Chapter 10. Vega Specifications; System/Meter Specifications - OPHIR vega User Manual

10.1 System/Meter Specifications

Input Specifications
Thermal, Photodiode
Input Ranges
A to D Sampling rate
A to D resolution and linearity
Electrical accuracy
Electrical input noise level
Dynamic range
Input Specifications
Pyroelectric Sensors
Input Range
A to D Sampling rate
A to D resolution
Electrical accuracy
Electrical input noise
General Specifications
Detector Compatibility
Analog output
Analog output accuracy
Dimensions
Mass
Display
Display digit height
LCD and Keypad lighting
Bargraph segments
Battery
Charger input
Operation between charges
Data Logging and Com.
Power Measurement
Power log period
Max points stored onboard per file
Max points direct to PC file in real
time
Energy measurement
Max real time data logging rate
Max onboard data logging rate
Data transfer of log file from
instrument to PC
Max points stored onboard
General
Memory data storage
(1): Can store up to 10 files for a total of 250,000 points.
(2): The above refers to the rate for logging every single point in turbo
mode. Above that rate the instrument will sample points but not log every
single point.
Chapter 10.
Vega Specifications
15nA - 1.5mA full scale in 16 ranges
15Hz
Resolution: 23 bits plus sign. (0.00001%);
Linearity: better than 17 bits (0.0009%)
±0.25% ± 20pA new; ±0.5% ±50pA after 1 year
500nV or 1.5pA + 0.0015% of input range @3Hz.
9 decades (1:10
0 - 6V full scale
4KHz
12 bits no sign (0.025% resolution)
±0.25% new; ±0.5% after 1 year
2mV
Thermopile, photodiode and pyroelectric
4 scales, user-configurable: 1v, 2v, 5v, 10v full-scale;
0.03% resolution. 100 ohms impedance
±0.2% (of reading) ±0.3% of full scale volts
110W x 40D x 210H
450g
320x240 pixel Color TFT LCD; Active area 70x52mm approx
17mm
LED's. Operates from charger or battery
320
3 x AA size. 2.4Ah NiMH battery built in.
DC: 12 -25V, 5W; AC: 9 - 18V RMS, 5W.
Charge time 7-8 hours; automatically switches to trickle
charge when battery is full
With low backlight and keypad unlit: 16 Hrs, thermal and
photodiode, 11 Hrs, pyroelectric sensors;
With high backlight: and keypad lit: 11/8 Hrs respectively
RS232
20 sec to 600 hours for both
27,000
(1)
unlimited
RS232
>30Hz
(2)
4000Hz
(2)
~500 points/s
250,000
Maximum communication rate 38400 baud (RS232)
10 data files of an average of 25,000 points each.
Data is not lost when instrument is turned off.
Table 4.
Specifications of System/Meter
105
9
)
USB
27,000
unlimited
USB
>2000Hz
4000Hz
~500 points/s
250,000