3D Instruments Accu-Cal Platinum User manual

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Accu-Cal Platinum Instruction Booklet
The“Direct Drive Difference” in Digital
Thank you for choosing the intrinsically safe Accu-Cal Platinum
Digital Ultra-Precision Test Gauge from 3D Instruments.
The Accu-Cal Platinum is very much like the 3D
Direct Drive Test Gauge; Rugged, accurate and
easy to use. The Difference is the greater
accuracy possible with a digital
display and, through an advanced design,
accuracy that is specified to be 0.04% of
reading plus .01% full scale over the
temperature range of 0 °C (32 °F) to 50
°C (122 °F) .
The large LCD was designed to be
reliable and easy to read under a variety of
environmental conditions.The Accu-Cal
Platinum display, complete with a 20 segment
bar graph for visual reference, is a five digit
display (99999), so auto-ranging is not required
to have sufficient display resolution for the rated
accuracy.
The silicon chip pressure sensors used are highly repeatable over pressure and tempera-
ture. Accu-Cal Platinum sensors incorporate a permanently filled oil isolated stainless
steel diaphragm in an all-welded fitting.The only wetted materials are 316 stainless steel.
Other features include the ability to select from up to 23 different pressure units
(depending on pressure range), High and Low pressure reading detection, adjustable auto
shutdown with 1500 hour battery life (continuous use) on 3 standard alkaline AA batteries,
damping, configurable sample rate and password protection of zero and cal data. The
case is polished 300 series stainless steel and is rated NEMA-4 for weather and corrosion
resistance.
And finally,the Accu-Cal Platinum is manufactured and serviced by the company that
makes THE Premier Pressure Gauge on the market today. Get The Direct Drive
Difference in Digital Today!
INTRODUCTION
(Pictured with an
optional boot)

PRODUCT INTRODUCTION
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OVERVIEW
The Accu-Cal Platinum Digital Ultra-
Precision Test Gauge combines the high
accuracy of digital electronics with the
convenience and ease of use of an analog
test gauge. Accurate to ±0.04% of reading
plus .01% full scale FS, the Accu-Cal
Platinum can be used as a calibration ref-
erence, or in any application where high
accuracy pressure measurement is
required.
Many user configurable functions have
been designed into the Accu-Cal Platinum
including sampling rate, TARE, damping,
auto shut off, and Max/Min. Once the
gauge is configured, settings can be
locked and password protected to prevent
unauthorized changes to configuration.
UNPACKING
Check to see that your Accu-Cal Platinum
has arrived intact. Batteries are factory
installed unless you have purchased the
optional 24V powered version, in which
case batteries are not supplied or
installed. Save the packing materials at
least until you have verified that there is
no concealed damage.
HAZARD LOCATION INFORMATION
Ex Hazardous Areas
An ex-hazardous area as used in this manu-
al refers to an area made hazardous by the
potential presence of flammable or explo-
sive vapors. These areas are also referred
to as hazardous locations, see NFPA 70
Article 500 or CSA C22.1 Section 18.
Certification
This product is certified by CSA with the
following rating: Class I, Div. 2, Groups A-D
PRODUCT USAGE WARNINGS/CAUTIONS
Misuse
Should the Accu-Cal Platinum be exposed
to overpressure or sudden physical shock
(i.e. being dropped) it should be examined
for any damage that may cause a safety
concern. If in doubt please return unit for
evaluation to 3D Instruments. Please refer
to the Warranty section on page 19 for
company contact information.
CAUTION
To avoid possible damage to the gauge
or to equipment under test:
• If the LCD displays “OL”, then the pres-
sure range limit has been exceeded and
the pressure source must immediately
be removed from the Accu-Cal Platinum
to prevent damage to the pressure
transducer.
• There is no "OL" indicator for vacuum
measurement on any of the pressure
ranges. Generally, at room temperature,
no damage will result to any of the posi-
tive pressure sensors should they be
inadvertently be exposed to vacuum. In
applications where the temperature is
very high or very low, the sensor on the
30 psig range will be damaged by vacu-
ums in excess of -5 psig.
• Maximum torque allowed is 13,5 Nm =
10 ftlbs. NEVER exceed the allowable
torque.
INSTALLATION
Prior to installing the gage into a process
connection, please ensure all pressure is
vented from the system. Ensure that you
use proper fittings to mate with the gauge.
Failure to utilize proper fittings will result in
leaks. Never attempt to tighten the unit by
turning the gauge housing by hand. This
may result in permanent damage to this
gauge.
U S
C
R

