NoShok 755 Operating Manual

b

NOSHOK Series 755 / 756

Digital Pressure Transmitter

Operating Manual

Contents

1 General Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2 Product Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.1 Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.1.1 Pressure Transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.1.2 Control Interface Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.1.3 Display Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.2 Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2.1 Functions of Devices without Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2.2 Functions of Devices with Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.3 Installation Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1 Input-values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2 Output-values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.3 Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.4 Auxilliary Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.5 Ambient Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.6 Process Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.1 Pressure Transmitter Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2 Display Unit Upgrades. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.3 Housing Reconfiguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.4 Electrical Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.5 Pressure Compensation when using a Relative Pressure Sensor . . . . . . . . . . . . 12

5 Operation of Devices without Displays . . . . . . . . . . . . . . . . . . . . . . . 13

5.1 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.2 Key Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.3 Calibration with Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.3.1 Zero Point Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.3.2 Span Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.4 Calibration without Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.4.1 Zero Point Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.4.2 Span Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.5 Integration Time (Dampening) Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.6 Reset to Default. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6 Operation of Devices with Displays. . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.1 The Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.2 Key Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.3 The Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.4 Default Data (factory setting) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.5 Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.5.1 Main Menu: Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.5.2 Main Menu: Calibration of zero and span (with / without pressure) . . . . . . . . . . . 24

6.5.3 Main Menu: Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.5.4 Main Menu: Evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.5.5 Main Menu: Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.5.6 Main Menu: Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7 Diagnostics and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

8 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

9 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

9.1 Dimension Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

9.2 Warranty Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

9.3 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

9.4 Units of Pressure Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

1 General Safety Instructions

Observe the national safety and accident prevention regulations, as well as
the following safety instructions in this operating manual when working with
the hydrostatic pressure transducer.

Any operation not described in the following instructions should not be
used.

If a fault cannot be corrected, the device should be removed from operation
and disposed of to prevent it’s reinstallation.

Repairs should only be performed by the manufacturer. All other repairs or
device modifications are unauthorized.

Other important safety guidelines are located in the individual sections of
this instruction manual.

2 Product Description

The pressure transmitter can be used in level control as well as pressure measure­ment in process applications. A variety of process connections, measurement ranges,
electronic interfaces and display options offer a product for a wide range of applica­tions.

2.1 Construction

The Digitrans consists of a pressure sensor, a control interface unit and a housing
cover with optional display. Different modular configurations are available allowing a
variety of designs.

Direct Mounted

2.1.1 Pressure

The pressure transducer has a piezo-resistive or thinfilm measurement cell depend­ing on the pressure range. The sensors are temperature compensated, and have a
fully welded membrane which is "helium" leak-tested. Pressur e transducers do not
have internal seals.

Pressure transducers further distinguish themselves from one another based on their
ranges and the types of media-touching materials. Different versions of process con­nec

2.1.2 Control Interface Unit

The control interface unit contains the terminal compartment and the keypad used in
programming the device. The four keys must be active (unlocked) before use. The
keypad is locked during normal operation to protect data and functions previously en­tered. The keypad automatically locks after 10 minutes of disuse. The control inter­face converts the sensor’s digital signal into

Page 1

Transducer

tions can be selected for a wide range of application conditions.

a standard 4-20 mA current signal.

2.1.3 Display Unit

CALIBRATION
RANGE

The measured-value indicator has four digits (in a 7-segment display) + symbols. Be­low it, is line 1 (16-segment display) used to display error codes and the signal’s unit
of measure. The unit of measure can be selected by the operator.

Additional information is displayed in lines 2 and 3 (16-segment display). The operator
can enter commands in the programming mode on the display unit by means of menu
driven, clear

-text prompts.

Devices with displays clearly offer a higher number of programming and control inter­face options. These options include alarm status, dampening, signal inversion, tank
linearization and diagnostic messages.

Display units can be easily upgraded (see Section 4.2).

Page 2

2.2 Function

The mode of operation for signal conversion is the same for all versions. The pressure
transducer converts the existing pressure into an electrical signal. Microelectronics
further process the input signal and produce a proportional 4-20 mA standard signal.

