OKAYLIGHT PM90 User manual

1.Quick start
Pm90 powermeter
2.Advanced setting
3.Check the data
5.Battery replacement
6.Safe use
7.Specs and maintanence
8.Toubleshootings
1) set system time
2) connect to appliance
3) check the power data
4) Manually turn on/off switch
1) Turn on/off the back light
2) Currency select
3)
4)
Set local power tarrif
Set GHG(Green House Gas) coefficient
5) Countdown setting
6) Overload setting
1) Value button
2) Display button
4.History data
1) Check data from graphic
2) Read accurate data

Quick Start
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
1. Set system time
Pre ss a nd h ol d bu tt on SET
for 3 s ec .
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pre ss + /- b ut to n to
swi tc h ti me s ys te m(12hr and 24hr)
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK to NEX T menu
Pre ss + /- b ut to n to
set h ou r
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s HISTO RY to cyc le choo se
Hour /Mi nut e/S econ ds
Pre ss + /- b ut to n to
set m in ut e an d se conds
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK to NEX T menu
Pre ss O K 10 t im es t o
qui te s et ti ng m od e
Finished Quick setting ,
ready to use!
1

Quick Start
2. Plug Pm90 into outlet, connect appliance to Pm90
Plug the Pm90 into outlet
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
3. Check the on-going data on PM90
connect appliance to Pm90
Briefly press VALUE button to
cycle switch the data displayed
Votage/Current/Wattage/
Max Current/Max Wattage
Frequency/Cos phi
4. Switch on/off the output
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Press and hold VALUE button for
3 seconds to turn ON / OFF the switch
Hol d!
1

Advanced setting
1. Turn on/off back light
the button cell is designed to maintain the RTC(Real-Time-Clock) chipset inside the Pm90
Please note that back light consumes much more energy than RTC chipset itself, so we set a
switch to turn off the back light if back light is not necessary during cell power supply. Please
be advised that turning off the back light will expand battery life sharply.
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK to NEX T menu
Pre ss a nd h ol d th e set
but to n en te r se tting mode
TIME SETTING
(refer to Quick set)
2
1
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pre ss + /- b ut to n to switch the BL(backlight) on / off status *
* it’ s hi gh ly r ec om mended not to turn on the back light, if it’s not very necessary，Leave the power energy to
mai nt ai n th e RT C po wer supply.
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK to NEX T menu

Advanced setting
3. Set local power tarrif
You can use Pm90 easily to know your spend on the appliance just with a simple setting.
under this menu you will be allow to set 2 different power rates base on different time period
e.g. the power tariff in your area follows the table below, do the setting as following steps
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK, adv ance to t ariff 1 t ime set ting
Set R AT E 1 va lu e
Pre ss H IS TO RY b ut ton to
swi tc h be tw ee n the 4 digits
2
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pre ss + /- b ut to ns to change the value
fro m 0~ 9, a ft er c or rectly enter your
tar if f, p re ss O K to advance.
Tariff 1 Day 8:00~18:00 0.177 ponds/kwh
Tariff 2 Night 18:00~8:00 0.127 ponds/kwh
2. Currency select
Pm90 provide you different currency unit for power cost calculation
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
in RA TE 1 me nu , pr es s
his to ry b ut to n 5 ti mes
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pre ss + /- b ut to ns to select your
loc al c ur re nc y sy mb ol
* NOT E: t he c ur re nc y symbol is
sel ec ta bl e und er R AT E1 m en u onl y

Advanced setting
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK, adv ance to t ariff 2 t ime set ting
Set R AT E 2 va lu e
Pre ss H IS TO RY b ut ton to
swi tc h be tw ee n the 4 digits
2
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pre ss + /- b ut to ns to change the value
fro m 0~ 9, a ft er c or rectly enter your
tar if f, p re ss O K to advance.
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Set t ar if f 2 ti me
Pre ss H IS TO RY b ut to n to
swi tc h be tw ee n the 4 digits
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pre ss + /- b ut to ns to change the value
fro m 0~ 9, a ft er c or rectly enter tariff
tim e, p re ss O K to a dvance to next menu.
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK, ent er next m enu
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Set t ar if f 1 ti me
Pre ss H IS TO RY b ut to n to
swi tc h be tw ee n the 4 digits
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pre ss + /- b ut to ns to change the value
fro m 0~ 9, a ft er c or rectly enter tariff
tim e, p re ss O K to a dvance.
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK, adv ance to t ariff 2 s ettin g

