Martel Electronics 135 User Manual

MODEL 130/135

DC/Frequency Calibrator

User’s Guide

DC/Frequency Calibrator

Model 130

ON
OFF

BAT
CK

CE
ZERO

V

mV

mA

7

4

1

.

8

9

Freq

In
Put

5

6

Ramp

Tot

Out
Put

2

3

Auto

-

0

Ent

Opt

Set
Up

INPUT

V mA Freq

+ +

- -

OUTPUT

Freq mA V

+ +

- -

Beta Model 130 Calibrator

See back cover for Model 135

Table of Contents

Introductions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

General Description . . . . . . . . . . . . . . . . . . . . . . . . . 1

Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Power On Sequence . . . . . . . . . . . . . . . . . . . . . . . . . 3

Input/Output Selection . . . . . . . . . . . . . . . . . . . . . . . 5

Menu Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Battery Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

INC/DEC Key Functions . . . . . . . . . . . . . . . . . . . . . . . . 7

CE/ZERO Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Auto Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Option Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Ramp Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

% Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

SYS Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Using Calibration System . . . . . . . . . . . . . . . . . . . . . . 14

Using Calibration System (manual). . . . . . . . . . . . . . . . . 16

Operator Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Input Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Volts/Millivolts . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Milliamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Totalize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Pressure Module . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Trip Detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Min-Max Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Input Reading in Percent of Scale . . . . . . . . . . . . . . . . . 40

130/135 i

Output Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Volts/Millivolts . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Milliamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Ramp Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Auto Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Loop Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . 46

Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Use of Transmitter Simulator . . . . . . . . . . . . . . . . . . . 49

Using the Totalize Function . . . . . . . . . . . . . . . . . . . . 50

Turbine Meter Calibration . . . . . . . . . . . . . . . . . . . . . 51

Using Ramp and Trip Detect . . . . . . . . . . . . . . . . . . . . 52

mV to Current Converters . . . . . . . . . . . . . . . . . . . . . . 54

Bipolar Frequency Calibration . . . . . . . . . . . . . . . . . . . 55

Pressure Module . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Using Loop Power Supply (LPS) . . . . . . . . . . . . . . . . . . 56

Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Return for Calibration/Repair . . . . . . . . . . . . . . . . . . . 59

Fuse Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Input Specifications . . . . . . . . . . . . . . . . . . . . . . . . 67

Output Specifications . . . . . . . . . . . . . . . . . . . . . . . 68

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Pressure Module Specifications . . . . . . . . . . . . . . . . . . 70

Loop Power Supply Specifications . . . . . . . . . . . . . . . . . 71

ii 130/135

Introduction

General Description

The Model 130/135 DC/Frequency Calibrators are compact, versatile,
functionally styled calibrators. These units are menu driven so
technicians can immediately begin using them to their fullest
capabilities without extensive training.

The Model 130/135 consists of three functional areas:

At the top is an alphanumeric liquid crystal display (LCD) for
simultaneous indication of input and output readings and operator
prompting. The Model 130 uses a 2 line display while the Model 135
uses a 4 line display.

The center section is a tactile membrane keyboard for operator entry.

The lower section contains recessed input/output jacks for connecting
the supplied test leads to the device being calibrated.

There is a feature connector located at the lower end of the
instrument, below the terminals, which is used to connect external

modules to the calibrator to expand the calibrator’s capability. This

connector is also used to calibrate the Model 130/135 calibrator and as
the RS-232 interface to the Calibration System Database.

Introduction 130/135 1

Battery Charging

Note: Before using the Model 130/135 calibrator as a portable unit,
it is necessary to charge the batteries for a minimum of 14 to
16 hours.

CALIBRATOR CHARGER

INPUT: 120VAC 60 HZ
OUTPUT: 5.8VDC 200 mA

For use only with
Beta Calibrators

Units are shipped with the internal batteries in an uncharged state.

The calibrator battery charger is a wall plug-in type (see below) which
connects to a jack on the right-hand side of the instrument. Battery
operation time is 7-8 hours, typically.

2 130/135 Introduction

Operation

CAUTION: The operation of the calibrator may be impaired if a two­ way radio is keyed near the unit.

BETA Calibrator
Last cal 080593

The Model 130/135 DC/Frequency Calibrators are user friendly and
menu driven. A first time user can normally start operating the unit
with little or no instruction. The following instructions are intended to
provide a detailed understanding of the unit.

Power On Sequence

The calibrator is turned on or off by pressing the ON/OFF key. Each
time it is turned on, a series of internal tests and calibrations are
performed. The start up tests provide pass/fail tests of certain internal
circuitry. If the tests determine the unit has an internal failure, a
message is displayed and the unit may or may not allow further
operation. A list of error messages can be found on page 56.

The start up calibrations provide for dynamic recalibration of the
internal calibrator support circuitry by applying the primary reference
voltages to points in the circuitry and recording the readings as
references for further measurements. The start up auto calibration
does not in any way affect the primary calibration done at the factory
or at a field metrology lab.

During the time the start up tests and calibrations are being performed,
certain informational displays are presented to show the status of the
calibrator. The first message displayed will be:

Operation 130/135 3

This indicates the date in MMDDYY format of the last factory

property of
YOUR NAME HERE

Auto Calibration
in progress

Select Select
Input Output

Select Select
Input Output

Apr 26 12:21:18

calibration. The example indicates the Model 130/135 was calibrated
on August 5, 1993.

The next display will be:

This shows the name of the owner of the calibrator. The above display
shows the default setting as the calibrator is shipped. The name can be

changed by selecting “owner” from the setup menu. See page 24 for
details on how to change the owner’s name.

The next display will be:

This display will remain until the internal tests and calibrations are
finished, followed by the main prompt display:

On the Model 135 calibrator four line display, the time and date are
displayed.

This display indicates the calibrator is operating properly and is ready to
accept input or output function selections.

Operation 130/135 4

Input/Output Selection

The Model 130/135 calibrator has a single set of function keys for
controlling both input measurements and output simulation. The input
measurement section of the calibrator is completely isolated from the
output simulation section.

To select input or output functions the INPUT and OUTPUT keys are
used. The calibrator is in output mode following power on.

Pressing the INPUT key places the calibrator in input mode, and
pressing any function key will cause the input to begin measurements
using that function.

Pressing the OUTPUT key places the calibrator in the output mode, and
pressing any function key will cause the output to request the value to
be simulated.

The current mode of the calibrator is indicated by the position of the
blinking cursor. When the calibrator is in input mode, the cursor is on
the leftmost column. When the calibrator is in output mode the cursor
is on the rightmost column.

The calibrator stays in the last mode selected until the mode is changed
by pressing the alternate key. For example, if you press INPUT and then
V, the calibrator will begin measuring volts. If you then press MA, the
input will begin measuring milliamps. If you then press OUTPUT
followed by MA, the output function will respond by requesting the
value for the milliamps.

Changing the input and output mode in no way affects the functions in
operation at the time. Input and output functions operate
simultaneously and without interaction. Input or output mode simply
indicates whether subsequent keystrokes will be applied to the input or
output function.

Operation 130/135 5

Menu Selection

The Model 130/135 calibrator has several functions that require
additional information once the function has been selected. The
additional information is entered by picking from a menu or list of
items. For example, when using the Setup function to control the
Battery Save function, you must select whether Battery Save is to be
enabled or disabled.

A detailed description of the menu is provided with each feature that
has menu choices. The following general information will provide an
understanding of the operation of the menus.

The menus are composed of a title (the top line) and a list of choices
(the bottom line). The title will indicate which parameter you are
entering.

On the bottom line, one of the choices will be blinking. This indicates
the active choice and the one that will be used if you press ENT. To
select a different choice, use the INC and DEC keys. The INC key moves
the choice to the right and the DEC key moves the choice to the left. If
there are more choices than will fit on one line, the additional choices
will scroll into view as you move the selection past the rightmost
choice. When the desired choice is blinking, press ENT. If you find
yourself in a function menu by mistake, pressing CE will cancel the
menu and return the calibrator to the previous or idle state as
appropriate.

Battery Check

The BAT CK key may be pressed at any time to display the current
battery voltage for approximately 1 second before the normal display
returns. The current input and output function are not disturbed by
making a battery check measurement.

The battery voltage should be between 5.3 and 4.6 volts. When the

Operation 130/135 6

voltage falls below 4.65 volts, a warning message is displayed is
displayed approximately every minute. When the voltage falls below

4.5 volts for 1 minute, the calibrator will turn itself off to prevent
damage to the batteries due to possible cell reversal.

INC/DEC key functions

The INC and DEC keys are multifunction in nature. Their use is
explained in detail in each section of the manual where they are used.
The following is intended to give an overall understanding of their use.

With menus:

When a menu is displayed, the INC and DEC keys act as “cursor”

keys to move the highlight to the selection that you wish to make.
In general, the INC key moves the selection to the right or forward,
the DEC key moves the selection to the left or backward. Once you
have selected the correct item, press ENT.

With Input functions:

When the calibrator is displaying an input reading and is in the input
mode, i.e., the INPUT key was last pressed, the INC key causes the
maximum and minimum values to be displayed. See the description
of Min-Max mode for more detailed information.

With Output functions:

When the calibrator is outputting a variable and is in the output
mode, i.e., the OUTPUT key was last pressed, the INC and DEC keys
cause the output to change in one of the following manners. If
ramp is active, the INC or DEC key will start the ramp in the positive
or negative direction. If CalPts are enabled, the INC or DEC key will
select the next or previous calibration point from the user defined
list. If CalPts are not enabled, the output is increased or decreased
by the user defined percent of selected scale.

