5-22                 Electronic Calibration Modules Reference Guide
Specifications and Characteristics
Typical Pin Depth Values
5-
Table 5-32 4.3-10 Connector Pin Depth Characteristics
Device  Typical Pin Depth 
in Millimeters  
(10
–4
 inches) 
Measurement Uncertainty
a
  
in Millimeters  
(10
–4
 inches) 
Observed Pin Depth Limits 
in Millimeters  
(10
–4
 inches) 
4.3-10 mm ECal Module  
(N4431D)
–0.0000 to –0.1000 
(0.0 to –39.0) 
+0.0041 to –0.0041 
(+1.6 to –1.6)
+0.0041 to –0.1041 
(+1.6 to –40.6)
a. Approximately +2 sigma to –2 sigma of gage uncertainty based on studies performed at the factory using precision digital 
gages according to recommended procedures.
Table 5-33 3.5 mm Connector Pin Depth Characteristics
Device 
Typical Pin Depth
a 
in Millimeters 
(10
–4
 inches) 
Measurement Uncertainty
b
  
in Millimeters  
(10
–4
 inches) 
Observed Pin Depth Limits 
in Millimeters  
(10
–4
 inches) 
3.5 mm ECal Module  
(N755xA)
–0.0000 to –0.1270 
(–0.0 to –50.0) 
+0.0041 to –0.0041 
(+1.6 to –1.6)
+0.0041 to –0.1311 
(+1.6 to –51.6)
3.5 mm ECal Module  
(N4431D, N4433D)
–0.0254 to –0.0508 
(–10.0 to –20.0) 
+0.0041 to –0.0041 
(+1.6 to –1.6)
–0.0213 to –0.0549 
(–8.4 to –21.6)
3.5 mm ECal Module 
(N4691D)
–0.0025 to –0.0152 
(–1.0 to –6.0) 
+0.0041 to –0.0041 
(+1.6 to –1.6)
+0.0016 to –0.0193 
(+0.6 to –7.6)
3.5 mm Adapter  0 to –0.0254 
(0 to –10)
+0.0041 to –0.0041 
(+1.6 to –1.6)
+0.0041 to –0.0295 
(+1.6 to –11.6)
a. On N755xA ECals, the 3.5 mm connector is not a precision contact per IEEE precision connector standards.
b. Approximately +2 sigma to –2 sigma of gage uncertainty based on studies performed at the factory using precision digital 
gages according to recommended procedures.
Table 5-34 2.92 mm Connector Pin Depth Characteristics
Device  Typical Pin Depth 
in Millimeters  
(10
–4
 inches) 
Measurement Uncertainty
a
  
in Millimeters  
(10–4
 inches) 
Observed Pin Depth Limits 
in Millimeters  
(10
–4
 inches) 
2.92 mm ECal Module (N4692D) –0.0025 to –0.0152 
(–1.0 to –6.0)
+0.0030 to –0.0030 
(+1.2 to –1.2)
+0.0005 to –0.0182  
(+0.2 to –7.2)
2.92 mm Adapter  0 to –0.0381 
(0 to –15)
+0.0030 to –0.0030 
(+1.2 to –1.2)
+0.0030 to –0.0411  
(+1.2 to –16.2)
a. Approximately +2 sigma to –2 sigma of gage uncertainty based on studies performed at the factory using precision digital 
gages according to recommended procedures.