Rki-instruments GX-94 Manual de usuario

RKI Instruments, Inc. 33248 Central Ave.Union City, CA 94587800-754-5165 GX-94Operator’s Manual Part Number: 71-0008RKEdition: Revision P2Released:

Page 9 GX-94 Operator’s Manualeasy viewing of the display, the light sensor prompts the display back-light to turn on.NoteThe backlight does not opera

GX-94 Operator’s Manual Page 10The GX-94 uses two “C” size cells. Alkaline batteries will run the GX-94 for approximately 12 hours of non-alarm operat

Page 11 GX-94 Operator’s Manualdiffusion screen and scrubs out H2S and most hydrocarbons which cause a response on the CO sensor.SensorsThe sensors ar

GX-94 Operator’s Manual Page 12labels. The toxic sensor is housed in a cylindrical plastic shell with four connection pins at the base for easy replac

Page 13 GX-94 Operator’s ManualOPERATIONThe GX-94 has four operating modes: normal operation mode, display mode, setup mode, and calibration mode. Thi

GX-94 Operator’s Manual Page 14turned off.) The Battery Voltage Screen displays.Press DISPLAY/(ADJ.) to reset these measurements. The Battery Voltage

Page 15 GX-94 Operator’s ManualWhen the GX-94 successfully completes its self check, the OK message displays instead of the STAND BY message, then the

GX-94 Operator’s Manual Page 16DEMAND ZERO PROCEDURE DESCRIBED IN THE CALIBRATIONSECTION. REPEAT THE VERIFY OPERATION PROCEDUREDESCRIBED AB

Page 17 GX-94 Operator’s ManualALARMSAlarm Indications1. Combustibles (HC) Low and High AlarmIf the combustible gas detected exceeds the low alarm set

GX-94 Operator’s Manual Page 18and the message “TWA” will alternate with the gas name on the display in the field for that gas.6. Ceiling (CLG) Alarm,

Page 1 • Warranty GX-94 Operator’s Manual WARRANTY RKI Instruments, Inc., warrants the GX-94 sold by us to be free from defects in materials, workm

Page 19 GX-94 Operator’s ManualWhen the charge drops to the lower limit, the following screen displays:The buzzer and alarm LED are on steadily and th

GX-94 Operator’s Manual Page 20To continue using the GX-94, turn it off, then follow the start-up sequence. During start-up, the Fail screen will disp

Page 21 GX-94 Operator’s ManualDISPLAY MODEThe GX-94 has four operating modes: normal operation, display mode, setup mode, and calibration mode. With

GX-94 Operator’s Manual Page 22To enter or update a User and Station ID, press ON/OFF/INPUT. The first character under USER ID will flash (* is default)

Page 23 GX-94 Operator’s ManualAverage ScreenThe Average function shows the average gas concentrations detected since the unit was turned on. The aver

GX-94 Operator’s Manual Page 24Short-Term Exposure Limit (STEL) ScreenThe STEL function shows the average reading for H2S and CO during the last 15 mi

Page 25 GX-94 Operator’s ManualBattery Voltage ScreenThe Battery Voltage function shows the minimum operating voltage and current battery voltage. New

GX-94 Operator’s Manual Page 26Clear Data Logger ScreensThe Clear Data Logger screens allow the user to clear the data logger memory. This function sh

Page 27 GX-94 Operator’s ManualSETUP MODEThe advanced microprocessor program in the GX-94 allows the user to select and adjust many of the detection a

GX-94 Operator’s Manual Page 28AIR/▲ and (SHIFT)/▼ buttons.Entering Setup Mode1. Take the GX-94 to a fresh air location—the instrument does not detect

Page 2 • Table of Contents GX-94 Operator’s Manual TABLE OF CONTENTS INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 29 GX-94 Operator’s ManualUpdating the Gas Combination (2. COMBINE GAS)Sets the display and circuitry for types of gases to be detected; there ar

GX-94 Operator’s Manual Page 30oxygen levels and the HIGH O2 alarm is an increasing alarm, for rising oxygen levels.•SET ALARM <H2S>Allows the u

Page 31 GX-94 Operator’s ManualSetting the Data Logging Frequency (6. SET TIME INTERVAL)Sets the time between the logging of the instantaneous reading

