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Azur Electronics
BATTERIES IN TEST EQUIPMENT
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Batteries In Test Equipment includes all the various batteries used in my test equipment. Mostly these are all standard Alkaline 9V PP3 types used in portable test equipment such as Multi-Meters. These need changing usually on an annual basis.
More specialist rechargeable batteries are used in test equipment usually to power RAM to store settings or calibration data. These need the test equipment powering-up occasionally to charge the batteries.
More specialist rechargeable batteries are used in test equipment usually to power RAM to store settings or calibration data. These need the test equipment powering-up occasionally to charge the batteries.
SPECIALIST BATTERIES
|
Test Equipment |
Battery Voltage |
Battery Type |
Notes |
|
Commodore PC40-III Now SOLD |
3.0V | Dallas DS1287 | Real Time Clock IC |
|
HP 438A Power Meter |
3.0V | HP 1420-0314 | RAM backup |
|
HP 4951C Protocol Analyser Now SOLD |
3.6V | HP 1420-0264 |
RAM data and setups |
| HP 8175A Digital Signal Generator | 2.4V | HP 1420-0251 |
RAM configuration settings |
|
HP 8594E Spectrum Analyser |
3.0V |
Panasonic CR2477 |
RAM backup |
| HP 8657B Signal Generator | 2.8V | HP 1420-0281 |
RAM settings and storage register |
|
HP 8901B Modulation Analyser |
2.8V | HP 1420-0322 |
Non Volatile Memory |
|
LeCroy 9310 Dual 300MHz Oscilloscope |
3.0V |
Maxell ML 2032 T25 |
Real Time Clock |
More detailed information on each specialist battery is provided on the individual test equipment's webpage.
Why did HP use so many different batteries?
Why did HP use so many different batteries?
STANDARD BATTERIES
|
Test Equipment |
Battery Voltage |
Battery Type |
Notes |
| Avometer 2001 | 9V | 6F22 PP3 |
|
| Avo 8 Mk 6 |
1.5V 15V |
LR20 Size D RS 591-821 |
|
|
Cason CA380 Infra-Red Thermometer |
9V | 6F22 PP3 | Fit when required |
|
DBU30 Sound Level Meter |
9V | 6F22 PP3 | Fit when required |
|
Honeytek A6243L Inductance and Capacitance Meter |
9V | 6F22 PP3 | |
|
HP 3478A Multi-Meter Now SOLD |
3.0V | HP 1420-0278 |
RAM calibration constants |
| Megger BM100 | 9V | 6F22 PP3 | |
| Megger BM101 | 9V | 6F22 PP3 | |
| Megger LT7 | 1.5V x 4 | LR6 AA | |
|
RS V10860 Digital Light Meter |
9V | 6F22 PP3 | Fit when required |
|
SkyTronic 600.219 DMM |
9V | 6F22 PP3 |
|
Regular checks on battery condition is a good preventative maintenance measure. I have had test equipment damaged by leaking batteries, see HP 8170A Logic Pattern Generator scrapped because of leaking batteries damaging the PCB.
I put a small sticker on or near the battery with a date code, ie. 08/16 (August 2016) to indicate when the battery was last changed or tested.
I put a small sticker on or near the battery with a date code, ie. 08/16 (August 2016) to indicate when the battery was last changed or tested.