Keithley Instruments, Inc.
Cleveland, Ohio 44139
DRN.
CKD.
APP.
DATE
DATE
DATE
PART NUMBER
LTR REVISIONS APP. DATE
FORM 28777A-SBG
BRUNING 40-21 62198-SBG
SPECIFICATIONS
HW 1/17/05
Rev B
Page 2 of 2
SPEC-6220
A Released 29842 SZ 6/08/04
B 40096E Revised SZ 1/17/05
HW 6/11/04
SK 6/11/04
6220 Programmable Current Source
GENERAL SPECIFICATIONS
COMMON MODE VOLTAGE: 250V rms, DC to 60Hz.
COMMON MODE ISOLATION: >10
9
Ω, <2nF.
SOURCE OUTPUT MODES: Fixed DC level, Memory List.
REMOTE INTERFACE:
IEEE-488 and RS-232C.
SCPI (Standard Commands for Programmable Instruments)
DDC (command language compatible with Keithley Model 220)
PASSWORD PROTECTION: 11 characters.
DIGITAL INTERFACE:
Handler Interface: Start of test, end of test, 3 category bits,
+5V@300mA supply.
Digital I/O: 1 trigger input, 4 TTL/Relay Drive outputs
(33V@500mA, diode clamped).
OUTPUT CONNECTIONS:
• Teflon insulated 3-lug triax connector for output.
• Banana Safety Jack for GUARD, OUTPUT LO
• Screw Terminal for CHASSIS
• DB-9 connector for EXTERNAL TRIGGER INPUT,
OUTPUT, and DIGITAL I/O
• Two position Screw Terminal for INTERLOCK
INTERLOCK: Maximum 10Ω external circuit impedance.
POWER SUPPLY: 100V to 240V rms, 50-60Hz.
POWER CONSUMPTION: 120VA.
WARRANTY: 1 Year.
ENVIRONMENT:
For Indoor Use Only: Maximum 2000m above Sea Level.
Operating: 0°-50°C, 70%R.H. up to 35°C. Derate 3% R.H./°C,
35°-50°C.
Storage: -25°C to 65°C, guaranteed by design.
EMC: Conforms to European Union Directive 89/336/EEC, EN
61326-1.
SAFETY: Conforms to European Union Directive 73/23/EEC,
EN61010-1.
VIBRATION: MIL-PRF-28800F Class 3, Random.
WARMUP: 1 hour to rated accuracies.
Passive Cooling: No fan.
DIMENSIONS:
Rack Mounting: 89mm high x 213mm wide x 370mm deep (3.5
in. x 8.375 in. x 14.563 in.).
Bench Configuration (with handle and feet): 104mm high x
238mm wide x 370mm deep (4.125 in. x 9.375 in. x 14.563 in.).
SHIPPING WEIGHT: 4.75kg (10 lbs).
ACCESSORIES SUPPLIED: Model 237-ALG-2 Triaxial Test
Lead (6.6ft), Trigger Link cable, RS-232 (Null Modem) cable,
Interlock terminal block, User’s Manual, CD Manual, LabVIEW
Drivers.
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