GX-94 Operator’s Manual Page 32to scroll rapidly through values.Setting the Data Logging Alarm (11. SET LOG ALARM)When the Data Logger memory capacity

Page 33 GX-94 Operator’s ManualCALIBRATION MODECalibration mode allows you to calibrate the GX-94’s sensor response. It also includes a menu item whic

GX-94 Operator’s Manual Page 34with the fixed flow regulator and RKI Four Gas Cylinder. It also includes instructions for calibration with individual ga

Page 35 GX-94 Operator’s ManualThe GX-94’s calibration menu includes two methods of calibration: auto calibration or single calibration.• Auto Calibra

GX-94 Operator’s Manual Page 36one or more concentrations do not match, continue with step 4.4. To adjust the values on this screen, hold down the (SH

Page 37 GX-94 Operator’s Manualcalibrate. The other sensors calibrate normally. The buzzer and alarm LED activate. Press the AIR/▼ button to reset the

GX-94 Operator’s Manual Page 382. Press the ON/OFF/INPUT button to display the HC CAL. screen. The gas reading is flashing2. Screw the regulator onto t

GX-94 Operator’s Manual Table of Contents • Page 3 SETUP MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Tips for

Page 39 GX-94 Operator’s Manualreads “OXYGEN ZERO”. Verify the concentration of oxy-gen listed on the cylinder’s label and set the zero readingto the

GX-94 Operator’s Manual Page 40NOTEThe time is displayed in military format, a 24 hour clockinstead of a 12 hour clock.5. After the minutes are entere

Page 41 GX-94 Operator’s ManualMAINTENANCEMain Batteries1. Check the battery voltage periodically by pressing the DISPLAY button to reach the Battery

GX-94 Operator’s Manual Page 42Lithium Memory Backup BatteryThe memory backup battery is a 3.0 volt lithium battery which protects against loss of the

Page 43 GX-94 Operator’s Manual6. Install a fresh battery in the battery holder. Use a CR2032 3.0 volt coin type lithium battery. See the Parts List a

GX-94 Operator’s Manual Page 442. Remove the diffusion screen.3. Remove the old charcoal filter w/rubber boot from the CO sensor diffusion port. Place

Page 45 GX-94 Operator’s ManualToxics SensorsReplace the sensor when:1. The detection circuit cannot be calibrated correctly.2. The display does not s

GX-94 Operator’s Manual Page 461. Take the GX-94 to a non-hazardous location and turn the power off.2. Remove the four (4) Phillips screws from the bo

Page 47 GX-94 Operator’s ManualACCESSORIESSample-Drawing PumpThe GX-94 Sample-Drawing pump converts the GX-94 into a portable sample drawing system. T

GX-94 Operator’s Manual Page 48inserts into the threaded hole in the sensor screen, then tighten it to connect the pump and the instrument.3. Connect

GX-94 Operator’s Manual Page 4 INTRODUCTION The RKI Model GX-94 is an advanced gas detection instrument in use internationally for personal protectio

Page 49 GX-94 Operator’s ManualPump Maintenance1. Replace the pump battery when the pump won’t start or can’t maintain flow adequate to keep the Low Fl

GX-94 Operator’s Manual Page 50PARTS LISTTable 4 lists replacement parts and accessories for the GX-94.Table 4: Parts ListPart Number Description06-12

Page 51 GX-94 Operator’s Manual80-0009RK-10 Hose,10 ft., polyurethane, for use with pump or aspirator adapter80-0150RK Probe, for use with pump or asp

Page 5 GX-94 Operator’s Manual SPECIFICATIONS Table1 lists physical and environmental specifications for the GX-94. Table 2 lists specifications for th

GX-94 Operator’s Manual Page 6 1 Alarms are user adjustable. See Viewing and Setting Alarms in the setup mode section. Table 2: Sensor/Channel Spec

Page 7 GX-94 Operator’s ManualDESCRIPTIONCaseThe GX-94 has a high impact, RF shielded ABS plastic case with a rub-ber guard that also functions as a w

GX-94 Operator’s Manual Page 8GX-94 is carried or clipped on a belt. It contains the display, the touch-pad buttons that control the many functions of