1. INTRODUCTION
The Simpson TS-113 Volt-Ohm-Milliammeter (hereafter referred to as the TS-113 or the
Instrument), is a rugged, reliable instrument which has been designed specifically for
the widest possible range of electrical measurements associated with the RAILROAD
SIGNALING and COMMUNICATIONS field. In construction and general principle it follows
closely the proven Simpson pattern which is based on the experience of many years of
successful multimeter manufacture.
Among its special features are provisions for:
Low insertion loss AC current measurements using an internal current transformer.
“ON” time measurement at any rate in excess of 30 pulses per minute.
An adjustable “Pointer Stop” which facilitates observation of “peak” readings of pulsating
voltage or current on coded track.
A current-limiting diode preventing meter movement overload beyond acceptable limits.
SUPPLIES AND ACCESSORIES
All supplies and accessories required to operate the TS-113 are supplied with the
Instrument and are listed in Table 1.
Table 1
Items & Accessories Furnished with Instrument
Qty.
Description
Part No.
1
Carrying Case Black
00834
1
Carrying Case Yellow (Optional)
00832
1
Test Lead Set, Pair of 4’ Flexible Color-Coded Ends
with Banana Plug & Insulated Clip
6-117744
1
Operator’s Manual
6-117753
1
* 1.5 Volt D Cell, NEDA 13A, Alkaline
2
* 9V NEDA 1604A, Alkaline
1
* 2A Fuse,Littelfuse 3AG 2A, or equal
1
* 2A Cartridge fuse (Littelfuse BLS 2 600V or Bussman BBS 2A)
* Batteries and Fuses are standard items from retail store
4