Instructio n Manual fo r FORMALDEHYDE GAS DETECTOR MO DEL F P-3 0/F P-4 0 This instrument is sold and serviced by RKI Instruments, Union City, CA For questions, parts, or service please contact RKI at (800) 754-5165. Please read and understand this instruction manual before operating this instrument.
Table of Contents 1.1 Start-up Operation 2 1.2 Installation of the Detection TAB 3 1.3 Detection Method 4 1.4 High Density Gas Detection 4 1.5 Memory of Stored Detection Results 4 1.6 Battery Voltage Check 7 1.7 Preliminary Sample-Draw 7 1.8 Purge Cycle 8 1.9 Completion of Detection 8 2.1 Storage of Detection TAB 9 2.2 Handling of Detection TAB 9 4.1 Battery Replacement 12 4.2 Daily Check / Regular Check 12 4.3 Replacement of parts 12 4.
1 OPERATION 1.1 Start-Up Operation Press ON/OFF switch for 2 seconds to turn instrument on and start warm-up and self-diagnosis.
1.2 Installation of Detection Tab The detection TAB comes packaged in a sealed foil wrapper. Remove it from the wrapper. The detection surface of the TAB is protected by a plastic cover that fits over the TAB. Remove this cover. The detection TAB must only be handled by its edges or backside. Do not touch the indented center section of the TAB. 1. Open the detection TAB cover. Lift up this way. Detection TAB cover Instrument (Side view) 2.
1.3 Detection Method Gas detection • Detection waiting condition The instrument waits in this mode until the detection TAB is installed. • Installation of the detection TAB Install the detection TAB. • Selection of the detection range Select the detection range by pressing up/down keys. • Detection starts Press START switch to start the pump and start the detection cycle. Cycle is either 15 minutes or 30 minutes (as selected).
NOTE Only one type of detection TAB is used in the FP-30 & FP-40, but the TAB may be used for three different detection ranges. For the FP-30, select the TAB No. according to the desired detection range. The FP-40 can only be used for one detection range. Detection range 0 - 0.4 ppm (FP-30) 0 – 1.0 ppm (FP-30 0 - 0.6 ppm (FP-40) Measuring time 30 min. 15 min. 3 min TAB No. 008 009 010 • Do not remove tab during detection.
1.4 High Density Gas Detection If high-density gas is detected, the instrument and any sample hose must be flushed out with fresh air before installing a new detection tablet. If a new detection tab is installed immediately without flushing the instrument (and sample hose) out with fresh air, the wrong answer will occur since detection will start immediately when the new tab in installed. (SEE PRELIMINARY SAMPLE DRAW, STEP 1.7) 1.5 Memory of Stored Gas Detection Results 1.5.
1.5.2 Deleting the Memory of Stored Detection Results To delete the memory: While in the data display screen described above in 1.5.1, press the START + simultaneously. The message to delete the stored detection results is displayed. DATA switches Then, when START switch is pressed, all the stored detection results are deleted. If DATA switch is pressed instead, the instrument will return to the previous condition without deleting the data. DELETE START Display every 1 sec.
Preliminary sample drawing method With detection TAB removed, press START switch. Preliminary sample drawing is made for about 5 sec to flush out the previous sample, and the following message is displayed until completion. Previous sample drawing Preliminary sample drawing must be done in fresh air , or in the air of the room you will check next. 1.
2 ABOUT THE DETECTION TAB The Gas Detection Tablet is a unique detection method developed by our company. The tablet contains a paper impregnated with special chemicals that will darken if exposed to a specific gas. Proper storage of the tablet is critical. If tablet is not stored correctly, the detection results will not be accurate. 2.1 Storage of Detection TAB Detection TAB must be used within the storage period indicated on the package.
Always use a new detection TAB for readings For each gas test, be sure to use new detection TAB. TABS are intended for one time use only, and should not be opened until immediately before you intend to use them. If an already used TAB is attempted to be used, an error message “TAB” may be shown. But, even if the error message is not displayed, the detection result will not be correct if an old TAB is used. Use TAB immediately after removing from package.
3 SELF DIAGNOSIS FUNCTION A Self-diagnosis function is provided with this instrument. Each self-diagnosis mode has a unique alarm, display, and buzzer sound.
4 MAINTENANCE 4.1 Battery Replacement When replacing batteries, replace all 4 batteries at the same time. 4.2 • Turn power off. • Remove the carrying case from instrument. • Press the battery cover slightly and slide it off. • Remove all 4 batteries and install the new batteries. Take care to use correct polarity and battery type. • After replacing batteries, replace cover and carrying case. Daily Check/Regular Check Daily check • Checking switches, display and body for any physical damage.
5 TROUBLE SHOOTING This trouble-shooting guide cannot cover all possible malfunctions. The most likely problems and causes are listed below. Symptom (Message) Cause Treatment Low battery (REPLACE BATTERY) Battery voltage is low. Replace Batteries Sensor failure (FAIL) Turn on power again and repeat Excessive shock such as the sensor check. If it does not dropping, or extensive use recover, return to factory for for a long time. repair.
6 SPECIFICATIONS 6.1 Specifications ______ Model FP-30, FP-40 Detection principle Photoelectric photometry method Display method Digital display by LCD. Sampling method Sample-drawing by pump Memory function 99 points logged. (Automatic recording after detection) Ambient temp -10 to +40 C, 90% RH (Non-condensing) Power source AA size Dry battery, 4 ea. Approx. 12 hours (with Alkaline battery, no alarm or illumination and at 20 C NOT explosion proof or intrinsically safe.
6.4 7 DETECTION PRINCIPLE The Gas detection TAB test paper is treated with special chemicals and an illuminating agent. When gas is blown onto the TAB paper face, the paper emits illumination by chemical reaction, and this causes the paper to change color. The amount of color change is determined by the level of formaldehyde exposure, and the time of exposure.