The display-version allows programming (parameterization) and the display of ex­panded functions such as inversion, dampening, alarm status and linearization.

2.2.1 Functi

ons of Devices without Displays

• Calibration of zero and span with pressure (see 5.3)

• Calibration of zero and span without pressure (dry adjustment) (see 5.4)

• Setting the dampening / integrating the output signal 0-40 s (see 5.5)

• Reset to manufacturer’s default values (see 5.6)

2.2.2 Functions of Devices with Displays

• Optional units of measure for measured-values (mbar, bar, psi, mA, %, m, mm WS)
(see 6.5.1)

• Temperature and Min/Max values shown in

display (see 6.5.1)

• Nominal pressure range of the sensor shown in display (see 6.5.1)

• Zero and span calibration (with/without pressure) (see 6.5.2)

• Dampening setting / integration of output signal 0-40 s (see 6.5.3)

• Inversion of the output current signal (see 6.5.3)

• Alarm output current value setting (3.6 mA or 21 mA) (see 6.5.3)

• Setting the limits of the output signal (see 6.5.3)

• Offset of the output signal (see 6.5.3)

• Mounting correction of the senso

r

• Measuring circuit test function (see 6.5.4)

• Reset functions (see 6.5.4)

• Password activation (see 6.5.4)

• Selecting the language of the display (see 6.5.5)

• Entry of a table function for the linearization of the output signal (see 6.5.6)

• Entry of medium consistency (see 6.5.6)

Page 3

2.3 Installation Examples

The Digitrans is primarily used to detect the pressure in pipes, plants and tanks.
The pressure is measured using absolute (against a vacuum) or relative (against
external or air pressure) measurement depending on the type of sensor selected.

The Digitrans is also used for hydrostatic pressure measurement of liquids in tanks.

Process Pressure Measurement: Process Pressure Measurement:

Used to measure pressure of liquids Used to measure container press

or gases in pipelines.

ure.

Process Pressure Measurement: Process Pressure Measurement:

Installed behind feed pumps for Installed in front of and behind the filter.

process control or monitoring pump Uses the pressure differential for moni-

in the filter. Both output signals are pr o-

cessed by a PLC or signal converter.

Page 4

trid fo noitalumucca ro noitcnuf eht gnirot.snoitcnuf

007-DS-D 008-DS-D

:lortnoC leveL:lortnoC leveL

(with front flush diaphragm) are measured by two externally mounted

pressure transducers. The two signals

are anylized and the differential is cal-

culated by a PLC or suitable signal con-

verter.

erusserp daeh dna erusserp denibmoC detnuom yllanretxE

Page 5

3 Technical Data

3.1 Input-values

Pressure Range
(Absolute pressure upon request)

3.2 Output-values

Output signal 4 ... 20 mA

Characteristic deviation [% of span]
(linearity, hysteresis, repeatability)

Turn down behavior:
up to 1 : 5
1 : 5 to 1 : 20

Total error (between 50 ... 104°F) better than 0,15 % of full scale

Load RA < (UB–12 V)/23 mA (RA in Ohms & UB in volts)

0 - 5 psi 30 psi

overload limit

0 - 25 psi 150 psi
0 - 100 psi 500 psi
0 - 250 psi 1200 psi
0 - 500 psi 1200 psi
0 - 1500 psi 3000 psi
0 - 3000 psi 7500 psi
0 - 7500 psi 18000 psi
0 - 15000 psi 22000 psi

