Honeywell 7866 Operation And Maintenance Manual page 22

Specifications and Model Selection Guide
0-20 mA maximum load: 800 ohm
Output Ranges
4-20 mA maximum load: 800 ohm
0/4-20 mA Output Triple Range Analyzer
Range 1: 0 to 100 % CO
Range 2: 0 to 100 % H
Range 3: 0 to 100 % H
Single Range Analyzer
0/4 mA at low range limit
20 mA at high range limit
Alarm Outputs One or two alarms are available; each uses an SPDT electromechanical relay.
Alarm Relay Contacts Rating
Resistive Load: 5 amps @ 24 Vdc or 120 Vac or 240 Vac
Inductive Load: 50 VA
Outputs Single Range:
Triple Range:
Remote Indicator:
Sample Temperature: –10 °C to +50 °C (14 °F to 122 °F)
Sample
Sample Flow: 0.2 to 4.2 cfh (100 cc/min to 2000 cc/min)
Requirements
Sample Pressure: 37 mm Hg (20" H
Sensor outlets must vent to atmospheric pressure.
Reference Gas Triple Range Analyzer
The triple range H
Requirements
(10 – 100cc/min), 2 psig (13.79kPA) max.
Sensor outlets must vent to atmospheric pressure.
Single Range Analyzer
None required, except for ranges:
080000, 095000, 098000, 506000, and 516000; these require pure hydrogen reference gas flow
103000 and 510000; these require air reference flow
Gas Flow Rate: 0.02-0.2 cfh (10-100 cc/min), 2 psig (13.79kPA) max.
Sensor outlets must vent to atmospheric pressure.
Ambient Relative Humidity:
Temperature Range:
Requirements
Storage Temperature:
Power Requirements Control Unit only: Universal supply 90 Vac to 264 Vac (consumption 18 VA maximum) or 24 Vac/dc
(consumption 12 VA maximum); 50 Hz to 60 Hz
Materials Contacting Sample contacts 316 stainless steel, Buna N, Teflon, glass and Viton
Sample Gas
Connections Sample inlet and outlet: 1/4" OD tubing (compression fittings supplied)
Reference gas inlet and outlet: 1/4" OD tubing (compression fittings supplied)
Electrical power inlet: Opening for 1/2" conduit (control unit only)
Sensing unit power inlet (24 Vdc from control unit): 1/2" NPT (female conduit)
12 7866 Triple Range Digital H
in Air
2
in CO
2 2
in Air
2
Two relay outputs for Alarm 1 and Alarm 2
One current output to transmit PV information
Two relay outputs for Alarm 1 and Alarm 2
Two current outputs to transmit PV and range information
Two relay outputs for Alarm 1 and Alarm 2
and CO analyzer requires flowing air as the reference gas, 0.02 – 0.2cfh
2 2
90 % maximum
–10 °C to +50 °C (14 °F to 122 °F)
70 °C maximum (158 °F)
and CO Analyzer/Indicator - Operation and Maintenance
2 2
O) minimum (with filter and flowmeter)
2
9/06