AccuMAX Radiometer/ Photometer ***READOUT UNIT ONLY***

Readout Unit (XR-1000)

• Resolution: 4-digit auto-ranging display with backlight
• Screen: 128 x 64-dot pixel chip on glass STN transmissive monochrome LCD 2.8 in (7.1 cm) diagonal
• Sampling Rate: 7.5 Hz (Single Sensor); 15 Hz (Dual Sensor)
• Read Update: 2 Hz
• Overall Accuracy: Better than ±5% with reference to NIST standards
• Temperature Coefficient: ±0.025%/°C (0 to 50°C)

Power Requirements

• Battery Operation: Two nonrechargeable 9V alkaline battery cells are included as standard
  

Dimensions
Readout Unit
• Length 7.75 in (19.7 cm)
• Width 4.25 in (10.8 cm)
• Thickness 1.25 in (3.2 cm)
• Weight 0.8 lb (360 g)

• ASTM E2297
• ASTM Compliant | MIL Standard Certified | NIST-Compliant ±5% Accuracy

• High-Resolution Display: 4-digit auto ranging monochrome LCD, 128 x 64 dot pixel chip, with a 2.25-inch illuminated screen.
• Optimized Sample Rates: 7.5 Hz for single sensors, 15 Hz for dual sensors, ensuring precise real-time data collection.
• Temperature-Stable Performance: Excellent temperature coefficient of +0.025%/°C, operating effectively between 0°C to 50°C.
• Industry-Leading Accuracy: Better than ±5% accuracy, with all readings referenced to NIST standards.
• American Made Quality - Manufactured in the USA with NIST-compliant ±5% accuracy, ensuring dependable measurements that meet the highest quality control standards.

• AccuMAX XR-1000 Radiometer/Photometer Readout Unit
• Protective Rubber Boot for enhanced durability
• 2 Non-Rechargeable 9V Alkaline Batteries
• Calibration Certificate

Compatible Sensors (required for operation and calibration)

The XR-1000 requires one of the following sensors to function. At least one sensor must be present during purchase for the unit to operate and for calibration to be performed:

• XS-555/L
• XS-555/I
• XS-254
• XS-300
• XS-365
• XS-450
• XDS-1000
• XDS-1000A

What is the AccuMAX™ XR-1000 used for? It's a handheld digital radiometer readout unit used to display UV-A and visible light intensity measurements for verifying inspection lamp output, confirming lamps meet the minimum intensity required for compliant fluorescent penetrant and magnetic particle inspection.

What sensors work with the XR-1000? The XR-1000 pairs with any AccuMAX sensor detector: XDS-1000, XDS-1000A, XS-555/L, XS-555/I, XS-254, XS-300, XS-365, or XS-450; letting technicians measure UV-A, visible, UV-C, UV-B, or bilirubin-range light depending on the sensor selected.

Does the XR-1000 come calibrated? Not on its own, purchased standalone, the XR-1000 is a readout unit only and is supplied uncalibrated. To get a factory-calibrated, specification-verified system, it must be ordered together with a compatible sensor. If you already own a sensor, you can send it in with a new XR-1000 for combined calibration (service fees apply).

What is the AccuMAX™ used for? It's a handheld digital radiometer/photometer used to measure UV-A and visible light intensity output from inspection lamps, confirming they meet the minimum intensity required for compliant fluorescent penetrant and magnetic particle inspection.

Who uses the AccuMAX? NDT quality technicians, calibration labs, and aerospace inspectors who need a battery-operated meter for the factory, field, or any location where lamp verification happens. It's Spectro-UV's gold-standard radiometer line, with NIST-traceable calibration and multilingual display support.

What's the difference between the XRP-3000 and XRP-3000A? Both share the same measurement ranges (0-100 mW/cm² UV-A, 0-5,300 lux visible) and ±5% NIST-referenced accuracy. The XRP-3000A is designed to ASTM E3022 and ASTM E2297; the standard XRP-3000 isn't compliance-designed to either standard.

How often does my UV radiometer need to be recalibrated, and what happens if it's past due?  Most NDT specifications (including ASTM E1417 and ASTM E1444) require UV radiometers to be calibrated at a defined interval, typically every six months, unless your governing spec or customer requirements state otherwise. A meter that is past its calibration due date should be taken out of service and recalibrated before it is used for acceptance readings, even if it hasn't been used while in storage.