0.10 at ranges of > 600 psi

<

0.15 at ranges of > 600 psi

<

no characteristic deviation
characteristic deviation * (turn down / 5)

for ranges > 600 psi
better than 0,20 % of full scale
for ranges < 600 psi

Page 6

elbammargorp ,Am12 ro Am 6.3langis tluaF

Integration time 0 s, 1 s, 5 s, 20 s, 40 s, programmable

Adjustment of the span 1 : 20

Integrated lightning protection optional

Zero point adjustment 2.5 ... 99 %

3.3 Construction

Process connections
Series 755

1/2” NPT Male

Series 756

Materials

Housings
Series 755
Series 756

Internal transmission fluid

Electrical connection and protection

method per EN 60 529/ IEC529

Electronic protection methods Reverse polarity, overload and short cir-

3.4 Auxilliary Power

Power supply 12 ... 36 V DC

3.5 Ambient Conditions

Front Flush

R

G1B Ranges: 0 psi to 25 psi
G 1/2 B Ranges: 100 psi to 7500 psi

Durable, fiberglass plastic (PBT)
CrNi-steel 1.4571 and 1.4542
CrNi-steel 1.4571 and O-Ring: NBR
{Viton or EPDM}; {Hastelloy C4}
Standard {Halocarbon oil for oxygen­based designs}; {FDA-approved}

M 20 x 1.5 cable gland with internal ter­minal block (see 4.4)

cuit protection

Ambient temperature – 4 °F ... 158 °F

(– 20 °C ... 70 °C)

Storage temperature – 31 °F ... 176 °F

(– 35 °C ... 80 °C)

Climate class D per DIN IEC 654-1

Environmental protection IP 65 (IP 67 upon request)

EMC per EN 61326,

NAMUR NE 21

Page 7

3.6 Process Conditions

Medium temperatures – 22 °F ... 212 °F ( – 30 °C ... 100 °C)

Max. wash-down temperatures 248 °F (120 °C)

The device should not be subjected to the wash-down temperature for
more than 10 minutes at a time!

Attention

Page 8

4Installation

The device should be installed/operated in accordance with the provisions of ElexV,
the Device Safety Regulation, this operating manual and generally recognized indus­try standards.

4.1 Pressure Transmitter Installation

The pressure transmitter’s diaphram should not come into contact with
hard or sharp objects.

Attention

Installation Using Welding Support:

• Insert a filler piece (a pressure transmitter dummy) into the welding support.

• Weld the support into the container/pipe wall (section-weld process).

• Remove the filler piece.

• Install the pressure transmitter in t

4.2 Display Unit Upgrades

The display unit can be easily upgraded at any time.

• Remove the housing cover and the support cable.

• Attach the display unit’s support cable to the same site.

• Plug the display unit’s connector into the appropriate jack.
The display unit can be mounted at 90° angles.

• Fasten the display unit with screws.

he welding support.

9 egaP

•

All functions are programmable once the pressure transmitter has been upgraded
with a display unit. The adjusted parameters are stored after the display unit is re­moved.

The display unit can be rotated about 300°, so that it can be read under various instal­lation conditions. The housing cover with built-in display can be fastened to the hous­ing at all four side positions.

4.3 Housing Reconfiguration

Rotate the housing of the display unit in order to be able to read the display from
above when the pre

ssure transmitter is installed in an upright position.

• Loosen the 4 internal hexagonal screws.

• Lightly lift off the housing with the display unit.

• Carefully turn the housing 180°.

• Re-tighten the screws.

Page 10

4.4 Electrical Connection

Please observe local installation regulations (Germany: VDE-Standard).
The terminal voltage should not exceed 36 V.

Attention

The supply voltage is between 12 and 36 V DC (12 and 30 V for intrinsic safety de­vices). The power supply and the output signal are conducted across a two-wire cable
(max. 12 mm outer diameter, max. 14 AWG) and connected in accordance with the
pin configuration.

Auxiliary power can be supplied by a power unit, a transmitter power supply or by
means of a PLC connection.

It is suggested to use a design with integrated lightning protection for preventing
damage due to voltag

e spikes.

11 egaP

Terminal Configuration

Ground

L- Positive Output

L+ Positive Supply

I Test circuit; connect the ampere meter between terminals L+ and I

The unit must be properly grounded in order to guarantee EMC resistance.

4.5 Pressure Compensation when using a Relative Pressure Sensor

A Gortex diaphram is used to compensate for the atmospheric pressure under the

IP 65 Protection Method.

A special cable with capillaries for relative pressurization is used for Protection Meth­od IP 67.

