number: FAX Number: Attn: Repair Department 680 Fairfield Court Ann Arbor, Michigan 48108 734.761.1270 734.761.
