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Instruction Manual and
Experiment Guide for
the PASCO scientific
Model ES-9054B

012-03175E

3/93

1987 PASCO scientific

$7.50

ELECTROMETER

scientific

OUTPUT

GND

INPUT

Model ES-9054B ELECTROMETER

PUSH

ZERO

POWER

OFF

FUNCTION

100

B1 B2

ZERO

ADJUST

ZERO

LOCK

Содержание ES-9054B

Страница 1: ... for the PASCO scientific Model ES 9054B 012 03175E 3 93 1987 PASCO scientific 7 50 ELECTROMETER scientific OUTPUT GND INPUT Model ES 9054B ELECTROMETER PUSH TO ZERO POWER OFF ON FUNCTION 3 10 30 100 B1 B2 ZERO ADJUST D C V O L T S ZERO LOCK ...

Страница 2: ......

Страница 3: ... Warranty ii Equipment Return ii Introduction 1 Operation 1 Setup 2 Measuring Charge 3 Measuring Voltage 4 Measuring Current 4 Using a Projection Meter 5 Maintenace 5 Battery Installation 6 MOS FET Replacement 6 Schematic 7 Parts List 8 Technical Support Inside Back Cover ...

Страница 4: ...im proper packing of the equipment for return shipment will not be covered by the warranty Shipping costs for returning the equipment after repair will be paid by PASCO scientific Copyright Warranty andEquipmentReturn Please Feel free to duplicate this manual subject to the copyright restrictions below ii Equipment Return Should the product have to be returned to PASCO scientific for any reason no...

Страница 5: ... two 9 volt batteries and comes complete with the batteries and a shielded test lead Instructions for inserting the batteries are at the end of this manual Introduction The controls on the front panel of the electrometer are explained in Figure 1 Whether you re using the electrometer to measure voltage current or charge the following procedure should be followed each time you turn on the electrome...

Страница 6: ...ry re placement section at the end of this manual Zero the meter a Turn the FUNCTION switch to 3 b Turn the Zero Switch to the ZERO LOCK set ting c Adjust the ZERO ADJUST knob so the meter reads zero volts Turn the Zero Switch to the PUSH TO ZERO set ting Connect the test lead to the INPUT connector of the electrometer Connect the GND post of the electrometer to an earth ground You re now ready to...

Страница 7: ...ductive cylinder around it as a shield Connect the test lead of the electrometer probe to the inside cylin der and connect the ground lead to the outside cylinder see Figure 4 Volt meter V Q Q C Internal Capacitance of Electrometer 30 35 pf without Test Probe approximately 150 pf with Test Probe Q CV V Q Q Q Q Cext C Volt meter Capacitance of object connected to the Electrometer Figure 3 Change in...

Страница 8: ... inside cylinder of the ice pail the Electrometer reading will generally remain relatively unchanged This is because the total capacitance is only negligibly affected by the proof plane This may not always be the case however In general contact measurements can be carried out in much the same way as inductive measurements using the ice pail Touch the object with the test probe record the voltage V...

Страница 9: ...tion Meter reads the same as the Electrometer Turn the ZERO ADJUST knob until the Electrom eter and the Projection Meter read zero Checking Out Your Electrometer Follow the setup instructions on pages 2 3 of this manual to check the batteries and zero the Elec trometer If the batteries are low see Battery In stallation If the meter cannot be zeroed see MOS FET Replacement Calibration Test Set the ...

Страница 10: ...ur screws that fasten the front panel to the case then gently lift the front panel out of the case Turn the POWER switch to ON Set the FUNCTION switch to 3 Flip the Zero Switch to ZERO LOCK With the zero adjust knob midway between its extreme cw and ccw positions adjust the Zero Calibration Po tentiometer to zero the meter Set the Function Switch to 30 zero the meter using the zero adjust knob on ...

Страница 11: ...012 03175E 7 SCHEMATIC Model ES 9054B Electrometer Drawing 956 02859 ...

Страница 12: ...ý 1 8 W 1 MF 124 005 R16 Resistor 2 ký 1 8 W 1 MF 124 006 R17 Resistor 6 98 ký 6 81 ký 1 8 W 1 124 008 R18 Potentiometer 5 ký 10 142 018 R22 Resistor 100 ý 1 4 W 5 113 101 R23 Resistor 100 Mý 1 2 W 20 150 007 C1 3 Capacitor 1 0 µf 10 35 V Axial 220 004 C2 5 Capacitor 0 1 µf 25 V Monolithic 210 018 C4 Capacitor 100 pf 210 014 C6 Capacitor 0 001µf 5 600 V 216 013 C7 Capacitor 24 pf 5 600 V 216 003 Q...

Страница 13: ...co com Contacting Technical Support Before you call the PASCO Technical Support staff it would be helpful to prepare the following information If your problem is with the PASCO apparatus note Title and model number usually listed on the label Approximate age of apparatus A detailed description of the problem sequence of events in case you can t call PASCO right away you won t lose valuable data If...

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