Page 12

5 Operation of Devices without Displays

5.1 Preparation

This unit can be programmed before or after installation.

• Connect an ampere meter to the device’s output (between terminals I and L+).

• Note that after each action, a brief oscillation/deflection of 20 mA occurs (verifica­tion of a successful action).

The following device functions can be programmed without a display unit:

• Zero point adjustment with a full or empty container (with/without pressure)

• Span adjustment with a full or empty container (with/without press

• Integration time

• Reset to manufacturer’s defaults

An error signal is caused by a current surge (21 mA or 3.6 mA; 5 sec) when
the zero point or span setting fall outside of the sensor’s nominal pressure
range during adjustments with existing pressure. No values are stored.

The keypad becomes inactive after 10 min. of disuse. All settings will de­fault to previously stored values. Only settings that have been confirmed
with the "OK" function are stored.

5.2 Key Functions

F1 noitcnuF

Basic setting,
store span

Action: upward,
increase value

ure)

2 noitcnu

Basic setting,
store zero point

Exit key or pro­gramming mode

Verification ( store)

Basic setting
Integration time/
dampening (push
simultaneously for
2 sec.)

Action: downward,
decrease value

Activate keys
(push simulta­neously for 2 sec.)

Reset to default
(push simulta­neously for 2 sec.)

31 egaP

5.3 Calibration with Pressure

5.3.1 Zero Point Calibration

Determine if the pressure to be used as the zero point (P 0 %), is present
at the transmitterer diaphragm before calibration.

Calibration Value

Zero point calibration

5.3.2 Span Calibration

Calibration of the measurement range (span).

Ensure that the pressure to be used as the span end-point (P 100 %) is
present at the transmitter diaphragm.

Calibration Value

meas

meas

Page 14

Calibration of span

A change in the zero point has no effect on the calibrated span.
However, if the span end-point is higher than the peak value of the sen­sor’s nominal pressure range, then span end-point is fixed at this peak val­ue and the span is reduced accordingly.
A change in the span setting has no effect on the zero point. The zero point
and span end-point must fall within the sensor’s nominal pressure range.

5.4 Calibration without Pressure

Determine the current reference values for the zero point and the span to be entered
in the transmitter before calibration. This is done as follows:

5.4.1 Zero Point Calibration

• Determine the hydrostatic pressure of the liquid’s surface that meets the zero point.

• Adjust this pressure in proportion to the sensor’s nominal pressure range.

• Multiply this proportion by 16 mA and add 4 mA to the result.

This produces the calculated cu

rrent (value I

), which is entered in the transmitter

calc

and used to programm the zero point (0%).

Example:

A pressure transducer with 0 ... 400 mbar (nominal pressure) needs to be pro­grammed.The liquid’s surface (with a density of 1) is 1 m above the diaphragm at the
zero point producing a pressure of 100 mbar.

Zero point pressure (0%) 100 mbar

------- ----------- ----------- ----------- ----------- ----------- ----------- ----------- ----------- -

I

calc

Sensors nominal pressure 400 mbar

16 mA 4 mA+ 8 mA==

This means that the device’s current value must be set to 8 mA when performing a dry
(empty) calibration.

Calibration Value

... to I

meas

calc

... to I

Calibration of zero point, without display, without pressure

meas

5.4.2 Span Calibration

• Determine the hydros

tatic pressure of the liquid’s surface, which corresponds to the

span end-point.

• Calculate the difference of the pressure value between span end-point and zero
point and divide this difference by the nominal pressure range of the sensor.

• Multiply this proportion by 16 mA and add 4 mA to the result.

This produces the calculated current (value I
and used to program the span end-point (100%).

), which is entered in the transmitter

calc

The measurement range between zero point and span end-point will be stored as
span.

Calibration Value

= I

calc

= I

calc

51 egaP

Example:

A pressure transducer with 0 ... 400 mbar (nominal pressure) is to be programmed.
The liquid’s surface (with a density of 1) is 1 m above the diaphragm at the zero point.
The maximum (span end-point) should be 3 m.

pressure difference (span) (300 mbar -100 mbar)

--------------- --------------------------------- -------------------------- --------------------------------- -------------------- -- -

I

calc

Sensors nominal pressure 400 mbar

16 mA 4 mA+ 12 mA==

This means that the output must be set to 12 mA during programming.