Operation 130/135 7

CE/ZERO Key

When the calibrator is in the output mode and you press any of the
numeric keys (0-9), the keystrokes will be displayed until you press ENT
and the value is accepted by the output function. If you make a keying
error, the CE key is used to clear the erroneous entry and allow the
correct value to be re-entered. If you press CE a second time before
entering any numeric data, the keypad display mode is canceled and
the calibrator returns to displaying the actual output simulation value.

When the calibrator is in the input mode the CE/ZERO key acts as a zero
adjustment. This is used when the external pressure module is in use,
but can be used on any Input function. When the key is pressed, the

most recent reading is retained as the “zero point” and all subsequent

readings have the zero point subtracted from them prior to being
displayed.

When the calibrator is displaying a menu, the CE/ZERO key acts as a
CANCEL key to terminate the menu and return to the previous function
or the idle state.

Auto Key

The AUTO key is used in conjunction with the calibration points or
Ramp functions to automatically repeat the function. The Model 135

uses the AUTO key with the “System” function. The time interval
between the automatic repeats is determined by Setup option “Pause.”

The time can range from 5 to 10,000 seconds.

The operation of the AUTO key is covered in detail with the Calibration
Points and Ramp functions.

Operation 130/135 8

Option Key

Pressure Module
PSIG 30

Serial No. 2045
LastCal 080593

The OPT key is used to activate the external module that is attached to
the feature connector of the Model 130/135 calibrator. When the OPT
key is pressed for the first time after the calibrator is powered on, the
calibrator reads the configuration and calibration data from the
attached module. If no valid module is attached, or if the attached
module is not supported by the software revision of the calibrator, an
error message will appear. A list of error messages and their meanings
can be found on pages 57-58.

The first time the OPT key is pressed, a series of messages are displayed
listing the configuration of the module.

A typical display is:

The top line shows the module type and the second line gives the
range. The above example is for the 30 PSIG Pressure Module. The
second display is:

The top line shows the serial number of the module and the second line
shows the date of the last calibration. The displays will remain for
approximately 1 second each, and then the appropriate display for the
attached module will appear.

When the OPT key is pressed a subsequent time(s), the calibrator
checks the ID and serial number of the attached module. If these
match the previous values, the module is activated immediately,
bypassing the title and serial number displays.

The OPT key can be pressed when the calibrator is in input or output
mode, depending on the function of the attached external module.

Operation 130/135 9

If the module is not capable of operating in the mode requested, an

MCC #2 ET-101­ 34688-A1-B
SEQ=01 READY

error message will be displayed.

The operation of the Pressure Module can be found on page 31.

Ramp Key

The RAMP key is used to activate the ramp function which is covered in
the next section under Output Functions.

% Key (Model 135 Only)

The % Key allows easy access to the % Error Function. If the % ERR
Function has been set up using the SETUP menus (see page 19), press
the % Key to alternate between the Engineering Unit display and the %
ERR display.

SYS Key (Model 135 Only)

The SYS Key allows the Model 135 Calibrator to be used with a
Calibration System Database. Refer to the Calibration System Database
Instruction Manual for system information. Operation of the calibrator
is covered in this manual.

To enter the System mode of operation, press the SYS Key. The display
will show the tag number of an instrument previously loaded into its
memory on the top two lines of the display. Additionally, its sequence
in the group previously loaded from 01 to 28, and whether or not it has
been calibrated, is also indicated.

Operation 130/135 10

If no tags have been entered, the display will indicate:

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

- - - - - - - - - - - - - - - - - ­ SEQ=01 EMPTY

MCC#2 ET-101­34688-A1-B
REVIEW TEST
CLEAR ALL DATA

MA VOLTS
+4.000 +1.000
AUTO TO START
CE TO ABORT

If calibration is complete, the display will indicate “Pass” or “Fail”
instead of “Ready”.

Pressing the INC/DEC key will allow the user to scroll through the tag
list or, enter the sequence number, if known, to go directly to the
desired tag. Press SYS to exit the system mode; to continue, press ENT
when the desired instrument tag is displayed.

The selected tag will be displayed on the top two lines. The third line
gives the user the option to review the test points for the selected
instrument or proceed to the test. Pressing the INC/DEC key to cause
the desired menu to flash, then pressing ENT will advance the calibrator
to the next step.

Pressing CE will put the calibrator back to the beginning of the
sequence in all cases.

If “TEST” is selected and the ENT key is pressed, the calibrator will

automatically select the proper input and output mode for the
instrument tag selected and provide the proper output for the first
calibration point. Additionally, the operator will be prompted to press
AUTO to start the test or press CE to abort.

Operation 130/135 11

If “Review” was selected, the test points would be displayed.

INPUT OUTPUT
+4.000 +1.000
+6.000 +2.000
+8.000 +3.000

MA VOLTS
+4.000 +1.000
TESTING CALPT 01
AS FOUND

TEST COMPLETE

UNIT FAILED
REVIEW ADJUST
RETEST DONE

Press the INC/DEC keys to scroll through additional points. Press ENT or
CE to return to the previous menu.

Clear All Data allows “As Found” and “As Left” data previously stored to

be cleared. This option is only allowed if enabled by the Calibration
System. If this option is not enabled and is selected, the display will

indicate “Option Not Allowed”.

If AUTO was pressed to start the “As Found” test, the display will

indicate:

Once the test is completed, the display will indicate “Test Complete” on
the top line, whether the unit passed or failed on the second line and,
give the operator four choices on lines three and four - Review, Adjust,
Retest, Done. Selecting “Review” allows the operator to review the test

data, selecting “Retest” allows the test to be run again, selecting
“Done” takes the calibrator to the final sequence, selecting “Adjust”

allows the operator to adjust the instrument under test.

Selecting “Adjust” allows the operator to perform a normal calibration

procedure on the instrument under test. Pressing the INC/DEC key will

Operation 130/135 12

step the calibrator output through the calibration points.

MA VOLTS
+4.000 +1.000
ADJUST UNIT
AUTO WHEN DONE

MA VOLTS
+4.000 +1.000
AUTO TO START
CE TO ABORT

MA VOLTS
+4.000 +1.000
TESTING CALPT 01
AS LEFT

TEST COMPLETE
UNIT PASSED
REVIEW DONE

Once the desired results are achieved, press AUTO as indicated on the
calibrator display.

When “AUTO” is pressed, the calibrator again sets itself at the first cal
point and prompts the operator to press AUTO again to start the “As
Left” calibration procedure.

Pressing CE will take the calibrator back to the Test Complete menu.

If AUTO is pressed, the calibrator proceeds with the “As Left”

calibration.

When the test is finished, the calibrator will display “Test Complete,
Unit Passed or Failed”, and give the operator the option to “Review”
data or select “Done”.

Operation 130/135 13

If “Done” is selected, the calibrator will prompt “Test Finished” and the

TEST FINISHED
ENTER TECH ID#

???????

UNIT FINAL STATUS
NO ACTION ADJUSTED
REPLACED

Invalid test
Config detected.
No Pressure

operator will be prompted to enter his/her ID number.

The operator will press ENT and then be prompted to indicate “Unit
Final Status” and choose “Adjusted”, “Replaced”, or “No Action”.

Select the desired menu and press ENT.

At this time, the calibrator returns to the beginning mode and a new
tag number can be selected for the next calibration.

The calibrator records the time and date that Unit Final Status is
entered. Additionally, the number of calibration cycles required to
achieve a “Unit Passed” indication is also recorded.

Pressure Calibrations using
Calibration System

If the instrument being calibrated has pressure as either an input or
output, a Pressure Module with the appropriate range should be
attached to the calibrator before starting the test. If a Pressure Module
is not attached, an error message will be displayed.

Press any key to return to the Instrument Select Menu.

Operation 130/135 14

Note: It is the responsibility of the user to ensure that the Pressure
Module being used is the proper range for the calibration
being performed.

mA PSI
+ 4.000 +0.0000
Apply +1.0000
Press ENT Low

If the instrument being calibrated has a pressure output, no special
action is required during the automatic test. The pressure will be
monitored as the input function on the calibrator and will be recorded
automatically at each calibration point.

If the instrument being calibrated has a pressure input, the pressure
will have to be generated manually by the user. The pressure will be
monitored as the output function on the calibrator and will be recorded
after the user has set the pressure to within the prescribed limits and
then pressed the ENT key.

The following shows the main screen while performing a pressure
calibration requiring an externally generated pressure.

Line two gives the actual pressure being measured. Line three is
the target pressure for this cal point. Line four indicates that the

pressure is too low (or too high if display shows “HIGH” or within
tolerance if display reads “READY”.

When LOW or HIGH is being displayed, the applied pressure is not
within the tolerance specified in the Calibration Database and the
calibrator will not accept it. You may press CE to cancel the calibration
attempt if you are not able to generate the requested pressure.

Operation 130/135 15

When READY is being displayed, the applied pressure is within

Man_GPM mV
+10.000
Testing Calpt 01
As Found

Man_GPM mV
??????? +10.000
Enter Input Value

tolerance. You should wait until the actual pressure readings stabilize
and then press the ENT key. The calibrator will then store the readings
and step to the next calibration point.

Manual Calibration using
Calibration System

If the instrument being calibrated requires an input that cannot be
generated by the calibrator or if the output of the instrument cannot be
read by the calibrator, then the Calibration Database will indicate that
the instrument has a Manual input or output.

If the output of the instrument cannot be read by the calibrator, the
calibrator will be configured for Manual input. An example would be a
digital recorder with a mV input and a chart display as an output. The
calibrator will set its output to the required value, pause for the
number of seconds specified in the Calibration Database, and then
prompt the user to enter the indicated value in the engineering units
requested.

The display above is shown while the calibrator is setting its output and
waiting for the instrument to stabilize.

The display shown above is the calibrator prompting the user to enter
the value shown on the instrument’s digital indicator.

The three characters following Man_ (GPM, in this example) are the
engineering units expected as configured in the Calibration Database.

