CHAPTER 3: OPERATION KEYPAD
PQM POWER QUALITY METER – INSTRUCTION MANUAL 3–7
To select messages within a subgroup press  . To back out of the subgroup, 
press   to access the previous message or   to go to the next 
subgroup.
FIGURE 3–5: Message Key Operation
3.3.7 Value Keys Setpoint values are entered using the   and   keys. When a setpoint 
is displayed calling for a yes/no response, each time   or   is 
pressed, the "Yes" becomes a "No," or the "No" becomes a "Yes." Similarly, for multiple 
choice selections, each time   or   is pressed, the next choice is 
displayed. When numeric values are displayed, each time   is pressed, the 
value increases by the step increment, up to the maximum. Hold the key down to rapidly 
change the value.
3.3.8 Data Entry 
Methods
a) Keypad Entry
Press the   key once and the first page of setpoints is displayed. Press   
several times to move to the top of successive pages. A header message with two bars in 
the first two character positions is the start of a new page. The page number and page title 
appear on the second line. All setpoint page headers are numbered with an ‘S’ prefix. 
Actual value page headers are numbered with an ‘A’ prefix. 
MESSAGE
MESSAGE
MESSAGE
]] SETPOINTS
]] S1 PQM SETUP
] PREFERENCES
]
] COM1 RS485
] SERIAL PORT
DEFAULT MESSAGE TIME
1.0 MINUTES
DEFAULT MESSAGE
BRIGHTNESS: 60%
MESSAGE ▲
MESSAGE ▼
SETPOINT
MESSAGE4
MESSAGE3
]] SETPOINTS
]] S2 SYSTEM SETUP
SETPOINT
MODBUS COMMUNICATION
ADDRESS: 1
COM1 BAUD RATE:
9600 BAUD
MESSAGE4
MESSAGE3
COM 1 PARITY: NONE
MESSAGE ▲
MESSAGE ▼
MESSAGE ▲
MESSAGE ▼
M
E
S
S
A
G
E
MOVES FORWARD
WITHIN SUBGROUP
MOVES BACK
WITHIN SUBGROUP
MOVES
TO NEXT
SUBGROUP
MOVES TO
PREVIOUS
SUBGROUP
MESSAGE
MSGKEYOP.VSD
NOTE: The brightness setpoint only has an effect on
PQMs with older hardware revisions that include a
vacuum flourescent display (VFD), not a liquid crystal
display (LCD).
VALUE VALUE
VALUE
VALUE
VALUE VALUE
VALUE
SETPOINT SETPOINT
Courtesy of NationalSwitchgear.com