HW 1/17/05
Rev B
Page 2 of 2
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. 
 
 
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com