ENMET Corporation PO Box 979 Ann Arbor, MI 48106-0979 SPECTRUM Series Instrument Manual 80012-011 December 1995 MCN-153; 04/22/96 MCN-157; 03/19/97 MCN-172; 06/12/97 MCN-187; 02/23/98 MCN-188; 03/26/98 MCN-204; 10/20/98 MCN-222; 11/12/99 MCN-228; 11/30/99 MCN-243; 09/25/00 MCN-259; 07/17/01 MCN-268; 11/05/01 MCN-276; 05/06/02 MCN-292; 02/14/03 MCN-301; 06/05/03 MCN-308; 10/16/03 MCN-311; 11/24/03 MCN-315; 02/12/04 MCN-348; 08/10/06 MCN-352; 10/06/06
Table of Contents 1.0 INTRODUCTION..................................................................................................................................... 1 1.1 Unpack...................................................................................................................................................... 1 1.1.1 Check Order .................................................................................................................................... 1 1.1.2 Serial Numbers .....
SPECTRUM Series ENMET Corporation 1.0 Introduction The SPECTRUM is a small portable battery operated single channel gas detection instrument. Depending on the sensor supplied with the instrument, it can detect one of a number of potential target gases. An electrochemical cell detects the gas, and the gas concentration is displayed on an LCD. Audio and visual alarms occur when the target gas concentration exceeds a preset alarm point.
ENMET Corporation SPECTRUM Series 1.2 Turn Instrument ON Turn the instrument ON, by pressing and holding the POWER / BACKLIGHT pushbutton for two seconds. In uncontaminated air, for most instruments the display should read 0000 within ten seconds of turn-on. For an oxygen Spectrum, the display reads near 20.9%. NOTE: Instruments using biased sensor, this time is extended to 4 minutes, stabilization may take as long as 1 hour. See Table 1. 1.2.1 Verify The SPECTRUM is calibrated prior to shipment.
SPECTRUM Series ENMET Corporation 2.0 Features and Operation The features of the SPECTRUM are shown in Figure 1. These are: DISPLAY An LCD upon which either the gas concentration, or prompts for the operational and maintenance menus, are given. PUSHBUTTON SWITCHES There are three of these, as follows: • POWER / BACKLIGHT The left hand switch when the instrument is held upright with the display facing the user. • OPTION The middle switch. The right hand switch.
ENMET Corporation SPECTRUM Series 2.1 Operation 2.1.1 Operational Menu The operation menu flow diagram is shown in Figure 2. This menu is accessed with the OPTION pushbutton switch, the middle switch of the three. Successive displays are achieved by repeatedly pushing the switch, as indicated by "O" in the menu flow diagram. The alarm acknowledgement function, and displays and function in the "see DATA" area, are accessed with the SELECT pushbutton, indicated by "S" in the operation menu flow diagram.
SPECTRUM Series ENMET Corporation 2.1.2 Turn ON and OFF Turn the instrument ON by pressing the POWER / BACKLIGHT pushbutton for two seconds. For most instruments, the display should read "0000" or near 20.9 within ten seconds when the instrument is in uncontaminated air. NOTE: Instruments using biased sensor, stabilization time is extended to 4 minutes. Complete stabilization may take as long as 1 hour. When instrument is turned on it may display XXXX + .
ENMET Corporation SPECTRUM Series 2.1.6 Battery Status and Low Battery Alarms The battery status display is accessed by pressing the OPTION pushbutton once. When this display is "Batt=OK", the battery energy level is sufficient for operation of the instrument. In this condition, the confidence beep occurs every thirty seconds when the instrument is not in alarm.
SPECTRUM Series ENMET Corporation 3.0 Maintenance 3.1 Maintenance Menu From the operational display, press the OPTION pushbutton four times; "go SETUP" is displayed. This is the entrance to the maintenance menu. The maintenance menu flow diagram is shown in Figure 3. From Operational Display To Operational Display INVALID go SETUP S Key=0000 O S VALID run ZERO S O Changes digit indicated by underscore cursor Locks underscored digit and moves cursor O AIR SET? S VALID INVALID z30:0.
