_________________________Shihlin Electric SPM-3 User Guide__________________
9
Chapter 4 Operation & Setting
4.1 Display
The SPM-3 is equipped with a large back-lit LCD and 4 function buttons. It shows up to five
instantaneous measurements simultaneously.
Item Display
Content
1
Values of
V, I, kW, kvar, kVA, PF, frequency, demand
, eligibility rate, and
unbalance rate
2
Values of energy & time
3 Load
percentages
4
Unbalance rate indicator
、
THD(V
、
I)
5
Types of measurement (I,U,E,P….)
6
Alarm buzzer on/off
7
Indicator for time display in zone 2
8
Indicator for energy display in zone 2
9
Indicator for pulse output and communication
10
Display for power factor and load characteristics
11
Units for measurements
12
Function Buttons, “M” “P” “E/T” “V/A”
13 DO1,
DO2
Status
***D
I、
DO3
、
DO4
：
To be available in near future
1
3
4
5
6
7
8
9
10
2
11
12
13