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Gefran 600 OF “Open Frame” Controller

Monday, August 14, 2017 6:34:53 AM America/Los_Angeles

Microprocessor Controller, 48 x 48 (1/16 DIN), dual 4 digit display, 4 keys, Universal Inputs configurable from faceplate
• Accuracy better than 0.2% f.s. under nominal conditions
• Control output: relay, logic, Triac, continuous, digital insulated
• Hot/cold function with selection of cooling fluid
• 3 alarms with completely configurable function
• Analog retransmission output
• Isolated digital input with configurable function
• Auxiliary input for CT (TA) (50mAac)
• Heater break or probe short-circuit alarm
• Self-tuning, Auto-tuning, Soft-start, bump less Man/Auto function
• Double set, set ramp, timed output function
• Optically isolated RS485 serial line. Protocol: GEFRAN CENCAL or MODBUS RTU • Self-diagnosis • Rapid configuration from PC with Winstrum

Accuracy better than 0.2% f.s. under nominal conditions Up to 5 outputs, relay, logic, for control, alarms Hot/cold function with selection of cooling liquid 3 alarms with completely configurable function Software alarm for load interrupt or probe in short circuit (LBA) Self-tuning, Auto-tuning, Soft-start, bump less Man/Auto function Double set, set ramp, timed output function Setpoint programmer functions with 3 configurable steps.

GEFRAN Melt Pressure Transmitters ME Series

Monday, August 14, 2017 6:32:34 AM America/Los_Angeles

Performance Level 'c' - 4...20mA output
The ME Performance Level ‘c’ series of Gefran are
Pressure transmitters for use in high temperature environment.
The main characteristic of this series is the capability of
Measuring temperature of the media up to 752 F (400°C) such as high temperature engineered polymers.

The constructive principle is based on the hydraulic transmission
Of the pressure.
The fluid-filled system assures the temperature stability.
The physical measure is transformed in an electrical measure
by means of the strain-gauge technology.

MAIN FEATURES
• Pressure ranges from:0-250 to 0-30000 psi  / 0-17 to 0-2000 bar
• Accuracy: < ±0.25% FSO (H); < ±0.5% FSO (M)
• Fluid-filled system for temperature stability
• Mercury filling volume:ME0 (30mm3); ME1, ME2, ME3 (40mm3)
• 1/2-20UNF, M18x1.5 standard threads; other types available on request.
• Auto-zero function on board / external option
• Standard diaphragm is 15-5 PH stainless steel with GTP+ coating
• 17-7 PH corrugated diaphragm with GTP+ coating for ranges below 1500 psi -100 bar
   GTP+ (advanced protection) Coating with high resistance against corrosion, abrasion
   and high temperature

AUTOZERO FUNCTION
All signal variations in the absence of pressure can be eliminated by using the Auto-zero function.
This function is activated by closing a magnetic contact located on the transmitter housing.
The procedure is permitted only with pressure at zero

Gefran Impact Series (I) Pressure Transmitter

Wednesday, August 2, 2017 6:42:41 AM America/Los_Angeles

The "IMPACT" (I) series of Gefran are pressure transmitters, without transmission fluid, for using in high temperature environment
(662°F or 350°C).

Medium pressure is transferred directly to the sensitive silicon element through a thick diaphragm.

The micro structure includes the measurement membrane and piezo resistors.

Strain is transduced by a micro-machined silicon structure (MEMS). The operating principle is piezo resistive.

The minimum deflection required by the sensitive element makes it possible to use very robust mechanics.

The process contact membrane can be up to 15 times thicker than the membrane used in traditional Melt sensors.

The Impact (I) series is the right choice for Mercury free, and for absolute absence of filling fluid, for use in food and medical application.

Superior wear resistance is suitable with filled polymers.
High robustness towards the process: cold starts, multiple installation
Low thermal drift for Zero e Span signal : < 1%FS (68°F- 662°F)
High resistance to withstand to dynamic pressure

Attributes

Performance Level "C" compliance
Auto zero function on board / external option

Pressure ranges: 0-1500 to 0-15000 psi/0-100 to 0-1000 bar
Accuracy: < ±0.25% FSO (H); < ±0.5% FSO (M)
Standard threading 1/2-20UNF, M18x1.5; with other versions on request
Other types of diaphragms are available on request too
15-5 PH stainless steel diaphragm GTP coated

This power controller is a Thyristor-type power solid state relay designed to control a 3-phase asynchronous motor in two directions.

