Gefran 40B-96

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The 40B96 is a Universal Pressure or Temperature Input Indicator with single or dual configurable alarms, as well as optional linear retransmission of displayed Process Variable. At BMS this device is used as meltpressure sensor amlifier and indicator.

1 Sensor Types

Used sensor types:

• DYNA-4-3.5C-15/46 is electrical similar to
  MDA422-1/2-3.5C-15/46
  MDA422-1/2-3.5C-23/46
• DYNA-4-3.5C-15/46-GC8 (with safety maximum pressure output) is electrical similar to
  MDA422-1/2-3.5C-15/46-GC8
  MDA422-1/2-3.5C-23/46-GC8

2 Hardware Connection

Check the Sensor Connection and the drawings: File:Gefran40B-96 Sensor Connection.jpg

3 Operations

File:Gefran40B-96 Explanation Operating Panel.jpg

Scrolling through Menu and Parameters

Press "F" three seconds to step trough the Menu. Press "F" only short to step through the Parameters.

Changing Parameter Value

Use ∇ and Δ to increment and decrement the parameter value. It is not necessary to safe the changed values if you step to an other Parameter this is done automatic. The display switches between the Name of the Parameter and the value.

4 Comissioning/Configuration

Parameter Overview

Information display (IF) Parameters
Parameter	Description	Value
Ud	This parameter shows the software version of the unit	e. g. 3.24
Hd	Hardware configuration of the output if the output is present it is 1	e.g. 01000 Output 1 is present e.g 01100 Out 1&2 are present
H2	Hardware config of the input digit 3 is 5 if the analoginput is present digit 2 is 7 if Digital input is present	e.g 02500

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Configuration (CF) Parameters
Parameter	Set Value	Adjustment range & Description	Default Value
H1	0.5	Hysteresis for trip point 1	-1
H2	0.5	Hysteresis for trip point 2	0

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Input settings (In) Parameters
Parameter	Set Value	Adjustment range & Description	Default Value
t.P	3	Probe type wich is connected 3 is Strain gauge symetrical (+-10mV	0
C.I.	1	Sampling rate 120ms Resolution >14bit	0
Ft	0.5	Digital filter on Input in display in sec on Range [ 0.0 ...20.0]sec	0.1
Fd	0.1	Digital filter on input display on Range [ 0.0 ...9.9]digit	0.5
dP	1	Decimal point 0 => XXXXX 1 =>XXXX.X 2 =>XXX.XX 3 => XX.XXX	16
L.S	0.0	minimum limit of input scale and retransmission analog output	0.0
H.S	350.0	maximum limit of input scale and retransmission analog output	1000.0
oF	0.0	Offset correction of main input	0.0
t.U.	18	Raise key (Δ)funktion access to calibration menu with button Δ only active when sensor signal is displayed	0
t.d.	0	Lower key (∇)funktion	0
L.L	L.S	Lower limit for alarm trip point setting	L.S
H.L	H.S	Upper limit for alarm trip point setting	H.S.

Output Setting (Ou) Parameters
Parameter	Set Value	Adjustment range & Description	Default Value
O.n	2	Number of outputs available	2
1.t	1	Alarm type 0 = direct 1= inverse	0
2.t	64	Alarm type 0 + 64 64 = output for calibration of 6 wire probe (phase2)	0
rE	14	Fault action (definition of state in case of brocken probe) Er, br	0

5 Calibration of the sensor

After the configuration is complete you can calibrate the unit to 0 if no pressure is present (and for the Extrution Area the heaters at production temperature).
For this you can use the User callibration, press Δ 3 sec an enter the menu U.C.

• Set the value to 4 (calibrate a strain-gauge with symmetrical polarization) and press "F"
• if you see "F.1" in the display wait 5 sec and press "F"
• now you should see "F.2" and 280.0 this has to be 80% of the scale of the sensor in this case 350.0bar scale
• if the scale is correct wait 5 sec and press "F"
• "F.3" is now displayed wait 5 sec and press "F" again

6 Calibration of the analog output

After calibrating the sensor you will get to the user calibration menu (U.C). Calibrate the analogue output to 4-20mA:

• Set the value to 1 press "F";
• use a multimeter to measure the current of the analog output (must have!)
• Display will show now CL (minimum calibration). Use the up/down button to adjust the current to 4mA. Make sure that the value in pvss is 0.0 bar
• Press "F" for calibrating CH (maximum calibration) and adjust the current to 20mA. Make sure that the value in pvss is 350.0 bar.
• Press "F" again for confirmation