ACCU-CAL PLATINUM DISPLAYS AND CONTROLS
Turns Power on/off
Enters set-up and
configuration menus
Zeros the display,
Scrolls forward
through menu
displays
Recalls Max/Min
readings. Scrolls
backwards through
menu displays
Pressure display
Engineering Units
0 - 100% bar graph
Selects an action in
configuration.
Also turns the back-light
on/off
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OPERATING INSTRUCTIONS
PRODUCT INTRODUCTION
UNIT POWER-UP
The standard Accu-Cal Platinum is sup-
plied with 3 AA batteries installed. If you
purchased the optional 24Volt powered
version, batteries are not installed.
Connect a 24V power supply to the termi-
nal block on the rear of the gauge noting
proper polarity - refer to page 6 for detailed
instructions and warnings..
Push and hold down the POWER key for 2
- 3 seconds to turn the unit on. The LCD
will briefly display the firmware version,
test the bar graph display segments and
then cycle to the “normal operation”
screen. The gauge is now ready for serv-
ice. To turn off the gauge, press the
POWER key.
Note: The gauge will read to 120% of full
scale. After that point, the gauge will dis-
play: OL (over limit). The gauge is only
calibrated to 100% of full scale.
SET-UP AND CONFIGURATION
Push the CONFIG key to access the user-
settable functions on the gauge. Each time
the CONFIG key is pressed, the display
advances to the next function. Once a
function has been set, press ENTER to
exit the configuration menu, or CONFIG to
continue with further configuration. In
sequential order, the configuration menu
and operation is as follows:
1. Set Engineering Units (Default = PSI)
The unit is shipped configured to dis-
play PSI. By pressing the ▲and ▼
(ZERO and MAX/MIN) keys you can
scroll forward and backwards through
the available engineering units including
a custom unit. When the desired unit is
displayed, press ENTER or CONFIG.
Pressure will now be displayed in the
chosen engineering units. Refer to
pages 16 and 17 of this manual for a
list of available engineering units. See
the Supervisory Mode section for details
on setting up custom units.
(Pictured with an optional boot)

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2. Set Auto Off (Default = 30 minutes)
The auto shut-off can be set in 1
minute increments from 1 to 30 min-
utes or “off” (continuous operation).
Use the ▲and ▼keys to set the
desired interval. The “off” setting is at
the low end of the choices, below 1
minute. With the auto shut-off off, it will
remain on until manually switched off.
3. Display Battery Voltage
Displays actual voltage of battery
“pack” and a “percent of life” bargraph
indicating battery condition.
4. Display Actual Temperature
A PN junction based temperature sen-
sor is built into the microprocessor,
which is mounted on the PC board. It
can accurately read the temperature
inside the gauge case. The value can
be set to °F or °C using the ▲and ▼
keys. The factory default value is °C.
5. Set Damping (Default = OFF)
Choices are “on” and “off” set with the
▲and ▼keys. Turning damping on will
smooth readings from pulsating pres-
sure sources. The Damping function
averages 10 successive measure-
ments prior to updating the LCD dis-
play and MAX/MIN registers.
6. Set Sample Rate (Default = 10/sec)
This determines how often pressure is
sampled and both the display and
MAX/MIN registers are updated.
Choices are 0.5, 1, 3, and 10 sam-
ples/second with 10/sec being fastest.
7. Set TARE
This function allows you to build in a
constant offset value, which is then
subtracted from the measured pres-
sure. Example: if a TARE is set at 30
PSI and the measured pressure is 37
PSI, the displayed value will be 7 PSI.
A pressure of 27 PSI would be dis-
played as –3 PSI. TARE is settable
across the entire span of the gauge.
The TARE value is set manually with
the ▲and ▼keys, and is based on the
engineering units and resolution select-
ed for display. TARE value can be set
to the maximum range of the gauge.
Note: The bar graph will always display
the actual pressure based on the full
range of the gauge regardless of the
TARE setting. This is done for safety to
insure that even with a “0” reading that
pressure is being applied to the gauge.
8. FUnC Lock
Access to each of the settable parame-
ters above can be turned “off” once
set, to prevent unauthorized changes
to configuration. This is accomplished
through a password protected “supervi-
sory mode”. This function is accessed
through the Configuration menu - refer
to the next section.
SUPERVISORY MODE
Press the ENTER key when “FUnC LOCK”
is displayed, 0 PWRD will be displayed on
the gauge display. The password to enter
the supervisory mode is 101, set using the
▲and ▼keys. Holding a key continuously
will cause the display to advance quicker
for faster setting. Press the ENTER key to
reach the supervisory mode.
Note: The password is factory set and
cannot be changed.
1. The Accu-Cal Platinum is shipped from
the factory with all accessible settings
“unlocked” or available to be changed.
2. In order, the functions that can be
unlocked, locked or accessed are:
• Zero function (enable/disable)
• Set pressure units (enable/disable)
• Auto shutdown adjustment
(enable/disable)
• Damping settings (enable/disable)
• Sample rate setting (enable/disable)
• TARE setting (enable/disable)
• Custom engr. units (set scale factor)
OPERATING INSTRUCTIONS

