Emerson Rosemount Analytical 400A Instruction Manual page 25

Instruction Manual
IM-103-400A, Rev. 1.0
December 2008
Feature
Sample Gas Requirements
Non-Flammable Sample
Flammable Sample
Burner Air Requirements
Sample Bypass Flow
Stability
Range
Output
Standard
Optional
Safety Features
Contacts
Temperature Control
Data Display
Range Display
Remote Range Control
Range ID
Specification
0.35 to 3.0 liters/minute at 5 to 10 psig (34 to 69 kPa)
470 cc/minute maximum for safety
350 to 400 cc/minute of zero grade (THC <1 ppm) air, supplied
at 25 to 50 psig (172 to 344 kPa)
0,3 to 3,0 liters/minute
Electronic stability at maximum sensitivity is 1% of full scale
throughout ambient temperature range of 32°F to 110°F (0°C to
43°C). Built-in temperature controller minimizes effect of
ambient temperature variations on internal flow and electronic
systems.
Eight ranges: 1, 2.5, 10, 25, 100, 250, 1000 and REMOTE.
In addition SPAN control provides continuously variable
adjustment within a dynamic range of 4:1
0 to 5 VDC, 0 to 1 VDC, 0 to 0.1 VDC fully buffered
4 to 20 mA isolated voltage to current
1) Flame-on indication and automatic flame-out fuel shutoff.
2) All metal tubing with ferrule/nut compression fittings to
minimize potential fuel leaks.
3) Self-ventilated system maintains internal atmosphere below
25% of LEL for worst case internal leakage.
Form A contact operates in parallel with flame-out fuel shut-off
solenoid contact rating (24 VDC at 1 A) for sample shut-off by
use of factory ordered kit (PN 624080) if sample is flammable
(Hydrogen)
Setpoint maintained at 122°F (50°C)
3-1/2 digit LED, characters 0.52 inch (13,2 mm) high, range
0000 to 1999
1 digit LED, character 0.52 inch (13,2 mm) high
(1 to 7 normal ranges, 0 to remote control)
Optically isolated range control
Range ID is optional
Model 400A
1-17