PROTMEX PT20C - Setup & Operation; Key Operations and Modes

8
After power on, the screen display will display the content by default, as shown in
the following table:
4.
Setup & Operation
The relationship between keys and operations is shown in the following table:
version
Display type
display
time
Mont
h/Day
date
Default
language of
the week
Tempera
ture unit
Time
zone
AL1 time
AL2 time
WWVB RCC US
12:00AM
(12 hour
clock)
M/D
January 1
st
, 2021
English
℉
EST
7:00AM，
Off by
default
1:30PM，
Off by
default
WWVB NO RCC US
12:00AM
(12 hour
clock)
M/D
January 1
st
, 2021
English
℉
NO
7:00AM，
Off by
default
1:30PM，
Off by
default
operating
button
【TIME】
【ALARM
】
【ALERT】
【HI/DP】
【
▲
/RF】
【
▼
/MEM】
【SNOOZE/LI
GHT】
Alarm clock
toggle
switch
General
mode
Single
press
------
Switch
time/alarm
1/alarm 2
temperatur
e alarm
on/off
Switch
current
temperature
/heat
index/dew
point
temperature
Switch display of CH1,
CH2, CH3 temperature
and humidity
Switch to view
current/maximu
m/minimum
temperature and
humidity
Turn on the
backlight /
switch
brightness
level
Alarm clock
on&off/Soun
d on&off
Keep
pressi
ng
Enter
setting
mode
Enter
alarm
settings
Enter
temperatur
e alarm
setting
Temperature
unit switch
Clear outdoor channel
data and search signal
again
Maximum and
minimum
interface clear
memory value
RCC
receive/stop(O
nly RCC
version)
------
Setting
mode
Single
press
Select
setting
item/Con
firm
setting
Select
setting
item/Confi
rm setting
Select
setting
item/Confir
m setting
------
Single step increment
Single step
decrement
------
------
Keep
pressi
ng
-----
------
------
------
8 steps/sec increment
8 steps/sec
decrement
------
------