Datasheet

LOW LEVEL MEASURE & SOURCE
A Greater Measure of Confidence
www.keithley.com
1.888.KEITHLEY
(U.S. only)
6514
Programmable Electrometer
GENERAL
OVERRANGE INDICATION: Display reads “OVRFLOW.”
RANGING: Automatic or manual.
CONVERSION TIME: Selectable 0.01PLC to 10PLC.
PROGRAMS: Provide front panel access to IEEE address, choice of engineering units or
scientific notation, and digital calibration.
MAXIMUM INPUT: 250V peak, DC to 60Hz sine wave; 10s per minute maximum on mA ranges.
MAXIMUM COMMON MODE VOLTAGE (DC to 60Hz sine wave): Electrometer, 500V peak.
ISOLATION (Meter COMMON to chassis): Typically 10
10
W in parallel with 500pF.
INPUT CONNECTOR: Three lug triaxial on rear panel.
2V ANALOG OUTPUT: 2V for full range input. Inverting in Amps and Coulombs mode.
Output impedance 10kW .
PREAMP OUTPUT: Provides a guard output for Volts mea sure ments. Can be used as an
inverting output or with external feedback in Amps and Coulombs modes.
DIGITAL INTERFACE:
Handler Interface: Start of test, end of test, 3 category bits.
Digital I/O: 1 Trigger input, 4 outputs with 500mA sink capability.
Connector: 9 pin D subminiature, male pins.
EMC: Conforms with European Union Directive 89/336/EEC EN55011, EN50082-1,
EN61000-3-2, EN61000-3-3, FCC part 15 class B.
SAFETy: Conforms with European Union Directive 73/23/EEC EN61010-1.
GUARD: Switchable voltage and ohm guard available.
TRIGGER LINE: Available, see manual for usage.
READING STORAGE: 2500 readings.
READING RATE:
To internal buffer 1200 readings/second
1
To IEEE-488 bus 500 readings/second
1, 3
To front panel 17 readings/second at 60Hz;
2
15 readings/second at 50Hz.
2
Notes:
1
0.01PLC, digital filters off, front panel off, auto zero off.
2
1.00PLC, digital filters off.
3
Binary transfer mode.
DIGITAL FILTER: Median and averaging (selectable from 2 to 100 readings).
DAMPING: User selectable on Amps function.
ENVIRONMENT:
Operating: 0°–50°C; relative humidity 70% non-condensing, up to 35°C.
Storage: –25° to +65°C.
WARM-UP: 1 hour to rated accuracy (see manual for recommended procedure).
POWER: 90–125V or 210–250V, 50–60Hz, 60VA.
PHySICAL:
Case Dimensions: 90mm high × 214mm wide × 369mm deep (3 ½ in. × 8
3
⁄8 in. × 14
9
⁄16 in.).
Working Dimensions: From front of case to rear including power cord and IEEE-488 con-
nector: 15.5 inches.
Net Weight: <4.6kg (<10.1 lbs).
Shipping Weight: <9.5kg (<21 lbs).
IEEE-488 BUS IMPLEMENTATION
MULTILINE COMMANDS: DCL, LLO, SDC, GET, GTL, UNT, UNL, SPE, SPD.
IMPLEMENTATION: SCPI (IEEE-488.2, SCPI-1996.0); DDC (IEEE-488.1).
UNILINE COMMANDS: IFC, REN, EOI, SRQ, ATN.
INTERFACE FUNCTIONS: SH1, AH1, T5, TE0, L4, LE0, SR1, RL1, PP0, DC1, DT1, C0, E1.
PROGRAMMABLE PARAMETERS: Function, Range, Zero Check, Zero Correct, EOI (DDC mode
only), Trigger, Terminator (DDC mode only), Data Storage 2500 Storage, Calibration (SCPI
mode only), Display Format, SRQ, REL, Output Format, Guard, V-offset Cal, I-offset Cal.
ADDRESS MODES: TALK ONLY and ADDRESSABLE.
LANGUAGE EMULATION: 6512, 617, 617-HIQ emulation via DDC mode.
TRIGGER TO READING DONE: 150ms typical, with external trigger.
RS-232 IMPLEMENTATION:
Supports: SCPI 1996.0.
Baud Rates: 300, 600, 1200, 2400, 4800, 9600, 19.2k, 38.4k, 57.6k.
Protocols: Xon/Xoff, 7 or 8 bit ASCII, parity-odd/even/none.
Connector: DB-9 TXD/RXD/GND.
COULOMBS Accuracy Temperature
(1 Year)
1, 2
Coefficient
6 ½ -Digit 18°–28°C 0°–18°C & 28°–50°C
Range Resolution ±(%rdg+counts) ±(%rdg+counts)/°C
20 nC 10 fC 0.4 + 50 0.04 + 10
200 nC 100 fC 0.4 + 50 0.04 + 10
2 µC 1 pC 1 + 50 0.05 + 10
20 µC 10 pC 1 + 50 0.05 + 10
Notes:
1. Charge acquisition time must be <1000s, derate 2% for each additional 10,000s.
2. When properly zeroed, 6½-digit. Rate: Slow (100ms integration time).
INPUT BIAS CURRENT: <4fA at T
CAL
. Temperature coefficient = 0.5fA/°C.
Model 6514 rear panel
Model 6514 specifications Model 6514 specifications