There are two control signals and an internal logic that permits selection of only one direction at a time.

A red LED indicates reverse, and a green LED indicates forward.

The power Thyristor are protected against excessive voltage fluctuation by RC snubbers and varistors incorporated in the unit.

It is advisable to install three high-speed fuses between the 3-phase line and the controller.

WARNING: The GI models must be used in conjunction with an appropriate heatsink (Accessory). Installation must precisely observe the warnings contained in the installation notes.

Attributes

Solid state inverter for forward/reverse control of three-phase motors up to 4KW

Solid state contactor for reverse/forward control for 3-phase motors up to
4 KW - 400 Vac
Nominal voltage max.: 400 VAC
Non-repetitive voltage up to 900 VP
Isolation (input/output) 4000 VAC
Input control: 5…32 VDC
IP20 direct contact protection
Integrated voltage transient protection
LED indication of motor direction
In Conformity with EN60947-4-3 and UL508

Gefran GD/40 - 40 Amp solid state relays are highly reliable

Thursday, July 20, 2017 12:46:31 AM America/Los_Angeles

These are zero crossing, AC solid state relay with logic signal control, built in heat sink with heater break diagnostics (Hb function), adjustable setpoint and selectable current scale with junction overheat protection available as an option. Click here to view the two options

The GD series of solid state relays are offered with 40A currents ratings and voltage 480 VAC, and VDC input control signal.

Voltage transistors are protected by MOV (varistor).

Thanks to their high performance, they are appropriate for very short switching times, with millions of operations without wear on components.
The GD series of relays must be used with an appropriate heatsink.
Non-repetitive voltage: 1200 Vp
Rated voltage: up to 530VCArms
Input control range: 5…30 VDC
Optical isolation: 4000Vrms (input/output)
Built-in HB diagnostics (partial heater break, junction in short circuit)
Overheat protection (optional)
2-color control signal LED in input/alarm state
On-board MOV (varistor)

They are specifically designed for melt pressure measurement. They are available only to be used in large scale fixed installations or in large scale stationary industrial applications like extruders, or for B2B equipment laboratory for Research and Development. (See informative note RoHS II).

Description:
The MX4 is flange Mounting
Pressure ranges: 0-360 to 0-30000psi 0-25 to 0-2000bar.
Extensometric measurement principle with Wheatstone bridge
(This is a device to measure changes in the length of an object. It is useful for stress-strain measurements and tensile tests)
Precision: < ±0.25% FSO (H); < ±0.5% FSO (M)
Calibration signal 80% FSO internally generated
Standard diaphragm is 15-5 PH stainless steel with GTP coating
17-7 PH corrugated diaphragm with GTP coating for ranges below 1500 psi  or 100 bar

Click here to build your MX4

>3.33 mV/V output signal.
>Pressure ranges from 0-35 to 0-2000 bar / 0-500 to 0-30000 psi
> Fluid-filled system for temperature stability
> Accuracy: <±0.25% FSO (H); <±0.5% FSO (M)

The main characteristic of this series is the capability to read temperature of the media up to 400°C.
The constructive principle is based on the hydraulic transmission of the pressure. The fluid-filled system assures the temperature stability.

The physical measure is transformed in an electrical measure by means the strain-gauge technology.
Description

Pressure ranges from: 0-500 to 0-30000 psi / 0-35 to 0-2000 bar
Strain gage Wheatstone bridge
Accuracy: <±0.5% FSO (M) <±0.25% FSO (H);
Fluid-filled system for temperature stability
Grade of protection: IP65 (6-pin connector version)
Standard diaphragm is 15-5 PH stainless steel with GTP coating
Internally generated 80% calibration signal (R-Cal)
1/2-20 UNF, M18x1.5 standard threads; other types available on request
Fully interchangeable with all existing brands
17-7 PH corrugated diaphragm with GTP coating for ranges below 100 bar-1500 psi
Other diaphragms available on request

Gefran 400-401 Microprocessor controller

Wednesday, July 5, 2017 3:45:20 AM America/Los_Angeles

Single display controller Microprocessor controller, format 48x48 (1/16 DIN) manufactured using SMT.

