® INSTALLATION & OPERATING INSTRUCTIONS SECTION 93.
YOUR GNB REPRESENTATIVE SALESPERSON TELEPHONE LOCATION GNB SERVICE ASSISTANCE 1-800-241-4895
INDEX Page Page SECTION 1 1.0 General Information . . . . . . . . . . . . . . . . . . . .1 SECTION 12 12.0 Cell Voltage Variation . . . . . . . . . . . . . . . . . .10 12.2 Cell Voltage Variation–Damp Covers . . . . . .11 12.2 Cell Voltage–Temperature Correction . . . . .11 12.3 Correction Factor . . . . . . . . . . . . . . . . . . . . .11 SECTION 2 2.0 Safety Precautions . . . . . . . . . . . . . . . . . . . . .1 SECTION 3 3.0 Receipt of Shipment . . . . . . . . . . . . . . . . . . .1 3.
D. When preparing electrolyte, always pour acid into water, NEVER water into acid. Failure to follow this precaution will result in excess heat and violent chemical reaction which may cause serious injury to personnel. SECTION 1 1.0 General Information E. If electrolyte comes into contact with skin or clothing, immediately wash with water and neutralize with a solution of baking soda and water. Secure medical treatment.
If such conditions are found, make description notation on delivery receipt before signing. If cell damage is found, request an inspection by the carrier and file a damage claim. Also notify local GNB representative of action taken. Storage beyond the above stated periods can result in sulphated plates which can be detrimental to battery life and performance. The battery should be given its initial charge (see Section 8.
Remove material holding cartons to pallets, exercising care when cutting banding material to prevent injury. If individual cells are to be moved to another location, do not remove carton at this time. Exercise caution if using a two-wheeled hand truck and, to prevent spillage of electrolyte, do not tilt cell more than 25 degrees from vertical. When cells have been brought to the installation sight, remove carton sleeve and top corrugated spacers. 7.
When installing cells on the rack, start at the lower step or tier for stability and safety reasons. On cells using stainless steel bolts, washers and nuts, make sure a washer is placed between the bolt head and connector as well as between the nut and connector with the rolled edge against the connector. Never install washers between the connector and the cell post. (See figure 2A).
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DUST CAPS ELECTROLYTE WITHDRAWAL Figure 3 7.7 Figure 4 Electrolyte Withdrawal Tubes Completing Installation Certain calcium cells are equipped with two electrolyte withdrawal tubes which are installed in the diagonal corners of the cell. These permit the taking of specific gravity readings at a point about one-third from the top of the plates. (See Section 11.1). Refer to Figure 3. Explosion Resistant Vents Certain cell sizes may have been shipped with GNB PreVent™ vent/filling funnels in place.
SECTION 8 8.0 TABLE B Initial Charge Lead-Calcium Types Batteries lose some charge during shipment as well as during the storage period prior to installation. The battery should be installed and given its initial charge as soon after receipt as possible. At the completion of initial charge, record voltage and specific gravity of each cell while still on charge and retain records for future reference per Section 14.0. 8.
TABLE C When the cell voltage reaches 2.33, the charge rate should be reduced to the normal finish charge rate. The finish charge rate is defined as amperes equal in numerical value to 5% of the cell’s 8-hour capacity in ampere hours. For example, if the cell has an 8-hour capacity of 1680 AH, its finish rate is 84 amperes. The charge should be stopped when the specific gravity is ten (.010) points below the normal fully charged value. Recommended Float Voltages Lead-Antimony Types: Nominal 1.215 sp. gr.
D. Equalize to complete a recharge of the battery in a minimum length of time following an emergency discharge. NOTE: Time periods listed in Tables D and E are for cell temperatures from 70°F (21°C) to 90°F (32°C). For temperatures 55°F (13°C) to 69°F (20.5°C) double the number of hours. For temperatures 40°F (4°C) to 54°F (12°C) use four times the number of hours. E. If accurate quarterly records are maintained (See Section 14.
11.1 Hydrometer Readings When taking a hydrometer reading, the base of the hydrometer syringe should be pressed firmly against the tube opening to prevent back splash of electrolyte. Fill and empty the hydrometer at least once in each cell before reading. This will give a more accurate reading of the average electrolyte density. Specific gravity is used in determining a cell’s state of charge.
NORMAL VOLTAGE RANGE Average Float Voltage Type A slight amount of electrolyte may be lost each time a specific gravity reading is taken, even though it is recommended that all electrolyte in the hydrometer be returned to the cell after reading. Therefore it is suggested that the pilot cell be changed to another cell annually to provide a representative specific gravity indicator for the battery. Variation Lead-Antimony Nominal 1.215 sp. gr. Nominal 1.250 sp. gr. 2.15 to 2.17 V.P.C. 2.19 to 2.23 V.P.C.
should be taken after battery has been returned to normal float for one week. These will serve as an updated basis for comparison with future readings. F. SECTION 16 16.0 Tap Connections It is not recommended that tap connections be used on a battery, as possible unbalance between groups of cells may result. This can cause overcharging of the untapped group of cells and undercharging of the tapped cells supplying the load. This condition can cause unsatisfactory operation and reduced battery life.
cloth. Any surface that is damp with electrolyte should be neutralized with a baking soda—water solution (1 lb. of baking soda per gallon of water). DO NOT USE AMMONIA, SODIUM HYDROXIDE OR ANY STRONG ALKALIES. Resistance measurements or microhm measurements should be taken at the time of the installation and annually thereafter. Initial measurements at installation become the benchmark values and should be recorded for future monitoring of electrical integrity.
Tests reveal that a reduction in the original torque value of 30% still provides a functional electrical connection if there is no corrosion between contact surfaces. (iv) Four Post, Two Connector Staggered Hook-Ups. (Figure 9). Cells with four post staggered connector hook-ups require two step measurement as described above in (iii). In addition, the probe point locations for points A and D (See Figure 9) must be centered as described above in (i).
GNB Industrial Power A Division of Exide Technologies GB-1000F 15
STATIONARY BATTERY PLASTIC CELL NUMERAL APPLICATION To insure proper adhesion of the pressure sensitive plastic cell numerals, and polarity markings supplied with your GNB Stationary Battery, the following procedure should be followed: 4. Numerals are shipped mounted on a plastic backing strip. They are easily removed by peeling back the plastic strip. Keep finger contact with adhesive backing on numeral to a minimum. 1.
GNB Industrial Power – The Industry Leader. ® GNB Industrial Power, a division of Exide Technologies, is a global leader in network power applications including communication/data networks, UPS systems for computers and control systems, electrical power generation and distribution systems, as well as a wide range of other industrial standby power applications.