Wahl ST2200, User Manual

Page: 19 / 34

ST2200 Soldering Iron Tester User Manual
Page 19 of 34
7.0 CALIBRATION PROCEDURE
7.1 Purpose
To describe instructions to calibrate Soldering Iron Tester Model ST2200 with
suffixes F or C and -110 or -220.
7.2 Scope
This instruction applies to the above noted models and is to be used by qualified
electronic technicians.
7.3 Responsibility and Authority
The Quality Manager is responsible for the implementation and effectiveness of
this procedure.
7.4 Definitions
N.I.S.T.: National Institute of Standards and Technology
UUT : Unit Under Test
7.5 References
N/A
7.6 Procedure
WARNING: AC Line Voltage is present in the cabinet and on the PC Board when unit is
plugged in to Power Source. Power switch DOES NOT have to be on for Voltage to be
present.
7.7 Equipment Needed
7.7.1
Thermocouple Simulator / D. C. Millivolt Source (referred to as "T/C Sim."
hereafter), such as AOIP Calys5 or Wahl C-65.
7.7.2 AC Milli-volt Generator
7.7.3 DVM with 1.0 milli-volt or less resolution and True RMS capability, such as
Keithley Instruments 177 or equivalent.
7.7.4 Pulse Generator
7.7.5 100
Ù
Decade Resistance Box with .01 ohm resolution.
7.7.6 Test leads for above, (1)banana to banana; (1) banana to alligator clip; T/C
Type K wire with alligator clips; Type K w/ mini male connector.
7.7.7 Fixed resistors for wrist strap test; approximate values of 450Kohm, 5M ohm,
11M ohm.