The P-9801 series optometers are one of the most powerful light measurement instruments available for multiple light detector head applications.
For use in those applications the P-9801 features:
Industries most powerful and fastest multichannel light meter
- simultaneous measurement of all eight detector channels
- wide linear detector signal dynamic range
- short rise time with variable sampling rate
- fast multi-channel data-logging
- manual and remote control operation
- RS232 and IEEE488 interface
- powerful 16 bit microprocessor with large memory
- external trigger input with pre-trigger function
True eight-channel operation
The P-9801 is a true eight-channel optometer desingned with eight photocurrent-to-voltage amplifiers (no multiplexing) and eight 12 bit highly linear analogue-to-digital converters (ADC) enabling signal sampling of all channels simultaneously.
Ten magnitudes dynamic current measurement range
Each channel’s wide 0.1 pA to 2 mA signal range covers the dynamic range of most current semiconductor photodiodes for nearly unrestricted use in any light measurement application. The dynamic range is supported by 8 gain ranges each calibrated for 0.2 % precision.
Adjustable integration time
The fast sampling rate of the P-9801 ADC enables an adjustable integration time of 1 ms up to 999 s formed by the average of multiple measurements with 100 µs integration time. This averaging feature support fast data logger measurements used in peak-to-peak, short pulse energy measurements and other modes.
Metal housing for use in strong electromagnetic environments
The P-9801 features a high quality metal housing for best EMV shielding and rack mount option for protection in strong ambient electromagnetic environments, as in high power arc lamp measurement for example.
Three different versions for universal use in high speed applications
P-9801-V01 is set-up with a gain dependent slew rate of 2 ms to 10 ms for universal light measurement purposes.
P-9801-V02 amplifier offers a gain range independent rise time for the pulse energy measurement of short light flashes using a pulse stretching method.
P-9801-V03 offers a fast rise time of 1 ms for high speed data logger applications with external trigger and pre-trigger function.
Measurement Range Specifications with Light Detectors
The measurement range of optometer combined with light detector is calculated by the measurement range specification of the optometer and the responsivity of the detector head as follows:
- Offset signal
= Maximum Resolution = meter current offset signal / detector sensitivity
Sample: 0.1 pA (0.1E - 12 A) / 3 nA/(mW/cm²) (irradiance detector) = 0.33 nW/cm²
- Minimum measureable irradiation
= offset signal * signal to noise ratio factor
Sample: 0.33 nW/cm² * 50 = 17 nW/cm²
- Maximum measureable irradiation *
= max. signal current detector / detector sensitivity
Sample: 1 mA (10E - 3 A) / 3 nA/(mW/cm²) = 333333 W/cm²
- Display range
= Offset signal to maximum measureable signal
Sample: 0.33 nW/cm² to 333333 W/cm²
- Measurement range
= min measureable irradiation to maximum measureable irradiation
Sample: 17 nW/cm² to 333333 W/cm²
*) The maximum measureable irradiation value may also be limited by thermal radiation, intense UV radiation or other application dependent parameters which must be considered by the end-user.