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OPERATING INSTRUCTIONS
3. In supervisory mode each of the
parameters can be locked or unlocked
individually using the ▲and ▼keys.
Select LOC (lock) for those parameters
you do not want to be accessible, and
UnLOC (unlock) for those that can be
accessed.
4. Use the CONFIG key to scroll through
the above choices, and the ▲and ▼
keys to lock and unlock features. Press
CONFIG to continue scrolling through
the parameters, pressing ENTER at
any point saves your settings and
returns the gauge to normal operation.
When a function is “locked, it cannot
be accessed or changed from its cur-
rent state. To change a locked function,
enter the supervisory mode, and
unlock the function. Once it is
changed, you may enter supervisory
mode to lock access again.
5. Setting a custom engineering unit or
scale: The last menu choice in supervi-
sory mode is SET FACTR. This allows
you to set a multiplier factor from 0.001
to 100, creating a custom scale. The
set factor will be multiplied by the PSI
measured, the result will be displayed.
By setting a factor of 25, a 40 PSI
pressure would display as 1000 (40 x
25). The engr. unit displayed on the
Accu-Cal Platinum will be “Cust”.
Backlight Operation
Press the ENTER key to enable the back-
light. Press the ENTER key to turn it off.
Zeroing the Gauge
Press and hold the ZERO key for 1 - 2
seconds until the word HOLD disappears
from the LCD.
Note: Failure to depress the ZERO key
until the word HOLD disappears will result
in the gauge not being re-zeroed. To
ensure accurate measurements, the
extent of unit zero adjustment is apprx.
± 5% of full scale.
Note: The gauge should always be re-
zeroed immediately before measurements
are taken. The zero will fluctuate until the
temperature is stable. This will be more
noticeable on low pressure ranges. If the
gauge can not be zeroed, contact factory.
MAX/MIN Function
The Accu-Cal Platinum stores minimum
and maximum pressure values in memory.
Pressing the MAX/MIN key once will dis-
play the maximum pressure stored in mem-
ory. Pressing the MAX/MIN key again will
display the minimum pressure stored in
memory. Press the MAX/MIN key again to
return to normal (live display) operation. To
clear the MAX/MIN memory registers,
press and hold the MAX/MIN key for 2 or
more seconds until “CLr” is displayed. If a
value of “OL” (over limit) appears in the
MAX register, this indicates that the gauge
experienced pressure above 120% of span.
Note: The rate of MAX/MIN register
updates is determined by sample rate and
values will be lost when the unit is shut off.
Analog Bar Graph
The 20 segment analog bar graph located
at the bottom of the LCD display indicates
the applied pressure level expressed as a
percentage of the full range of the gauge.
Note: If a TARE value has been pro-
grammed into the gauge, the numeric
value indicated on the LCD display will
not reflect the true pressure being applied
to the gauge.
Battery Life
Battery life is approximately 1500 hours
(60 days) of continuous use with the back-
light off and at a sample rate of 3/sec. With
intermittent use, batteries could last a year
or more. There is a “low battery” icon in
the upper left of the display. It will appear
when battery level is low at approximately
3.3 volts. The unit will shut itself off when
the battery voltage drops to 3.0 volts.
Replace batteries per recommendations
found in the next section of this manual.

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Changing the Batteries
WARNING
Explosion hazard
Batteries must only be changed in an area
known to be non-hazardous.
Grasp the face ring on the Accu-Cal
Platinum, turn it approximately 1⁄4turn coun-
terclockwise and remove. The face of the
gauge can now be lifted to expose the bat-
tery holder. Install three AA batteries noting
proper polarity. Reassemble the case mak-
ing certain that the face is properly oriented.
RS-232 Interface (optional)
A RS-232 interface is provided standard on
the Accu-Cal Platinum. Serial communica-
tion can be used for configuration, calibra-
tion, and to transfer measurement data
from the gauge. An optional RS-232 com-
munication cable is required for this opera-
tion and can be obtained from the factory.
For information on the optional RS-232
cable and required software communica-
tion protocol, refer to pages 9 -11.
WARNING
The RS-232 interface must not be used in
hazardous areas.
24 VDC Power Version (optional)
If you purchased the 24 Volt version, the
terminals for power input are located on
the rear of the gauge. To apply power sim-
ply connect a 24 volt source to the rear ter-
minal block taking care to observe proper
polarity. Refer to page 18.
WARNING
Gauges ordered with the external power
option will not come with batteries
installed. Batteries MUST NOT be installed
when operating on external power. External
power option gauges are not approved for
hazardous location use. The use of batter-
ies in connection with a power adapter can
cause batteries to leak or explode, thereby
damaging the electronics and voiding the
warranty.
If you lack a 24 VDC power source, to
power the unit, one may be obtained from
3D Instruments - contact factory for details
or refer to page 13 for ordering informa-
tion.
The 24 volt version can be operated on
3 x AA batteries provided the unit is not
already being powered by a 24 volt source.
If the gauge is currently hooked to a 24
volt source, disconnect it and install the
batteries per the instructions outlined in the
“Changing the Batteries” section.
Mounting (optional)
An optional front or rear 300 Series
Stainless Steel mounting flange, which is
welded to the case, is available for the
Accu-Cal Platinum. Outline drawings for
both flanged versions are provided on page
12.
OPERATING INSTRUCTIONS

