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KEITHLEY 487 PICO AMMETER for Sale


SDI fabsurplus.com is pleased to announce the availability of the following listed used KEITHLEY 487 PICO AMMETER .
Please click on the "Send More Details" button at the end of the 487 description, if you'd like to get more details, photos and specifications of this PICO AMMETER , and your request for this equipment will be forwarded to our SDI sales representatives automatically.
This KEITHLEY 487 PICO AMMETER is available for immediate sale.
Crating, refurbishment and delivery for this equipment can be quoted on request.


KEITHLEY 487 Equipment Details

SDI ID: 76802
Manufacturer: KEITHLEY
Model: 487
Description: PICO AMMETER
Version: Electronics Test and Measurement
Vintage: Inquire
Quantity: 1
Sales Condition: as is where is
Lead Time: immediately
Sales Price (each): 1,999 USD
Comments:
Current condition: De-installed, warehoused, crated.
Location: Avezzano, (AQ) 67051 Italy
The Model 487 is designed for measurement of low currents and very high resistances. This instrument incorporates all the capabilities of the 486, and adds a programmable ±500V source. This combination of picoammeter and voltage source provides a powerful high resistance meter and fast picoammeter in one instrument.
The 487 makes current measurements from 10fA to 2mA. Two voltage source ranges are available: a 500V range with 10mV resolution and a 50V range with 1mV resolution. A PRESET button allows the user to toggle between two separate source values.
The 487 sources up to 500V, measures the current with 10fA sensitivity, and then instantly calculates the resistance value, from 500m to 5  1016. The unit displays either current or resistance. Reading inter- vals from 10ms to 1000s can be programmed, simplifying tests that require a predetermined “soak” time.
Two displays, one for current readings and one for voltage sourcing, permit the voltage setting and the measured current to be viewed effective test instruments for performing such tasks as resis- tivity, I-V measurements, component leakage, and insulation resistance. A common test procedure, writ- ten by the American Society of Testing and Materials, D257: D-C RESISTANCE OR CONDUCTANCE OF INSULATING MATERIALS, is easily performed with the 487 or the 6517A.

AMMETER



ANALOG OUTPUT



RANGE



RESOLUTION

ACCURACY (1 Year)* 18°–28°C

±(%rdg+offset)

Rise Time (10%–90%) Analog Filter

OFF ON

2 nA

10 fA

0.3 + 500 fA

12 ms 70 ms

20 nA

100 fA

0.2 + 3 pA

4 ms 17 ms

200 nA

1 pA

0.15 + 20 pA

800 µs 4 ms

2 µA

10 pA

0.15 + 200 pA

380 µs 2 ms

20

µA

100 pA

0.1

+ 2 nA

160 µs

370 µs

200

µA

1 nA

0.1

+ 20 nA

160 µs

370 µs

2

mA

10 nA

0.1

+ 200 nA

160 µs

370 µs

* When properly zeroed.

MAXIMUM OVERLOAD: 350V peak on nA ranges and 2µA range; 50V peak on 20µA, 200µA, and 2mA ranges. Higher voltage sources must be current limited at 3mA.

INPUT VOLTAGE BURDEN: <200µV (18°–28°C) for inputs <100µA; <2mV for inputs 100µA; 20µV/°C tempera- ture coefficient.

TEMPERATURE COEFFICIENT (0°–18°C & 28°–50°C): ±(0.15 applicable accuracy specification)/ °C.

NMRR: >60dB at 50Hz (LINE 50Hz integration) or 60Hz (LINE 60Hz integration).

ANALOG OUTPUT:

Range: ±2V for full range input (non-inverting).

Accuracy: ±(2.5% + 3mV); resistive loads >2k; 18°–28°C.

Impedance: <100, DC–2kHz.

RANGING: Automatic or manual.

AUTORANGING TIME: <200ms to final range (analog filter OFF).


INTEGRATION


EXTERNAL

CONTINUOUS INTO

TRIGGERED

INTO

VIA

IEEE-488

SETTING

RESOLUTION

DATA STORE

DATA STORE

BUS**

FAST

412-Digit

100

180

16

LINE 60Hz

512-Digit

40

44

14

LINE 50Hz

512-Digit

33

38

12


VOLTAGE SOURCE (487 only):

RANGE STEP (1 Year) NOISE COEFFICIENT

(maximum SIZE 18°–28°C (p-p)*** 0°–18°C & value) (typical) ±(%setting+offset) 0.1–10Hz 28°–50°C

±505.00 V 10 mV 0.15 + 40 mV <1.5 mV 80 ppm + 2 mV/°C

±50.500 V 1 mV 0.1 + 4 mV <150 µV 50 ppm + 200µV/°C

*** With LO terminal connected to chassis.

SELECTABLE CURRENT LIMIT: 2.5mA ±0.5mA or 25µA ±5µA.

WIDEBAND NOISE: <30mV p-p 0.1Hz to 20MHz.

TIME STABILITY: ±(0.003% + 1mV) over 24 hours at constant temperature.

OUTPUT RESISTANCE: <2.5.

V/I OHMS (487 only)

  Used with voltage source; resistance calculated from voltage setting and measured current. V/I OHMS accuracy equals voltage source accuracy plus ammeter accuracy. Typical accuracy better than 0.6% for readings between 1k and 1T.






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Any offer by you to purchase the equipment described on this page shall be subject to our standard terms and conditions of sale.

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