P-9801 Front
P-9801 Back
| General | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Short description | Powerful and fast multichannel optometer for a multitude of applications thanks to the large selection of different detectors. |
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| Main features | simultaneous measurement of all eight detector channels, large linear dynamic range, short rise time with variable sampling rate, fast multi-channel data logging, manual or interface operation, powerful 16 bit microprocessor, trigger input with pre-trigger function. Three different versions available (different time constant). |
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| Measurement range | depending on the detector, dynamic of 8 ranges available: 2,000 mA to 0,1 pA manuell or autorange |
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| typical applications | Due to the large variety of different measuring heads suitable for a variety of applications |
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| Calibration | Calibrate and adjust the current sensitivity in all eight gain levels. Memory for the calibration data of several measuring heads for the measurement in the absolute unit of the selected measuring head. |
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| Power Supply | (6.5 – 7.5) VDC / 1A |
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| Detector interface | 8 BNC sockets Information: By color measurements four channels are needed for one detector, this is why two color channels are possible. |
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| Trigger | CMOS level (0/5V) / BNC socket, internal pull-up 10 k to + 5 V |
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| Analog output | ± 2.5 V (max. + - 5 V), Ri = 100 R, max. Current = 2 mA, BNC socket |
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| Inputs | Amperes, optical units corresponding to calibration data, factor, percent, log (depends on the measurement quantity) |
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| Measurement range | 8 (2.000 mA to 0.1 pA) manual or autorange |
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| CW integration time | 1 ms – 999.999 s |
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| Pulse trigger | Key run / stop for all channels (channel 1 – channel 8) rising edge or trailing edge |
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| Pulse integration time | 1 ms – 999.999 s |
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| Pulse pre trigger time | 0 ms – 400 ms |
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| Offset | Correction range transcending |
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| Parameter adjustment | Remote control or front panel keys (menu), adjusted values permanently stored (EEPROM) |
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| Calibration information | Stored in EEPROM |
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| Logger memory | Max. 5957 entries each channel, stored in RAM |
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| Measurement range |
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| Plug Types |
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| Measurement modes |
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| Miscellaneous | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Front panel control | 16 keys, menu system |
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| Interface | RS232: 600 – 57600 Baud, 8 Data Bit, 1 Stop Bit, No Parity, Connector DSUB 9pins, female |
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| Dimensions | 280 mm x 250 mm x 70 mm |
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| Warranty | 12 months |
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| temperature range | Operating: (5 to 40) °C |
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| Humidity | <80%, non-condensing |
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| Info | Regular recalibration of the current calibration is recommended. Especially when very small measurement currents have to be measured. In the case of very high humidity, fault currents of the radiometer are possible at low measuring currents and should be taken into account. |
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| Power Supply | 230 VAC / 7 VDC / 1.2 A or 120 VAC / 7 VDC / 1.2 A |
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| Produktname | Product Image | Description | Show product |
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| VL-3701 |  |
Detector head for the measurement of photopic illuminance in Lux [lx]. Features: f1 ≤ 3 %, f2 ≤ 1.5 %, 0.5 nA/lx, 20mm height, for the usage with Optometers and amplifiers, calibration certificate |
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| VL-3702 |  |
Detector head for the measurement of photopic illuminance in Lux [lx]. Features: f1 ≤ 6 %, f2 ≤ 3 %, 0.5 nA/lx, 20mm height, for the usage with Optometers and amplifiers, calibration certificate |
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| VL-3704 |  |
Detector head for the measurement of photopic illuminance in Lux [lx]. Features: f1 ≤ 5 %, f2 ≤ 3 %, 20pA/lx, 20mm height, for the usage with Optometers and amplifiers, calibration certificate |
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| VL-3705 |  |
Detector head for the measurement of scotopic illuminance in Lux [lx]. Features: f1 ≤ 5 %, f2 ≤ 3 %, 0.2nA/lx, 20mm height, for the usage with Optometers and amplifiers, calibration certificate |
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| PD-9310A |  |
High sensitive detector head for the measurement of photopic illuminance in Lux [lx]. Features: f1 ≤ 3 %, 2.8nA/lx, 20mm diffuser, for the usage with optometers and amplifiers, calibration certificate |
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| PD-9310B | |
