Interface Meter Operating Instructions
Contents
1. non conductive liquid eg product An intermittent tone and light indicates a conductive liquid eg water 5 For floating product LNAPL take the air product interface measurement on the way into the liquid and the water product interface on the way up When passing through product into water some product may adhere to the probe sensors due to surface tension Therefore when water is detected below product the probe should be raised and lowered rapidly in a short vertical motion to remove any product that may have been carried down with the probe 6 The water product interface should then be measured as the probe is raised very slowly back up Once the interface is detected the probe can be raised and lowered in small increments to precisely determine the interface 7 Repeat measurements to confirm water product interface 8 To determine the thickness of product subtract the water product interface from the product air interface 9 To determine if there is any sinking product DNAPL in the well continue lowering the probe slowly If steady signals activate determine the top of the sinking layer by reading directly from the tape Continue lowering the probe slowly until the tape slackens when the well bottom is reached Read the level directly from the tape and subtract one from the other to determine thickness 10 Upon completion of readings clean the tape and probe as described overleaf Cleaning and Maintenanc2. Solinst Operating Principal The Solinst Model 122 Interface Meter has a narrow 5 8 16 mm diameter probe It is CSA approved for use in hazardous locations Class 1 Groups C amp D It has an infra red circuit which detects the presence of a liquid A conductivity circuit differentiates between conductive liquid water and non conductive liquid LNAPL or DNAPL product Equipment Check Before beginning any measurements check the electronics and battery condition by pushing the Start button A brief tone and red light indicate that the meter is functional A flashing green light indicates the meter is on It will automatically turn off after 10 minutes to preserve battery life Using the Tape Guide 1 The tape guide has been designed to improve accuracy when reading interface measurements to prevent tape being cut by well casing and to allow the tape and probe to hang straight from the side of the well 2 If interface measurements are being taken in a 2 dia well then simply fit the small end of the tape guide onto the edge of the well casing we The small end must be inserted if the Interface Meter is to be suspended from the tape guide 4 Insert the leg of the Interface Meter into the hole on the Tape Guide 5 Once inserted rest the Interface Meter on the side of the well casing Tape Guide Measurement point Insert Interface Meter leg through hole Fit onto well casing lt Tape Guide
3. ck frame so the tape does not unwind Push button could be faulty please contact Solinst Instrument turns on but immediately shuts off or instrument does not shut off except after 10 min automatic shutdown 4 Check batteries replace if necessary Dirt or debris may be causing the on off buttons to stick Use short blast of air to try to free up buttons Check 12 pin connector inside reel for loose wire pin Access by removing three screws on faceplate Ensure instrument is laying on its back frame so the tape does not unwind Push button could be faulty please contact Solinst Instrument does not detect liquid Check batteries replace if necessary Clean probe tip follow Cleaning Maintenance Instructions Reel or probe circuitry could be damaged please contact Solinst When instrument is turned on it immediately sounds product tone or water tone 1 Probe optical sensor may be dirty Clean according to Cleaning and Maintenance instructions 2 Possible weak batteries replace both 3 Water has leaked into the probe Remove three small screws and slide the probe down from the tape portion remember polarity of the green and white wire Dry out probe wipe and inspect o ring replace if necessary and or lubricate with silicon grease Replace probe remembering polarity Check 12 pin connector inside reel for loose wire pin Access by removing three screws on faceplate Ensure instrument i
4. e After each use the tape should be wiped clean and carefully rewound onto the reel The probe should be cleaned as follows e Wash probe thoroughly with a non abrasive mild detergent DO NOT USE ANY SOLVENTS Use a soft cloth around the pins on the end of the probe to remove all product For the P2 Probe use the brush provided through side and base holes to remove all product from inner part of the probe USE LUKE WARM NOT HOT WATER DAMAGE TO PROBE MAY RESULT e Rinse probe thoroughly with distilled water wipe dry e Return the probe to the holder Other suitable cleaning method e Steam clean tape only Battery Replacement Push battery drawer in and up and then release The battery drawer should eject slightly allowing it to be pulled out Replace the two 9V batteries with alkaline batteries Other General Tips 1 Probe should be cleaned after each use Always use grounding cable 2 3 Do not drop probe damage to probe tip may result 4 If battery is weak the start tone will not sound and flashing green light will be off Replace both batteries an Before storage make sure the meter is turned off Troubleshooting Instruments will not turn on 4 Replace batteries Check the polarity of the batteries are correct in the battery drawers Check 12 pin connector inside reel for loose wire pin Access by removing three screws on faceplate Ensure instrument is laying on its ba
5. prevents tape from scraping the top edge of well casing has Interface Meter anchored to the well casing with the tape guide for stable operation Notes When using the tape guide the measuring point is offset from the top of casing To adjust your measurements simply subtract the amount indicated on the front of the tape guide eg 6 cm or 2 10 ft _ High quality medium density polyethylene tape hangs straight in the well for accurate interface measurements Interface Meter Operating Instructions Model 122 Field Measurements IMPORTANT 1 To meet safety requirements and to protect the electronics from damage always ground the meter by attaching the grounding clip to the well casing or to a suitable ground rod 2 Push the Start button A brief tone and light indicate that the meter is functional and the flashing green light indicates that the meter is on The meter automatically turns off after 10 minutes Press the Start button as necessary during operation to turn the meter back on 3 Place the slotted part of the tape guide onto the edge of the well casing Lay the Interface Meter tape into the groove on the top of the tape guide Measurements will be read at the apex of the V notch on the tape guide Note When using the tape guide remember to subtract the compensation factor stamped onto the side of the guide from each measurement 4 Asteady tone and light indicates a
6. s laying on its back frame so the tape does not unwind Reel or probe circuitry could be damaged please contact Solinst Chirping or Warbling sound being emitted 1 Clean probe 2 Possible water in probe see troubleshooting under When instrument turned on instrument emits product or water tone Reel or probe circuitry could be damaged please contact Solinst Instrument detects product as water 1 Thoroughly dry the stainless steel shroud covering the probe tip 2 Product may have degraded if it has a detectable level of conductivity it will read water This can be checked by placing the probe in pure phase product a steady tone amp light should be observed Printed in Canada For further information contact Solinst Canada Ltd e ce 5 Fax 1 905 873 1992 800 516 9081 Tel 1 905 873 2255 800 661 2023 Pade 35 Todd Road Georgetown Ontario Canada L7G 4R8 O Ins E mail instruments solinst com Web http www solinst com
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