1
Table of Contents
Introduction ........................................................................................ 1
Installation and Wiring........................................................................ 1
Keyboard Functions ........................................................................... 2
Configuration...................................................................................... 2
User Menu Descriptions ..................................................................... 3
Calibration .......................................................................................... 4
Displayed Error Messages ................................................................. 4
Specifications ..................................................................................... 5
Warranty and Service Information...................................................... 6
Introduction
The SRP Series Digital Bench Scale is a
large (18” x 18”) bench scale with remote
digital indicator. The system is NTEP-
certified for Class III at 3,000 divisions, and
is legal-for-trade. Housed in a standard
black polymer case, the indicator displays
its numerals on a bright VFD screen. The
base unit features a removable stainless
steel platform, an RS-232 serial communi-
cation port, and adjustable feet for leveling.
The SRP Series uses full duplex RS-232
serial format for communication with many
types of attached support equipment. The
unit can transmit data on demand, or con-
tinuously in several popular data protocols
to match a wide variety of printers, remote
displays, or personal computers. If you plan
to use your scale with equipment other than
a PC, you may have to alter the serial
communication parameters that are embed-
ded in the User Menu.
The User Menu is accessed through the
front panel keys. Complete directions, in-
cluding a graphical road map, are found in
the Configuration section of the manual.
Installation and Wiring
Unless you wish to interface to a device
other than a PC, no wiring is necessary.
Simply connect the indicator to the scale
platform, plug in the AC adapter, and turn
the unit on. If the swivel indicator option was
ordered, the stainless steel post may be
mounted to the bottom of the base with the
hardware provided. Alternately, it may be
mounted to a table or bench. In general,
please allow a 20-minute warm up period
before using the scale.
If interfacing to a PC, simply connect the
optional null modem cable to a serial port
(e.g. COM 1) on your PC. If your computer
has a 25-pin serial port, a standard 9-pin to
25-pin adapter, such as the type used for a
mouse, may be used and is readily avail-
able at your local computer supply retailer.
If interfacing to a serial device other than a PC, you may have to
wire your own cable to communicate with that device. If so, refer
to the 9-pin connector pin out shown at right.
Pin No.
Pin Name
2
Receive Data
3
Transmit Data
5
Signal Ground