Calculate

Calibration Value

I

calc

Calibration of span, without display, without pressure

Activate

Keypad

(2 s)

=

Access
Function

A change in the zero point has no effect on the adjusted span.
However, if the span end-point is higher than the peak value of the
sensor’s nominal pressure range, then the span end-point is fixed at
this peak value and the span is reduced accordingly.
A change in the span setting has no effect on the zero point. The zero
point and span end-point must fall within the sensor’s nominal pres­sure range.

A test / correction of the zero point is suggested after adjusting the
span in order to maintain optimum accuracy.

Important

Enter
Value

current value increases

... to I

... to I

current value decreases

Confirm
Calibration Value

= I

meas

calc

= I

meas

calc

Page 16

5.5 Integration Time (Dampening) Adjustment

The following integration time settings can be used: 0, 1, 5, 20 and 40 s.

The sensor’s measured values can then be averaged using the adjusted integration
time.

Calibration Value

Calibration of the integration time

5.6 Reset to Default

All default data settings are restored by simultaneously pressing the "zero", "esc" and
the "ok" buttons for 2 seconds (see Para. 6.4).

Calibrated special measurement ranges i. e. 4 bar on a 6 bar transmit­ter can be adjusted by factory pre-setting. A reset to default

Important

the sensor back to its nominal range (i. e. 6 bar). The factory pre-setting
gets lost.

Calibration Value

will reset

71 egaP

6 Operation of Devices with Displays

6.1 The D isplay

In order to program the device, remove the display with a screwdriver and re-attach it
to the housing as shown in the diagram below.

Page 18

6.2 Key Functions

snoitcnuFnottuB

Main Menu Sub-menu Edit Functions

back to the previous
menu option

back to the previous
menu option

increase value

forward to next menu
option

back to value display
without saving

forward to next menu
option

back to main menu
without saving

decrease value

back to the sub-menu
without saving

to the sub-menu to the edit functions save value

activate keypad (push simultaneously; 2 s)

6.3 The Programming Mode

The device can be programmed before or after installation.

The keypad is activated and the device can be programmed by simultaneously press­ing the "esc" and "ok" keys (for 2 sec.). This method is used to access the main
menus. Each main menu has one or more sub-menus and each sub-menu, may have
its own sub-menus.

The keypad becomes inactive after 10 min. of disuse. All settings will de­fault to previously stored values. Only settings that have been confirmed
with the "OK" function are stored.

A change in th

e starting measurement (zero point) has no effect on the
measurement span. Likewise, a change in the span has no effect on the
starting measurement.

An error signal occurs when the zero point or span settings fall outside of
the sensor’s nominal pressure range during calibration with pressure.
Nothing is saved.

Page 19

6.4 Default Data (factory setting)

Display Unit of measurement

(Line 1)
Line 2
Line 3

Output Damping

Inversion
Fault
Limits
I-offset

Service mounting correction not activated

gaugnaL

Ev

aluation linear

density

Calibrated special measurement ranges i. e. 60 psi on a 100 psi transmit­ter can be adjusted by factory pre-setting. A reset to default will reset

Important

the sensor back to its nominal range (i. e. 100 psi). The factory pre-setting
gets lost.

stluafeDnoitcnuF

Pressure display (in bar)

Temperature display (in °C)
Sensor ’s nominal pressure range (in bar)

Am 4oreznoitarbilaC = nom. pressure range start

span 20 mA = nom. pressure range end

0 s
no
21 mA (upscale)

3.8 ... 20.5 mA
0 mA

drowssap evitca ondrowssap ecivreS

hsilgnEe

yes

3

1 g/cm

Page 20

6.5 Main Menu

CALIBRATION
RANGE

DISPLAY
OPTIONS

CALIBRATION
RANGE

OUTPUT
DEFINITION

EVALUATION
FUNCTION

LANGUAGE
OPTIONS

SERVICE
FUNCTIONS

Page 21

6.5.1 Main Menu: Display

The density of a medium must be entered to calculate the correct fill-level
when displaying or adjusting the level in hight units (e.g. mm, m, feet,
inch)(see 6.5.6).

