Triplett 2000 - Manual (Page 32)

Page 32
5.5 Measuring Dry Contacts
5.5.1 Refer to Section 3.0, Preparation For Use, and Section 4.0,
General Operation, before attempting any measurements.
5.5.2 Set the Code Function Switch to the NORM position. The
position of the Signal Select Switch does not matter.
5.5.3 Attach the test leads to the Test Set. The red lead is con-
nected to the VOM Jack, and the black lead is connected to the
COM Jack.
5.5.4 Connect the test leads across the contacts to be measured.
5.5.5 The Pointer will be in one of two positions. If the contacts
are open, then the Pointer will rest on the left side of the dial by the
OHMS scale infinity mark. If the contacts are closed, then the Pointer
will deflect to full scale and rest on the Ohms Zero Mark. The Pointer
will thus follow contact closure. Note: The pointer does not indicate
resistance of the contacts.
5.5.6 If code timing parameters are to be measured, select the
desired parameter using the Code Function Switch. Refer to Sec-
tion 2.1 for a description of these functions. Rate is read using the
black CODE RATE scale. On Time is read using the black percent-
age (%) scale.
5.5.7 The Peak Hold and Peak Follow functions behave differ-
ently in the Dry Contact range than the other ranges. In the Dry
Contact range, Peak Hold and Peak Follow both, will detect and
hold a momentary contact closure. When a momentary closure is
detected, the Pointer will deflect to full scale and remain there until
reset by changing the Code Function Switch or the Range Switch.