Overview
Verification and calibration of the Accu-Cal
Platinum (ACP) is not required on newly
supplied units, only when the accuracy is
suspect. Unit re-calibration requires pres-
sure and/or vacuum standards able to pro-
duce and indicate pressures from vacuum
to the full-scale range of the unit under
test. In order to maintain the specified
accuracy of the ACP, calibration standards
used to re-cal the ACP must have 4x better
accuracy than the ACP. A vacuum stan-
dard will be required for the calibration of
the -14.7-0-30 compound range.
Calibration adjustment of the ACP is per-
formed electronically via internal software
with the case closed. All calibration com-
mands and adjustments are done via the
keypad, using the display to prompt the
user through the calibration process.
Nine or ten calibration points are used in
the adjustment program, working from full
scale to zero at pressures equaling 100%,
87.5%, 75%, 62.5%, 50%, 37. 5%, 25%,
12.5%, and 0% of full scale plus a possible
vacuum point.
Note: This is an ambient temperature cali-
bration and should be performed at an
ambient temperature of 23 ºC ± 3 ºC (72
ºF ± 5 ºF). Calibration outside this temper-
ature range will invalidate the temperature
compensation program.
Calibration Interval
You should check performance of the
gauge at the interval required by your cali-
bration program. We recommend adjust-
ment when measurement deviates by
more than 75% of the specified accuracy.
Connections
The Accu-Cal Platinum has a 1/4” NPT
male pressure input port. Various adapters
may or may not be needed to connect to
the pressure standard. Always ensure the
hose, tubing, and fittings etc have a rated
working pressure at or above the pressure
of the unit.
Entering Calibration Mode
After you have made your connections,
turn the power on while holding the
CONFIG key. Use the arrow keys to enter
the password. The password is: 101. If you
have entered the calibration mode correct-
ly, the display should look as shown below.
The pressure value displayed will be the
full-scale value of the gauge. Refer to
important note on bottom of page 8.
Screens shown in this manual represent
the displays shown with a 500 psi gauge.
The Accu-Cal Platinum will prompt the
technician for the appropriate pressure at
each calibration point.
Use the Pressure Standard to output
500.00 psi (100%). After the output has
stabilized, press the ENTER key to contin-
ue. As the unit takes readings, the screen
will show -------. When the readings are
complete, the screen should look as
shown below.
Use the Pressure Standard to output
437.50 psi (87.5%). After the output has
stabilized, press the ENTER key to contin-
ue. As the unit takes readings, the screen
will show -------. When the readings are
complete, the screen should look as
shown below.
Use the Pressure Standard to output
375.00 psi (75%). After the output has sta-
bilized, press the ENTER key to continue.
As the unit takes readings, the screen will
show -------. When the readings are done,
the screen should look as shown below.
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PSI
500.00
CAL MODE
PSI
437.50
CAL MODE
ACCU-CAL PLATINUM CALIBRATION PROCEDURE
PSI
375.00
CAL MODE

Use the Pressure Standard to output
312.50 psi (62.5%). After the output has
stabilized, press the ENTER key to contin-
ue. As the unit takes readings, the screen
will show -------. When the readings are
complete, the screen should look as
shown below.
Use the Pressure Standard to output
250.00 psi (50%). After the output has sta-
bilized, press the ENTER key to continue.
As the unit takes readings, the screen will
show -------. When the readings are com-
plete, the screen should look as shown
below.
Use the Pressure Standard to output
187.50 psi (37.5%). After the output has
stabilized, press the ENTER key to contin-
ue. As the unit takes readings, the screen
will show -------. When the readings are
complete, the screen should look as
shown below.
Use the Pressure Standard to output
125.00 psi (25%). After the output has sta-
bilized, press the ENTER key to continue.
As the unit takes readings, the screen will
show -------. When the readings are com-
plete, the screen should look as shown
below.
Use the Pressure Standard to output 62.50
psi (12.5%). After the output has stabilized,
press the ENTER key to continue. As the
unit takes readings, the screen will show
-------. When the readings are complete,
the screen should look as shown below.
Use the Pressure Standard to output 0.00
psi. After the output has stabilized, press
the ENTER key to continue. As the unit
takes readings, the screen will show -------.
When the readings are complete, the
screen should look as shown below.
Note: Only one of the pressure ranges
for the Accu-Cal Platinum will require a
vacuum point as part of the calibration
routine. If your gauge is not one of those,
then this step will be automatically skipped
and the calibration routine will be com-
plete. Use the Pressure Standard to output
-12.00 psi. After the output has stabilized,
press the ENTER key to continue. As the
unit takes readings, the screen will show
-------. When the procedure is complete,
the unit will update the calibration data
point. The gauge will then automatically
shut off and repower itself into the normal
operating mode.
Note: In the calibration routine, if an
entry is misentered there is no way to
correct the value - either complete the
calibration step and reenter the proper
value or turn the gauge off at this point
and repeat the entire calibration. If the
calibration routine is aborted prior to its
completion, none of the newly entered
cal points will be saved.
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PSI
187.50
CAL MODE
PSI
125.00
CAL MODE
PSI
62.50
CAL MODE
PSI
0.00
CAL MODE
PSI
312.50
CAL MODE
PSI
250.00
CAL MODE
PSI
-12.00
CAL MODE
ACCU-CAL PLATINUM CALIBRATION PROCEDURE

