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> Fluke isolation amp amplifier A88 voltage voltmeter
Fluke isolation amp amplifier A88 voltage voltmeter
FLUKE MODEL A88 ISOLATION AMPLIFIER IA A SOLID STATE DC AMPLIFIER . HIGH ISOLATION OF THE INPUT FROM GROUND AND HIGH ISOLATION OF THE INPUT FROM OUTPUT. USE AS A FLOATING NULL AMPLIFIER, TRANSDUCER AMPLIFIER, THERMOCOUPLE AMPLIFIER, BRIDGE OUTPUT AMPLIFIER.
INPUT SIGNAL IS COUPLED TO THE INSTRUMENT CIRCUITRY THROUGH A UNIQUE MAGNETIC FIELD MAKING POSSIBLE THE HIGH INPUT ISOLATION.
GAIN: 1 VOLT OUTPUT PER MICROAMPERE INPUT
INPUT CURRENT RANGE: 0 TO +-2 MICROAMPERES
INPUT VOLTAGE RANGE: 0 TO +-2 MILIVOLTS NOMINAL
INPUT RESISTANCE: 950 (+-5%) OHMS
OUTPUT VOLTAGE RANGE 0 TO +-2 VOLTS, OPEN CIRCUIT
OUTPUT RESISTANCE: 1000 (+-5%) OHMS
MAXIMUM OUTPUT CURRENT: 1 MILIAMPERE
LINEARITY: BETTER THAN 0.4% OF FULL OUTPUT
TEMPERATURE COEFFICIENT OF GAIN: LESS THAN 0.05% / *C
INPUT ISOLATION FROM CHASSIS: GREATER THAN 5 X 10/11 OHMS AT 25*C (77*F) AND 60% RELATIVE HUMIDITY: 1100 VOLTS MAXIMUM DC POTENTIAL BETWEEN INPUT AND CHASSIS.
NOISE: LESS THAN 1.5 NANOAMPERES RMS ( 5 NANOAMPERES PEAK TO PEAK ) AT THE INPUT.
DRIFT WITH TIME: LESS THAN 12 NANOAMPERES PER WEEK REFERRED TO THE INPUT.
POWER SUPPLY REQUIREMENTS: 11.7 TO 14 VOLTS NOMINAL, 10 MILIAMPERES, WITH LESS THAN 10 MILIVOLTS RMS RIPPLE AND LESS THAN 150 OHMS SOURCE RESISTANCE.
DRIFT WITH TEMPERATURE: LESS THAN 0.4 NANOAMPERES PER DEGREE CENTIGRADE.
RESPONCE: SMALL SIGNAL BANDWIDTH - 0 TO 2.7 CPS ( 3db DOWN). SPEED OF RESPONSE - LESS THAN 0.2 SECONDS, 0 TO 90% OF FULL RANGE OUTPUT.
AC NORMAL MODE REJECTION: UP TO 700 NANOAMPERES RMS PRODUCES NO DISCERNIBLE OUTPUT SIGNAL FROM 50 CPS TO 500 CPS.
DC COMMON MODE REJECTION: UP TO 1100 VOLTS PRODUCES DO DISCERNIBLE OUTPUT SIGNAL.
AC COMMON MODE REJECTION: UP TO 3 VOLTS RMS PRODUCES NO DISCERNIBLE OUTPUT SIGNAL FROM 50 CPS TO 500 CPS.
OVERLOAD: AT LEAST 6 MILIAMPERES WITHOUT DAMAGE.
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