gs yuasa GYTII7 Manuel D'utilisation page 3

English
Overview
The GS Yuasa GYT117 conductance tester provides a simple
method to screen the state-of-health for Valve Regulated Lead
Acid (VRLA) batteries ranging from 0.5Ah to 25Ah.
Specifications
Voltmeter operating range: +6.0 to +19.99 Vdc
Voltage accuracy: +/–50 mV across operating range
Operating temperature: –18 to 50°C (0 to 120°F)
Voltage test limits:
12V high = 13.80V
12V low = 12.00V
6V high = 6.90V
6V low = 6.00V
Siemens range: 20 to 1200S
CAUTION: Attempting to operate the GS Yuasa GYT117
beyond its specified operating range may result in permanent
damage to the tester.
Safety precautions
• Always comply with facility safety standards when performing
battery maintenance.
• Always use extreme caution when working with batteries.
• Safety glasses and other PPE should be worn. Failure to do so,
may result in personal injury.
• To avoid electrical shock, remove personal metal items such as
rings, bracelets, necklaces and watches.
• To determine if the battery can be safely tested, inspect the
battery for a bulging case, leakage, cracks in the case, or other
visible signs of defects or problems.
Conductance and Voltage measurements
Conductance is an indicator of a battery's state of health and its
ability to meet its rated capacity. The GS Yuasa GYT117 measures
and displays the direct current Voltage (Vdc) and conductance for
any 6 or 12 Volt battery rated between 0.5 and 25 Ampere hours
(Ah) of discharge capacity. DC Voltage is a measure of a battery's
electrical potential.
Conductance is a relative measure of a battery's ability to meet its
rated capacity. The GS Yuasa GYT117 displays the conductance
value in Siemens (S). In general, a high relative conductance
measurement is an indication of a good battery, and a low
measurement indicates a battery in degraded condition.
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English
GS Yuasa GYT117 keypad and LEDs
1. UP ARROW - Press for 12 Volt batteries and to scroll to the
reference value (20 to 1,200 Siemens).
2. ENTER - Press to select the reference value, to start the test,
and to display conductance in Siemens (S).
3. DOWN ARROW - Press for 6 Volt batteries and to scroll to the
reference value (20 to 1,200 Siemens).
4. VOLTMETER - Press at any time to read DC Voltage.
The red LEDs above the keypad indicate the test mode and the
numerical value shown on the display (Voltage, Siemens, and
percent of reference). You can use the GS Yuasa GYT117 as a
Voltmeter at any point in the test procedure by pressing the VOLT
button.
Battery test procedure
1. Disconnect the battery from the system.
2. Connect the tester clamps to the battery terminals: red to
positive (+), black to negative (–).
3. Select the voltage by pressing the UP ARROW button for
12 volts or the DOWN ARROW button for 6 volts. Press ENTER.
4. Scroll to the reference value by pressing the UP ARROW or
DOWN ARROW buttons. Press ENTER. (The tester will default
to the last reference value entered).
5. Start the test by pressing ENTER. A series of dots will flash on
the display while the GS Yuasa GYT117 measures conductance
and Voltage, and calculates a percentage of reference.
6. The first value displayed is the percentage of reference.
7. To display the actual conductance value (S), press and hold the
ENTER button.
8. To display Voltage, press the VOLT button.
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