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Determines the condition of lead-acid and nickel-cadmium cells up to 7000 Ah. An advanced feature set has been developed that includes Pass/Warning/Fail calculations based on a user-entered baseline value, advanced printing functions and more. The instrument works by applying a test signal across the battery string while on-line, then calculates impedance based on simultaneous measurements of current and resulting voltage drop of each cell/jar. It also measures dc voltage and interconnection (strap) resistance to help determine the overall condition of the entire battery string's electrical path from terminal plate to terminal plate.
In addition, it measures ac ripple current which, if too high and over an extended period of time, can damage the battery by heating it (an increase of battery temperature by 18°F/10°C will halve the life of lead-acid batteries). Battery manufacturers generally recommend a limit of 5A of ac ripple current for every 100 Ah of battery capacity. The first measurement that the instruments take is ac ripple current which should be trended.
The receiver stores the readings in its internal memory. These measurements, along with other maintenance data such as ambient and pilot cell temperatures and ac ripple current, assist in determining the overall condition of battery systems.
Unlike load cycle testing that involves substantial downtime and repeated discharges, using this instrument requires no battery discharge, nor does it stress the battery in any way compared to other techniques. With a test time of less than 15 seconds for each cell and intercell connector, one person can easily, quickly, and precisely measure internal cell impedance, dc terminal voltage and intercell connection resistance without taking the battery system off line and evaluate charger condition also.
Features
Receiver
The battery-operated receiver incorporates the potential leads, clamp-on current sensor, and data storage capabilities. It stores more than 2000 sets of data (cell impedance, cell voltage and interconnecting strap resistance, date and time stamps) in up to 300 tests. It also allows for printing the active test for easy review and retest. Selective printing of any test and deleting oldest tests are now included features to maintain in memory the most critical tests. At any time while performing a test, the operator can review the current test results by using arrow keys and scrolling back through the active test screen.
One additional feature of the receiver is that if you are called away while in the middle of the test, simply shut down the instrument and it will remember where you left off in the test.
The clamp-on current sensor is connected to the receiver during testing and clamped around a convenient intertier or intercell connection within the loop created by the transmitter's current source leads and the battery string. If the intercell or intertier connection consists of more cables than the diameter of the clamp-on current sensor can encompass, the receiver has a split-strap function.
Transmitter
The transmitter provides the capacitively coupled ac test signal to avoid transients on the dc buss and applies it to the cells under test via the source leads. The BITE2 transmitter has an LCD and built-in receiver charger. Data, measured and stored in the receiver can be exported to a PC.
Test Procedure
The BITE2 works by applying a capacitively coupled ac test signal across the battery string while on-line. The receiver and potential probe are placed at the cell terminals to measure the signal and resulting voltage drop for each cell/jar. During each measurement, impedance is calculated following Ohm's Law, displayed on the LCD and stored. The instruments also measure, display and record dc voltage and interconnection (strap) resistance to help determine the overall condition of the entire battery string's electrical path from terminal plate to terminal plate. The also measure ac ripple current, a charger parameter.The receiver stores the readings in its internal memory. These measurements, along with other maintenance data such as ambient and pilot cell temperatures and ac ripple current, assist in determining the overall condition of battery systems.
Interpretation of Readings
Data produced by the BITE2 can be interpreted in several modes: instantaneous, short-term and long-term time frames. PowerDB makes data analysis fast and easy.
Instantaneous Interpretation
The operator can enter a baseline value from either the impedance measurements obtained at commissioning. The percent changes from baseline for warning and fail levels are entered, but 20% and 40% are the default settings. The LCD on the receiver will display the status of the cell for a few seconds before proceeding to the next cell. The status of each cell/jar will be printed on the Battery Analysis Report.
Short-Term Interpretation
Impedance readings for individual cells can be used in the short term to compare with the average impedance readings for the entire battery string. Individual cell values with deviations of more than ±15% for flooded lead-acid, ±35% for VRLA, and 50% for NiCd cells from the battery string average typically indicate a problem with that cell.
