Vanguard DMOM-100_200 s2 - Manual (Page 16)

DMOM-100/200 Series 2 Operating Procedures
16
Rev 2, 2009
4.0 DMOM IMPORTANT FEATURES
4.1 Operating Voltages
The DMOM operates with voltages between 100-240Vac, 50/60Hz.
4.2 DMOM Serial Interface
A built-in RS-232C port permits the DMOM to be interfaced with an IBM-compatible personal
computer. An IBM PC-compatible software package supplied with each DMOM allows the user to
retrieve test records stored in the DMOM’s memory. The software is compatible with Windows XP
and Vista.
The RS-232C port is also used to calibrate the DMOM at the factory.
NOTE
The DMOM communicates with the PC via the RS-232C port only in computer interface mode.
4.3 DMOM LCD Contrast Adjustment
The purpose of this procedure is to adjust the darkness level of the alphanumeric characters
shown in the LCD display, in order to produce the best readability for the ambient light in the
testing area. To darken the LCD contrast, press and hold the Contrast/Paper
∧ key for more than
1 second. To lighten the LCD contract, press and hold the Contrast/Paper
∨ key for more than 1
second. Release the key when the desired contrast level is obtained. The DMOM will save this
LCD contrast setting level in memory.
4.4 DMOM Paper Advance or Retract
To advance the thermal paper, press and release the Contrast/Paper
∧ key. The thermal paper
will be advanced by 1/2 inch. To retract the thermal paper, press and release the Contrast/Paper
∨
key. The thermal paper will be retracted by 1/2 inch.
5.0 DMOM PRINTER PAPER
The DMOM printer uses 2.5-inch wide thermal paper for printing test results. In order to
maintain the highest quality printing and to avoid paper jams, we recommend using the paper
supplied by our factory. Paper can be ordered from the following two sources.
Vanguard Instruments Co, Inc.
1520 S. Hellman Ave.
Ontario, CA 91761
Tel: 909-923-9390
Fax: 909-923-9391
Part Number: TP-3 Paper
OR
BG Instrument Co.
Route 1, Box 258
Mead, WA 99201
Tel: 509-893-9881
Fax: 509-893-9803
Part Number: TP-3 paper