Enclosed are instructions for establish-
ing communications between the Accu-
Cal Platinum Digital Test Gauge and a
personal computer (PC) utilizing the
Hyper Terminal communications soft-
ware included in the Windows xP
Operating System. A custom cable
assembly (3D Instruments Part Number:
2025-0004) is required to complete the
link-up.
To set up remote operation of the gauge via
the Windows Hyper Terminal program, first
connect the gauge, via the special cale, to
a COM serial communications port on the
PC. The following procedure details how to
set up the Hyper Terminal program to allow
bi-directional communication between the
Accu-Cal Platinum and the PC.
1. Start the Hyper Terminal program …
click on: All Programs/Accessories/
Communications/Hyper Terminal.
2. In the “CONNECTION DESCRIPTION”
box, enter a name for your communi-
cation routine (i.e.: Accu-Cal Platinum)
and then click: OK
3. In the “CONNECT TO” box, under
“Connect Using”, choose the appropri-
ate serial port on the PC to which the
gauge is connected (i.e.: com1) and
then click: OK
4. In the “XXX PROPERTIES” box (where
XXX = serial port selection in #3
above), under “port settings”, enter the
following serial port settings:
A) Bits Per Second: 9600
B) Data Bits: 8
C) Parity: None
D) Stop Bits: 1
E) Flow Control Xon/Xoff
click: OK
5. At this point, the “HYPERTERMINAL”
box will appear. Click on: FILE and
then: PROPERTIES … the “YYY
PROPERTIES” box (where YYY=name
assigned to the communications rou-
tine in #2 above) appears. Click on:
SETTINGS and then click on” ASCII
SETUP. A box titled “ASCII SETUP”
appears … check the following items:
A) In the “ASCII Sending” section:
Send line ends with line feeds.
B) In the “ASCII Sending” section:
Echo typed characters locally.
C) In the “ASCII Receiving” section:
Append line feeds to incoming line
ends
Note: In the “ASCII Receiving” section,
the line “wrap lines that exceed termi-
nal width” should already be checked.
Click: OK
6. Click: OK to exit this box.
The gauge is sent from the factory in
the “query” mode … meaning that the
information is supplied in response to a
given after a query. Refer to the List of
Query Commands in Table 1 on Page 10
for information on commands. These com-
mands can be used after you have estab-
lished communication with the gauge. The
Accu-Cal Platinum can also be configured
to transmit this information in a “streaming”
mode, whereby lines of data are sent auto-
matically to the PC. Once communication
with the gauge is established, type in the
command: stream_on and press the
ENTER key. The gauge is now in the
“streaming” mode.
Note: This setting will now be saved in
non-volatile memory as the default mode
of RS-232 communication.
The displayed information, when the gauge
is in the “streaming” mode, will appear in
the form:
A, B CC.C, D
Example: 0, PSI 24.4 Cel
where: A = pressure reading,
B = Engineering Unit selected for pressure
reading, CC.C = temperature reading and
D = unit of temperature measurement.
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ACCU-CAL PLATINUM RS-232 COMMUNICATION

The following are general notes on RS-232
communication with the Accu-Cal Platinum:
1. The rate of screen updates in the
“streaming” mode is governed by the
sample rate of the Accu-Cal
Platinum. Consult page 4 of the
Instruction Manual for details on
changing this value.
2. Data collected during a communication
session can be stored and retrieved. At
the end of your data collection period,
type: FILE and SAVE AS. A program
like EXCEL or other database pro-
grams can import and manipulate the
saved ASCII information.
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ACCU-CAL PLATINUM RS-232 COMMUNICATION
Table 1 is a list of available commands to which the Accu-Cal Platinum Digital Test Gauge will
respond. Please note: the commands must be entered exactly as they are listed. Both upper and
lower case letters and symbols are acceptable.
Table 1 List of Query Commands
Command Description
CAL_START Puts the Accu-Cal Platinum in calibration mode
*CLS Clears the error queue
FAULT? Returns an error code from the error queue
*IDN? Identification query. (Returns 3D/Model?Firmware revision level)
TARE Tares the offset pressure of the reading on the gauge
TARE? Returns the current tare value
PRES_UNIT? Returns the pressure Engr. Unit - refer to Table 2 below
PRES_UNIT Sets the pressure unit for the display - refer to Table 2 below
ZERO_MEAS Re-zeros the gauge (same result as pressing the “ZERO” key
ZERO_MEAS? Returns the current zero offset value
MINMAX_RST Resets the minimum and maximum recorded values
MIN? Returns the minimum recorded value
MAX? Returns the maximum recorded value
HC_OFF Turns unit off
TEMP? Returns temperature in the chosen units
HC_SI_OFF Disables SI mode
HC_SI_ON Enables SI mode (SI enables only: kPa, MPa, Bar, mBar units)
CAL_STORE Stores calibration data
HC_AUTO_OFF Disables auto shutdown
HC_AUTO_ON Enables auto shutdown
CUST_MULT? Sets the multiplier for the custom unit type
STREAM_OFF Disables “streaming” data
STREAM_ON Enables “streaming” data
VAL? Returns the measured pressure value in selected units.
HC_CMD_LIST Prints out a command list
TEMP_UNIT Used to set temperature unit
TEMP_UNIT? Returns temperature unit
Command examples:
1) Pres_unit bar Sets engineering unit to Bar
2) Temp_unit far Sets temperature unit to fahrenheit

