Operator`s manual

Signametrics 168
#define _120u 4 // 120uF
#define _1200u 5 // 1,200uF
#define _12m 6 // 12,000uF
// Capacitance: AC Based Caps.
#define _10n 0 // 0.01uF (10nF)
#define _100n 1 // 0.1uF
#define _1u 2
#define _10u 3 // 10uF
#define _100u 4
#define _1m 5
#define _10m 6
// 4-wire RTDs: five basic types. No auto-ranging allowed
// Use DMMSetRTD to modify the default Ro form 100 Ohms
#define _pt385 0 // pt385 100 ohms
#define _3911 1 // pt3911 100 ohms
#define _3916 2 // pt3916 100 ohms
#define _3926 3 // pt3926 100 ohms
#define _cu 4 // cooper 9.035 Ohms
// VAC Source two ranges
#define _900mVsrc 0 // selectes the 900mV range
#define _8Vsrc 1 // select the 8V range
// IDC Source five ranges
#define _1uA 0
#define _10uA 1 // 10uA source (to 12.5uA)
#define _100uA 2
#define _1mA 3
#define _10mA 4 // 10mA source (to 12.5mA)
// Inductance measurements: six ranges
#define _33uH 0
#define _330uH 1
#define _3300uH 2
#define _33mH 3
#define _330mH 4
#define _3300mH 5
// Extended Resistance and Synthesized Resistance ranges
#define _400k 0
#define _4M 1
#define _40M 2
5.11.5 Aperture parameters
The following list contains the definitions for the available Apertures. Use DMMSetAperture() and
DMMGetAperture() to set and retrieve the apertures.
#define APR_5p066s 0 // 5.0666s apreture, 60Hz rejection (~0.2rps)
#define APR_5p12s 1 // 5.1200s aperture, 50Hz rejection (~0.2rps)
#define APR_2s 2 // 2.0s aperture, 60Hz rejection (~0.5rps)
#define APR_2p08s 3 // 2.080s aperture, 50Hz rejection (~0.5rps)
#define APR_1p0666s 4 // 1.06666s aperture, 60Hz rejection (~1rps)
#define APR_p96s 5 // 960ms aperture, 50Hz rejection (~1rps)
#define APR_p5333s 6 // 533.33ms aperture, 60Hz rejection (~2rps)
#define APR_p48s 7 // 480ms aperture, 50Hz rejection (~2rps)
#define APR_p2666s 8 // 266.666ms aperture, 60Hz rejection (~4rps)
// For Trigger Operations and all measurements involving the DMM buffer, use Apertures to a value
// between APR_p16s (160ms) and APR_2p5us (2.5us)