Calibration Procedure - Chroma 19071 User Manual

4.

Calibration Procedure

Before performing this section the HiPot tester must warm up at least for 30 minutes. Take
off the calibration label at the front panel and press the lock switch. After completed the
calibration, please press the lock switch again for opening the hardware data backup
protection circuit to avoid calibration data loss.
The following items are required for calibration.
 Voltage Calibration (See section 4.2)
ACV 5KV Offset (0.05kV)
ACV 5KV Full (4KV)
DCV 6KV Offset (0.05kV)
DCV 6KV Full (4KV)
IRV 1KV Offset (0.05kV)
IRV 1KV Full (1kV)
 Current Calibration (See section 4.3)
ACA 3mA Offset (0.12mA)
ACA 3mA Full (2.4mA)
ACA 20mA Offset (2.4mA)
ACA 20mA Full (12mA)
DCA 3mA Offset (0.12mA)
DCA 3mA Full (2.4mA)
DCA 5mA Offset (2.4mA)
DCA 5mA Full (4.8mA)
 ARCing Calibration (See section 4.4)
AC ARC 20mA (7mA)
DC ARC 5mA (5mA)
 Insulation Resistance Calibration (See section 4.5)
IRR Range1 (1000MΩ)
IRR Range2 (100MΩ)
IRR Range3 (10MΩ)
IRR Range4 (10MΩ)
 Ground Continue Calibration
GC 5Ω Offset (1Ω)
GC 5Ω Full (3Ω)
 LCD Contrast Calibration
CAL. CONTRAST (7)
; AC HiPot Voltage Offset calibration (AC Mode)
; AC HiPot Voltage Full calibration (AC Mode)
; DC HiPot Voltage Offset calibration (DC/IR Mode)
; DC HiPot Voltage Full calibration (DC/IR Mode)
; IR Impedance Voltage Offset calibration (DC/IR Mode)
; IR Impedance Voltage Full calibration (DC/IR Mode)
; AC HiPot current 3mA range Offset calibration (AC Mode)
; AC HiPot current 3mA range Full calibration (AC Mode)
; AC HiPot current 20mA range Offset calibration (AC
Mode)
; AC HiPot current 20mA range Full calibration (AC Mode)
; DC HiPot current 3mA range Offset calibration (DC/IR
Mode)
; DC HiPot current 3mA range Full calibration (DC/IR
Mode)
; DC HiPot current 5mA range Offset calibration (DC/IR
Mode)
; DC HiPot current 5mA range Full calibration (DC/IR
Mode)
; AC Withstanding Voltage ARCing calibration (AC Mode)
; DC Withstanding Voltage ARCing calibration (DC Mode)
; IR Resistor range 1 calibration (IR Mode)
; IR Resistor range 2 calibration (IR Mode)
; IR Resistor range 3 calibration (IR Mode)
; IR Resistor range 4 calibration (IR Mode)
; GC 5Ω offset calibration
; GC 5Ω full calibration
; LCD contrast calibration
Calibration Procedure
4-1