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Table 2 lists all of the potential Engineering Units available on the Accu-Cal Platinum Digital Test
Gauge. Please note: not all Engineering Units are available on all pressure ranges.
Table 3 details a list of Error Codes that you may experience during RS-232 communication.
Table 3 Error Codes
Error Description
101 A non-numeric entry was received and it should be a numeric entry
102 Too many significant digits entered
103 Invalid units or parameter value received
105 Entry is above the upper limit of the allowable range
106 Entry in below the lower limit of the allowable range
108 A required command parameter was missing
109 An invalid pressure unit was received
117 An unknown command was received
120 The serial input buffer overflowed
121 Too many entries in the command line
ACCU-CAL PLATINUM RS-232 COMMUNICATION
Table 2 List of Engineering Units
Units Description
PSI Pressure in pounds per square-inch
BAR Pressure in bars
MBAR Pressure in milibars
KG/CM2 Pressure in kilograms per centimeter squared
INH2O4C Pressure in inches of water measured @ 4 °C
INH2O20C Pressure in inches of water measured @ 20 °C
INH2O60F Pressure in inches of water measured @ 60 °F
MH2O4C Pressure in meters of water measured @ 4 °C
MH2O20C Pressure in meters of water measured @ 20 °C
CMH2O4C Pressure in centimeters of water measured @ 4 °C
CMH2O20C Pressure in centimeters of water measured @ 20 °C
mm H2O4C Pressure in millimeters of water measured @ 4 °C
mm H2O20C Pressure in millimeters of water measured @ 20 °C
MSW Pressure in meters of seawater
FtH2O4C Pressure in feet of water measured @ 4 °C
FtH2O20C Pressure in feet of water measured @ 20 °C
FtH2O60F Pressure in feet of water measured @ 60 °F
FTSW Pressure in feet of seawater
INHG0C Pressure in inches of mercury measured @ 0 °C
MMHG0C Pressure in millimeters of mercury measured @ 0 °C
KPAL Pressure in kilopascals
MPAL Pressure in megapascals
TORR Pressure in torr
CUST Pressure in “custom” units
FAR Temperature in Fahrenheit
CEL Temperature in Celsius

KT-099
06/07
Page 12 of 20
ACCU-CAL PLATINUM OUTLINE DRAWINGS
120
ø5.88
ø5.375 X3 32.ø
Front
Flange
Version
Accu-Cal Platinu m
®
Digital Ultra-Precision Test Gauge
SIDE VIEW
FRONT VIEW
2.05
Back
Flange
Version
Front
Flange
Version
1.90
.81
ø4.35
1.27
3.27
1.22
.57 1/4 NPT
(Both front view and side view pictured with optional mounting flange)
All dimensions in inches.

KT-099
06/07
Page 13 of 20
12345
PART NUMBER: XXXP4 - XX B XX XXX
Example: 755P4-33B55 Battery Powered Accu-Cal Platinum with 300 series
SS case 3000 psig sensor, bottom 1/4" NPT male fitting,
without mounting flange
1Product Description:
755P4 - Accu-Cal Platinum: 3 x AA battery powered version,
765P4 - Accu-Cal Platinum: 24 VDC version (does not include 24 volt adapter)
2Pressure Ranges Codes:
48: -14.7-0-30 psig 23: 0-100 psig 29: 0-1000 psig
21: 0-30 psig 27: 0-500 psig 33: 0-3000 psig
3Process Connection:
B: 1/4" NPT male
4Connection Position and Mounting Flange Codes:
15: Flange front, bottom fitting 45: Flange back, back fitting*
25: Flange front, back fitting 55: Flange none, bottom fitting
35: Flange back, bottom fitting* 65: Flange none, back fitting
* Codes 35 and 45 not available on 765P4 model.
5Option Codes: (leave blank if no options are required)
PNO: Accu-Cal Platinum Cal Kit #1–includes an Accu-Cal Platinum digital
gauge, Model 8110-300: 0-300 psi Pneumatic Handpump, Hose Kit
and Series-200 ABS waterproof case
PRO: Accu-Cal Platinum Cal Kit #2–includes an Accu-Cal Platinum digital
gauge, Model 8111-300: Vac/0-300 psi Duplex Handpump, Hose Kit
and Series-200 ABS waterproof case
PUO: Accu-Cal Platinum Cal Kit #3–includes an Accu-Cal Platinum digital
gauge, Model 8112-3000: 0-3000 psi Hydraulic Handpump, Hose Kit
and Series-200 ABS waterproof case
6Accessories:
• Custom RS-232 Cable - Part Number: 2025-0004
• 110 VAC to 24 VDC power adapter wall mount style; 6 foot cable -
Part Number: 2001-0090
• Rubber boot for gauge - Part Number: 2023-0005
ACCU-CAL PLATINUM MODEL NUMBERING SYSTEM

