OPERATING INSTRUCTIONS FOR Model 2240 Handheld Hydrogen Leak Detector P/N M2240 1/31/2011 DANGER Toxic and explosive gases may be present in this monitoring system. Personal protective equipment may be required when servicing this instrument. Hazardous voltages exist on certain components internally when the battery charger is connected. Do not recharge battery in a hazardous environment. Only authorized personnel should conduct maintenance and/or servicing.
Handheld Hydrogen Leak Detector CONTENTS 1. 2. 3. Model 2240 PAGE Description..........................................................................9 Specifications......................................................................9 Unpacking the Instrument………………………………..….10 4. Operation............................................................................13 4.1 Startup...............................................................................13 4.2 Shutdown............................
Handheld Hydrogen Leak Detector Model 2240 Copyright © 2011 Teledyne Analytical Instruments All Rights Reserved.
Handheld Hydrogen Leak Detector Model 2240 Specific Model Information This instrument is specifically designed to measure hydrogen in air. Using this instrument to analyze any other gas mixture may result in serious error. Consult the factory for additional information for gas analysis not specified at the time of purchase.
Handheld Hydrogen Leak Detector Model 2240 DANGER COMBUSTIBLE GAS USAGE WARNING The Model 2240 instrument is CE approved. This rating applies only to the equipment specified and installed in accordance with the information contained within this manual. It is the customer's responsibility to ensure safety especially when combustible gases are being analyzed since the potential of gas leaks always exist.
Handheld Hydrogen Leak Detector Model 2240 Hydrogen is flammable at 4% in air. Take indications seriously and be prepared to take action. In the event of detection of 4% or higher of a hydrogen gas concentration there is a high probability of a hazard to safety. Inform local emergency response personnel immediately. Safety Messages Your safety and the safety of others is very important. We have provided many important safety messages in this manual. Please read these messages carefully.
Handheld Hydrogen Leak Detector Model 2240 NOTE: Additional information and comments regarding a specific component or procedure are highlighted in the form of a note. CAUTION: THE ANALYZER SHOULD ONLY BE USED FOR THE PURPOSE AND IN THE MANNER DESCRIBED IN THIS MANUAL.
Handheld Hydrogen Leak Detector Model 2240 IF YOU USE THE ANALYZER IN A MANNER OTHER THAN THAT FOR WHICH IT WAS INTENDED, UNPREDICTABLE BEHAVIOR COULD RESULT POSSIBLY ACCOMPANIED WITH HAZARDOUS CONSEQUENCES. This manual provides information designed to guide you through the installation, calibration operation and maintenance of your new analyzer. Please read this manual and keep it available.
Handheld Hydrogen Leak Detector Model 2240 1. Description Teledyne Analytical Instruments believes that protecting lives means being able to locate and find hydrogen leak as quickly as possible. With two sensing elements on the same semiconductor die, the Model 2240 can detect hydrogen leaks as low as 15 ppm and will not saturate or be destroyed when detecting concentrations of hydrogen up to 100%. The flexible cable allows the sensor probe access to virtually all potential leak sources.
Handheld Hydrogen Leak Detector Model 2240 2. Specifications Sensitivity Range: 0.0015% (15 ppm) to 100% hydrogen by volume in air. Response Time: Indication of hydrogen within seconds. Stabilization to final value depends on concentration. Ambient Temperatures: Operating: 0°C to +40 °C Storage: -20°C to +45 °C Relative Humidity: 0-95% non-condensing Power: Internal rechargeable Lithium Ion battery yields over 10 hours of operation and is recharged in 4 hours with included charger.
Handheld Hydrogen Leak Detector Model 2240 Figure 2-1: User Interface Teledyne Analytical Instruments Page 11 of 30
Handheld Hydrogen Leak Detector Model 2240 3. Unpacking the Instrument The Model 2240 is shipped with all the materials you need to install and prepare the system for operation. Carefully unpack the instrument and inspect it for damage. Immediately report any damage to the shipping agent. Figure 3-1 shows the items that are included in the package.
Handheld Hydrogen Leak Detector Model 2240 4. Operation 4.1 Startup To power-up the Model 2240, press and hold the ON/OFF button until the Controller LCD display indicates an operational message. Warning: Only power-up the instrument in a hydrogen-free environment. After power is on, the instrument takes about ten minutes to warm-up. During this time the LCD displays a countdown to completion and the Probe Tip LED is amber.
Handheld Hydrogen Leak Detector Model 2240 A fully charged battery should last 10 to15 hours, depending on use. There is a small load on the battery when the unit is powered off. This load will discharge the battery of the unit in it’s powered off state in about 6 months. Customers that do not use the device frequently should charge the battery and perform a bump test with hydrogen gas every one to three months to keep the battery charged and ready for use. 4.
Handheld Hydrogen Leak Detector Model 2240 The Probe Tip LED Indicator shows an increase or decrease in hydrogen concentration. Leak detection is accomplished by watching the Probe Tip LED and the bar graph array and moving the sensor around a potential hydrogen leak.
Handheld Hydrogen Leak Detector Model 2240 The number of yellow LEDs lit in the Probe LED bar graph array indicates detected hydrogen concentrations in four ranges as noted below: LED Bar Graph Array 1 Yellow LED: > 0.01% hydrogen > 100 ppm 2 Yellow LEDs: > 0.
