42
(a) Model 6553 Gas Monitor Unit
Available Ranges:
(a)100 to 80% or 100 to 85% H
2
in air
or 80 to 100% or 85 to 100% H
2
in air
(b) 0 to 100% hydrogen in carbon dioxide
(c) 0 to 100% air in carbon dioxide
Digital Display Units:
%H
2
in Air:
4689 501 or 4689 503
%H
2
in CO
2
/ %Air in CO
2
:
4689 500
Range Selector Switch Position:
(1) Percentage by volume, hydrogen in air – Upper Display
(2) Percentage by volume, hydrogen in carbon dioxide – Lower Display
(3) Percentage by volume, air in carbon dioxide – Lower Display
Accuracy (display units):
±
0.25% of scale span
Ambient Temperature Range:
0 to 40
°
C
Power Supply :
115 V ac or 230 V ac, 50/60 Hz
Power Consumption :
30 VA approximately
Outline Dimensions:
290 x 362 x 272 mm
Weight :
12 kg approximately
Environment :
Sheltered interior, 0 to 90% RH
(
b) Model 006540 203 & 006548 000 Katharometer Analyser Panels
Electrical Input:
350 mA d.c., from 4234 PSU
Signal Output:
0 to 10 mV for H
2
in air (85% to 100% H
2
in air)
Accuracy:
±
2% fsd each range
Dead Time:
Typically 5 seconds
Response Time:
Typically 40 s for 90% step change at katharometer. Tubing and drying chamber
introduce extra delays.
Ambient Temperature:
Maximum of 55
°
C
Sample Connections:
Compression couplings,
6540 203
8 mm outside diameter tube.
6548 000
6 mm outside diameter tube.
Sample Pressure:
006540 203
Minimum, 125 mm H
2
O
Maximum, 0.35 bar (G)
006548 000
Minimum, 125 mm H
2
O
Maximum, 10 bar (G) static
Sample Temperature:
55
°
C maximum
Normal Sample Flowrate:
100 to 150 ml min
–1
Maximum Gas Flowrate:
250 ml min
–1
Minimum Gas Flowrate:
50 ml min
–1
Outline Dimensions:
610 x 305 x 152 mm
Weight:
8.6 kg approximately.
Environment:
Sheltered interior
13
SPECIFICATION
Содержание 6553 Series
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