Operation 130/135 16

If the input to the instrument cannot be generated by the calibrator,

mA Man_GPM
+4.000 5000
Set Ext Output
Press Ent

mA Man_GPM
+4.000 10000
Set Ext Output
Enter Value

the calibrator will be configured for Manual output. An example might
be a magnetic flow meter that requires a manufacturer specific device
to simulate a flow into its input.

There is an additional feature associated with Manual outputs. The
Calibration Database can be configured to require that the user
generate the exact value specified, or that the user generate
approximately the values specified and then enter the exact value that
was set.

If the calibration procedure specifies exact values, the calibrator will
prompt the user to set the external calibration device to the desired
value and press ENT when ready. The calibrator will then store its input
reading and step to the next calibration point.

The display shown above is instructing the user to set the external
calibration device to simulate a flow of 5,000 gallons per minute and
then press ENT.

If calibration procedure specifies approximate values, the calibrator will
prompt the user to set the external calibration device to the desired
value and then enter the exact value that was set. The calibrator will
then store its input reading and step to the next calibration point.

The display above is instructing the user to set the external calibration
device to simulate a flow of approximately 10,000 gallons per minute.
If you are able to set exactly 10,000 GPM, then you enter 10000 on the
Operation 130/135 17

numeric keypad and then press ENT. If the closest you could get to the
desired value was 9,950 GPM, you would enter this value and press
ENT.

It is possible for an instrument to be configured for both Manual input
and Manual output. An example might be a glass thermometer that is
to be calibrated in a temperature bath. In this case the calibrator will
first prompt for the user to set the external output and then prompt
the user to enter the external input.

Operation 130/135 18

Operator Setup

1-LCD Vu 2-BatSav
3-IncDec 4-Owner

1-Pause 2-MfgTst
3-Save 4-InpRdg

1-Damp 2-%err

1-LCD Vu 2-BatSav
3-IncDec 4-Owner
5-Pause 6-SerItf
7-Save 8-%err

1-Damp 2-InpRdg

The SETUP key activates the operator setup mode. This allows the
operator to preset several convenience features to customize the
calibrator for a particular user or application. The SETUP can be
activated any time except when the calibrator is displaying a menu.
When the SETUP key is pressed, a screen is displayed on the Model 130
showing the first 4 options available.

If the INC or DEC keys are pressed, additional groups of setup options
are displayed.

The Model 135 displays 8 setup options on each screen.

If INC or DEC keys are pressed, additional groups of setup options are
displayed.

To select one of the options, press the number key corresponding to
the option you desire (you need not press ENT). To exit from setup
mode, press SETUP a second time. The individual options are described
below.

Operation 130/135 19

LCD Vu (Adjust LCD viewing angle)

Viewing Angle

sn 1355 uc 0300

Battery Save

Disable Enable

Note: All calibrators are shipped from the factory with battery save
enabled.

The LCD viewing angle or contrast may be adjusted electronically for
optimum viewing under various conditions. There are 8 levels to the
contrast adjustment. Press the INC or DEC key to select the adjustment
that is optimum for your conditions.

The second line of the viewing angle screen displays additional useful
information. The left side displays the serial number of the unit and
should agree with the serial number label on the case. The right side
displays the revision level of the internal software (microcode).

BatSav (Battery save)

The battery save feature will turn the calibrator off if there is no
keyboard activity for 10 minutes. This prevents running the batteries
down if the unit is accidentally turned on, or if the unit is left
unattended. Battery save should be enabled unless you have a specific
application where the calibrator needs to run attended for greater than
10 minutes.

Select either Disable or Enable using the INC/DEC keys and press the
ENT key.

IncDec (Program functions of the INC/DEC keys)

When the calibrator is in the output mode and a valid output function is
active, pressing INC or DEC key will cause the output to change by a
predetermined amount. This amount can be either a percentage of the

Operation 130/135 20

current scale or a user defined calibration point from a predefined list

IncDec Key Funct
CalPts Percent

enter Cal Pts
CE when done

cal point #1
% of scale .00

of calibration points. This feature allows the user to program the
INC/DEC keys to function in one of two modes: user defined calibration
points, or percent of scale. Press the 3 key to program or setup the
INC/DEC key functions. The first menu allows you to select Cal Points
or Percent. The display will prompt with following:

To setup for the cal points function, highlight CalPts and press ENT. To
setup for the Percent function, highlight Percent and press ENT.

Calibration Points

The Calibration Points function allows storage of up to 10 calibration
values. The values are stored as a percent of a user defined scale. First
enter the percentage values, then enter the scale.

The next screen will be an information screen to remind you to enter as
many calibration points as needed (max 10). Press CE when all of the
cal points have been entered.

Press ENT to begin entering new calibration points. Points are entered
as a percent of scale in the range of 0.00% to 150.00%. Press CE when
all of the cal points have been entered.

Enter the new values for each calibration point up to a total of 10
points. If you press ENT without entering a value, the previous value,
as shown, is retained. If you make a keying error, you may press CE to
clear the entry and allow re-entry. When you have entered your final
calibration point press the CE key before entering the next value. After

Operation 130/135 21

the last calibration point is entered, the next screen will be:

Zero point
value ???????

Full scale point
value ???????

Enter the value in engineering units for the function you will be using
that represents the zero value for the calibration points function.

After entering the zero point, the next screen will be:

Enter the value in engineering units for the function you will be using
that represents the full scale value for the calibration points function.
After entering the full scale point, you will return to the overall Setup
menu.

Calibration points examples

Example #1: Programming a 5 point calibration for a 4-20mA loop. The
calibration points entered would be:

cal point #1 0 (%)
cal point #2 25 (%)
cal point #3 50 (%)
cal point #4 75 (%)
cal point #5 100 (%)
zero point 4 (mA)
full scale point 20 (mA)

Operation 130/135 22

Example #2: Programming a 3 point calibration for a 1-5 Volt input to a

V, mV, mA, Freq
Percent 10.00

recorder. The calibration points entered would be:

cal point #1 0 (%)
cal point #2 50 (%)
cal point #3 100 (%)
zero point 1 (volts)
full scale point 5 (volts)

Utilizing Calibration Points

Once calibration points have been enabled from the Setup IncDec key
function, they are activated by simply pressing the INC or DEC key after
selecting the appropriate output function. The INC key steps forward
through the calibration points list, and the DEC key steps backwards. If
you attempt to step beyond the limits, the list will wrap around from
the last to first when incrementing, or the first to last when
decrementing. To automatically step through the selected calibration
points, press the AUTO Key. The steps will continue until the AUTO Key
is pressed again.

Percent of Scale

The percent of scale function allows the user to specify a fixed
percentage that the output will change each time the INC or DEC key is
pressed. The range of values for percent are .01% to 100.00%.

The top line of the display lists the functions affected by the
increase/decrease value. The second line shows the value as a percent
of full scale. The current value is also shown.

Enter a new value or just press ENT to retain the current value.

Operation 130/135 23

Owner (Enter owner’s name)

When a new calibrator is received, the owner should enter the
desired owner name and file the access code in a safe place for
future reference. DO NOT keep the access code with the calibrator.

_YOUR_NAME_HERE_

_NEW_OWNER_NAME_
ENT+OK CE+cancel

The Model 130/135 calibrator contains a security feature that allows
the owner to enter a name or other identifying number into the

calibrator’s non-volatile memory. The owner’s name cannot be
changed unless the operator knows the unit’s access code. The access

code is unique to each calibrator and is printed on the individual
calibration sheet that is shipped with each calibrator.

When the owner setup is selected, the operator is prompted to enter
the access code. Enter the access code from the calibration sheet and
press ENT. If the incorrect code is entered, an error message is
displayed and the calibrator returns to the setup menu. If the correct
code is entered, the next display will be the current owner on the top
line with the leftmost character blinking.

The name of the owner can be any alphanumeric combination of up to
16 characters. Different characters are selected by pressing the INC or
DEC keys to scroll forward or backward through the alphabet. The
space character is represented by the underscore in this mode. If held
down, the INC and DEC keys will auto repeat to allow fast advancing
through the alphabet. Once the correct character is displayed in the
current position, press ENT to advance to the next character position.

You may back up to a previous position by pressing the CE key. After
you have entered the last character and pressed ENT, you will be
prompted to press ENT if everything is OK, or press CE to cancel the
change.

Operation 130/135 24

Press ENT if you are satisfied with the entry, or CE to cancel. If you

seconds btwn cal
points 10

Serial Intf Mode
BetaCal SYS

press CE, the owner’s name will not be changed. If you press ENT, a

momentary wait message will appear while the new information is
written into the non-volatile memory.

Pause (Set pause time for auto CalPts and Ramp)

The AUTO key will cause the Calibration Points or Ramp program to
repeat continuously without intervention. This setup option allows you
to specify how long the calibrator will pause between Calibration Points
or Ramps when the AUTO key is pressed.

Enter the dwell time in seconds to pause between each cal point or at
the end of each ramp cycle, and press ENT.

SerItf (Serial Interface) (Model 135 Only)

This enables the feature port on the bottom of the Model 135 to be
configured to calibrate the calibrator using the BetaCal Software or for
connection to the Calibration System.

Select BetaCal when calibrating the calibrator with BetaCal software.

For normal calibrator operation, select SYS. The selection of BetaCal or
SYS can be saved with the Save feature (see the following page).

Operation 130/135 25

MfgTst (Enable manufacturing test routines)

enter zero %
value ???????

enter 100 %
value ???????

(Model 130 Only)

This option enables several test routines used in the manufacturing,
test, and calibration of the calibrator. These routines are not intended
for use in the field. A special factory access code is required to activate
these routines.