DISPLAY
OPTIONS

UNIT
DISPLAYED

DISPLAY
ROW 2

UNIT
mbar

UNIT
h Pa

ROW 2
MEASURE

ROW 2
BLANK

ROW 2
MIN VALUE

ROW 2
MAX VALUE

See

Second line
shows measured
value in %

Second line
remains empty

ROW 2
MEASUREMENT

ROW 2
TEMPERATURE

ROW 2
MEASUREMENT

ROW 2
TEMPERATURE

Second line
shows minimum
values

TEMPERATURE

TEMPERATURE

Second line
shows maximum
values

TEMPERATURE

TEMPERATURE

Second line
shows minimum

o

C

Temp. in

Second line
shows minimum

o

F

Temp. in

Second line
shows maximum

o

C

Temp. in

Second line
shows maximum

o

Temp. in

F

Page 22

see 2.1.3
Display Unit

ROW 2
TEMPERATURE

ROW 2
CURRENT in mA

ROW 2
P-RANGE

TEMPERATURE

o

C

in

TEMPERATURE

o

F

in

Second line
shows current
current values

Merger of the
sensor’s nominal
pressure range

Second line
shows current
Temp. in

Second line
shows current
Temp. in

o

C

o

F

DISPLAY
ROW 3

ROW 3
MEASURE %

Third line
shows measured
value in %

ROW 3
BLANK

ROW 3
MIN VALUE

ROW 3
MAX VALUE

ROW 3
TEMPERATURE

ROW 3
CURRENT in mA

Third line
remains empty

ROW 3
MEASUREMENT

ROW 3
TEMPERATURE

ROW 3
MEASUREMENT

ROW 3
TEMPERATURE

TEMPERATURE

o

C

in

TEMPERATURE

o

F

in

Third line
shows present
current value

Third line shows
minimum values

TEMPERATURE

o

C

in

TEMPERATURE

o

in

F

Third line shows
maximum values

TEMPERATURE

o

C

in

TEMPERATURE

o

in

F

Third line
shows current

o

C

Temp. in

Third line
shows current

o

F

Temp. in

Third line shows
minimum Temp.

o

in

C

Third line shows
minimum Temp.

o

in

F

Third line shows
maximum Temp.

o

C

in

Third line shows
maximum Temp.

o

F

in

ROW 3
P-RANGE

Merger of the
sensors ’s nominal
pressure range

Page 23

6.5.2 Main Menu: Calibration of zero and span

MAIN MENU

CALIBRATION

CALIBRATE
RANGE

Important

CALIBRATE
WITH PRESSURE

CALIBRATE
WITHOUT
PRESSURE

CALIBRATE
SET ZERO

CALIBRATE
SET SPAN

CALIBRATE
DEFINE ZERO

CALIBRATE
DEFINE SPAN

Adjustment
Zero Point

Adjustment
Span

DEFINE ZERO

DEFINE SPAN

Adjustment zero point via entry
of a pressure value within the
nominal pressure range

Adjustment span via entry
of a pressure value within the
nominal pressure range

A single pressure value is set for the zero point or the span end-point
within the sensor’s nominal pressure range, and assigned to the associ­ated output current signal when making adjustments with existing pres­sure. An error signal occurs when the existing pressure lies outside of
the sensor’s nominal pressure range. The value is not saved in this
case.

A mounting correction should be performed before or after making an
adjustment without pr

essure (dry adjustment) (see 6.5.4). The sensor
must therefore be placed in the reference position for the measurement
(installation site) without pressure on the diaphragm.

Page 24

A mounting correction is unnecessary when making an adjustment with
pressure (wet adjustment). Otherwise, the mounting correction must be
performed before saving the zero point and span end- point.

