1
Introduction
Specifications
6
Surveyor PDA Plus Detector Hardware Manual
Thermo Scientific
Specifications
The specifications for the Surveyor PDA Plus Detector are as follows:
Wavelength Range:
190 nm to 800 nm continuous
Wavelength Accuracy:
1 nm at 254 nm and 656 nm
Digital Wavelength Resolution: 1.2 nm
Absorbance Range:
2.0 AU to +4.0 AU, 20-bit resolution
Short Term Noise
*
:
*
According to ASTM E1657-94 “Standard Practice for Testing Variable-Wavelength Photometric Detectors Used in Liquid Chromatography” (for
50-mm flow cell, 5 nm bandwidth, 2 second rise time, and MeOH at 1 mL/min.).
6
AU/cm at 254 nm for the 50-mm LightPipe
Drift
*
:
1 mAU/h after warm up at 254 nm at a stable temperature (
1 °C)
Warm-up:
90 min to meet noise and drift specifications
Linearity: deviation
5% up to 2.0 AU at 256 nm
Scan Rate:
0.5, 1, 2, 4, 5, 10, or 20 Hz (user selectable)
Rise Time:
0.0, 0.1, 0.2,0.5, 1, 2, 5, or 10 s (user selectable)
Cell Dimensions:
10-mm LightPipe flow cell, 50-mm LightPipe flow cell
Cell Pressure Rating:
1000 psi
Diodes: 512
Diode Spacing:
1.2 nm
Light Source:
Deuterium and tungsten-halogen lamps, pre-aligned
Filter Wheels:
• Standard Filter Wheel: 2-position wheel, 1 open position and 1 Holmium
oxide/perchloric acid filled cuvette, NIST traceable
• Optional Linearity Calibration Wheel: 5-position wheel, 1 with perchloric acid
blank and 4 cuvettes with different concentrations of potassium dichromate in
perchloric acid, NIST traceable
Analog Outputs (2):
20-bit digital / analog conversion, unattenuated at 10 mV/AU, 100 mV/AU, or
1.0 V/AU
Remote Controls:
Start, Zero
Dimensions: 18
cm
(7.1 in.)
36 cm (14.2 in.)
47 cm (18.5 in.) (
h
w
d
)
Weight: 19.5 kg
(43 lbs)
Power Requirements:
100/115 or 230 V ac; 50/60 Hz, 200 VA max.
Operating Temperature:
+10 to +30 °C
Storage Temperature:
- 40 to +70 °C
Operating Humidity:
5% to 95% non-condensing relative humidity
Product Certification:
CE, TUV-C/US, FCC (EMI)
