MIKASE LABORATORY - PT MITRA KATIGA SEJAHTERA / SUPPLIER ALAT UJI KUALITAS UDARA, AIR, CUACA , KEBISINGAN SERTA GETARAN

Keterangan

APPLICATIONS
Allows a single Nova gas analyzer to be time shared over many sample points. It can be controlled locally
or remotely. Applications include multiple greenhouses, mushroom farms, multiple flue gas ducts, multiple
landfill well or area sampling.

FEATURES
• Available from 3 to 24 sample points selected by solenoid valves
• Greatly reduces cost per sample point for multiplezone analyses
• Digital display of active sample point with time remaining countdown
• Selectable sample time
• Provides sample stream identification
• Manual override with sample hold
• Skip feature allows unwanted samples to be skipped over.
• All samples continuously drawn into sequencer by built in pump to keep non-active samples ' fresh'
• Only active sample point goes to analyzer, the rest are vented.

OPTIONS
• Stainless steel in place of flexible tubing for use with PPM or other low range analyzers
• Microprocessor controlled by customer or PLC or locally by Nova supplied built in controller
• RS-232 or RS-485 output
• Relay contacts for each sample point
• Solenoid valves in 401S are available in 6V, 12V, 24V, and 24VAC/ 115VAC versions.

DESCRIPTION
The 402AS Automatic Sequencer allows a single Nova gas analyzer to be time shared between 3 to 24 sampling points.
This greatly reduces the cost per sampling point for multiple-zone analyses.
The 402AS consists of microprocessor based timing, a solenoid valve for each point and a by-pass pump. The by-pass
pump continuously draws on all sample points so as to keep fresh sample always available for analysis. Unwanted sample points can simply be skipped over. Also, the timer can be stopped on any one point and held there for as long as desired with a simple key press. A small keypad allows easy data entry.
The 402S can also provide a 5V TTL logic output or contact closure for each sample point for sample stream identification in a PLC or computer. Alternatively, the analyzer outputs can be routed through the 402AS and become part of an RS-485 output with sample stream identification. The RS-485 output can then be read on the Terminal Program found in
Microsoft Windows™ or, optionally available, Nova' s own datalogger program for PC.
Another variation is the lower cost 401S sequencer which is available to customers with their own computer or PLC. The 401S contains the sample selecting solenoid valves and the by-pass pump. Activation of the solenoid valves would then be controlled directly by the customer' s computer or PLC. The sequencer can have as many sample points as desired.
For every 6 sample points, another by-pass pump is added to ensure an adequate supply of fresh ample available for analysis. Flow meters are provided for each incoming sample line in either version.

MODELS
• Model 402AS-XX-YY - Autosequencer with Nova-provided microprocessor control
• Model 401S-XX-ZZ - Sequencer using customer-provided control
Where: XX = the number of sample points; YY = cabinet style ( N12 or RM) ; ZZ = voltage for solenoid values
• If purchasing Model 402AS, please specify method of sample stream identification: 5V TTL, contact closure, or RS-485 output.

SPECIFICATIONS
Method of Detection : No detection; sequences sample streams to ( separately sold) analyzer for detection
Ranges Available : Any between 3-24 samples
Ambient Temperature Range : 32-122° F ( 0-50° C) . Lower temperatures ( -5° F, -20° C) with Cold Weather Package.
Size and Weight : Dimensions will vary depending on enclosure style, number of sample points and options and required
Power : 115VAC 60Hz ( 220VAC 50Hz available)
Output Options : 5V TTL, RS-485, or contact closure