Save (Save setup values in non-volatile RAM)

This function allows the setup parameters that have been entered to be
saved in non-volatile RAM. If the Setup mode is exited without saving
(by pressing the SETUP key a second time), the setup parameters
remain temporary in nature and will only be retained until the
instrument is powered off.

The SAVE option will allow the setup parameters to be retained, even
with power off, until they are changed by the operator.

InpRdg (Input Readings displayed as percent of scale)

This option allows you to configure the active input function to display
in percent of scale, rather than the standard engineering units. The
calibrator will prompt for the value of zero percent.

Enter the value in engineering units that represents the 0% value. Next
the calibrator will prompt for the value for 100 percent.

Enter the value in engineering units that represents the 100% value.
The input function will now be configured to display in percent of scale
rather than engineering units.

Operation 130/135 26

The input functions will return to displaying in engineering when the

Input Dampening
Disable Enable

% error % scale
+0.00% +0.00%

% error % scale
+0.00% +100.00%

next input function is selected.

Damp (Dampen input readings)

This feature allows noisy input signals to be electronically dampened
for easier reading. When the feature is enabled, a running average is
displayed, rather than the instantaneous value.

Select either Enable or Disable using the INC/DEC keys and press the
ENT key.

% Error Display

This option allows the user to configure the active input and output
function so the calibrator can internally compare them and display the
% error. For example, assume a 4-20mA calibrator output and 1-5 volt
calibrator input. If 4mA is being generated, 0% of scale will be
indicated on the right side of the display and if 1 volt is being received,
0% error will be displayed on the left.

Again assume, for the same signals, a 20mA calibrator output and a 5
volt input.

This feature is particularly handy when using the pressure modules
because exact pressure need not be achieved or held. Even if the
pressure input is changing, the display will indicate any error between
input and output. For example, assume the calibration of a 0-1500 PSI
P/I transmitter.

Operation 130/135 27

The configuration would be:

% error % scale

-0.10% +98.58%

% error
Disable Enable

Enter input Zero
EngUnits ???????

Enter input F.S.
EngUnits ???????

Enter output Zero
EngUnits ???????

Input Zero = 4
Input F.S. = 20
Output Zero = 0
Output F.S. = 1500

If a pressure of 1478.7 PSI (98.85% of scale) is applied, the transmitter
would be expected to output 98.58% of range or 19.773mA. If the
transmitter were outputting only 19.757 (which is a -.1% error), the
display would indicate:

It is then a simple matter to adjust the transmitter span to achieve a 0%
error reading.

The calibration technique is to adjust zero for zero % error and adjust
span for zero % error. Repeat as required.

To configure the % ERR display, first select the desired input and output
engineering units (V, mV, mA, or Pressure). Then select the % err
option from the Setup menu, and the 130 will display the prompt:

Then both the 130 and 135 will prompt:

Operation 130/135 28

Enter output F.S.
EngUnits ???????

Exit the Setup menu.

The 130 will display the input in % ERR and the output in % Scale on exit
from the setup menu.

The 135 will now display in the previously selected Engineering Units.
To display the % Error press the % Key. Press the % Key again to return
to the Engineering Unit display.

Once the calibrator is turned off, all % Error setups are lost.

Operation 130/135 29

Input Functions

Input functions are selected by pressing any of the function keys while
the calibrator is in input mode. Functions available on the Model
130/135 are Volts, Millivolts, Milliamps, Frequency, and Totalize. Input
mode is selected by pressing the INPUT key. The calibrator remains in
input mode until the OUTPUT key is pressed. The cursor position on
the display provides an indication of input or output mode. When the
calibrator is in the input mode, the cursor is displayed in the leftmost
column.

Input measurements are displayed on the left-hand side of the display.
The engineering units are displayed on the top line, and the actual
measurement value is displayed on the second line.

Volts/Millivolts

To measure Volts or Millivolts, press the V/mV (135) key when the
calibrator is in the input mode. The calibrator will begin making voltage
measurements or millivolt measurements. Press the V/mV (135) key or
the V or mV (130) key to toggle between the two ranges. The Model
130/135 will autorange between the 3 internal voltage ranges. The
ranges available for millivolts are identical to the voltage ranges. The
only difference between volts and millivolts is the format of the display.

Milliamps

To measure Milliamps, press the mA key when the calibrator is in the
input mode. The calibrator will begin making current measurements
and display in milliamps.

Frequency

To measure Frequency, press FREQ key when the calibrator is in the
input mode. The calibrator will begin making frequency measurements

Input Functions 130/135 30

and display in Hertz. The frequency measurement will be displayed

Holding
0

Counting
683

with the maximum resolution.

If the input frequency is below 5 Hz, the frequency display is blank.

Totalize

To activate the Totalize function, press the TOT key. The Totalize
function allows the calibrator to function as a counter to measure very
slow digital outputs.

The Totalize function has two possible states: HOLDING and COUNTING.
When the Totalize function is first selected, it will be in the Holding
state.

In the Holding state, transitions on the frequency input terminals are
ignored and the current count is held in the display. To switch between
Holding and Counting states, press the TOT key again.

In the Counting state, the calibrator counts up once for each positive
transition on the frequency input terminals. To stop the counting and
hold the current count in the display, press the TOT key again.

Each time the TOT key is pressed, the Totalize function switches
between the Counting and Holding states.

The counter can be cleared to zero while in the Holding state by
pressing the CE key. The clear is prevented while the counter is
counting.

While in Totalize mode, the output value CANNOT be changed either by
entering a new value or by the INC/DEC keys. The last entered output
value is maintained once the Totalize mode is entered. Totalize mode
is terminated when either a new Input or Output function is selected.
Input Functions 130/135 31

Pressure Module (Optional)

The pressure module should only be connected while the calibrator
is off.

The Pressure Module allows a Model 130/135 calibrator to make the
precise pressure measurements required for calibrating field pressure
instruments. The Pressure Module is a measurement only device. The
source of pressure must be supplied externally, usually by a hand
pump.

Electrical Connections

The Module attaches to the calibrator’s feature connector, located at

the bottom of the unit. The connector is keyed to prevent improper
installation.

Pressure Connections

The Pressure Module has a female 1/8 inch pipe thread for making the
pressure connection. The fitting is 316 stainless steel. A suitable
thread lubricant should be used when making the connection to
prevent seizing or galling.

Media Compatibility

The Pressure Module is designed to provide optimum accuracy as a
secondary calibration device. It is not designed to be a general purpose
test gauge to be attached to live processes. The low pressure ranges
(0-100 PSIG) are compatible with non-corrosive gases. For long service
with good stability and accuracy, clean, dry instrument air or nitrogen
should be used. The high pressure ranges (300-5000 PSIG) are
compatible with non-corrosive liquids and gases. The best liquid to use
is distilled water.

Operation

The Pressure Module is activated by pressing the OPT key just as you
would with any of the other function keys, such as volts or milliamps.
Input Functions 130/135 32

When the OPT key is pressed for the first after the calibrator is

Pressure Module
PSIG 30

Serial No. 2045
LastCal 080593

Engineering Unit
PSI “H2O “Hg Kpa

powered on, the calibrator reads the configuration and calibration data
from the Pressure Module. The first time the OPT key is pressed, a
series of messages is displayed listing the configuration of the Pressure
Module.

The first display is:

The top line shows that a Pressure Module is attached and the second
line gives the range. The above example is for a 30 PSIG Pressure
Module. The second display is:

The top line shows the serial number of the module and the second line
shows the date of the last calibration. The displays will remain for
approximately 1 second each, and then the pressure units menu will
appear.

This menu allows the selection of engineering units for pressure
display. The choices are displayed 4 at a time. Scrolling past the first or
last displayed selection provides additional choices.

The engineering units available are: PSI, inH₂O, inHg, Kpa, cmH₂O,
mmHg, mbar, Bar. The selection between absolute and gauge is made
automatically based on the type of module attached.

When any of the water column scales are selected from the main
engineering units menu, a second menu will be displayed that allows
the operator to select the conversion temperature desired. 20°C is the
Instrument Society of America (ISA) standard, 60°F is used by the
American Gas Association (AGA) and 4°C is used in scientific research.

Input Functions 130/135 33

Software versions prior to 03.35 use the 4°C conversion temperature.

The factors used by the Pressure Module to convert from PSI to other
engineering units are listed below.

2.036 “Hg @0°C

51.715 mmHg @0°C

6.8948 KPascals

68.948 milliBars

0.068948 Bars

27.681 “H2O @4°C

27.707 “H2O @60°F

27.730 “H2O @20°C

70.310 cmH2O @4°C

70.376 cmH2O @60°F

70.433 cmH2O @20°C

When the OPT key is pressed a subsequent time(s), the calibrator
checks the ID and serial number of the attached module. If these
match the previous values, the module is activated immediately,
bypassing the title and serial number displays.

The Pressure Module is capable of operating as an input or output
function, even though it is a measurement only device. This allows
simultaneous measurement of pressure and milliamps if desired or,
pressure measurement and milliamp generation.

To operate the Pressure Module as an input function, press the OPT key
while the calibrator is in the input mode. This will permit any allowable
output function to be active simultaneously with pressure
measurements.

To operate the Pressure Module as an output function, press the OPT
key while the calibrator is in the output mode. This will allow pressure
readings to be displayed on the output side, and milliamps to be
displayed on the input side. In this mode, the calibrator is actually

Input Functions 130/135 34

alternating readings between pressure and milliamps. This may cause a

If pressure measurements are not being made, the calibrator should
be turned off and the pressure module disconnected.

Note: To zero the reading, press the CE/Zero Key while the
calibrator is in input mode.

Enter actual val
???????

barely perceptible slowing of response time of the readings. If the
simultaneously display of pressure and milliamps readings are not
required, the Pressure Module should be operated as an input function
for quickest response times.

Zeroing a gauge pressure module

When a pressure module with a gauge pressure sensor is first activated,
it will typically display a non-zero pressure reading.