KT-099
06/07
Page 14 of 20
All specifications cover the temperature
range from 0° C to +50° C, unless other-
wise noted.
Available Pressure Ranges
See pages 16 and 17 for tables of avail-
able ranges in PSI plus equivalent ranges
and resolution for all Engineering Units.
Accuracy
Positive Pressure:
±0.04% of reading plus .01% of full scale
Vacuum: 0.1% of Full Scale, where Full
Scale = 30 psig (this vacuum specification
applies only to the -14.7-0-30 psig com-
pound range)
For gauges with full scale ranges equal to,
or less than 100 psig, vacuum operation is
limited to -5 psig (except for the compound
range of -14.7 to 30 psig). For ranges
above 100 psig, vacuum operation is limit-
ed to -12 psig..in both cases, the vacuum
accuracy is: unrated
All accuracies include all effects due to:
hysteresis, repeatability, non-linearity
and temperature.
Temperature Compensation
0 °C to +50 °C (32 °F to +122 °F) to rated
accuracy
Over Pressure Protection
Proof Pressures for the various pressure
sensors are detailed on pages 16 and 17.
Burst Pressures for the various pressure
sensors are as follows:
Range (PSI) Pressure (PSI)
0-30* 500
0-100 1000
0-500 2000
0-1000 10000
0-3000 10000
*includes compound sensor -14.7-0-30
psig
Standard Engineering Units*
PSI, Bar, mBar, kPa, kg/cm2,
inH2O (4 °C, 20 °C or 60 °F),
ftH2O (4 °C, 20 °C or 60 °F),
mmH2O (4 °C and 20 °C),
cmH2O (4 °C and 20 °C),
mH2O (4 °C and 20 °C), inHg, mmHg,
Torr, MPa, ftSw and mSw
One custom unit (user programmable)
* Not all units available for all ranges.
Materials of Construction
Case: 300 Series Stainless Steel
Wetted parts: 316 Stainless Steel
Overlay: Polycarbonate
Sensor bracket: Anondized Aluminum
Boot (optional): Synerflex
Sensors
All ranges: piezoresistive semiconductor
sensor chip in an oil isolated housing
incorporating a 316 SS isolation
diaphragm. Media compatibility: liquids and
gases compatible with 316 SS.
Environmental
Operating: -10 °C to +55 °C (14 °F - 131 °F)
Storage: -20 °C to +70 °C (- 4 °F to +158 °F)
Rel. Humidity: 10 to 95% non condensing
Mechanical
Dimensions: 5.39" (height) x
4.355" (diameter) x 1.95" (depth)
Pressure Connection: 1⁄4” NPT Male
Housing: 300 Series Stainless Steel,
qualifies as NEMA 4/ IP65 waterproof
Weight: 1.09 lbs (495 gms)
LCD Display
Digits: 5, 0.65" (16.53 mm) high
Bar graph: 20 segment, 0 to 100% FS
Backlight: Fiber optic
SPECIFICATIONS

KT-099
06/07
Page 15 of 20
Power
Battery: three (3) AA alkaline batteries,
optional 24 VDC power
Battery Life: 1,500 hours without backlight
@ 3/sec sample rate
2,000 hours at slow sample rate
“Low Battery” indicator icon is displayed
near the end of battery life
Auto shutoff: adjustable from 1 - 30 mins
Agency Approvals
CE Mark
EN 55022: 1998 and
EN 61000-4-2/3: 1995
Meets EMI/RFI and ESD conditions out-
lined in above EN standards: 30 mHz to
1 gHz with a field strength of 3 v/m.
Intrinsic Safety
The battery powered version of the Accu-
Cal Platinum (Series 755P4) conforms with
all requirements for Class 1, Division 2,
Groups A, B, C and D hazardous area
locations. Specific approvals are as fol-
lows:
CSA - USA and Canada Approvals
ATEX (pending)
U S
C
R
SPECIFICATIONS