A test / correction of the zero point is suggested after adjusting the
span in order to maintain optimum accuracy.

Important

6.5.3 Main Menu: Output

MAIN MENU

OUTPUT

OUTPUT
DEFINITION

OUTPUT
INVERSION

OUTPUT
DAMPING

OUTPUT
REVERSION

OUTPUT
ALARM/ERROR

DAMPING

DAMPING

DAMPING

DAMPING

DAMPING

Output is inverted (20-4 mA)
or reverted (4-20 mA)

Damping
40 s active

Damping
20 s active

Damping
5 s active

Damping
1 s active

Damping
0 s active

Alarm at 3.6 mA
(downscale)

Alarm at 21 mA
(upscale)

OUTPUT
LIMITS

OUTPUT
CURRENT OFFSET

LIMITS

LIMITS

Measured value runs between 3.8 and 20.5 mA.
The current holds at the limit when the sensing range
is exceeded.

The current runs between 4 and 20 mA
Alarm condition when limits are reached;

(see 6.5.4).

The output current is combined with an assigned oset, which
can have a maximum of 0.8 mA.

Page 25

6.5.4 Main Menu: Evaluation

MAIN MENU

EVALUATION

The level value and volume value
always be adjusted or veried in
order to store a value pair.

EVALUATION
FUCTIONS

EVALUATION
REF. TABLE

EVALUATION
LINEAR

EVALUATION
DENSITY

REF. POINT
INSERT

REF. POINT
DELETE

TABLE
EDIT

TABLE
ACTIVATE ?

LINEAR
ACTIVATE ?

DENSITY

INSERT

DELETE

DELETE

DELETE

The preset
linearization table
is activated

The linear correlation
between input and
output is set

The density of
the medium is set

INSERT

The selected
tag (value pair)
is deleted

Entry of a new value pair
for the table used in
tank linearization
Entry of the level as a %
Entry of the associated
volume as a %
It is possible to enter up to
30 value pairs
The value pair for 0% (P0)
and 100% (P31) are xed

The upper limit
can only be veri­ed, not altered

Selected tag
(value pair:
level/volume)
is altered

The lower limit
can only be veri­ed, not altered

Enter hight values, which are each assigned a volumetric value of measure for tank
linearization. The linearization and the assignment of the 4 ... 20 mA output signal are
converted into tank volumes using this value pair.

Please check the following if "Wrong Entry" appears in the Evaluation
menu:

• whether or not more than 32 value pairs are entered in the table for tank
linearization (please note: P 0 and P 31 are fixed at 0% and 100% re­spectively

)

• whether or not an existing hight value was tried to be stored again
Please enter correct values.

Page 26

Example:

Level 100 %: 4000 mm

Density: 1 g/cm3

Density correction: 0.9 g/cm3

3

Span end point:

4000 mm 1 g/cm

----- ----------- ----------- ----------- ----------- -



0.9 g/cm

4444 mm=

3

The span (end-point) must be re-calibrated (with or without pressure) to 4000 mm in
order to prevent a 4000 mm level tank from being overfilled.

A change or correction in the density causes a change in the span end­point’s unit of measure (mm, m, inch, feet). The span end-point must be

Important

re-calibrated when changing the medium to be measured (
change in density).

6.5.5 Main Menu: Language

MAIN MENU
LANGUAGE

due to a

LANGUAGE
OPTIONS

LANGUAGE
GERMAN

LANGUAGE
ENGLISH

LANGUAGE
FRENCH

All displays will
be in German

All displays will
be in English

All displays will
be in French

Page 27

6.5.6 Main Menu: Service

MAIN MENU

SERVICE

SERVICE
FUNCTIONS

MOUNTING
CORRECTION

SERVICE
LOOPTEST

SERVICE
DEVICE DATA

SERVICE
TIMER

SERVICE
RESET

Mounting correction is performed;
sensor must be correctly positioned /
mounted and without pressure.

CIRCUIT TEST

RESET
TIMER

RESET
MIN/MAX VALUES

The set current value is
used as the test signal until the
"esc" button is pressed

Hrs.-TOTAL

Hrs.-CALIBRATE

Hrs.-RESET

Hrs.-SENSOR

Number of hours
since the last
Reset to zero.