Advanced setting
4. Set GHG(Green House Gas) coefficient
Pm90 can provide you the co² emission value by calculating base on the power consumption of
the appliance.
Enter the carbon emission factor in the following process in setting menu
* the carbon emission factor vary in different area, typically value: 0.883 kgco²/Kwh
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK, adv ance to n ext men u
Pre ss H IS TO RY b ut ton to
swi tc h be tw ee n the 4 digits
2
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pre ss + /- b ut to ns to change the value
fro m 0~ 9.
Congrats!
you finished the power tariff setting, the appliance power spend will precisely
calculate base on the data you entered.

Advanced setting
5. Countdown setting
In Pm90 you can set a count down base on time, power, and spend!
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK, adv ance to n ext men u
If th e ti me c ou nt do wn runs
out o f ne ve r se t before, it shows
OFF o n di sp la y, p re ss +/-
to in it ia te i t
2
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pre ss H IS TO RY b ut to n to switch
bet we en t he 6 d ig its
time count down
Time count down: set a count down time to switch off the appliance
Power consumption count down: set a target power consumption to switch off the appliance
Spend count down: set a target spend to switch off the appliance
Pre ss + /- b ut to ns to change the value
fro m 0~ 9, a ft er c orrectly enter ,
pre ss O K to a dv an ce .
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Power count down
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Spend count down
do th e sa me o pe ra tion as
tim e co un t do wn , se t the
pow er c ou nt do wn
do th e sa me o pe ra tion as
tim e co un t do wn , se t the
spe nd c ou nt do wn
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK, adv ance to n ext men u
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK, adv ance to n ext men u

Advanced setting
6. Overload setting
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pre ss + /- t o ch oo se the OVERLOAD
mod e, i n Am pe re o r Watts
2
Pre ss H IS TO RY b ut ton to switch
bet we en t he 4 d ig its
Pre ss + /- b ut to ns to change the value
fro m 0~ 9, a ft er c orrectly enter ,
pre ss O K to a dv an ce .
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
NOT E:
1)o nc e th e ov er lo ad i s triggered, the beeper inside will beep for alarm, and switch will be turned off.
2)t he a dj us ti ng r ange for Pm90 on Ampere is 0~16A , if you the value to be 0, means no overload alarm and
swi tc h pr ot ec ti on p rocess
3)y ou c an s et b ot h cu rrent and wattage overload alarm, the alarm and switch will trigger the first arrived overload
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Pres s OK, adv ance to n ext men u
Congrats!
you finished all the advanced setting!
now get protections on your appliance.

Check the data
1. Value button
3
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Briefly press VALUE button to
cycle switch the data displayed
on top area
Voltage
Current
Wattage
Max Current
Max Wattage
Frequency
Cos phi
On-going volt
current
power
Peak current
Peak power
AC frequency
Power factor
On-going
On-going
2. Display button
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Briefly press DISPLAY button to check the system data on middle area
System time
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Total power consumption
Tariff rate running
Display
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Total working time

Check the data
3
Total spend Total carbon emission
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Time countdown
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Power countdown
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Spend countdown
back to first screen
Congrats!
Now you know how to check out all data collected by PM90.

