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Gilson Engineering Sales, Inc. 

 

November, 2011 4
Articles
Brainchild Digital Recorders
Sensidyn All-in-One Gas Detection System
Azbil High Performance Transmitters
Tech Tip, Why use Temperature Transmitters
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BrainChild Digital Recorders

  Brainchild VR06

The BrainChild line of paperless recorders is available for less than $2,000 for the 6 input unit. These paperless recorders can be setup to accept 6, 12, or 18 analog and/or digital inputs. The inputs can be Milliamp, voltage, thermocouple or RTD. All data values can be stored on a flash card and sent to your control room via Ethernet, RS-485, or RS-232. This allows you to send emails or text messages for alarming purposes.  The lead time is under one week.

View VR06 datasheet

 

We offer a 6.4" high resolution color display (640 x 480 pixels), versus the industry standard of 5" with 320 x 240 pixels. The screen has an infrared detector that will turn the display off and go into screen saver mode after a set amount of time (standard is 10 minutes - this can be changed or turned off). The screen comes back on when movement is sensed, to save energy.  

Brainchild Paperless Recorder Introduction Video
Brainchild Paperless Recorder Introduction Video

 

Sensidyne All-in-One Gas Detection System
   

Sensidyne located in Clearwater FL, has released the new SensAlarmPlus which is a complete gas detection system in one enclosure. The system is fully equipped with the following:

  • Built in strobe / horn
  • High visibility four-digit LED and LCD displays
  • Nema 4X rugged enclosure
  • 4-20 mA output w/optional RS-485, Modbus RTU Protocol
  • 4 SPDT alarm relays
  • Accepts all toxic, combustible and oxygen sensors
  • Sensidyn Sensalarm
    SensAlarmPlus is the ideal gas monitoring solution for Battery rooms, CEMS shelters, labs, gas cylinder storage areas and industrial work areas in which toxic gasses, combustible gasses or oxygen is required to be monitored. At the core of the SensAlarmPlus is an advanced Intelligent Sensor platform with non-volatile memory for all the key application variables and sensor data such as TWA alarms and calibration data. This important sensor data is also time/date stamped for historical logging.

Click for more info on SensAlarmPlus 

 

  Azbil High Performance Transmitters
 

Azbil DP transmitterMany transmitter manufacturer's offer a "standard performance transmitter" in the $1,000 price range and then upgrade the customer to a "high performance transmitter" for $2,000+ if the particular application requires higher accuracy. The Azbil AT9000 series transmitter offers the customer both   a DP or Gauge pressure transmitter with "high performance" specifications but at the "standard" $1,000 price range.         Thus, process plants which use the Azbil transmitters are able to show a significant cost savings per transmitter while at the same time maintain a high level of performance, stability and repeatability in their process.

 

 

          The key Azbil transmitter specifications are:

  • +/- 0.04% of span accuracy
  • +/- 0.01% of full scale accuracy over 10 years
  • 200:1 Turndown ratio
  • <93 msecs response time
  • 30-40% Less cost vs the competitions high performance transmitter
  • Full 5 year warranty on the unit and 10 year warranty on zero drift

  Click for more info on Azbil Pressure Transmitters

 

 

Tech Tip

What are the advantages of using a temperature transmitter over direct wiring a sensor to a PLC or DCS?

 

Cut Wiring Costs

Direct wiring sensors to a control system requires the use of sensor extension wires, which can be three times more than the common shielded copper wire used for a temperature transmitter's 4-20mA signal.

 Temperature transmitter 1A

Protect Signals from Plant Noise

In a direct wiring scheme, the low-level signals generated by an RTD (ohm) or thermocouple (mV) are particularly susceptible to the signal degrading effects of RFI/EMI. A temperature transmitter converts a sensor's low-level signal to a high-level analog signal (typically 4-20mA).

 

Stop Ground Loops

Make sure to choose an isolated transmitter. Input/output/power signal isolation protects against signal inaccuracies caused by ground loops. This is important even when using un-grounded thermocouples because their insulation will eventually break down.

 Temperature transmitter 2

Reduce Hardware Costs

With direct wiring, it is necessary to match the sensor type to input-specific DCS and PLC input cards. Sensor  input-specific  cards usually cost a lot more  per point than a 4-20mA input card.

 

Enhance Accuracy.

A microprocessor based temperature transmitter can be scaled over a wide or narrow temperature range. The accuracy of Thermocouple or RTD input cards is a percentage of the entire temperature span. You won't get very good accuracy if you want to measure a span of 100 deg F on an input card with a range of -200 to 1,500 deg F.

   

Click for more info on Signal Isolators