This is true even if the pressure is being displayed on the output side of
the calibrator.

There may be a slight drift of the zero reading during the first few
minutes of operation after power is first applied to the Pressure
Module. The user should recheck the zero by venting any pressure and
observing the reading. If a shift has occurred, a new zero is obtained by
pressing the CE/Zero Key while in input mode. Note that you must zero
the pressure reading any time a new engineering unit is selected.

Zeroing an absolute pressure module

When a Pressure Module with an absolute sensor is used, the zero or
offset procedure is modified to allow the user to enter the local
barometric pressure as the zero. When the CE/Zero key is pressed, a
prompting screen is displayed.

Input Functions 130/135 35

Enter the local barometric pressure in the engineering units that are

no external
module present

selected, and press ENT. The absolute pressure readings are then
compensated by using the entered value as the reference pressure.

There may be a slight drift of the zero reading during the first few
minutes of operation after power is first applied to the Pressure
Module. The user should recheck the zero by venting any pressure and
observing the reading. If the reading does not match the local
barometric pressure, a new zero is obtained by pressing the CE/Zero
key while in input mode, and entering the barometric pressure. Note
that you must enter the barometric zero any time a new engineering
unit is selected. The barometric reference standard used should be
.02% FS accuracy.

Disconnected Pressure Module

If the Pressure Module is disconnected while pressure readings are
being made, the display will show invalid for the pressure reading.
After a few seconds, the calibrator will determine that the Pressure
Module has been disconnected or malfunctioned and the following
display will be seen:

Input Functions 130/135 36

The pressure adapter module receives power and commands from

the calibrator’s output section and the pressure readings are made

through the calibrator’s input section. As a result the calibrator loses
its input to output isolation any time the pressure module is plugged
into the feature connector. This is not a problem as far as pressure
measurements are concerned. However, if you are operating the
calibrator in a mode that requires input-output isolation, such as
calibrating an E to E or I to E transmitter that is loop powered from
an external 24V power supply, you MUST UNPLUG the pressure
module. To be safe, you should disconnect the module anytime you
are making simultaneous input-output electrical measurements.

Safety

Good safety practices should always be followed when using high
pressures. Although liquids are considered non-compressible, dissolved
gases and trapped gases can exist in the system and can store
significant energy when compressed under high pressure. Always use
good quality fittings that are rated for the pressures being used.
Always wear safety glasses or goggles.

The ranges and resolution of the various pressure modules can be
found on page 70.

Input Functions 130/135 37

Trip Detect

The trip detect feature is used in conjunction with the Ramp Function.
Trip detect is a feature to aid in calibrating trip point alarms under
simulated operating conditions. The ramp output of the calibrator
simulates the changing process as an input to the alarm circuit.

The contact output of the alarm circuit connects back to the voltage
input of the calibrator.

The trip detect feature can utilize the volts input terminals. If the alarm
circuit has powered contacts, the volts input should be used. If the
alarm circuit has dry or non-powered contacts, a source of voltage must
be provided to allow the contact closure to be detectable. The
maximum input voltage is 30 volts; however, the calibrator can only
detect changes in the 0-10 volt range. This is normally not a problem,
since the powered contacts typically switch between 0 volts and 24
volts.

A change of more than 1 volt on the input is considered a change of
state of the alarm circuit.

Trip detect is enabled when the Ramp Function is initiated. The final
prompt when initiating the ramp is to enable or disable the trip detect
function. If you enable the trip detect function, the input function will
monitor for a significant change in its input measurement. When a
change is detected, the output ramp is stopped and the current value is
displayed.

The ramp is controlled by the INC/DEC keys. The first press of the INC
or DEC key will cause the ramp output to assume the full scale or zero
value, respectively. The second press of the key will cause the ramp to
start and the input function to start monitoring for a change of state.
When the change of state is detected, the ramp is stopped. Pressing
the INC or DEC key again will restart the cycle.

Input Functions 130/135 38

To test the dead band of an alarm, first initiate a positive going ramp

Armed
xxxxxx

Tripped
xxxxxx

using the INC key and record the trip point. Next initiate a negative
going ramp using the DEC key and record the trip point again. The
difference in the two recorded trip point values represents the dead
band of the alarm.

While the ramp is running and before the trip occurs, the input display
shows:

After the trip occurs, the input display shows:

To restart the ramp and reset the trip condition, press either the INC or
DEC key once to reset the ramp to the starting or ending value. Press
the INC or DEC key a second time to start the ramp. Be sure to reset
the external trip circuit if necessary before starting the ramp.

See the application note and diagram on page 52 and 53.

Min-Max Mode

The calibrator continuously stores the minimum and maximum values
of the input readings. The min-max function allows these values to be
displayed at any time.

To use the function, select the input variable to be displayed and press
the INC key to display the minimum and maximum values recorded.
The minimum and maximum values will be displayed until any key is
pressed. Pressing any key will reset the min and max values to the
most recent reading and the calibrator will return to displaying real
time values. The minimum and maximum values are reset each time an
input function is selected or re-selected.

Input Functions 130/135 39

Input Reading in Percent of Scale

This feature allows the input measurements to be displayed as a
percent of scale rather than in engineering units. This allows error
calculations in percent to be quickly calculated.

The feature is accessed through the Setup option InpRdg, and is
normally utilized with output Calibration Points which are also
programmed in percent of scale.

An example would be the testing of a turbine meter transmitter. The
output CalPts would be setup for 0-25-50-75-100 percent and the zero
and full scale frequencies entered. Next the input mA function would
be selected. Press SETUP and select the menu for InpRdg. Enter 4 as
the zero point and 20 as the full scale point.

Step through the CalPts using the INC key and observe the input

readings. The transmitter’s error in percent of scale will be the

observed reading minus the CalPts value. For example, if on the third
calibration point (50%) the input reads 50.15, the error is 0.15% of scale
(50.15-50.00).

Input Functions 130/135 40

Output Functions

VOLTS
??????

Output functions are selected by pressing any of the function keys
while the calibrator is in output mode. Output functions available on
the Model 130/135 are Volts, Millivolts, Milliamps, and Frequency.
Output mode is selected by pressing the OUTPUT key. The calibrator
remains in output mode until the INPUT key is pressed. The cursor
position on the display provides an indication of input or output mode.
When the calibrator is in output mode, the cursor is displayed in the
rightmost column.

Output measurements are displayed on the right-hand side of the
display, with engineering units displayed on the top line and simulated
value on the bottom. The output value displayed is the actual value at
the output terminals, not simply the setpoint value.

Volts/Millivolts

To output Volts or Millivolts, press the V/mV key when the calibrator is
in the Output mode. Pressing the V/mV key will cause the display to
alternate between volts and millivolts. (Note: the 130 has separate V
and mV keys. Press V for Volts and mV for Millivolts).

The calibrator will prompt for the value desired. The calibrator will
automatically select the proper range for the value entered. See page
68 for a description of the ranges and resolutions.

Enter the desired voltage and press ENT. If an improper or out of range
value is entered, the calibrator will display an error message. Error
messages and their meanings are displayed on pages 57 and 58. If the
value is within the operating limits, the calibrator will set the output to
the requested value. The output display will show the actual output

Output Functions 130/135 41

achieved at all times. The internal microprocessor will automatically

mAMPS
??????

mAMPS
.000

Freq. ampl = 0.05V
???

correct for any drift due to temperature or battery change.

The millivolts output function is identical to the volt function except
that the value is entered and displayed in millivolts.

Milliamps

To output Milliamps, press the MA key when the calibrator is in the
Output mode. The calibrator will prompt for the value desired.

Enter the desired current in milliamps and press ENT. If an improper or
out of range value is entered, the calibrator will display an error
message. Error messages and their meanings are listed on pages 57
and 58. If the value is within the operating limits, the calibrator will set
the output to the requested value. The output display will show the
actual output achieved at all times. The internal microprocessor will
automatically correct for any drift due to temperature or battery
charge.

If the calibrator cannot achieve current flow in the external loop, it will
display .000.

Once the loop is completed, the calibrator will begin displaying the
actual current value.

Frequency

To output a Frequency, press the FREQ key. The calibrator will prompt
for the output peak to peak (PP) amplitude.

Output Functions 130/135 42

Enter the desired value between .25 V and 10.0 V and press ENT. The

Hertz
??????

calibrator will set the output amplitude and then prompt for the
frequency value.

Enter the desired value between 0.01 Hz and 100,000 Hz and press ENT.
If an improper or out of range value is entered, the calibrator will
display an error message. Error messages and their meanings are listed
on pages 57 and 58. If the value is within the operating limits, the
calibrator will set the output to the requested value. The output
display will show the actual output achieved at all times.

The Model 130/135 calibrator provides a zero (0) based square wave at
the output terminals. In other words, the waveform swings between
ground and the requested positive output amplitude.

Some field devices require a waveform which swings negative and
positive from ground (bipolar signal) on their input terminals to
calibrate and operate properly.

To convert the zero based output to a bipolar output simply requires
that a capacitor be inserted in series with the output as shown in the
Application Note on page 55. The resistor is required since most
frequency inputs have a very high impedance and may have internal
pull-ups to hold the output steady if the input is open. The values are
not critical. The values shown in the Application Note have worked
with a number of frequency instruments. The capacitor should be non­polarized.

Output Functions 130/135 43

Ramp Function

Starting value

??????

Ending value

??????

Ramp time
secs ??????

Trip Detect
Disable Enable

ready

xxxxxx

The ramp function provides an output ramp with adjustable rate and
amplitude for volts, millivolts, and milliamps. When the RAMP key is
pressed, the following screen will be seen:

Enter the starting value for the ramp in engineering units for the
function you are using and press ENT. The next screen will be:

Enter the ending value for the ramp in engineering units for the
function you are using and press ENT. The ending value must be
greater than the starting value.