This instruments provides a complete operator interface, protected by a Lexan® membrane that ensures level IP65 faceplate protection.

The 400 model has 4 keys, 4 digits display, and 2 indicating LED's 3 indicating LED's
For 401 model a further 3 LED's bar-graph.

The main input for the process variable is universal and provides the possibility to connect many types of input sensor:

Thermistor PTC
Thermocouple type J, K, R, S, T, B, E, N
Resistance thermometer PT100 3-wires
Linear inputs 0...60mV, 12...60mV, 0...20mA, 4...20mA, 0...10V, 2...10V

The type of input is selected from the faceplate keys and no external adapter or shunts are necessary.

Model 401 can have an auxiliary input for a 50mAac current transformer to monitor the load current.

It is also possible to set an alarm point related to the current transformer input in order to check eventual load malfunction.

Both instruments have 2 (3 for 401 model) relay (5A/250Vac, cosφ=1) or static (10Vdc/30mA) outputs with Heat, Cool or Heat/Cool not overlapping and/or alarm function.

All the programming procedures of the instruments are facilitated by the grouping of the parameters in function blocks (CFG for the control parameters, “Inp” for the inputs, “Out” for the outputs, etc.) and by the possibility of selecting a simplified menu for entering the most frequently used parameters.

To simplify the configuration even further, a programming kit is available for PC, which includes a menu driven configuration program for Windows and the necessary cable to connect the instrument.

Password protection can be used to restrict the levels of editing and displaying the configuration parameters.

Gefran has a very large selections of solid state relays (SSRs)!

Thursday, June 22, 2017 3:43:24 AM America/Los_Angeles

Below are some of the GQ Series, which are known as hockey pucks.



Zero-voltage switching. Current range: 15A to 90A

  • -  Alternating current solid state relay
  • -  Zero crossing switching
  • -  Non-repetitive voltage: up to 1600Vp
  • -  Nominal Voltage: up to 600VCAms
  • -  Copper/semiconductor coupling technology
  • -  10, 25, 50, and 90 Arms nominal current
  • -  Control voltage:  3...32Vcc and 20...260Vac/Vcc with connector
  • -  Isolation (input-output) 4000Vrms
  • -  Red LED drive active signal
  • -  Internal MOV (optional)

Plus there’s Gefran GTS Series Solid State Relays (SSRs) with built in heat sinks as below:



Current range: 15 A to 120A
Zero-voltage switching

  • - Versions with TRIAC and with double SCR in antiparallel
  • - Input control from logic signal
  • - Switching at voltage zero crossing
  • - MOV protections (varistor)
  • - LED power on indicator
  • - Fastening to DIN bar (standard); fastening to panel (optional)

If you need technical help selecting a solid state relay for your application, give us a call 800-849-5655 or click here to send us a note.

Gefran M92 Melt Pressure Monitoring Packages

Thursday, June 22, 2017 3:34:15 AM America/Los_Angeles

The M92 is a melt pressure and temperature monitoring system which comes complete with the following items:

  • -   M32-6-M-xxxx-1-4-D-000 (melt pressure transducer with type “J” thermocouple)
  • -   40TB-10-RR-R-2-0-1 (1/4 DIN pressure and temperature indicator)
  • -   C08WLS (25 foot 6-pin cable)
  • -   SF18 (mounting bracket)

The M92 is an excellent solution for those who wish to have the accuracy and stability of a transducer and digital indicator at a great price on line.

The Gefran Indicator details:

  • -  Economically priced
  • -  Displays pressure in a 4-digit LED display
  • -  Auto span
  • -  Auto zero
  • -  Auto calibration
  • -  Touch-type keypad
  • -  2 alarms with adjustable setpoint
  • -  Filter for digit stabilization
  • -  Built-in strain gage bridge excitation
  • -  Coded access for user lockout

The Gefran Transducer details:

  • -  Fluid-filled system for temperature stability
  • -  Better than ±0.50% accuracy
  • -  80% output signal for easy calibration
  • -  15-5 PH stainless steel diaphragm with GTP coating

We’re here too for technical assistance, so just call 800-849-5655 or send us a note.

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