High sensitive detector head for the measurement of photopic illuminance in Lux [lx]. Features: f1 ≤ 6 %, 2.8nA/lx, 20mm diffuser, for the usage with optometers and amplifiers, calibration |
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| PD-9310B-N |  |
Very high sensitive detector head for the measurement of photopic illuminance in Lux [lx]. Features: f1 ≤ 3 %, 28nA/lx, no diffuser, for the usage with optometers and amplifiers, calibration |
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| VL-1101 + UMPA-0.5-11-RD Detector head |  |
Module detector head for the measurement of photopic illuminance in Lux [lx]. Features: UMPA adapter for usage with integrating spheres, for the usage with optometers and amplifiers, calibration certificate |
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| LDM-9810 |  |
Detector head to measure the photopic spot luminance in cd/m². Features: selectable 20', 1° and 6° viewing angles, view finder, focus able achromatic lens, for the usage with Optometers and amplifiers, calibration certificate. |
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| LDM-9901 |  |
Detector head to measure the photopic spot luminance in cd/m². Features: 1.1° viewing angle, simple to use, very low stray light, for the usage with Optometers and amplifiers, calibration certificate. |
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| VL-3701 with SRT-M37-L |  |
Detector head to measure the photopic illuminance in lx and the luminance in cd/m². Features: front lenses with 1°, 2° or 5° viewing angle, for the usage with Optometers and amplifiers, calibration certificate |
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| PD-9310 with SRT-M37-L |  |
High sensitive detector head to measure the photopic luminance in cd/m². Features: front lense for 1°, 2°, 5° or 10° viewing angle, for the usage with Optometers and amplifiers, calibration certificate |
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| VL-1101 |  |
Photometric detector head with VL-11 mount. Features: modular detector for use with integrating spheres, front lenses etc. For use with optometers and signal amplifiers |
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| ISD-5-VL |  |
Integrating sphere detector for luminous flux (lm) of 2π spot sources. Features: 50mm dia, BaSO4 coating, 12.5mm dia port, for the usage with optometers and signal amplifiers, Calibration certificate |
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| ISD-10-VL |  |
Integrating sphere detector for luminous flux (lm) of 2π spot sources. Features: 100 mm dia, BaSO4 coating, 15 mm dia port, for the usage with optometers and signal amplifiers, Calibration certificate |
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| TD-11VL01 |  |
Photometric, temperature stabilized detector with DP-11 mount. Features: for use with integrating spheres, Operation temperature 50 °C, for use with optometers and signal amplifiers |
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| PD-9304 |  |
Universal detector head for LASER power, illuminance and 400-1100 nm iiradiance. Features: Si-photodiode with 1 cm², exchange able filters and cosine diffuor, for the usage with optometers and signal amplifiers |
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| RW-3701 |  |
Detector head for the measurement of irradiance in W/m². Features: spectral responsivity from 400-500nm (BLUE), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| RW-3702 |  |
Detector head for the measurement of irradiance in W/m². Features: spectral responsivity from 700-800nm (RED), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| RW-3703 |  |
Detector head for the measurement of irradiance in W/m². Features: spectral responsivity from 400-800nm (VIS), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| RW-3704 |  |
Detector head for the measurement of irradiance in W/m². Features: spectral responsivity from 800-1000nm (NIR), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| RW-3705 |  |
Detector head for the measurement of irradiance in W/m². Features: spectral responsivity from 400-1000nm (VISNIR), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| RW-3708 |  |
Detector head for the measurement of irradiance in W/m². Features: spectral responsivity from 950-1700nm (NIR), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| UV-3701 |  |
Detector head for the measurement of irradiance of UV radiation in W/m². Features: spectral responsivity from 315-400nm (UV-A), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| UV-3702 | |
Detector head for the measurement of irradiance of UV radiation in W/m². Features: spectral responsivity from 280-315nm (UV-B), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| UV-3703 | |
Detector head for the measurement of irradiance of UV radiation in W/m². Features: spectral responsivity from 200/250-280nm (UV-C), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| UV-3710 |  |
Detector head for the measurement of irradiance of UV radiation in W/m². Features: spectral responsivity from 320-400nm (UV-A), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| UV-3711 | |
Detector head for the measurement of irradiance of UV radiation in W/m². Features: spectral responsivity from 280-320nm (UV-B), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| UV-3716 | |
Detector head for the measurement of irradiance of UV radiation in W/m². Features: spectral responsivity from 305-400nm (UV-A), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| UV-3717 | |
Detector head for the measurement of irradiance of UV radiation in W/m². Features: spectral responsivity from 325-400nm (UV-A), low cross talk from radiation > 400 nm, cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| UV-3719 | |
Detector head for the measurement of irradiance of UV radiation in W/m². Features: spectral responsivity from 250-400nm (UV), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| UV-3720 |  |