ENMET Corporation SPECTRUM Series 3.1.1 Key Entrance to the maintenance menu is guarded with a four digit numerical key. The factory default setting of the key is 1270*. When the valid numerical key is inserted, the user is allowed to enter the maintenance menu When in the "go SETUP" location, press the SELECT pushbutton; "Key=0000" is displayed. The underscore cursor is under the left hand digit.
SPECTRUM Series ENMET Corporation 3.1.3 Calibration NOTE: Calibration must be performed at normal room temperature (20-25°C) for optimal performance. If the instrument is exposed to temperature extremes just prior to calibration, allow it to stabilize to room temperature. The internal temperature of the instrument is verified by cycling through the "see DATA" menu. In order to calibrate the instrument, it is first zeroed in a procedure similar to the one described section 3.1.2.
ENMET Corporation SPECTRUM Series 3.1.5 Setting the Battery Type A valid key entry sets the instrument at the "run ZERO" location of the maintenance menu. Press the OPTION pushbutton three times to access the "set BATT" display, then press the SELECT pushbutton; "Alk/Lith" is displayed. Press the OPTION pushbutton to cycle the display among the two types of batteries which are valid, "Alk/Lith" and "NiCad".
SPECTRUM Series ENMET Corporation 3.2.2 Sensor Removal and Replacement A low 9v battery may cause a “Cell Out” indication. Check or replace the 9v Battery if “Cell Out” is displayed. A sensor must be replaced when it no longer responds adequately to the target gas. This is indicated by a low gas concentration reading when exposed to a known concentration of the target gas, and the inability to calibrate the instrument, with a "C-FAULT" display after calibration.
ENMET Corporation SPECTRUM Series 4.0 Replacement Parts and Accessories ENMET part numbers for replacement parts and accessories: Calibration Accessories: Cylinder Adapter, 34 liters Cylinder Adapter, 17 liters *Calibration cup, (Initial Calibration) Calibration cup Sampling Adapter Calibration cup (Diffusion) *Used on all Sensor Replacements.
SPECTRUM Series ENMET Corporation 5.0 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.
ENMET Corporation SPECTRUM Series Appendix A: Calibration Data Tables Table 1: Gas Ranges, Alarm Points and Sensor Life Gas Range Alarm lower limit Alarm upper limit Factory Alarm Set Point Expected Sensor Lifetime Ammonia 0-100ppm 15ppm 50ppm 25ppm 1 year Arsine 0-0.99ppm 0.03ppm 0.10ppm 0.05ppm 1-1.5 years Carbon Monoxide 0-1000ppm 5ppm 200ppm 35ppm 2-3 years Chlorine 0-10ppm 0.5ppm 5.0ppm 1.
SPECTRUM Series ENMET Corporation Table 2: Spectrum Calibration Voltage and Countdown Times NOTE: The following are values used for production calibration. Not all gases are available for field calibration; contact ENMET customer service personnel.
ENMET Corporation SPECTRUM Series Appendix B: Interference Gases Interference Table for Selected Spectrum Sensors SPECTRUM Series for AMMONIA (3E-100 sensor) The following gases cause a reading: Interferant Gas/Vapor ethanol isopropanol hydrogen sulfide methanol hydrogen carbon monoxide sulfur dioxide nitrogen dioxide hydrogen cyanide Interferant Concentration in ppm 1000 450 14 1200 1000 300 25 50 10 Instrument Reading in ppm 1 1 10 3 80 100 -21 25 -18 The following gases or vapors have been tested an
SPECTRUM Series ENMET Corporation SPECTRUM Series for CHLORINE (3E sensor) The following gases cause a reading: Interferant Gas/Vapor hydrogen sulfide sulfur dioxide nitrogen dioxide bromine chlorine dioxide ammonia Interferant Concentration in ppm 10 5 5 1 0.32 1,000 Instrument Reading in ppm -0.3 -1.2 0.1 1.0 0.3 -1.1 The following gases or vapors have been tested and do not cause a reading: Interferant Gas/Vapor Concentration in ppm carbon monoxide 300 carbon dioxide 100,000 nitrogen 100.