KT-099
06/07
Page 16 of 20
PRESSURE RANGES / DISPLAY RESOLUTIONS
Pressure Range PSI Conversion 30* 100
Unit/Proof Pressure PSI Factor 60 200
psi 1.0000 30.000 100.00
bar 0.06894757 2.0684 6.8948
mbar 68.94757 2068.4 6894.8
kPa 6.894757 206.84 689.48
MPa 0.0068947 0.2068 0.6895
ftSw 2.247 67.410 224.70
mSw 0.6849 20.547 68.490
kg/cm2 0.07030697 2.1092 7.0307
mmH2O@4°C 703.089 21093 70309
mmH2O@20°C 704.336 21130 70434
cmH2O@4°C 70.3089 2109.3 7030.9
cmH2O@20°C 70.4336 2113.0 7043.4
mH2O@4°C 0.703089 21.093 70.309
mH2O@20°C 0.704336 21.130 70.434
inH2O@4°C 27.68067 830.42 2768.1
inH2O@20°C 27.72977 831.89 2773.0
inH2O@60°F 27.70759 831.23 2770.8
mmHg@0°C 51.71508 1551.5 5171.5
inHg@0°C 2.03602 61.081 203.60
ftH2O@4°C 2.306726 69.202 230.67
ftH2O@20°C 2.310814 69.324 231.08
ftH2O@60°F 2.308966 69.269 230.90
Torr 51.71508 1551.5 5171.5
Proof Pressure - maximum allowable pressure without a shift in calibration.
*Resolutions good for both -14.7-0-30 and 0-30 psig

KT-099
06/07
Page 17 of 20
PRESSURE RANGES / DISPLAY RESOLUTIONS
Pressure Range PSI 500 1000 3000
Unit/Proof Pressure PSI 1000 2000 6000
psi 500.00 1000.0 3000.0
bar 34.474 68.948 206.84
mbar 34474 68948 NA
kPa 3447.4 6894.8 20684
MPa 3.4474 6.8948 20.684
ftSw 1123.5 2247.0 6741.0
mSw 342.45 684.90 2054.7
kg/cm2 35.153 70.307 210.92
mmH2O@4°C NA NA NA
mmH2O@20°C NA NA NA
cmH2O@4°C 35154 70309 NA
cmH2O@20°C 35217 70434 NA
mH2O@4°C 351.54 703.09 2109.3
mH2O@20°C 352.17 704.34 2113.0
inH2O@4°C 13840 27681 83042
inH2O@20°C 13865 27730 83189
inH2O@60°F 13854 27708 83123
mmHg@0°C 25858 51715 NA
inHg@0°C 1018.0 2036.0 6108.1
ftH2O@4°C 1153.4 2306.7 6920.2
ftH2O@20°C 1155.4 2310.8 6932.4
ftH2O@60°F 1154.5 2309.0 6926.9
Torr 25858 51715 NA
NA = Engineering Unit not enabled for particular pressure range
Proof Pressure - maximum allowable pressure without a shift in calibration.

KT-099
06/07
Page 18 of 20
24V TERMINAL (76 SERIES ONLY)
IDENTIFICATION LABEL
RS-232 ACCESS PORT
(BLOW OUT PLUG)
3 D I n s t r u m e n t s , L P
2900 E. White Star Avenue
Anaheim, CA 9280
6
Ph: [phone]
Pressure Range: 3000 PSI
P/N: 755P4-33B55 S/N: AC-XXXXXXX
Dissassembly, Misuse or Negligence Voids Warranty
(Pictured with optional mounting flange)
ACCU-CAL PLATINUM 24VDC WIRING DETAIL

KT-099
06/07
Page 19 of 20
WARRANTY
3D Instruments, LP warrants the Accu-Cal Platinum to be free from defects in material
and workmanship under normal use and service for one (1) year from date of purchase to
the original purchaser. It does not apply to batteries or when the product has been mis-
used, altered or damaged by accident or abnormal conditions of operation.
Within one (1) year from date of purchase, 3D Instruments will, at our option, repair or
replace a defective device free of charge and the device will be returned, transportation
prepaid. However, if we determine the failure was caused by misuse, alteration, accident
or abnormal condition of operation, you will be billed for the repair.
3D INSTRUMENTS, LP MAKES NO WARRANTY OTHER THAN THE LIMITED WAR-
RANTY STATED ABOVE. ALL WARRANTIES, INCLUDING IMPLIED WARRANTIES
OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE, ARE LIMIT-
ED TO A PERIOD OF ONE (1) YEAR FROM THE DATE OF PURCHASE. 3D INSTRU-
MENTS, LLC SHALL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSE-
QUENTIAL DAMAGES, WHETHER IN CONTRACT, TORT OR OTHERWISE.
For warranty or non-warranty service, we can be reached at:
Phone........................714•399•9200
Email [email protected]
Address .....................3D Instruments, LP
Attn: Accu-Cal Platinum Service Department
2900 E. White Star Avenue
Anaheim, CA 92806
U.S.A.
Web...........................www.3dinstruments.com
Return Authorization numbers are not required for servicing. Please return, freight pre-
paid, to the address above and include a Contact Name, Address, Phone and Fax
Number. If you wish to be notified of the charges before any service is done, 3D
Instruments will contact you after evaluating the unit. Units evaluated but not serviced are
subject to an evaluation charge. Defective units need to be returned to 3D Instruments,
LP within 90 days of identification of a problem.

http://www.3dinstruments.com
The“Direct Drive Difference” in Digital
KT-099
06/07
Page 20 of 20
©2013 3D Instruments, LP
2900 E. White Star Avenue
Anaheim, CA 92806
Ph: 714•399•9200
E-mail: [email protected]
W
eb Site