Riken Keiki RS-400 Series, Руководство по эксплуатации

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8 Product Specifications 8-1. Product Specifications
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8
Product Specifications
This sampling device is used in combination with the measuring part OHC-800. Therefore, the product
specifications include OHC-800.
8-1. Product Specifications
Model : OHC-800
Measuring principle :
Opt-Sonic calculation through measurement of refractive index and sound
speed
Measuring gas : See "Measuring gas specification sheet" attached.
Measuring targets : Calorific value, density (specific gravity) and WOBBE index
Measuring range : See "Measuring gas specification sheet" attached.
Sampling method : Constant-flow-rate gas introduction using external sampling devices
Self-
monitoring/diagnostic
function
: Status monitoring using four classification categories
•
FAILURE
• FUNCTION CHECK
•
MAINTENANCE REQUIRED
•
OUT OF SPECIFICATION
Display : Full-dot LCD (with backlight)
EV lamps Green: Lights up at power-on.
Orange: Lights up in conjunction with Contact Output
1.
Red: Lights up in conjunction with Contact Output
2.
Green: Lights up in conjunction with Contact Output
3.
External Output 1 : 4 - 20 mA DC (insulated, source current type) maximum load resistance of
300
Ω
Minimum resolution of 0.01 mA or less
External Output 2 : RS-485 communication function
External Output 3 : IrDA communication output (for maintenance)
Contact output 1 : Activated if the FUNCTION CHECK or
OUT OF SPECIFICATION condition is met.*
[No-voltage contact, contact capacity of 2 A, 30 VDC (resistance load)]
Contact output 2 : Activated if the FAILURE condition is met.*
[No-voltage contact, contact capacity of 2 A, 30 VDC (resistance load)]
Contact output 3 : Activated if the MAINTENANCE REQUIRED condition is met.*
[SSR contact, contact capacity of 20 W, 240 VAC (resistance load)]
How to Operate : Operation using a magnet control key
(The calorimeter can be operated while maintaining the explosion-proof
performance.)
Power supply : 100 - 240 VAC ±10%, 50/60 Hz, max. 18 VA
or 24 VDC ±10%, max. 5 W (The setting can be changed to either the AC
or DC specifications.)
Protection class : Equivalent to IP66 or IP67