Handheld Hydrogen Leak Detector 4.5 Model 2240 Hydrogen-Free Areas For the purposes of this document a hydrogen-free area is one with less than 5ppm of hydrogen in the air. It may be difficult to find a hydrogen-free area in a facility where hydrogen is used. Nearby rooms, or even the entire building, may not be hydrogen free. To check these areas reset or zero the sensor outside, away from any hydrogen tanks, pipes, or other potential sources. Walk through the facility, watching the sensor.
Handheld Hydrogen Leak Detector Model 2240 pressing the ENTER key, pressing any other key will abort the operation. WARNING: The instrument must be in a hydrogen free environment with the LCD indicating less than 0.1% hydrogen before invoking the Zero operation.
Handheld Hydrogen Leak Detector Model 2240 5. Keypad 5.1 Numerical Changes In the following sections when queried to change a numeric value the ▲ (up arrow) and ▼ (down arrow) keys are used to increment/decrement the value based on the selected digit. If the ones digit is selected the value will increment/decrement by one (9 increments to 10, 10 decrements to 9). The ◄ (left arrow) and ► (right arrow) keys are used to select another digit.
Handheld Hydrogen Leak Detector 5.3 Model 2240 General Keypad Functions (Also See Section 11) Key Navigation Editing Values ENTER Enter Select Value submenu ▲ Previous Increase Value Menu ▼ Next Menu Decrease Value ► Enter Move Cursor Right Submenu ◄ Exit Move Cursor Left Submenu (Back) ◄► Exit Undo Changes Configuration 5.
Handheld Hydrogen Leak Detector 5.9 Model 2240 Zero Sensor The Zero Sensor menu is used to invoke the Zero Operation as described in Section 4.7. 5.10 Verify The Verify menu shows the date of the last field verify and allows the user to invoke the Verify function in Section 7.
Handheld Hydrogen Leak Detector Model 2240 6. Hydrogen Sensing Considerations From any given source, hydrogen gas disperses rapidly and generally upward due to its very low density compared to air. Understanding this behavior allows a more effective search for hydrogen leaks. The hydrogen plume from a leak generally spreads in a roughly conical shape that is easily disturbed by environmental conditions.
Handheld Hydrogen Leak Detector Model 2240 7. Verification Verification is performed to confirm that the MODEL 2240 is operating properly. The recommended verification interval is three months. The MODEL 2240 requires calibration only if it fails verification. It can not be field calibrated and must be returned to Teledyne Analytical Instruments for calibration. An optional NIST traceable certificate is available. Once verification has begun, the only way to stop it prematurely is to cycle the power. 7.
Handheld Hydrogen Leak Detector Model 2240 8. Battery Charging Ensure the unit is powered OFF. Disconnect the coiled cord from the controller. Connect the battery charger to the controller. Using the appropriate A/C plug adapter for the region of use, plug the battery charger into the A/C supply.
Handheld Hydrogen Leak Detector Model 2240 10. Troubleshooting Symptom Possible Cause Sensor Error The probe is disconnected from the controller. Error 88 Error 40 Error 20 Faulty capacitor The PCB temperature is too high. The sensor temperature is incorrect. Action Turn off the instrument and verify that the probe is properly connected to the controller. Turn off the instrument. Turn off the instrument. Let it cool. Turn off the instrument. Charge the battery completely. See Section 8.
Handheld Hydrogen Leak Detector 11. Model 2240 Menu Structure A dashed outline shows the next display if it is on a different page, or to avoid clutter.
Handheld Hydrogen Leak Detector Model 2240 Menu Structure Zero Sensor Continue? ENTER Reset Sensor Continue? No Zero Sensor Not Done Zero Sensor In Progress ENTER No Reset Sensor Not Done Reset Sensor In Progress Zero Sensor Reset Sensor Zero Sensor Done Reset Sensor Done Hydrogen Hydrogen Teledyne Analytical Instruments Page 27 of 30
Handheld Hydrogen Leak Detector Model 2240 Table 1 - Verify Procedure Step Display 1 Verify Sensor User response Press ENTER 2 Verify Sensor Continue? Press ENTER to Verify sensor, L to exit. 3 Verify Sensor In Progress Verify Test begins. Apply 4 0.000%H2 Continue? With the Calibration Cup that accompanies the MODEL 2240, apply hydrogen-free, ultra-zero air to the Probe sensor. The Probe Tip LED will remain Green. Press ENTER. Apply 5 0.000%H2 0% Verify Test starts.
Handheld Hydrogen Leak Detector Apply 11 0.100%H2 Settle Apply 12 0.100%H2 Wait xxxx 13 Apply 0.100%H2 Finding Average Apply 14 2.000%H2 Continue? Model 2240 Checking sensor temperature. Wait for sensor reading to stabilize until xxxx = 0. Measuring sensor response to test gas. Visually verify that 1-2 yellow LED’s are lit up in the probe tip. If not the unit needs factory calibration With the Calibration Cup, apply 2.0% hydrogen to the Probe sensor. The Probe Tip LED will remain Red.
Handheld Hydrogen Leak Detector Model 2240 21 Enter Date: 6.0000 Y Enter the current year (7=2007, 12=2012, etc.) using the ▲ (up arrow) and ▼ (down arrow) keys. 22 Verify Sensor Passed Verify is complete, press any key.