Long-Term Interpretation
Impedance readings for the entire battery can be used in the long term to determine replacement criteria. Battery cell impedance values should be recorded and compared to previous readings to determine the position of the cell on the curve of impedance versus cell life. Based on experience, a variation of ±20% from baseline for flooded lead-acid, ±40% for VRLA and 50% for NiCd cells indicate significant change in the electrical path to warrant serious evaluation of the condition of the battery system.
Applications
| Maximum Total Voltage at Current Source Leads | 275 V dc (larger battery systems can be sectioned to accommodate this specification) |
| Maximum Battery String Test Voltage | 275 V dc at source lead terminals (section the battery if >275 Vdc) |
| Voltage Range and Resolution | 1 to 2.5 V DC, 1 mV resolution 2.5 to 25 V DC, 10 mV resolution |
| Impedance Range and Resolution | 0 to 1 m?, 1 ?? resolution 1 to 10 m?, 10 ?? resolution 10 to 100 m?, 0.1 m? resolution |
| Settling Time per Reading | 3 seconds maximum |
| Ripple Current Range | 100 mA to 15 A ± CT |
| Receiver | |
| Accuracy | AC impedance 5% +1 LSD DC voltage ±(1.5% of rdg +1 LSD) |
| Precision | Better than 0.5% one sigma |
| Transmitter | |
| Supply Voltage | 100 to 130 V, 50/60 Hz, 200 VA max 210 to 250 V, 50/60 Hz, 200 VA max |
| Source Output Current | 10 A nominal, 50/60 Hz operation |
| General Specifications | |
| Display | LCD, 2 x 16 characters |
| Power Supply | 4.8 V dc, 800 mAh, quick charge NiMH battery pack, 5 hours continuous |
| Temperature | Operating: 32 to 105°F (0 to 40°C) Storage: -5 to 130°F (-20 to 55°C) Humidity: 20 to 90% RH, non-condensing |
| Standards | Conforms to the EMC Directive 2004/108/EC and the LVD Directive 2006/95/EC |
| Dimensions | Transmitter: 6.5 x 14 x 10.6" (16.5 x 35.6 x 27 cm) Receiver: 7.25 x 11.25 x 2" (18 x 29 x 5 cm) |
| Weight | Transmitter: 17 lbs (7.7 kg) Receiver: 1.6 lb (0.7 kg) |
| Maximum Total Voltage at Current Source Leads | 275 V dc (larger battery systems can be sectioned to accommodate this specification) |
| Maximum Battery String Test Voltage | 275 V dc at source lead terminals (section the battery if >275 Vdc) |
| Voltage Range and Resolution | 1 to 2.5 V DC, 1 mV resolution 2.5 to 25 V DC, 10 mV resolution |
| Impedance Range and Resolution | 0 to 1 m?, 1 ?? resolution 1 to 10 m?, 10 ?? resolution 10 to 100 m?, 0.1 m? resolution |
| Settling Time per Reading | 3 seconds maximum |
| Ripple Current Range | 100 mA to 15 A ± CT |
| Receiver | |
| Accuracy | AC impedance 5% +1 LSD DC voltage ±(1.5% of rdg +1 LSD) |
| Precision | Better than 0.5% one sigma |
| Transmitter | |
| Supply Voltage | 100 to 130 V, 50/60 Hz, 200 VA max 210 to 250 V, 50/60 Hz, 200 VA max |
| Source Output Current | 10 A nominal, 50/60 Hz operation |
| General Specifications | |
| Display | LCD, 2 x 16 characters |
| Power Supply | 4.8 V dc, 800 mAh, quick charge NiMH battery pack, 5 hours continuous |
| Temperature | Operating: 32 to 105°F (0 to 40°C) Storage: -5 to 130°F (-20 to 55°C) Humidity: 20 to 90% RH, non-condensing |
| Standards | Conforms to the EMC Directive 2004/108/EC and the LVD Directive 2006/95/EC |
| Dimensions | Transmitter: 6.5 x 14 x 10.6" (16.5 x 35.6 x 27 cm) Receiver: 7.25 x 11.25 x 2" (18 x 29 x 5 cm) |
| Weight | Transmitter: 17 lbs (7.7 kg) Receiver: 1.6 lb (0.7 kg) |
| Maximum Total Voltage at Current Source Leads | 275 V dc (larger battery systems can be sectioned to accommodate this specification) |
| Maximum Battery String Test Voltage | 275 V dc at source lead terminals (section the battery if >275 Vdc) |
| Voltage Range and Resolution | 1 to 2.5 V DC, 1 mV resolution 2.5 to 25 V DC, 10 mV resolution |
| Impedance Range and Resolution | 0 to 1 m?, 1 ?? resolution 1 to 10 m?, 10 ?? resolution 10 to 100 m?, 0.1 m? resolution |
