Programming instructions
To Set Time, scroll to this option and select. A new Set the 
time will appear. Use the UP ▲ or DOWN ► button to select 
the desired hour, minute and second. Press √ to select and 
advance to the next entry, or to complete the time setting and 
return to the Set Time / Date menu.  
Set Time zone 
Select a Time Zone Offset to match the time in your local area. This is done in minutes. Use the UP 
▲ or DOWN ► buttons to select the desired time offset from UTC (Greenwich time) to obtain your 
local time. Press √ to select and return back to the Set Time / Date menu. 
For Eastern Time Zone enter - 300 
For Central Time Zone enter - 360 
For Mountain Time Zone enter - 420 
For Pacific time Zone enter - 480 
Electricity Rates 
The preprogrammed Electricity Rates are viewable in this screen. 
A flat rate refers to a pricing structure that charges a single fixed fee per kWh, regardless of how much 
electricity is consumed or when it is consumed. Volumetric or block rates typically increase with each 
higher volume step of consumption; the more you use, the higher the price becomes. With Time-Of-
Use rates, your cost varies according to the time of day you use the electricity. If you use electricity 
when demand is high (on-peak), your cost will be higher for that electricity. In all cases a Base rate 
may be applied.
Electricity costs are calculated and stored using the IHD’s rates in effect at the time the electricity is 
consumed. New electricity rates will impact electricity costs as of their effective date and time. A rate 
change will not alter stored electricity costs. Electricity usage and cost data are stored every 15 
minutes. This information is displayed in various ways in the History and Summary views. 
The Time-of-Use (TOU) rates appear on this screen. In this example, there are three tiers with 
increasing cost. Typically the tiers may be referred to as: 
$ = Off-Peak 
$$ = Mid-Peak 
$$$ = Peak or On-Peak 
The second example shows a Base rate of $32 that is applied once per billing period, irrespective of 
quantity or time of use. 
The values shown are examples only and may differ from your actual rates. 
For volumetric (or block) applications, the rates shown are for each block, together with the kWh level 
they are valid from. The $ symbol is for the first block, (e.g. 0-499 kWh) with each successive level 
represented by an additional $. (e.g. $$ 500-1199kWh, $$$ > 1200kWh). The values listed are 
examples only and may differ from the actual. 
The second example shows four blocks and a Base rate of $8 that is applied once per billing period – 
irrespective quantity of use. 
The values shown are examples only and may differ from your actual rates. 
Although efforts are made to provide accurate electricity cost information, ALL COSTS ARE ESTIMATES FOR INFORMATIONAL PURPOSES ONLY, NOT FOR BILLING. 










