Water Analysis Industry

The Multichannel Stream Selectors are a range of highly efficient Digital Logic Sequencers designed to direct multiple streams to the Analyzer in analytical applications. They perform sequencing logic and control the selection of up to six streams, using relay outputs that can be synchronized by external pulses or timers. The instruments feature a bright OLED display (20 characters x 4 lines) for easy monitoring of process status and parameter settings.

With support for 4 to 20 mA DC current signals from the Analyzer, the Stream Selectors offer up to 24 potential-free, powered relay contacts with LED indicators for process status. The system’s relay outputs control stream selection, while synchronized input or timer options ensure precise sequencing operations. Additionally, the instruments provide sample-and-hold analog outputs for each channel, with analog retransmission signals for each stream. Operating in both Auto and Manual modes, the STL Sequencers offer clear LED status indicators for stream health, low/high alarms, and process status. Available in DIN standard enclosures, the instruments operate on a universal 90 to 270 V AC mains power supply.

Stream Selectors (Sequencers)

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Features :
Microcontroller based design.
Two / Four / Six Stream options
Password protected
Bright 20-character x Four-line OLED display
Time and Pulse mode options.
Fully configurable and programmable.
Sample and Hold facility for non-active channels.
Channel Skip feature.
Universal AC Power Supply.
High Noise immunity.
Panel mount installation.

Product Models

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Why you should buy:

2x Streams sequencing
20x4 OLED display
Control logic configurable

2 Channel Stream Selector (Sequencer)

STL-92

Two-Stream operation.
Input Signal Analog 4 to 20 mA DC.
Pulse Input - Digital 12 VDC.
20 character x 4 line bright OLED display.
Scale Range 0000 to 9999 (Selectable).
Response time 100 mS.
Control Outputs For 2 Streams.
2 Analog Outputs, 4-20 mA retransmission signals.
Settable Control Logic, Alarm Set points, Channel Skip.
Power Supply - Universal AC power.
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Why you should buy:

4x Streams sequencing
20x4 OLED display
Control logic configurable

4 Channel Stream Selector (Sequencer)

STL-94

Four-Stream operation.
Input Signal Analog 4 to 20 mA DC.
Pulse Input - Digital 12 VDC.
20 character x 4 line bright OLED display.
Scale Range 0000 to 9999 (Selectable).
Response time 100 mS.
Control Outputs For 4 Streams.
4 Analog Outputs, 4-20 mA retransmission signals.
Settable Control Logic, Alarm Set points, Channel Skip.
Power Supply - Universal AC power.
https://www.ashecontrols.com/wp-content/uploads/2024/01/STL-96.jpg

Why you should buy:

6x Streams sequencing
20x4 OLED display
Control logic configurable

6 Channel Stream Selector (Sequencer)

STL-96

Six-Stream operation.
Input Signal Analog 4 to 20 mA DC.
Pulse Input - Digital 12 VDC.
20 character x 4 line bright OLED display.
Scale Range 0000 to 9999 (Selectable).
Response time 100 mS.
Control Outputs For 6 Streams.
6 Analog Outputs, 4-20 mA retransmission signals.
Settable Control Logic, Alarm Set points, Channel Skip.
Power Supply - Universal AC power.