ENMET Corporation PO Box 979 Ann Arbor, MI 48106-0979 EX-2000 Operation and Maintenance Manual 80006-015 MCN-281; 11/13/02 MCN-299; 05/23/03 MCN-321; 11/05/04 MCN-350; 08/15/06
Table of Contents 1.0 INTRODUCTION .................................................................................................................................... 1 1.1 Unpack ......................................................................................................................................................1 1.2 Check Order ..............................................................................................................................................1 1.
EX2000 ENMET Corporation 1.0 Introduction The EX-2000 is a small, pocket-size personal gas detector for monitoring flammable gases. This lightweight hand-held instrument is an effective warning device for staff working in areas that can contain combustible gases. certified for use in group II explosive atmospheres and only when it is equipped with cells or The EX-2000 instrument is batteries of the type recommended by the maker.
ENMET Corporation EX2000 3 arrowhead symbols Up, Down, Negative indicators 3 small digits 4 large digits (may display 3 digits in normal operation) 4 pictograms Display features Sensor (Under Sensor Cover) Sensor Cover Visual Alarm Audio Alarm Belt Clip (On Back Side) Display (See display features above) ALARM / PLUS Switch PROGRAMMING / CHARGING PORT (Under Port Cover) PROGRAMMING PLUG See Maintenance Section 4.
EX2000 ENMET Corporation 2.0 EX-2000 Features See figure 1 for location of features listed below.
ENMET Corporation EX2000 3.0 Operation Refer to Figure 1 for location of the EX-2000 switches, alarms and display. While in operation the EX-2000 will regularly sound a chirp or “beep” to indicate the instrument is turned on and in normal operation with no faults detected. This confidence chirp is set at the factory and can not be altered or turned off. EX-2000 is programmed at the factory for a specific target gas which is displayed on a label on the left side of the instrument.
EX2000 ENMET Corporation 3.1.1 Alarms Audio and visual alarms will activate in pulsed or continuous, to indicate the type of alarm being triggered. The display will indicate the threshold or code of the alarm. To clear a threshold alarm after leaving the dangerous area, press and release the ALARM switch. NOTE: If the alarm threshold is still exceeded: The visual alarm will continue to flash and the threshold pictogram will remain indicated.
ENMET Corporation EX2000 3.1.2 Scrolling of Parameters To view the present status of MIN, MAX and battery level press the BACKLIGHT switch twice. Example of parameter sequence: Display Sequence Audio and Visual alarms are active during this sequence: 3 arrowhead symbols indicate instrument is not in measurement display mode. 1. The Minimum (lowest) measurement detected since the EX-2000 was started-up or reinitialized (see section 3.1.4) 2. Press the BACKLIGHT switch again. 3.
EX2000 ENMET Corporation 3.2 Shutting down the EX-2000 To turn off the EX-2000 press and hold the ENTER switch. Example of display at shut down: Display Sequence The display indicates count down of shut down: 2 OFF 1 OFF 1. Hold down ENTER switch while instrument counts down internal shut down sequence. 0 OFF 2. Audio alarm beeps once to indicate the instrument is off. 3. Release the ENTER switch. 3.3 Charging the EX-2000 The EX-2000 is powered by a rechargeable NiCd battery pack, 3.6V – 0.8 Ah.
ENMET Corporation EX2000 4.0 Maintenance The EX-2000 is a safety instrument so needs to be calibrated regularly to insure accuracy. CAUTION: The procedures and adjustments described in the following sections must be performed by authorized personal. Failure to follow instructions may jeopardize accurate measurements. To enter the maintenance menus: 1. Insert the programming plug into the programming/charge port on the side of the instrument, see Figure 1. 2.
EX2000 ENMET Corporation 4.2 Calibrating the EX-2000 The only way to check if the EX-2000 detection function is working properly is the calibration performed with a standard gas. Calibration must be performed: Every 6 months minimum. After an exposure to high gas concentrations. After more than one month storage with no use. After a sensor change. Following an instrument fault. The recommended standard gas is stated on the target gas label, located on the side of the EX-2000.
ENMET Corporation EX2000 To calibrate an EX-2000 with a gas other than the programmed/labeled gas refer to the coefficient table below. We recommend using 50% LEL levels of gases. Other levels are acceptable. Example: Ethyl Acetate recommended calibration gas is Butane and its coefficient factor is 0.9 50%LEL multiplied by the coefficient of the programmed gas 0.9 equals 45. Apply the 50%LEL Butane to the instrument and adjust the reading on the display to read 45. Calibration is complete.
EX2000 ENMET Corporation 4.3 Replacing the EX-2000 Sensor The EX-2000 is equipped with a catalytic sensor with a microprocessor source. Being a vital element of the gas detector, the sensor module must be treated with care. Mechanical impacts, splashing with water etc… may impair the quality of the measurement or even, in extreme cases destroy the sensor. A water-repellent and anti-dust filer fixed to the sintered metal protects the head of the sensor.
ENMET Corporation EX2000 6.0 WARRANTY ENMET warrants new instruments to be free from defects in workmanship and material under normal use for a period of one year 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 PO Box 979 Ann Arbor, Michigan 48106 Phone Number: FAX Number: Shipping Address: ENMET Corporation Attn: Repair Department 680 Fairfield Court Ann Arbor, Michigan 48108 734.761.1270 734.761.
