Process Sensors (Europe) Limited
Process Sensors

 MCT Accessories

Please select from our list of accessories to read further details.

Calibration Check Standard (Moisture only)
Purpose: Verification of instrument stability over time.
Description: A canister containing 2 standards which simulate a low and a high moisture absorption.
Connection: Align 2 fixed pins on light shroud with holes in the canister then lock in position by tightening thumbscrew.
Use: As a stability check – With the MCT set to the same CAL channel as used to measure the product, note down the MCT reading from the low side of the cannister.  Undo the thumbscrew holding the canister in position, invert it, then retighten.  Note the MCT reading again.

Future readings, taken at two weekly or monthly intervals should lie within +/- 0.2* of the initial recorded value, if this isn't the case, the gauge may not be functioning optimally. 

* with a span of 25. higher spans will give rise to larger deviations from the initial calcheck readings.

Note Cal Checks can also be used for an approximate calibration transfer, please see Installation Manual for details.

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Water/Air Cooling Panel
Purpose: To lower internal air temperature when gauge is located in ambient conditions > 50°C/120°F
Description: An integrated panel mounted to the bottom face of all cast aluminium enclosures which may be used with air or water coolant.
Connection: air cooling - connect the Vortec cooling element to the inlet port. For runs up to 3m, connect  3mm (0.125") pipe or 6mm (0.25)" hose to the inlet. Supply 80 psig (5.5 bar) clean filtered air to the cooler. The generator within the vortex tube is rated for 10 scfm, please ensure the compressor used can generate these volumes.
Water cooling – Connect a 6mm (0.25") tube to the inlet and outlet connectors on the cooling panel. Supply cold water (20-27°C/65-80°F) at a flow rate of 0.3L/min.
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High Temperature Enclosure

High Temperature Enclosure

High Temperature Enclosure
Purpose: To lower internal air temperature when gauge is located in a high temperature environment.
Description: A two part stainless steel enclosure providing easy access to the gauge. The enclosure is air cooled using a vortec cooler.
Connection: The gauge is bolted to the back panel such that it is suspended within the enclosure



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Snorkel Sampler
Purpose: To provide a means of measuring powdered and granular product when there is discontinuous flow, or insufficient product density to make a measurement by normal means.
Description: A stainless steel tube terminating in a glass viewing window and sample cup.
Connection: The Sampler is bolted to the spud, which is in turn welded to the duct around the hole which is cut at the installation location. Note the sensor must be supported by a bracket, not left to hang from the Powder sampler!
Use: A time sequence is set up for the following events: Purge (sample is blown out of the sample cup) Fill (sample fills sample cup)
Sample (measurement duration)
Delay (delay between moisture readout and start of a new cycle)
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Vortex Cooler
Purpose: To provide cool pressurised air to the gauge cooling panel.
Description: A device that converts filtered, compressed clean air into 2 airstreams; hot(up to 250°F) and cold( down to -50°F)
Connection: Cold air outlet is connected to the gauge inlet connector via hose (0.25" diameter) or pipe ( 0.125" diameter)
Use: Install correct diameter tubing in order that back pressure does not exceed the stated limit, and ensure that the correct inlet pressure, 80 psig (5.5bar) and volume is used in order to gain maximum efficiency.

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Heat Blanket
Purpose: To provide heating to the gauge Description: A device that can heat the internal temperature of the gauge should this be necessary owing to installation in sub- zero temperatures.
Connection: connection is via an optional “alarm board” which is installed along with the blanket.
Use: The blanket controls the internal temperature to within approximately +/- 1 deg of the set point, 35°C.
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Light Tube with Window air purge Diffuser
Purpose: To keep the window and light path free of oil, condensation and particulates
Description: A canister attachment with a bronze sintered interior ( or nickel coated bronze sinter interior)
Connection: Compressed air (2-3 psig<5scfm) is supplied via an air inlet connector, the canister is attached to the gauge with set screws, and surrounds the optical window.
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Glass or Sapphire sight Window Glass or Sapphire sight Window
Purpose: To view product moving within an enclosed chute, fluid bed dryer, or storage bin
Description: A 2” diameter sapphire, or 4” diameter glass window enclosed within a stainless steel flange.
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Sample Probe

Sample Probe
Purpose: The probe enables measurement within a pipe or vertical chute. It is inserted into the mainstream flow so that product continuously flows over the glass or sapphire viewing window.
Description: A stainless steel tube with an angled end containing a glass or sapphire viewing window.
Connection: The flange of the tube mounts directly onto the gauge.

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Explosion proof OI
Purpose: To purge the OI of hazardous vapors, and thus ensure that it is explosion-proof.
Description: Various systems are available depending upon the classification rating of the area in which the gauge, scanner and operator interface are to be installed.
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Product Loss Sensors
Purpose: To detect the absence of product so that measurements are not updated until product reappears under the gauge. Only necessary when product is discontinuous, or there are frequent lulls in the production stream.
Description: One or two photocells attached either side of the light tube, the output from these devices is used to “gate” the sensor.
Connection: These are powered through the main board in the gauge, and provide a contact closure input to the input/output board
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Base and Stand Base and Stand
Purpose: To support the gauge if it is to be used off-line, at-line or for demonstrations
Description: Includes a base plate, an upright metal tube, clamp and additional perpendicular tube with a mounting bracket for the gauge
Connection: These are powered through the main board in the gauge, and provide a contact closure input to the input/output board
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Non Contact Product Temperature Sensor
Purpose: To enable measurement of product temperature which may then be used to compensate the moisture reading if desired.
Description: Infrared temperature sensor probe mountable inside, or external to the gauge enclosure. The temperature reading is displayed on the O.I and can be output as an analog and/or digital signal.
Connection: The sensor is powered from the gauge, and is factory installed.





Angle Support Bracket

Purpose: To support a reflective sample, typically glass, film, paper, etc at an angle to the gauge to eliminate specular (surface) reflections from entering the gauge. 

Description: A pressed steel angled holder with circular "cut-out"  and passive reflector on the bottom surface.

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  Quad Alarm Board

Purpose: To provide up to four constituent alarms; these could be high or low, or a single contact closure when any of the thirteen instrument status warnings are triggered to indicate a fault condition.

Description: A compact alarm board that houses up to four solid state relays, AC or DC.
Connection: attaches to the A1149 mother board within an MCT 360 in a similar way to a network board (see below and bottom left photo)

Anybus Card

Anybus Card
Purpose: To enable the sensor to use different communication protocols to communicate to a host PC.
Description: This board is mountable on the main board and is supplied with an electronic data sheet allowing the user to program the host computer to receive the data required.
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PC Software
Purpose: This PC program allows users to interface with the sensor. It is an alternative to the Operator Interface but offers the added feature of trend plots where it graphs up to 3 constituents’ outputs.
Connection: The software can be accessed through RS232, RS485 or Ethernet.
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