BTU 100 L is a versatile compact energy totalizer extremely useful for measurement of energy conversion. It measures the thermal energy required for air conditioning. It accepts 3 inputs, each one from a flow meter for chilled water, inlet temperature sensor and the outlet temperature sensor. From this it calculates the thermal power and energy consumed in maintaining the temperature at given level. 9 digits are available for total energy and four digits are available for instantaneous power reading. The engg. Unit can be selected by user, either as KW & KWH Or BTU / Hr & BTU
Advantages :
Input | : |
a) 4 - 20 mA from flow meter b) RTD, PT - 100 (Inlet Temperature) c) RTD, PT - 100 (Outlet Temperature) |
Output | : |
Isolated 4- 20 mA proportional to power output. |
Display | : |
16 x 2 LCD, 9 digits for total energy & 5 digits for instantaneous power. |
Totaliser Backup | : |
Back up for total energy provided on power failure for 2½ years |
Power Unit |
: |
BTU / Hr or KW Configurable |
Energy Unit | : |
BTU or KWHr Configurable |
Key Board | : |
4 no. of keys for programming of parameters. |
Accuracy | : |
± 0.25% of F.S. w.r.t. inputs. |
Operating Temperature | : |
0 to 50 °C. |
Temperature Drift |
: |
± 0.015 % / °C |
Relative Humidity | : |
90% R.H.max. Non condensing. |
Data Storage | : |
4900 readings (Hourly Logging) as standard feature. 9800 readings as an optional feature. |
Log View | : |
Possible by scrolling of keys. |
Fault Condition | : |
Indicated by various error codes. |
Comm. Port : | : |
RS 232 or RS485 as per customer's choice with MODBUS RTU Protocol |
Power Supply | : |
85 Vac to 265 Vac, 50 Hz, single phase. |
Construction | : |
Aluminum Die cast housing with IP65 Protection. (Wall Mounting) |
Dimensions | : |
220 mm (L) x 120 mm (H) x 90 mm (D) |