Kipp&Zonen BSRN Scientific Solar Monitoring System - Manual (Page 123)

111
Cavity size; CW L tolerance 3-cavity, Ø25 m m ; ±2 nm
Side-band blocking OD4, UV to 1200 nm
Detector type; active area UV si-photodiode; 33 m m 2
Sensitivity gain setting x 4 channels high/low by jum per; trim via m ulti-turn pot
Output signal x 4 channels -0.05 to 4.5 VDC m ax.
Resolution <0.005OD (Langley m ethod)
Response tim e 0.2 s to 99%
Operating tem perature -30 °C to +70 °C
Power supply requirem ent 5.5 to 14.5 VDC, 20 m A
Tem perature output 10 m V °C (0.20 V = 20 °C) -1
Desiccant silica gel (visible through front window)
Interface lead 8-core shielded cable, 5 m (free end is unterm inated)
Mounting m ethod Ø25 m m (1") fem ale clam p, with adjustable alignm ent
W eight 1.25 kg (excluding 0.5 kg lead)
B 5.7 Carter-Scott Design Middleton SP01 Sunphotom eter
The SP01 version has fixed field stops and operates in sun photom eter m ode only.
• Four narrow-bandwidths m easured sim ultaneously
• Detectors and filters held at constant tem perature to enhance stability
• Low- noise signal am plifiers with negligible zero offset drift
• Three gain selections accom m odate a wide range of signal strengths
• Motorised field stop on SP01-A can pause for signal zero check
• W eather-proof alum inum housing
Specifications
(A) Spectro-Pyrheliom eter Tube
Dim ension 48 x 312 nm
Field of view: sun photom eter field stop 2.4° (1.2° opening)
solar aureole field stop opening angle 3° - 5°, centre-blocked
(SP01-A only)
Slope angle (with 2.4° field stop) 0.9° (lim it angle = 1.5°)
Filter wavelength and bandpass 368BP5nm ; 412BP5; 500BP5; 862BP5
(Optional filters) 675BP5; 778BP5; 812BP5
Filter size and CW L tolerance Ø25 m m , ± 2 nm
Sensitivity gain selection (by jum per) low (= m edium x 0.2); m edium ; high (= m edium x 5)
Output signal -0.05 to +8.0 VDC m ax
Response tim e 2 s to 99%