History data
4
In the front page press
HISTORY button to cycle
the data displayed
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
DAILY
MONTHLY
DAILY DIF.
MONTHLY DIF.
lat est 7 day s histo ry powe r data
lat est 7
lat est 7 mon th hist ory pow er data
lat est 7 dat a of powe r diffe rence s in adja cent da ys
dat a of powe r diffe rence s in adja cent mo nths
1. Check daily and monthly data in graphic
The n umber o f ba r st ands for
the p ow er v alue. e.g. 2 bars = 2 watts
The v alue of t he b ar c an be different
dep end on wh at u ni t value it shows up
on ri ght cor ne r, i t could be any combinations
ple ase not ic e th at when you read the data
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
2. Check accurate power data of each day/month
Hol d!
Press and hold HISTORY button
to enter accurate data reading mode,
you will read the exact power data of
each day/week.
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Press +/- buttons to switch in 7 posts
the choose post , and data will be
flashing, from here you can read the
accurate data of each day/month.
Note.: just daily/monthly data available in this mode

History data
4
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Press OK to to quit the history
data mode and return to main menu.

Batteries Replacement
5
1. Remove the cover from battery compartment,
which located at back of PM90.
2. Replace with fresh 2*Lr44 battery, and put back
the cover.
+
+
3. Press any buttons to test the display see if
segment show up on display to conclude whether
batteries are well placed.
ATTN:
1) Please be advised that taking out the battery will erase the system time that
you set before, but the setting information and history data
recorded will be memorized,
please replace batteries with this notice.
2) Batteries are designed to maintain the system time of this device, if the battery
is used to support back light of device, they will run out very easy, we strongly
recommand you to turn off the back light during battery power supply.
and please be advised, turning off the back light in BL menu will only turn off the
back light during battery power supply(you unplug the device from outlet), it
doesn’t stop the back light lighten up when the device is plugged on socket.
you did before
it’s different with reset button which will erase
all the data including the setting,
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET

Safe use
6
NOTICE!
This device is designed to load 3680W(230V16A current) in maximum, but
sometimes your household outlets are only designed for 2300 watts(230V10A),
under this case, if you plug appliance load with 3000W output, the current
draw is under Pm90, so it can pass the Pm90 freely but will cause the outlet
overload. It’s VERY DANGEROUS ignoring the outlet socket overload power.
Take TWO actions to prevent that!
1. Make sure to check the outlet overload power before plug the appliance
on through Pm90.
2. Make an overload setting once you choose the plug, for example your
target outlet is 10A overload current. Plug the Pm90 to the outlet, and
Do the overload setting on Pm90. please refer to overload setting
Please be aware that this device place a role as a bridge between household
outlet and appliance, so the appliance is connected directly to outlet in
some meaning. so the appliance wattage limitation should follow what outlet
allow!
26
VALUE/+ DISPLAY/- SET/OK HISTORY
RESET
Check your outlet overload current
Set overload current on Pm90 base on outlet

Spec and maintenance
7
Specification table
Input/output power 230V~50Hz
Maximum power load 3680Watts
Voltage range: 190V~270V
Current range 0~16A
Current accuracy 0.1A
Power display range 0~3680 Watts
Power accuracy 0.1Watts
Standby current draw 50uA
GHG range 0~999,999 kg
History data latest 7 days/Month
Working Temperature 10-50℃
Maintenance
Don’t leave the batteries out of power in the device,
Frequently check them and replace in time.

Trouble shooting
8
Question Answer
Back light not on in battery supply Turn on back light switch in menu
When I press buttons, can’t wake
up the display
Check whether the batteries run out
The appliance is plugged on Pm90,
but there’s no power output
Check on the display on ON/OFF icon,
see whether the switch is turned off.
Why the beep is on
If you set either 3 of the count down functions,
the beeper will be on for a while once program
finish.
You appliance load trigger the target.
How long the battery last?
1) If Pm90 is plugged on socket, there’s 0
current draw from battery.
2) If Pm90 off the outlet, and back light is config to be
off, will last 120 days ( )with no operation on buttons
*
*Battery life is based on how often you operate the device, the 120 days is a theory number
measure and calculated. the result may vary in using.

NOTE:
For a Class B digital device or peripheral, the instructions furnished the user shall
include the following or similar statement, placed in a prominent location in the text of
the manual:
Note: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
! WARING：changes or modifications not expressly approved by the party responsible
for compliance could void the user's authority to operate the equipment.