Series 800 Smartstat - Introduction
The Series 800 Smartstat is a microprocessor controlled switch, transmitter and indicator, which enables several instruments to be replaced with a single device. Smartstats are available for the measurement of pressure / differential pressure (P & DP) and temperature (T).
- PRESSURE RANGES FROM -1 TO 1000 BAR
- DP RANGES FROM 15 mBAR TO 4 BAR
- TEMPERATURE RANGES UP TO 400°C
- 24VDC SUPPLY, 4-20mA LOOP POWERED
- STANDARD ELECTRICAL AND I.S. CERTIFIED VERSIONS AVAILABLE
SUBSTANTIAL COST SAVINGS
Replacing a transmitter, switches and a gauge with a single Smartstat reduces equipment costs. Additionally there are reductions in documentation, installation time/ fittings/cabling, and calibration/maintenance costs.
INCREASED ACCURACY/REPEATABILITY
The Smartstat provides greater accuracy and repeatability than a conventional mechanical switch. Very large and very small switching differentials can be achieved without compromising accuracy.
EASE OF CALIBRATION
Pushbutton calibration of switch setpoints and 4-20mA calibration can be carried out on site without additional test equipment or tools.
ADDITIONAL FEATURES
Because the Smartstat is microprocessor based additional features are easily provided through the software including:
- Programmable switching delays - the switching on or off (or both) of the relays may be delayed from 0.5 seconds to 15 minutes. This is particularly useful for preventing unwanted switching due to pressure transients.
- Display of MAXimum and MINimum pressures recorded by the Smartstat.
- Display of transmitter output in mA.
- Reversal of transmitter output 20-4 mA instead of 4-20 mA.
- Square-root extraction to provide 4-20mA output proportional to flow using a DP Smartstat.
- Displayed units of measurement - can be changed by the user as required.
QUALITY ASSURANCE
Designed and manufactured by HNL in accordance with BS EN ISO 9001.
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