Visible illuminance spectrophotometer CL-700A

NIRUSBEthernet

The CL-700A is a compact, lightweight illuminance spectrophotometer for accurate spectral and illuminance measurement from visible to near-infrared wavelengths. It supports single-head operation or multi-unit matrix measurements (up to 15 units) for uniformity and area analysis.

Key features

• Spectral range 360–1000 nm with 1 nm output pitch
• Illuminance range 0.01 to 200,000 lx (chromaticity accuracy guaranteed ≥ 0.5 lx)
• Fast measurement modes (Super FAST ≤ 0.3 s, FAST ≤ 0.5 s, NORMAL variable)
• Matrix measurement up to 15 measurement heads for large-area uniformity checks
• Data outputs: CRI (Ra), TM-30, TLCI, chromaticity, CCT, EML, PPFD, Ee(λ), spectral graph
• Connectivity: USB-C (USB 2.0) and Ethernet PoE (IEEE 802.3af)
• Compact form factor (80 × 170.5 × 35 mm), weight ≈ 214 g — integration-friendly

Functions and integration

• Spectroscopic measurement optimized for VIS and NIR source characterization and sensor testing
• Automatic zero calibration and wavelength correction; user calibration import/export
• Continuous, averaged and multi-point measurement; SDK and dedicated software for automation, real-time display and data export
• Multiple colour-matching functions (CIE 1931/1964/170-2) and advanced indices (TM-30-20, TLCI, SDCM)

Main applications

• Nocturnal environment evaluation and low-light studies
• Low-light performance testing for smartphone cameras and imaging sensors
• Inspection and characterization of industrial light sources (including 360 nm) and NIR sources for security/defence
• Uniformity assessment for architectural lighting, projectors, floodlights and street lighting
• Horticultural lighting measurements (PPFD) and greenhouse lighting inspection

Accessories

• Standard: protective cap CL-A14, wrist strap CR-A73, USB-C cable IF-A49
• Recommended: soft carry case CL-A13

Technical specifications (selected)

• Model: Illuminance Spectrophotometer CL-700A
• Compliance: JIS C 1609-1:2006 (special type); DIN 5032-7:1985 class B
• Wavelength range: 360–1000 nm; output pitch: 1 nm; spectral bandwidth ≈ 10 nm (FWHM)
• Wavelength precision: ±0.3 nm (centroid wavelengths per JIS Z 8724:2015)
• Illuminance measuring range: 0.01–200,000 lx; chromaticity accuracy guaranteed ≥ 0.5 lx
• Accuracy (Standard Illuminant A): Ev ±2% ±1 digit; xy ±0.0015 (5–200,000 lx), xy ±0.003 (0.5–5 lx)
• Repeatability (2σ): Ev 0.5% + 1 digit; xy down to 0.0005 (higher at lower Ev)
• V(λ) mismatch (f1'): within 1.5%; directional response (f2): within 3%
• Temperature / humidity influence: Ev ±3%; xy ±0.003
• Measurement time: Super FAST ≤ 0.3 s; FAST ≤ 0.5 s; NORMAL ≈ 0.5–5 s (conditions apply)
• Measurement functions: X, Y, Z; Ev, x, y; u', v'; CCT, duv; dominant wavelength, excitation purity; Ra, Ri(1–15); TM-30-20; TLCI; EML; PPFD; Ee, Ee(λ)
• Display languages: English, Japanese, Simplified Chinese
• Interface / Power: USB 2.0, Ethernet (PoE IEEE 802.3af)
• Operating / storage: 0–40 °C (operating), -10–45 °C (storage); RH ≤ 85% (no condensation)
• Dimensions: 80 × 170.5 × 35 mm; Weight: ≈ 214 g
• System requirements (software/SDK): Windows 11 Pro 64-bit, macOS Ventura / Sonoma; CPU Intel Core i-series or Apple Silicon M1; RAM ≥ 8 GB (16 GB recommended); USB 2.0 port; CAT6A for Ethernet