Detector head for the measurement of irradiance of UV radiation in W/m². Features: spectral responsivity from 240-320nm (UV), cosine field-of-view, for the usage with optometers and amplifiers, calibration certificate. |
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| UV-3718 | |
Detector head for the measurement of high irradiance of UV-C 254nm radiation in W/m². Features: pre-aging for long time stability, cosine field-of-view, metal shielded cable, for the usage with optometers and amplifiers, calibration certificate. |
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| RCH-102 |  |
Detector head for high intensity irradiation in UV or blue light curing processes. Features: Separate light integrator and detector with rigid fiber coupling, (320-460)nm UVABLUE responsivity, wide viewing angle, for the usage with optometers and amplifiers, calibration certificate. |
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| ISD-5-Si |  |
Integrating sphere detector for Laser power in W. Features: 50 mm dia, 12.5 mm dia port, BaSO4 coating, 400 nm - 1100 nm responsivity, for the usage with optometers and signal amplifiers, Calibration certificate |
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| ISD-5P-Si |  |
Integrating sphere detector for Laser power in W. Features: 50 mm dia, 10 mm dia port, synthetic ODM98 coating, 400 nm - 1100 nm responsivity, for the usage with optometers and signal amplifiers, Calibration certificate |
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| ISD-10-Si |  |
Integrating sphere detector for Laser power in W. Features: 100mmØ, 15mm dia port, BaSO4 coating, 400 nm - 1100 nm responsivity, for the usage with optometers and signal amplifiers, Calibration certificate |
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| ISD-15-Si |  |
Integrating sphere detector for Laser power in W. Features: 150mm dia, 38.1mm dia port, BaSO4 coating, 400-1100nm responsivity, for the usage with optometers and signal amplifiers, Calibration certificate |
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| ISD-30 |  |
Integrating sphere detector for Laser power in W. Features: 300mm dia, 101.6mm dia port, BaSO4 coating, 400-1100nm responsivity, for the usage with optometers and signal amplifiers, Calibration certificate |
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| PD-11 series |  |
Detector head with DP-11 mount. Features: modular detector for use with integrating spheres, front lenses etc, Si, SiLP, InGaAs, SiC, GaP photodiodes, for use with optometers and signal amplifiers |
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| UV-3706 |  |
Detector head to measure irradiance W/m2 in Bilirubin phototherapy. Features: Bilirubin actinic responsivity, cosine field-of-view, for usewith optometers, calibration certificate. |
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| UV-3711-308 |  |
Detector head for the measurement of irradiance of 308nm Eximer Lasers in W/m². Features: flat spectral responsivity besite 308nm. cosine field-of-view, dose measurement in conjuntion with P-9710-2 optometer, calibration certificate |
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| UV-3709 |  |
Detector for Blue-light hazard measurements. Features: Single-cell detector, BLH actinic irradiance, for the use with optometer, calibration certificate |
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| UV-3725 |  |
Detector for the measurement of UV-C 254 nm irradiance in air disinfection applications. Features: wide dynamic range for UV hazard and effective irradiance, wide angle cosine F.O.V. for straylight measurements, for the usage with optometers, calibration certificate. |
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| PS-3701 |  |
Detector head for plant growth. Features: 400-700nm PAR actinic irradiance, cosine field-of-view, for use with optometers, calibration certificate. |
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| PS-3702 |  |
Detector head for plant growth. Features: 320-500nm phototropism actinic irradiance, for use with optometers, calibration certificate. |
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| PS-3703 |  |
Detector head for plant growth. Features: 590-900nm photomorphogenesis actinic irradiance, for use with optometers, calibration certificate. |
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| RW-37 with SRT-M37-L |  |
Detector heads to measure the irradiance in W/m² and the radiance in W/(m²*sr). Features: front lenses with 1°, 2° or 5° viewing angle, for the usage with Optometers and amplifiers, calibration certificate |
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| PRW-0505 |  |
Integrating sphere detector for radiant power in W of 2π spot sources. Features: 400 - 1100 nm radiometric responsivity, 50 mm dia integrating sphere, 12.5 mm dia measurement port, for the usage with optometers and signal amplifiers, Calibration certificate |
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| ISD-5P-SiUV | |
Integrating sphere detector with UV-enhanced Si photodiode and 50 mm sphere for Laser power in W Features: 250 nm - 1100 nm spectral responsivity, 10 mm dia measurement port, synthetic ODM98 coating, optional SMA Adapter, for the usage with Optometer and signal amplifiers, calibration certificate |
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| ISD-5P-IGA | |
Integrating sphere detector with InGaAs photodiode and 50 mm sphere for Laser power in W. Features: 800 nm - 1800 nm spectral responsivity, 10 mm dia measurement port, synthetic ODM98 coating, optional SMA Adapter, for the usage with Optometer and signal amplifiers, calibration certificate |
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| S-SDK-P9801 |  |
Software Development Kit for P9801 variants. | |
| S-P9801 |  |
Application software for P9801 variants. |