| Settling Time per Reading | 3 seconds maximum |
| Ripple Current Range | 100 mA to 15 A ± CT |
| Receiver | |
| Accuracy | AC impedance 5% +1 LSD DC voltage ±(1.5% of rdg +1 LSD) |
| Precision | Better than 0.5% one sigma |
| Transmitter | |
| Supply Voltage | 100 to 130 V, 50/60 Hz, 200 VA max 210 to 250 V, 50/60 Hz, 200 VA max |
| Source Output Current | 10 A nominal, 50/60 Hz operation |
| General Specifications | |
| Display | LCD, 2 x 16 characters |
| Power Supply | 4.8 V dc, 800 mAh, quick charge NiMH battery pack, 5 hours continuous |
| Temperature | Operating: 32 to 105°F (0 to 40°C) Storage: -5 to 130°F (-20 to 55°C) Humidity: 20 to 90% RH, non-condensing |
| Standards | Conforms to the EMC Directive 2004/108/EC and the LVD Directive 2006/95/EC |
| Dimensions | Transmitter: 6.5 x 14 x 10.6" (16.5 x 35.6 x 27 cm) Receiver: 7.25 x 11.25 x 2" (18 x 29 x 5 cm) |
| Weight | Transmitter: 17 lbs (7.7 kg) Receiver: 1.6 lb (0.7 kg) |
All returns must be authorized. Items returned prior to authorization will not be accepted. For international customers where applicable, customers must ship any returns to us freight and duty prepaid. Return freight charges for internationsl shippments will be the responsibility of the customer.
Defective new equipment may be returned for warrantyrepair/exchange to us within (5) days of the shipment receipt date. After five (5) days, returns will be handled by direct contact and in accordance with the warranty terms of the item's manufacturer. Items that have malfunctioned due to mishandling, electrical overload, etc., will be subject to repair charge.
Non defective new equipment will be authorized for return within five (5) days of the shipment receipt date if the equipment is still in new, re-sellable condition with the original manual(s), accessories, packing material and carton. We reserve the right to reject returnsin which there is no original packaging, missing accessories, damage or visible signs of usage of the item. A restocking fee of up to 25% of purchase price may apply. Special orders and dangerous goods are non-returnable.
(Do not write anytingon the manufacturer's original package or use as a shipping carton. Include all accessories, manuals and warranties.)
Please, include a copy of the packing list or invoice with a reason for the return. Your return authorization number is valid for thirty (30) days.
We can ship to both US and Canada. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will charge a flat rate shipping for your items.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Not Applicable
| Condition: | NA |
Defective new equipment may be returned for warrantyrepair/exchange to us within (5) days of the shipment receipt date. After five (5) days, returns will be handled by direct contact and in accordance with the warranty terms of the item's manufacturer. Items that have malfunctioned due to mishandling, electrical overload, etc., will be subject to repair charge.
Non defective new equipment will be authorized for return within five (5) days of the shipment receipt date if the equipment is still in new, re-sellable condition with the original manual(s), accessories, packing material and carton. We reserve the right to reject returnsin which there is no original packaging, missing accessories, damage or visible signs of usage of the item. A restocking fee of up to 25% of purchase price may apply. Special orders and dangerous goods are non-returnable.
(Do not write anytingon the manufacturer's original package or use as a shipping carton. Include all accessories, manuals and warranties.)
Please, include a copy of the packing list or invoice with a reason for the return. Your return authorization number is valid for thirty (30) days.