The next screen will be:

Enter the time in seconds for the ramp to slew from the starting value
to the ending value. The range is 10 to 100,000 seconds. The next
screen will be:

If you want trip detect enabled for use with the ramp function,
highlight Enable and press ENT. If you do not want trip detect enabled,
highlight Disable and press ENT. See the description of Trip Detect on
page 38 for more information on this function.

The next display will be:

Press the INC key to initiate the ramp from the starting value. Press the
Output functions 130/135 44

DEC key to initiate the ramp from the ending value. If the trip detect is

Slewing

xxxxxx

enabled, you must press the INC or DEC key twice. See the trip detect
description on page 38 for more information. While the ramp is
slewing, the display will show:

The instantaneous value will be updating in the display. You will notice
periodic pauses in the display as the calibrator does internal calibration
cycles. This does not affect the output ramp and only causes a pause in
the displayed value.

The ramp function is accomplished by updating the output digital to
analog convertor (DAC) every 250 milliseconds with a new value. The
amount of output change for each update is a function of the total
ramp span and the length of time for the ramp to complete. The ramp
is capable of 1 LSD resolution per update. The actual resolution, or
amount of change per step, is dependent on the ramp amplitude and
time. The following formula can be used to calculate the ramp
resolution:

step size = (ending value – starting value)
(ramp time x 4)

Calculate the ramp time to achieve a desired resolution using this
formula.

ramp time = (ending value – starting value)
(step size x 4)

Auto Mode

This function continuously repeats the calibration points or output
ramp programs. If the ramp function is active when the AUTO key is
pressed the ramp function is cycled continuously. If trip detect was
enabled, it is canceled by the auto mode. If the ramp function is not
active, then the CalPts are cycled repeatedly. If CalPts were not
enabled, no action is taken.
Output Functions 130/135 45

Loop Power Supply (Optional)

Note: Before using the LPS as a portable unit, it is necessary to
charge the batteries for a minimum of 14 to 16 hours.

The Loop Power Supply (LPS) is an option that provides 24 VDC to
power a device under test. The LPS is shipped with the batteries in an
uncharged state.

The battery charger for the LPS is different from the one supplied with
the Model 130/135 and 230/235 calibrators.

The LPS contains eight (8) AA Ni-Cd batteries that provide power to a
DC to DC converter. This converter boosts the battery voltage (10.6 to

9.2 volts) to 24 VDC +/- 5%. The LPS is intended for use as a power
supply for any two wire, 4 to 20 milliamp instrument requiring 24 VDC
power. Battery life is 6 hours nominal at 20 milliamps. Full
specifications can be found on page 71.

The LPS is designed to turn itself ON and OFF automatically, based on
current demand. When a series loop exists at the LPS Loop Power jacks
calling for .5 milliamps or greater the LPS will automatically turn ON.
Open the loop and power down occurs. This allows for maximum
battery life by not allowing the unit to be left in the ON mode
accidentally.

The LPS can be used with or without the calibrator. When the test
leads are connected from the LPS Loop Power connections to a device
requiring power, the LPS automatically turns itself ON and provides
24VDC. Breaking the connections causes the LPS to automatically turn
itself OFF, preventing needless battery drain.

To use the calibrator with the LPS, simply plug the special connector

provided with the LPS from the plug marked “To mA Input” on the LPS

to the milliamp input terminals on the calibrator. This automatically
Output Functions 130/135 46

puts the calibrator in series with the 4 to 20 milliamp loop. Plug the

test leads provided with the calibrator into the jacks marked “Loop
Power” on the LPS and connect them to the instrument under test,

with proper polarity (+ to + / - to -).

The batteries of the LPS can be checked by plugging the same special

cable provided with the LPS from the plug marked “Battery Charger” on

the LPS, to the V input jacks on the calibrator. When voltage is selected
on the keypad, the LPS battery voltage will be displayed on the
calibrator.

The LPS battery voltage should be between 10.6 and 9.2 volts. When
the voltage falls below 8.8 volts, the LPS will automatically turn itself
OFF to prevent damage to the batteries due to possible cell reversal.

Output Functions 130/135 47

Application Notes

Controller
Input Module

NOTE: Polarity
reversed at
calibrator

INPUT

4-20mA

+ -

Power

Supply

+ -

Use of Transmitter Simulator

With Power Source

The purpose of this function is to simulate a 2-wire transmitter
connected in a loop. In order for this function to operate correctly, the
process control loop must have a power source in it. Connect the
calibrator as shown below.

Application Notes 130/135 48

Figure 1

Use of Transmitter Simulator

2 Wire
Transmitter

+ -

Without Separate Power Source

The Model 130/135 Calibrator can be used to calibrate 2 wire, 4 to 20
mA transmitters without the need to use a separate DC power supply.
This is useful for bench calibration during construction check-out prior
to startup. Of course, if the loop is complete and energized, you would
not use this technique but would calibrate as usual.

Figure 2 shows the proper hookup. Note that this arrangement will not
work if the transmitter is connected in a complete 4 to 20 mA loop with
the customary 250 ohm dropping resistor. Be careful when making the
connection at the transmitter, if you short the leads, the calibrator mA
output fuse might blow.

The best technique is to connect the transmitter leads first, then
connect the calibrator. You must observe polarity or the transmitter
will not work.

Select Input mA and read the transmitter output on the display. The
Output mode of the calibrator may be set to any desired mode without
affecting the loop power. Milliamps may not be output at the same
time since this would over-load the internal power supply.

Application Notes 130/135 49

Figure 2

Turbine Meter Calibration Using the Totalize Function

Holding SELECT
OUTPUT

Counting SELECT
OUTPUT

For flow transmitters designed for very low flow levels, it is frequently
more convenient to calibrate using the Totalize function. This involves
counting the number of pulses from the turbine when a known volume
of liquid is passed through it.

1. Connect the frequency or pulse output leads of the flow
transmitter to the frequency input terminals of the Model
130/135 calibrator as shown in Figure 4.

2. Press the Tot key and the calibrator will display:

3. Press the Tot key again and the calibrator will display:

4. Open the flow valve and verify that the calibrator is counting the
turbine pulses, then close the valve. Press Tot again to put the
calibrator back into the Holding mode and press CE to clear the
count to zero.

5. Press Tot again and the calibrator will return to Counting mode
and is ready to totalize the turbine pulses.

6. Open the flow valve and allow a measured amount of liquid into
the proof vessel. When the level reaches the desired mark, press
the Tot key again to hold the current count. The displayed count
indicates the total number of pulses from the turbine for the
measured volume of liquid.

Application Notes 130/135 50

Turbine Meter Calibration

Supply

Turbine Meter
Transmitter

To Turbine
Meter Power
Supply

Turbine Calibrated
Frequency Vessel
Output

Using Totalize Function with Turbine Meter

Figure 4

Application Notes 130/135 51

Calibration of an Alarm Using Ramp and Trip Detect

This example describes calibration of a current input alarm circuit. The
calibrator should be connected as shown in Figure 5. The connection to
the alarm contacts can be made across either the NO or NC contacts
since the calibrator is simply looking for a change of state.

This example assumes that the alarm should trip when the current
exceeds 12 mA and reset when the current falls below 11 mA.

Once the connections are made, the Volts input function and the mA
function should be selected.

1. Press the RAMP key and enter 9 in response to the “starting

point” prompt. Enter 14 in response to the “ending point”
prompt. Enter 60 in response to the “time” prompt. This will

result in a Ramp step value of less than 20 microamps, which
should be suitable.

2. Press the INC key to ready the ramp at its starting (9 mA) value.

3. Ensure that the alarm is not already set. If it is, it may be
necessary to widen the starting and ending values and perform a
coarse calibration to bring it closer to calibration, then repeat the
procedure with the Ramp set to the closer limits.

4. Press the INC key again to start the Ramp.

5. Wait for the alarm to trip and the Ramp to stop. The input display
will show “tripped”, and the Ramp will be stopped.

6. If the alarm trip point is not within the desired accuracy, adjust
the alarm set point and repeat from step 2.

Application Notes 130/135 52

External 10K-100K resistor required to provide
Stable reading when contacts are open.

NO NC

INPUT

- +

Power
Supply

- +

30V Max

Alarm

7. Press the DEC key to ready the ramp at its ending (14 mA) value.

8. Press the Dec key again to start the Ramp.

9. Wait for the alarm to reset. The input display will again display
“Tripped” and the Ramp will be stopped.

10. If the alarm release point is not within the desired accuracy,
adjust it and repeat from step 7.

Application Notes 130/135 53

Figure 5

Calibration of mV to Current Converters

mV/Current

Converter

OUTPUT

- +

INPUT

- +

Input 10-50 mV

Output 4-20 mA

This example assumes a 10 to 50 mV input and a 4 to 20 mA output.

1. Connect as shown in Figure 3.

2. Select mA input.

3. Select mV output.

4. Enter 10 mV and adjust converter zero for 4 mA output.

5. Enter 50 mV and adjust converter span for 20 mA output.

6. Repeat steps 4 and 5 until both zero and span are within desired
tolerance.

Figure 3

Application Notes 130/135 54

Bipolar Frequency Calibration

Field Device
Frequency
Input
Terminals

100K

1uf

Pressure

Module

Shop Air

Supply

+ -

Vent to

Atmosphere

DP

Transmitter

Figure 6

Pressure Module

Figure 7 shows a typical connection for calibrating a loop powered
pressure transmitter with a Model 130/135.