ENMET Corporation SPECTRUM Series SPECTRUM Series for Hydrogen Chloride (3E 30 sensor) The following gases cause a reading: Interferant Gas/Vapor hydrogen bromide hydrogen sulfide sulfur dioxide chlorine hydrogen cyanide arsine ethanol Interferant Concentration in ppm 5 14 5 5 14 330 ppb 6.6% Instrument Readilng in ppm 5 30 3.5 1 1 .
SPECTRUM Series ENMET Corporation SPECTRUM Series for Fluorine (3E 10 sensor) The following gases cause a reading: Interferant Gas/Vapor chlorine hydrogen sulfide sulfur dioxide nitrogen dioxide bromine ammonia Interferant Concentration in ppm 1 10 5 5 1 1000 Instrument Reading in ppm 2 -1 -3.2 .5 3 -3.
ENMET Corporation SPECTRUM Series SPECTRUM Series for Nitric Oxide (3E 100 sensor) The following gases or vapors have been tested and do not cause a reading: Interferant Gas/Vapor Concentration in ppm chlorine 5 nitrogen dioxide 100 hydrogen 1000 carbon monoxide 1000 carbon dioxide 10000 saturated HC, alcohols abundant sulfur dioxide 50 SPECTRUM Series for Nitrogen Dioxide (3E sensor) The following gases cause a reading: Interferant Gas/Vapor chlorine ozone Interferant Concentration in ppm 1 1 Instrumen
SPECTRUM Series ENMET Corporation SPECTRUM Series for Ozone (3E 1 sensor) The following gases cause a reading: Interferant Gas/Vapor chlorine fluorine germane nitrogen dioxide Interferant Concentration in ppm 1 100ppb 1 1 Instrument Reading in ppm 0.80 0.07 1 0.
ENMET Corporation SPECTRUM Series SPECTRUM Series for Sulphur Dioxide(4S sensor) The following gases cause a reading: Interferant Gas/Vapor carbon monoxide hydrogen sulphide nitric oxide nitrogen dioxide Interferant Concentration in ppm 300 15 35 5 Instrument Reading in ppm <3 0 0 ≈-5 The following gases or vapors have been tested and do not cause a reading: Interferant Gas/Vapor Concentration in ppm chlorine 1 hydrogen 200 hydrogen cyanide 10 hydrogen chloride 5 ethylene 100 SPECTRUM Series for Arsine
SPECTRUM Series ENMET Corporation SPECTRUM Series for Phosgene (3E sensor) The following gases cause a reading: Interferant Gas/Vapor ammonia abundant change in humidity Interferant Concentration in ppm 50 Instrument Reading in ppm 5, drops to 0 in short time yes The following gases or vapors have been tested and do not cause a reading: Interferant Gas/Vapor Concentration in ppm hydrogen sulfide 1* sulfur dioxide 2 hydrochloric acid 5* carobn monoxide 300 carbon dioxide 5000 nitrogen 100% chlorine 1 hy
ENMET Corporation SPECTRUM Series APPENDIX C SPECTRUM for Hydrazine SPECTRUM For Hydrazine The detection of hydrazine, N2H4, is a specialized application. Generally, hydrazine gas blended in air or nitrogen in known verified amounts is not available to use as calibration gas in the field. Also, the sensor is not responsive to any other gas which could be used as a correlation gas. The sensor itself has a relatively short operating life, and should be replaced every six months.
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.
