47
ULTRA-E-F
Menu 89 Reset Zero energy totalizer.
If the liquid temperature goes steady, use can remove the temperature sensor and calculate the
energy according to the estimated temperature difference.
4.
Temperature Range
Temperature range is defined in Menu63 and Menu64. The first digit in Menu refers to the
analog signal value input at 1000 ohm, the second digit refers to the analog signal value input
at 1758.56 ohm.
For example, at the condition that when temperature sensor outputs 1000 ohm, temperature is
0
℃
, and outputs 1758.56 ohm, temperature is 200
℃
, this temperature sensor is connected to
T1, and user needs to input 0, 200 in Menu63. User can check the displayed temperature value
in Menu 06.
5.
Pt1000 Temperature Sensors
The meter utilizes two Pt1000 temperature sensors, and the temperature sensors are matching.
Temperature sensor cable is provided by manufacturer.
For measurement accuracy, test security, convenient maintenance, and not affect equipment
operation and production operation, we should pay attention to the following before
installation:
1.
Should be rationally choose installation position, avoid the valve, elbow and equipment
installed with thermal resistance.
2.
For measuring the fluid temperature of pipe center, generally the measurement terminal is
inserted into the pipe in the center.
3.
Water supply temperature sensor (high temperature point, insertion type) must be installed
in flow transducer downstream side, and is apart from the downstream flow transducer 5DN.
The return water temperature sensor (low temperature point) should choose the position where
is nearest to water supply temperature sensor.
6.
Clamp-On Temperature Sensors Installation
When determining the installation position of temperature sensor, we should pay attention to
the pipeline surface. Pipeline surface must be clean before installing temperature sensor, then
use belts to fix temperature sensor.