Sierra Monitor 4400 User Manual

In-Stream Hydrogen Sulfide Analyzer
The Model 4400 In-Stream Hydrogen Sulfide Analyzer is used to continuously verify the H2S content of a natu­ral gas sample for the presence of 0-100 ppm levels of Hydrogen Sulfide. This system is used to insure that H
2
ceptable levels to help guard against the corrosive ef­fects of H2S on compressors, pipelines and process equipment. It is intended for continuous monitoring prior to the addition of odorants to the gas.
The Sierra Monitor Model 4400 provides the user with a low-cost, easy-to-use solution to effective monitoring of natural gas streams. This system accurately measures H2S concentration in the 0-100 ppm range. Fast re­sponse of 90% of step change within 30 seconds en­ables the user to respond quickly to changes in natural gas supply conditions to prevent product contamination.
There is minimal maintenance with the Model 4400 with no tapes to replace, no conditioning solutions, no me­chanical stream blenders to calibrate. Calibration is easy with external application of span gas and simple one person adjustments. Calibration and swapping of the gas sensor is a quick and simple operation performed every two weeks.
The 4400-10 receives a low pressure natural gas slip­stream sample. A flow controller in the system delivers a constant flow to the gas sensor and allows for easy calibration and maintenance. An in-line coalescing filter protects the system from sample contaminants.
Model 4400
A 4-20 mA linear signal proportional to sample concen­tration is provided from the sensor assembly . This sig­nal can interface with a Sierra Monitor Model 4107-99 Transmitter/Display , a single channel controller , the Sen­try multi-channel controller or most industry standard controllers or PLCs.
The Model 5100-99-IT-AL Transmitter/Display option can accept the 4-20 mA signal from the Model 4400-10 and provide digital display of the H2S concentration, dual concentration alarm contacts, 4-20 mA output and se­rial MODBUS communication. The Model 5100-99-IT ­AL can be mounted directly to the Model 4400 H2S Ana­lyzer or at a remote location. The Model 5100-99-IT -AL is mounted in an explosion proof enclosure available in aluminum or stainless steel enclosures.
Features Benefits
No tapes to replace or conditioning solutions Minimal maintenance, no hazardous material to
dispose
Fast response Prevention of product contamination Simple one-person adjustments Easy calibration, minimal service time
Sierra Monitor Corporation 1991 Tarob Court Milpitas, CA 95035 USA (408) 262-6611 (800) 727-4377 Fax: (408) 262-9042
Specifications:
Model 4400
In-Stream Hydrogen Sulfide Analyzer
4400 In-Stream Analyzer
Power: 24VDC Output: 4-20 mA = 0-100 ppm H
Environmental:
Temperature Range
Operating:: -20 to 50 Storage: -40 to 50
Humidity: 0-95% RH (non-condensing)
Sensor:
Range: 0-100 ppm Hydrogen Sulfide Type: Electrochemical Life: Approximately 1 year in cycled
service
Response: <30 seconds to 90% FS
Mechanical:
Area Classification: Div 1, Class 1, Groups B,C,D Enclosure: NEMA-1 with removable cover panel Mounting: installs on 9” x 7” “H” Frame Connections: 3 position terminal strip with
separate conduit
Dimensions (WxHxD): 9.0 x 11.0 x 4.0 inches
(22.9 x 27.9 x 10.2 cm)
Weight: 5 lbs (2.2 Kg)
Warranty: 2 years as non non-consumable items
o
C (-4 to 122oF)
o
C (-40 to 122oF)
S
2
5100-99-IT Transmitter/Display
Power: 24VDC
Operating Temperature Range: -40 to 50
Display: Fixed and Scrolling LED Optional Alarms: Dual level alarms (8A) plus
fault alarm (4A)
Serial Output: Bi-directional RS-485
MODBUS
Mechanical:
Housing: Aluminum: Epoxy-coated, die-cast,
copper-fire aluminum Stainless Steel: 316 Stainless Steel
Dimensions( WxHxD):
Aluminum: 6.0 x 4.4 x 4.9 in. 316 Stainless Steel: 5.9 x 4.8 x 4.9 in.
Weight:
Aluminum: 2.7 lbs (1.3 Kg) 316 Stainless Steel: 5.4 lbs (2.6 Kg)
o
C (-40 to 122oF)
®
protocol
Ordering Information:
4400-10 In-S tream Hydrogen Sulfide Monitor 5100-99-IT-AL Single Point Explosion Proof Transmitter/Display - Aluminum 5100-99-IT-SS Single Point Explosion Proof Transmitter/Display - S tainless S teel
Model 5100-99-IT-AL Transmitter/Display
Sierra Monitor Corporation 1991 Tarob Ct. Milpitas, CA 95035 (408) 262-661 1 800-727-4377 FAX: (408) 262-9042
Visit our Web site at: www .sierramonitor .com E-Mail: sales@sierramonitor .com
© 2009 by Sierra Monitor Corporation