| A TAPE MEASURE IS ATTACHED TO THE CLIP ON TOP OF THE INSTRUMENT. THE HOSE IS SECURED TO THE NIPPLE AT THE BOTTOM OF THE TUBE. REMOVE INDICATOR PLATE BY GIVING THE CAP A HALF TURN AND CHALK LIGHTLY ALONG IT'S ENTIRE LENGTH. REPLACE THE INDICATOR PLATE. LOWER THE INSTRUMENT OVER THE SIDE AMIDSHIPS IN WAY OF THE DECK LINE, MAKING SURE THE HOSE HANGS CLEAR. SUBMERGE INSTRUMENT A FEW INCHES IN THE WATER AND WAIT 30 SECONDS, ALLOWING WATER TO TRAVEL UP HOSE AND TUBE. NOTE THE TAPE READING AT TOP OF DECK LINE. RAISE INSTRUMENT AND A WATER LEVEL MARK WILL BE OBSERVED ON THE INDICATOR PLATE. TO OBTAIN FREEBOARD, ADD TAPE READING (TOP OF DECK LINE) TO READING REGISTERED ON THE INSTRUMENT. SUBSEQUENT READINGS CAN BE TAKEN, MAKING SURE THE INSTRUMENT IS SUBMERGED DEEPER IN THE WATER THAN THE PREVIOUS MEASUREMENT, IN ORDER FOR THE NEW WATER LEVEL TO REGISTER ON THE CHALKED INDICATOR PLATE. AFTER COMPLETION OF READINGS, WIPE INDICATOR PLATE WITH A CLOTH AND RE-CHALK. INSTRUMENT IS NOW READY FOR USE AT A LATER DATE. A SMALL EYE AT THE LOWER PART OF THE INSTRUMENT IS FOR SECURING OF A LIGHT LINE WHEN READINGS ARE TAKEN IN A TIDEWAY. A LIGHT PULL ON THE LINE TO COUNTERACT THE CURRENT WILL ENABLE VERTICAL READINGS TO BE TAKEN AT THE DECK LINE. |
| Kelman Freeboard Indicator Instructions, How to Use |