Figure 7

Application Notes 130/135 55

Transmitter Calibration Using Loop Power Supply (LPS)

Pressure

Module

+

-

HI

LO

Vent to

Atmosphere

Special
mA Connection

Hand Pump

Instrument
Under Test

24VDC
4-20mA

Loop Power
Connection

Loop Power Supply

(LPS)

Stored in Pouch

Pressure Connection 1/8” FNPT

Figure 8

Application Notes 130/135 56

Error Messages

Entered value is out of range

The value entered is outside of the allowable range for the current output
function. Check the specifications for the function being used to determine the
allowable range of values.

Expecting ENTER CE or INC/DEC

The only keystrokes that are acceptable at this time are the ENTER, CE, INC or
DEC.

Expecting ENTER or CE/CANCEL

The only keystrokes that are acceptable at this time are the ENTER or CE
(interpreted as Cancel).

Illegal key for current function

The active function does not recognize the last key pressed. Review the
instructions for the function you are using.

INPUT function not expecting data

You are attempting to enter numeric data and the keyboard is in input mode. The
keyboard should be in output mode (press the OUTPUT key) before entering
numeric data.

Input section out of tolerance

The input section of the calibrator is out of calibration tolerance to the extent that
the calibrator is not usable. Power the calibrator off and back on to reset the
error. If the error persists the calibrator must be serviced.

Input section fatal error det

The input section of the calibrator has malfunctioned to the extent that the
operation is not possible. Power the calibrator off and back on to reset the error.
If the error persists the calibrator must be serviced.

KEY not implemented

You have pressed a key that has no meaning.

Error Messages 130/135 57

No external module present

You pressed the OPT key and there is no external module attached to the
calibrator. If there is a module attached, turn the calibrator off and back on and
attempt the operation again. If the error persists the module is probably
defective.

No mode change in MENU/SETUP

You have pressed the INPUT or OUTPUT key while a menu is active or in Setup
mode. You must complete the menu or setup sequence before changing modes.
You may cancel a menu by pressing CE or exit from Setup by pressing SETUP a
second time.

Output section out of tolerance

The output section of the calibrator is out of calibration tolerance to the extent
that the calibrator is not usable. Power the calibrator off and back on to reset the
error. If the error persists the calibrator must be serviced.

Output section fatal error det

The output section of the calibrator has malfunctioned to the extent that
operation is not possible. Power the calibrator off and back on to reset the error.
If the error persists the calibrator must be serviced.

Ramp not available for this function

The selected output function does not support Ramp mode.

Unidentified err CalledBy ??????

An internal error has been detected by the calibrator firmware. Turn the
calibrator off and back on to reset the error. If the problem persists, note the
data in the lower right of the display and contact your service representative.

Wrong access code entered

You entered the wrong access code when attempting to change the owner’s

name or accessing the manufacturing test menu. The access code for changing
the owner name is found on the factory calibration sheet. The access code for
accessing the test menu is found in the BetaCal documentation for users who are
performing their own calibrations.

Error Messages 130/135 58

Service Information

Return for Calibration, Recertification or Repair

It is recommended that each calibrator be re-calibrated and/or
recertified on an annual basis, and pressure modules re-calibrated
and/or recertified on a 6 month basis, against precision standards that
are traceable to the National Institute of Standards and Technology.

All returns should include a statement of the work requested and the
exact address to which the unit should be returned. Martel Electronics
will return units on a prepaid basis.

RETURN AUTHORIZATION

All equipment and/or parts to be returned to Martel Electronics for
repair must have a Martel Electronics Return Material Authorization
(RMA) form accompanying the equipment. The RMA form may be
acquired by downloading it from the Martel Electronics website
(www.Martelcorp.com) or by calling Martel Electronics [phone]
or toll free [phone].

Please fill out all RMA forms as completely as possible. Customer
name, address, and/or billing address when different from mailing
address. Include description of equipment (i.e. model numbers, serial
numbers, and quantities) along with purchase order number,
description of work to be done, (if repair work a detailed explanation of
the problem), and authorization to perform the work. This will ensure
rapid service.

C.O.D. CHARGES WILL NOT BE ACCEPTED.

Ship Prepaid to: Martel Electronics Corporation
3 Corporate Park Drive, Unit 1
Derry, NH 03038
Attention: Service Department
Service Information 130/135 59

Fuse Testing

Fuse Type/

Location

Fuse

No.

Function

Test

Input/
Output

Top PCB

130/135

F1

mA Input

Connect an ohmmeter across the
input milliamps terminals. The
resistance should be approximately
5 ohms. If it reads open, the fuse is
probably blown. If it reads
significantly higher than 5 ohms, the
input dropping resistor may have
been damaged due to an overload.

Model 130

Model 135

F4

F2

Freq

Output

Check for normal operation on the
Volts output 10V scale. If this is
normal, but there is no output Freq
mode on the frequency terminals,
the fuse may be blown.

The calibrator employs fuses to protect the outputs and inputs in the
event the calibrator is improperly connected to external circuitry. It is
necessary to remove the covers in order to access the fuse panel. The
following tests should be performed BEFORE removing the covers to
determine if a fuse is actually blown.

Service Information 130/135 60

Fuse Type/

Location

Fuse

No.

Function

Test

Input/
Output

Model 130

Model 135

Top PCB
130/135

Model 130
Model 135

F2

F3

mA Output

Short the milliamps output
terminals and attempt to output
10mA. If the output reads Open,
the fuse may be blown. Measure
from the mA positive (red) terminal
to the volts out negative (black)
terminal. If you measure 13-15 V
the fuse is OK.

F3
F4

V/mV

Output

If mA and frequency output
function normally, but volts or
millivolts do not function, the fuse
may be blown.

Main Power

Bottom
PCB
130/135

F1

Primary

Power

This fuse should not blow unless an
internal malfunction occurs or
unless the user inadvertently shorts
the main DC power line while the
case is open. The symptom would
be that the unit is completely dead.

F2

Charger

This fuse protects the batteries in
case the wrong charger is
connected to the unit. The
symptom would be that the unit
would not recharge from the
charger. If this fuse is found blown,
ensure that you are using the
charger supplied with the calibrator.

Service Information 130/135 61

Fuse Replacement

Read the following procedure fully and carefully before opening
the case for fuse replacement. Damage to the keypad and/or
keypad connector can occur if you do not follow these instructions.

Should it become necessary to change a fuse, take the following steps:

1. Turn the calibrator OFF.

2. Remove the 4 screws located at the corners on the bottom of the
unit.

3. Raise the cover at the top of the calibrator (end with the display)
until it clears the power supply and LCD display and then move
the entire top towards the bottom about 1-2 inches. This will
allow you to reach inside with your fingers and disconnect the
keypad tail from the printed circuit card.

4. Determine the blown fuse from the table below and extract the
fuse using a small screwdriver or paper clip. All input/output
fuses are located in the area of the input/output jacks, while the
two main power fuses are located in the area of the battery
charger jack. See page 65 for diagrams of the fuse areas.

Service Information 130/135 62

Fuse type

Littelfuse PN

Beta PN

2AG 1/10 A

225.100

904114-003

2AG 1 A

225001

905002-001

2AG 1/4 A

225.250

905009-001

Model 130

Fuse

Location

Function

Type

F1

input/output

mA input

2AG 1/10 A

F2

input/output

mA output

2AG 1/4 A

F3

input/output

V/mV out

2AG 1/4 A

F4

input/output

Freq output

2AG 1/4 A

F1

main power

Pri. Power

2AG 1 A

F2

main power

Charger

2AG 1 A

Model 135

Fuse

Location

Function

Type

F1

input/output

mA input

2AG 1/10 A

F2

input/output

Freq output

2AG 1/4 A

F3

input/output

mA output

2AG 1/4 A

F4

input/output

V/mV out

2AG 1/4 A

F1

main power

Pri. Power

2AG 1 A

F2

main power

Charger

2AG 1 A

Service Information 130/135 63

NOTE: Spare fuses are shipped with each calibrator. Additional
fuses may be obtained from Martel Electronics Corp. or from
local distributors.

The milliamp output fuse

(F2-Model 130, F3-Model 135) will blow if the mA+ output terminal is
shorted to the Volts- or Frequency- terminals even momentarily. This
most often happens while changing test lead connections when
individual leads are used. If individual leads are used, the mA+ lead
should always be disconnected first and reconnected last.

5. Replace the blown fuse with a new one of the proper type.

6. Reassembly is essentially the reverse of the above procedure.
Position the cover loosely and attach the keypad connector.
Carefully lower the cover into place, making sure it clears the
power supply PCB at the top and aligns with the jacks at the
bottom. Before installing the screws, turn the unit on and check
the keypad operation. Testing any horizontal row of keys will
verify that all contacts are properly made. Turn the unit back off
and reinstall the screws.

Service Information 130/135 64

F1

F3

F2

2AG
1/10 A

2AG
1/4 A

2AG
1/4 A

F1

F4

F2

2AG
1/10 A

2AG
1/4 A

2AG
1/4 A

F4

2AG
1/4 A

F3

2AG
1/4 A

F2

2AG
1 A

F1

2AG
1 A

Model 130 Input/Output Fuses Diagram

Model 135 Input/Output Fuses Diagram

Model 130/135 Main Power Fuses Diagram

Service Information 130/135 65

Warranty

Martel Electronics Corp. (Martel) devices are warranted to be free from
all latent defects in material workmanship under normal use and
service. Should any of Martel devices be found within one (1) year
from date of shipment to be defective, Martel will repair such part and

return to buyer FOB Martel’s plant or will furnish FOB Martel’s plant a

similar part to replace it, provided written notice of such defect is given
to Martel within ten (10) days after the discovery of such defect and

provided the original part is returned to Martel’s plant with

transportation charges prepaid.

THE FOREGOING WARRANTIES ARE IN LIEU OF ALL WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.

