09.
METER NUMBER: DATE TESTED: PREDETERMINED INITIAL PRESSURE LINE:
Press-Ur-Meter— H-2786 The original Press-Ur-Meter for field and laboratory tests, 1/4-cu.-ft. (.007m3) air meter is designed to determine air content, determination of specific gravity and free moisture test of aggregates. Designed to save time, reduce water used, ensure accuracy and maintain sample integrity (sample may be used for slump and compression tests). Features built-in, all-brass H-2785.DB super pump. Furnished with all necessary accessories for calibration and operation and carrying case.
Operation Instructions 1. Fill the base with a sample of fresh concrete, placing it in the base by vibrating or tamping, in much the same manner as the concrete is to be placed on the job. Strike off the base, level full, with the bronze straight edge furnished. Wipe top edge clean. 2. Clamp cover on with petcocks open. 3. Using rubber syringe, inject water through one petcock. Leave petcocks open. 4. With built-in pump, pump up air to “initial pressure” line on gauge. 5.
6. Screw curved tube into the outer end of petcock and by pressing on thumb lever and controlling flow with petcock lever, fill the 5% calibrating vessel level full of water from the base. 7. Release the air at the free petcock. Open the other pet cock and let the water in the curved pipe run back into the base. There is now 5% air in the base. 8. With petcocks open, pump air pressure in exact manner as out lined in paragraph 4. Close petcocks and immediately press the thumb lever.
5 H-2786.2 H-2785.3 H-2785.4 H-2785.5 H-2785.6 H-2785.6A H-2785.7 H-2785.11 H-2785.12 H-2785.13 H-2785.14 H-2785.15 H-2785.16 H-2785.17 H-2785.18A H-2785.18B H-2785.19 H-2785.20 H-2785.21 H-2785.22 H-2785.23 H-2785.24 H-2785.25 H-2785.26 H-2785.27 H-2785.28 H-2785.29 H-2785.41 H-2785.51 H-2785.53 H-2785.DB H-2785.
6 H-2785.DB1 H-2785.DB2 H-2785.DB3 H-2785.DB4 H-2785.DB5 H-2785.DB6 H-2785.DB7 H-2785.DB9 H-2785.DB10 H-2785.DB12 H-2785.51 H-2785.53 Valve nut Valve Valve O-ring Pump tube Pump cap Stem nut Pump piston Pump stem Pump handle Stem cap Pump piston O-ring Pump tube O-ring H-2785.DB1 H-2785.DB2 H-2785.DB4 H-2785.DB3 H-2785.DB6 H-2785.DB7 H-2785.53 H-2785.DB9 H-2785.51 H-2785DB Super Pump Replacement Parts H-2785.DB10 H-2785.DB12 H-2785.
Warranty Humboldt Mfg. Co. warrants its products to be free from defects in material or workmanship. The exclusive remedy for this warranty is Humboldt Mfg. Co., factory replacement of any part or parts of such product, for the warranty of this product please refer to Humboldt Mfg. Co. catalog on Terms and Conditions of Sale. The purchaser is responsible for the transportation charges. Humboldt Mfg. Co.
