Model EDI-54V Overview
Model EDI-54V indicator is an advanced readout unit/logger which
can be used to log data from vibrating wire sensors. It can be store
calibration coefficients of more than 10,000 vibrating wire sensors so that the
value of the measured parameter from the sensors can be shown directly inproper
engineering units. For sensors provided with an internal YSI 44005 or
equivalent 3 k0hms thermistor, the sensor temperature is displayed directly in
degree Centigrade or Fahrenheit. The indicator has an internal non-volatile
memory with sufficient capacity to store about 525,000 readings while scanning
from any of the programmed transducer. Each reading in stamped with date and
time.
Model EDI-54V indicator uses a smartphone with Android OS as
readout with a user friendly software for configuration, retrieving and viewing
sensor data.The phone running on Android operating system provides a powerful
platform to manage our configuration application efficiently. Since readout
unit is a mobile phone, its operation is user friendly and convenient.
The huge computational and image processing power of smartphone
allows the application to display the logged data as tables and graphs and keep
a record of previous data. This allows the operator to verify the logged data
and investigate any anomaly immediately at site. The measured reading can be
viewed in terms of time period, frequency, frequency squared or directly in
relevant engineering units.
Specifications
Input
Suitable
for input from all two wire vibrating wire transducers with 110 to 150 Ohms (nominal)
sensor coil. Thermistor input from sensors provided with integral 3 kOhm (@
25°C) R-T curve matched YSI 44005 or equivalent thermistor.
Excitation
Swept
frequency excitation, 5 V (typical) peak to peak square wave.
Frequency measurement
Range:
| 500 - 5000 Hz
|
Measurement time:
| 128 cycles |
Measured parameter:
| Time period
|
Resolution:
| 0.01 micro-seconds (in time period display mode)
|
Accuracy:
| Period measurement ± (0.006% of reading + 0.004µsec)
|
Displayed parameters:
| Time period, frequency, frequency squared and engineering units.
|
Measurement range:
| -20 to + 100°C
|
Resolution:
| 1°C
|
Memory : 64 Mb flash memory.
The indicator has
an internal non-volatile memory with sufficient capacity to store about 525,000
readings from any vw sensor, with date and time.
Real time clock
A real time clock
is provided for time and date stamping of stored data.
RTC time keeping
accuracy: ± 30 seconds/month, typical, over the operating temperature range
with indicator powered on.
Input/output connectors
Circular splash
proof 7-pin connector for sensor input and 6-pin connector for battery charger.