Service Information 130/135 66

Input Specifications

Function

Range

Resolution

Accuracy

B

Volts

0-1 Vdc

10 µV

±0.005% RDG ±0.005A

0-10 Vdc

100 µV

±0.005% RDG ±0.005A

Impedance:

>10 megohms nominal

Max. Input:

30 Vdc

mV

0-100 mVdc

1 µV

± 0.005% RDG ±0.005A

Impedance:

>10 megohms nominal

mA

0-20 mA

1 µA

±0.005% RDG ±0.01A

0-50 mA

10 µA

±0.005% RDG ±0.01A

Impedance:

5 megohms nominal

Freq

5-9.9999 Hz

0.0001 HzC

±0.005% RDG

10-99.999 Hz

0.001 HzC

±0.005% RDG

100-999.99 Hz

0.01 HzC

±0.005% RDG

1000-9999.9 Hz

0.1 HzC

±0.005% RDG

10000-100000 Hz

1 HzC

±0.005% RDG

Amplitude:

50mV to 170V Peak

Sensitivity:

50mV RMS 5Hz to 20kHz

100mV RMS 20kHz to 100kHz

Reading Rate:

2 readings per second

Impedance:

1 megohm nominal

Specifications

A

% of full scale +/- 1 digit.

B

Accuracy stated at 25°C, traceable to NIST.

C

Fully autoranging.

Specifications 130/135 67

Output Specifications

Function

Range

Resolution

Accuracy

B

Volts

0-1 Vdc

10 µV

±0.005% RDG ±0.005A

0-10 Vdc

100 µV

±0.005% RDG ±0.005A

Impedance:

<5 ohms

mV

0-100 mVdc

1 µV

± 0.005% RDG ±0.005A

Impedance:

<5 ohms

mA

0-22 mA

1 µA

±0.005% RDG ±0.01A

Impedance:

>1 megohm

Freq

0.01-9.9999 Hz

0.0001 HzC

±0.005% RDGD

10-99.999 Hz

0.001 HzC

±0.005% RDGD

100-999.99 Hz

0.01 HzC

±0.005% RDGD

1000-9999.9 Hz

0.1 HzC

±0.005% RDGD

10000-100000 Hz

1 HzC

±0.005% RDGD Amplitude:

250mV to 10V Peak

Rise and Fall:

1µsec (10%-90%)

Waveform:

Ground based positive square wave

Lock Time:

1 second to within 1% of final frequency

Impedance:

100 ohms nominal

A

% of full scale +/- 1 digit.

B

Accuracy stated at 25°C, traceable to NIST.

C

Fully Autoranging.

D

When measured with a Gate Time of 1 second.

Specifications 130/135 68

General

Input Impedance:

Volts

>10 megohms

Millivolts

>10 megohms

Current

5 ohms nominal

Frequency

1 megohm nominal

Output Impedance:

Volts

<5 ohms

Millivolts

<5 ohms

Current

>1 megohm

Frequency

100 ohms nominal

Maximum mA Loop Resistance

600 ohms

2-wire Simulator:

Max External Loop Voltage

48Vdc

Common Mode Rejection:

80 db at 60 Hz

Normal Mode Rejection:

40 db at 60 Hz

Input/Output Isolation:

100 megohms at 500Vdc

Battery Charge Time:

12-14 hours

Unit on Time:

7-8 hours typically

Temperature:

Effect

15°C to 35°C, none

Outside this range, 10ppm/°C typical

20ppm°C maximum

Operational

0°C to 50°C

Storage (w/Batteries)

-20°C to 60°C

Humidity:

10% to 90% non-condensing

Environmental

Specifications subject to change without notice.

Specifications 130/135 69

Pressure Module Specifications

Range

Resolution

Accuracy

0-.3 psig

.0001

.03%FS± .07%RDG ± 1 digit

0-1 psig

.0001

.03%FS± .07%RDG ± 1 digit

0-5 psig

.001

.02%FS± .05%RDG ± 1 digit

0-10 psig

.001

.02%FS± .05%RDG ± 1 digit

0-15 psig

.001

.02%FS± .05%RDG ± 1 digit

0-30 psig

.001

.02%FS± .05%RDG ± 1 digit

0-50 psig

.001

.02%FS± .05%RDG ± 1 digit

0-100 psig

.01

.02%FS± .05%RDG ± 1 digit

0-300 psig

.01

.03%FS± .06%RDG ± 1 digit

0-1000 psig

.1

.03%FS± .06%RDG ± 1 digit

0-1500 psig

.1

.03%FS± .07%RDG ± 1 digit

0-3000 psig

.1

.1%FS

0-5000 psig

.1

.1%FS

0-1 psig vacuum

.0001

.03%FS± .07%RDG ± 1 digit

0-5 psig vacuum

.001

.02%FS± .05%RDG ± 1 digit

0-15 psig vacuum

.001

.02%FS± .05%RDG ± 1 digit

0-15 psia

.001

.02%FS± .05%RDG ± 1 digit

0-30 psia

.001

.02%FS± .05%RDG ± 1 digit

0-50 psia

.001

.02%FS± .05%RDG ± 1 digit

0-100 psi, vac & abs

300% of sensor range

300-2000 psi

200% of sensor range

3000-5000 psi

150% of sensor range

Special ranges can be provided upon request.

Over Pressure

Operating, without damage or calibration shift:

A

±FS Plus ± %RDG ± 1 digit

Specifications 130/135 70

Media Compatibility

0 to 100 psi ranges vac & abs, clean, dry non-corrosive air or gases.

300 psig and higher ranges, non-corrosive liquids or gases.

Loop Power Supply Specifications

Rechargeable Ni-Cd batteries (eight AA cells), 6 hours nominal @ 20 mA
@ 25°C.
Voltage: 24 Vdc +/- 5%.

Battery Chargers

130/135

120 VAC to 5.8 Vdc @ 200 mA 908001-001
220 VAC to 5.8 Vdc @ 200 mA 908001-002

Loop Power Supply
120 VAC to 12 Vdc @ 200 mA 908007-001
220 VAC to 12 Vdc @ 200 mA 908782-001

Specifications 130/135 71

Notes

Specifications 130/135 72

Notes

Specifications 130/135 73

Notes

Specifications 130/135 74

Index

A

Application Notes, 48-56
Auto Key, 8
Auto Mode, 45

B

BatSave, 20
Battery
Charge Time, 69
Charging, 2
Check, 6
Save, 20
Bipolar Frequency Calibration, 55
Bipolar Output, 43

C

Calibration Points
Examples, 22
Function, 21
Utilizing, 23
Calibration System
Manual Calibration, 16
Pressure Calibration, 14
CE/Zero Key, 8
Common Mode Rejection, 69

D

Damp, 27

E

Environmental, 69
Error
% Display, 27
Error Messages, 57-58

130/135 I-1

F

Frequency, 30, 42
Fuse
Replacement, 62
Testing, 60
Type, 63

G

General Description, 1
General Specifications, 69

H

Humidity, 69

I

Inc/Dec Key
Function, 7
InpRdg, 26
Input
Dampen readings, 27
Functions, 30-40
Impedance, 69
Isolation, 69
Milliamps, 30, 67
Millivolts, 30, 67
Percent of Scale, 40
Pressure Module, 32
Readings as % of scale, 26
Selection, 5
Specifications, 67
Thermocouple, 30
Totalize, 31
Volts, 30, 67
Input Impedance, 69
Introduction, 1-2

130/135 I-2

K

Keys
Auto, 8
CE/Zero, 8
Inc/Dec, 7
Option, 9
% Key, 10
Ramp, 10
Setup, 19
SYS Key, 10

L

LCD Vu, 20
Loop Power supply, 56
Specifications, 71
LPS, 46

M

Menu
Selection, 6
Manufacturing Test, 26
Milliamps, 30, 42
Millivolts
Input, 30
Output, 41
Min-Max Mode, 49
mV to Current Converters, 50

N

Normal Mode Rejection, 69

130/135 I-3

O

Operation, 3-29
Operator Setup, 19
Option Key, 9
Output
Auto Mode, 45
Frequency, 42
Functions, 41-47
Impedance, 69
Isolation, 69
Milliamps, 42
Millivolts, 41
Ramp Function, 44
Selection, 5
Specifications, 69
Volts, 41, 68
Output Impedance, 69
Output Specifications, 68
Owner
Enter name, 24

P

Pause Time, 25
% Error Display, 27
% Key, 10
Percent of Scale, 23, 40
Power On Sequence, 3
Pressure Calibration
Using Calibration System, 14, 16

130/135 I-4

Pressure Module, 55
Description, 32
Disconnected, 36
Electrical Connection, 32
Media Compatibility, 32
Over Pressure, 70
Pressure Connection, 32
Safety, 37
Zeroing a gauge, 35
Zeroing an absolute, 35

R

Ramp Function, 44, 53-54
Ramp Key, 10
Return Authorization, 59
Return for Repair/Recertification, 59

S

Save
Setup values, 26
Serial Interface, 25
SerIf, 25
Service Information, 59-66
Setup, 19
Enter owner’s name, 24
Save values, 26
Specifications, 67-71
Temperature, 69
SYS Key, 10

130/135 I-5

T

Temperature
Operating, 69
Storage, 69
Totalize, 31, 51-52
Transmitter Simulator, 48-49
Trip Detect, 38, 53-54
2-wire Simulator, 69

U

Unit on Time, 69

V

Viewing Angle, 20
Volts
Input, 30
Output, 41

130/135 I-6

DC/Frequency Calibrator

ON
OFF

BAT
CK

CE
ZERO

%

V

mV

mA

7

4

1

.

8

9

Ramp

Freq

In
Put

5

6

Auto

Tot

Out
Put

2

3

Sys

-

0

Ent

Opt

Set
Up

INPUT

V mA Freq

+ +

- -

OUTPUT

Freq mA V

+ +

- -

Beta Model 135 Calibrator

See front cover for Model 130