max=2 | Pump runs again below this set point (T3) |
Energy calculation mode (PROGRAM 1):
USDT 2004 computes the energy production as a function of the temperature differential and fluid volume. In addition, the system
BTU | Energy calculation mode |
S IN | Sensor port selection for inlet temperature (1, 2, 3, |
S OUT | outlet temperature (1, 2, 3, |
F SEN | Sensor port selection for flow rate (1, 2, 3, |
Energy calculation will be initiated only after temperature sensor ports are designated. Flow rate can be either a constant number to be entered by user, or from a flow meter input. To activate the energy calculation without using the flow meter's impulse input, a dash
LLP | Flow meter rate impulse number in liter per pulse, if flow meter is |
| used |
GAL | Constant flow rate in gph instead of flow meter reading in |
| sensor mode |
GLYCOL | |
CLEAR | Sets the BTU meter's counter to zero |
DIF | Sensor calibration |
The output of USDT 2004 unit is kW for system power and kWh or MWh for collected energy.
dvancedAMode – USDT 2004 is extremely powerful. It can be used in wide range of applications such as a BTU meter, a boiler fuel optimizer, a swimming pool temperature differential controller, a greenhouse temperature regulator, an air handler, and more. Factory
settings are exclusively for solar water heating systems in the USA market. However, all its parameters can be changed to meet the unique requirements of other applications. The user may use access code "64" to modify the USDT 2004 program mode and its parameters.
Men | This mode is for advanced applications |
The factory setting will be retrieved by pressing and holding ò key during powering of the unit. A “RESTOR” displays for three seconds while factory settings are restored.
Selection of different sensor types, energy collection calculation parameters, system protection and optimization can be can be modified in advanced (Men Domain) mode.
Mode Operation
SENSOR Selects sensor type
SGUARD Protects system from overheating and frost
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