Rm-6600A
Rm-6600A
UniversalUniversal Radiometer
Radiometer
The Rm-6600A Dual Channel Universal Radiometer
offers unmatched accuracy, flexibility, and convenience
when making optical power and energy measurements.
Paired with the correct probe it can measure cw andaverage power (in Watts), as well as the energy (in Joules)of individual pulses up to 1 kHz, over a wide range ofintensities and wavelengths. Full ratioing capability, highspeed GPIB and Rs-232 computer interfaces, numericand graphical display modes, and statistical analysis ofpulse sets are just some of the standard features. This
tremendous versatility makes it the ideal instrument for
research labs, hospitals, and any other facility withmultiple light sources or applications.
The front panel consists of the LCD display, dual-function
numeric/menu keypad, four softkeys, and power switch.
The large area, fluorescent-backlit active matrix display
exhibits excellent "readability" over a wide viewing angle.
The keypad and softkeys are backlit, and offer good tactile
feel. The softkey functions are software driven, and varydepending on the active menu.

" Measure Both Power and Energy" 1 kHz GPIB and Rs-232 Interfaces" Numeric and Graphic Display Modes" Full Ratioing and Statistical Analysis

Data can be displayed in both numeric and graphic
modes. The numeric mode consists of two smaller display
boxes and bar graphs that continuously show thepower/energy data for each channel, and a larger display
box called the "hot box". There are a number of choices forthe hot box display, including channels A and B, the ratios
A/B and B/A, the log of the ratios, and pulse statistics(energy measurement only): mean, minimum, andmaximum pulse energies,as well as standard deviation.
If A, B, A/B, B/A, log(A/B), or log(B/A) is active in the hotbox when the NUM/CHT button is pressed the Rm-6600A
will display the data in graphical form, allowing power vs.
time and energy vs. event trends to be observed. Scaling
functions make full use of the large area display, andautoscaling allows for plotting of erratic signal levels withminimal data loss.
System functions are intuitively grouped in menus, which
are opened by pressing the appropriate key. The softkeys,along with the ESC and ENTER keys, are used to navigate
through the menus and submenus. Data is entered via thenumeric keypad and softkeys.

23 WELLS AVE.

·UTICA,NY 13502 ·PHONE 315 797-4492·FAX 315 797-0696

Accuracy

250 ms (probe dependent)
1 kHz (probe dependent)
0.03% of full scale
0.100 to 1.000
1015 to 1 (probe dependent)± 2 LSD
Internal, External
A or B; Energy > 7% of F.S.
TTL; trigger edge within ± 20 µsof start of optical pulse± 0.5%

Power Measurement
Resolution
Calibration factor
Ratio range
Ratio accuracy
Chopping frequency
Response time
Background subtract
Accuracy

0.05% of full scale
0.100 to 1.000
1015 to 1 (probe dependent)± 2 LSD
30 Hz ± 0.1 Hz; 50% duty cycle
0.1 sec, 1.0 sec, 10 sec
Up to Pmax of probe± 0.5%

Outputs
Analog output
GPIB
RS-232C
Operating Parameters
Power supply
Temperature range

ENERGY
RjP-400
RjP-600
RjP-700
RjT Series
Contact the factory for additional information regarding
probe compatibility and available options.

90-260 VAC; 47-63 HzOºC to 40ºC operating; -20ºC to 70ºCstorage
31 cm x 29 cm x 15 cm (12" x 11.4" x 6.0")
5.5 kg (12.0 lb)

Dimensions (l x w x h)
WeightSPARE SLOTCHANNEL B

90-260VAC 47-63Hz
1.6 Amp Slo-Blo Max.

6.000
SERIAL/MODELLABEL.630

POWER
RkP-400
RkP-500
RkT Series

The Rm-6600A is provided with a certificate of calibration
showing traceability to the National Institute of Standards
and Technology (NIST) and compliance with MIL-45662
and ANSI-Z540 Sections 7-18.

CHANNEL A

11.35

In power mode the Rs-232 and GPIB update with the front
panel display at 3 Hz. However, in energy mode both arecapable of transmitting energy data in real time up to 1 kHz (xtwo channels). Data can also be stored in volatile memory forlater transfer at a slower data rate. The Rs-232 and GPIB are
fully bi-directional and all front panel commands are
duplicated via computer interface.
The Rm-6600A is compatible with the following probes:

0-10 VDC, 10V equals F.S. for Channel Aand B;the voltage is equal to the mantissaof the ratios A/B and B/ATalker/Listener; Address 0-32; serial pollw/status byte; Terminator LF/CR110 - 115k baud; 8/7 data bits; parity
E/O/N; stop bits 1/2SERIAL

Rear panel features include the universal power entry
module (90-260 VAC, 47-63 Hz), A and B Probe
Connectors, Sync Input (for external chopper), Trigger Input(for energy measurement), Analog Output to drive a chart
recorder, RS-232, and GPIB.

Energy Measurement
Max. pulse width
Max. pulse rep rate
Resolution
Calibration factor
Ratio range
Ratio accuracy
Trigger selectInternal (auto) trigger
External trigger

DISPLAYO t h e r f e a t u re s c o m m o n t o b o t h p o w e r a n d e n e r g ymeasurement include Wavelength Select and Correction
Factor (0.1 - 1.0). Wavelength Select loads the appropriate
spectral correction factor (probe dependent), and Correction
Factor can be used to correct the displayed power/energy forthe transmission loss of a filter or attenuator. Online help isalso available. Pressing the HELP key while a menu item ishighlighted will display information about that menu item.

Channel A, B
1%
3 HzGPIBThe Rm-6600A can measure the true integrated energy ofdiscrete pulses up to 1 kHz, then store the data for future
retrieval or pass it in real time over the GPIB or Rs-232
computer interface. Further, Event Averaging allows sets ofpulses (2-2,000 pulses/set) to be analyzed for the mean,
minimum, and maximum energies, and standard deviation.
This provides valuable data for laser stability studies, etc.
Other energy functions include Single-Shot (capture-andhold) mode and External Trigger.

Bar Graph
Display modeResolution
Display update rate

SPECIFICATIONSThe Rm-6600A can accept both chopped and non-choppedpower probes. Chopped probes take advantage of the fixedfrequency lock-in amplifier circuitry, allowing for greater S/Nratio and background rejection. The power can be displayedin Watts or dBm. Other features include Background Cancel
and selectable Averaging Time.

SETUP A

SETUP B

123RANGE A

RANGE BSETDISPLAY

456CONFIG

NUM/CHT8.45

789ESC

HELP

ENTER

0Rm-6600A UNIVERSAL RADIOMETEROFFON

As a result of our ongoing commitment to product improvement specifications are subject tochange without notice.
REV 020001js