Min/Max values
are reset.

Total number of
operating hours.

Number of hours
since the last
calibration.

Number of hours
since the last
system Reset.

Number of hours
that sensor was in
operation.

Page 28

SERVICE
PASSWORD

RESET
ALL

RESET
ALARM

PASSWORD
(DE)ACTIVE

All values are reset
to the factory setting
(see 6.4)

Reset the alarm after exceeding
the 4/20 mA limit, necessary when
setting xed limits 4/20 mA FIX (see 6.5.3)

ENTRY

A digital value between
0000 and 9999 is set as
the password.

7 Diagnostics and Service

If the fault cannot be corrected, the device should be taken out of operation
and stored to prevent re-installation.

Attention

Repairs should only be performed by the manufacturer. All other repairs or
alterations are unauthorized.

Attention

The following error messages can appear on devices with displays (see also para.

2.1.3):

E01 Power supply error Test power supply

E03 EEPROM communications error Disconnec

t and reconnect power

supply

E04 Sensor’s temperature range was

exceeded

Return sensor’s temperature to
specified limit s

E06 Sensor recognition Disconnect and reconnect power

supply

E07 General communications error

between the sensor and the con­trol interface unit

Check the connection between
the sensor and the control inter­face unit

8 Disposal

serusaeM noitcerroC rorrErorrEedoC rorrE

rerutcafunam ot ecived nruteRrorre-MOR00E

Important

Please observe local guidlines and regulations when disposing of
devices that are no longer serviceable.
Please turn any recycleable compo

nents in to the appropriate local orga-

nizations.

Page 29

9 Appendix

9.1 Dimension Diagrams

.81” (20.5)

3.72”

61B

( )

1.61”

3.72”

(41)

( )

6.42” (163)

3.39”

( )

Page 30

.71” (18)

G1/2B

1.61”

(mm)

6.06” (154)

(41)

9.2 Warranty Conditions

The pressure transmitter has a 3 year warranty.

Repairs may only be performed by the manufacturer. All other repairs and
device alterations are unauthorized and will void th e warranty.

Attention

9.3 Glossary

Adjustment Allocation of the signal output range (4 ... 20 mA) to the desired

pressure measurement range or level measurement range.

Integration Also dampening: timely communication of the measurement

signal; rise time of the current output signal after a signal surge

Inversion Conversion of the output signal from 4 ... 20 mA to 20 ... 4 mA

Nom. pressure range The operating pressure range for which the sensor was de-

signed

Zero point Start o

f the pressure measurement range

Parameterization Also configuration: programming of the relevant parameters

and the pressure measurement range specific to the application
and measurement location.

Span The programmed pressure measurement range

Span end point The highest pressure value of the programmed measurement

span (end-point of the span)

Tank linearization Determination of approximate volume/pressure ratio values

with non-linear correlatio

ns based on varying container designs

For example, a non-linear correlation exists between the fill lev­el and the volume in spherical containers. During linearization,
the non-linear volume is assigned the 4 ... 20 mA output signal
from a table of values (proximity process by means of up to 32
support points).

Defaults The sensor parameters are pre-programmed by the manufac-

turer

9.4 Units of Pressure Measurement

1 atm (atmospheres) = 760 mm Hg = 760 Torr

=

1.033 kp/cm

2

= 0.1013 MPa

aP 3.331 =rroT 1

1 kp/mm

2

= 9.81 N/mm2 = 9.81 MPa

aPM 1.0 =rab 1

)lacsapotkeH( aPh 1 =rabm 1

1 psi (pound per square inch) = 6.895 · 10

3

Pa

retaw fo teef 5.33=rab 1

Page 31

Notes:

Page 32

Corporate Headquarters

1010 West Bagley Road
Berea, Ohio 44017
Ph: 440.243.0888
Fax: [phone]
E-mail: [e-mail]
Web: www.noshok.com

Catalog NDT-OM02-1