TSI Instruments DustTrak 8520 - Page 60

Appendix A
50
Alarm Output (selected instruments only):
Range ............................... 0.002 to 100 mg/m
3
Maximum voltage input .... 15 VDC
Maximum current ............. 1 amp
Physical:
External dimensions: ........ 221 mm x 150 mm x 87 mm (8.7 in x
5.9 in x 3.4 in)
Weight (with batteries): ... 1.5 kg (3.3 lb.)
Display: ............................. 4 digit LCD, 15 mm (0.6 in) digit height
Factory Maintenance:
Factory clean/calibrate: .... Annually
User Maintenance:
User calibration: ............... As needed
Clean nozzle: ................... After every 350 hours at 1 mg/m
3
(e.g., 350 hours at 1 mg/m
3
, 35 hours at
10 mg/m
3
or 3.5 hours at 100 mg/m
3
)
Change internal filters: ..... After every 700 hours at 1 mg/m
3
(e.g., 700 hours at 1 mg/m
3
, 70 hours at
10 mg/m
3
or 7 hours at 100 mg/m
3
)
Serial Interface:
Type: ................................ RS-232
BAUD rate: ....................... 1200
Data Bits: .......................... 8
Stop Bits: .......................... 1
Data Format: .................... ASCII
Power Requirements:
External Adapter: ............. 6 VDC, 300 ma
or
Batteries: .......................... 4 C-size Alkaline
Battery run-time: ............... 16 hours (typical)
EMI/RF Immunity:
1. Complies with Emissions Directive Standard: EN50081-1:1992
2. Complies with Immunity Directive Standard: EN50082-1:1992