Fluke 718 30G Manuel utilisateur
®
718 30G/100G
Pressure Calibrator
March 2000 Rev.2, 12/02
© 2000-2002 Fluke Corporation. All rights reserved. Printed in USA
All product names are trademarks of their respective companies.
Product Overview
LIMITED WARRANTY & LIMITATION OF LIABILITY
This Fluke product will be free from defects in material and workmanship
for three years (one year for pump assembly) from the date of purchase.
This warranty does not cover fuses, disposable batteries or damage from
accident, neglect, misuse or abnormal conditions of operation or handling.
Resellers are not authorized to extend any other warranty on Fluke’s
behalf. To obtain service during the warranty period, send your defective
Calibrator to the nearest Fluke Authorized Service Center with a descrip-
tion of the problem.
THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER WARRAN-
TIES, SUCH AS FITNESS FOR A PARTICULAR PURPOSE, ARE EX-
PRESSED OR IMPLIED. FLUKE IS NOT LIABLE FOR ANY SPECIAL,
INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR
LOSSES, ARISING FROM ANY CAUSE OR THEORY. Since some states
or countries do not allow the exclusion or limitation of an implied warranty
or of incidental or consequential damages, this limitation of liability may
not apply to you.
Accessing the Users Manual
The 718 Pressure Calibrator Users Manual is available
on the 718 CD included with your calibrator.
Contacting Fluke
To order accessories, receive operating assistance, or
get the location of the nearest Fluke distributor or Serv-
ice Center, call:
USA: 1-888-99-FLUKE (1-888-993-5853)
Canada: 1-800-363-5853
Europe: +31 402-678-200
Japan: +81-3-3434-0181
Singapore: +65-738-5655
Anywhere in the world: +1-425-446-5500
Or, visit Fluke’s Web site at www.fluke.com.
1
Pressure Calibrator
Introduction
The Fluke Model 718 30G and 718 100G Pressure
Calibrators (hereafter called “Calibrator”) can do the
following:
•Calibrate P/I (pressure to current) transmitters.
•Measure pressure via a 1/8-inch NPT pressure fitting
and an internal pressure sensor or via a Fluke 700
Series Pressure Module.
•Measure current up to 24 mA.
•Simultaneously display pressure and current
measurements.
•Supply loop voltage.
The Calibrator makes 5-digit pressure readings in the
following units: psi, inH2O at 4 °C, inH2O at 20 °C, kPa,
cmH2O at 4 °C, cmH2O at 20 °C, bar, mbar, kg/cm2, inHg,
and mmHg. Full scale pressure sensor input is as follows:
•Model 718 30G: 30 psi (206.85 kPa, 2.0685 bar). “OL”
appears at 33 psi.
•Model 718 100G: 100 psi (689.5 kPa, 6.895 bar). “OL”
appears at 120 psi.
The Calibrator measures pressure sensor inputs in the
units shown in Table 1.
For Pressure Modules, full scale readings for all pressure
ranges can be made in psi, kPa, and inHg units. To avoid
display overflow, full scale readings are limited to 1000 psi
in cmH2O, mbar, and mmHg units, and 3000 psi in inH2O
units. Pressures of at least 15 psi must be measured for
meaningful readings in bar and kg/cm2units.
718 30G/100G
Product Overview
2
Table 1. Pressure Sensor Range and Resolution
Displayed
Pressure
Units
Model 718 30G Range
and Resolution Model 718 100G
Range and
Resolution
psi -12.000 to 30.000 psi -12.00 to 100.00 psi
inH2O at
4°C-332.16 to 830.40
inH2O-332.2 to 2768.0
inH2O
inH2O at
20°C-332.75 to 831.87
inH2O-332.8 to 2772.9
inH2O
cmH2O at
4°C-843.6 to 2109.0
cmH2O-843.6 to 7030.0
cmH2O
cmH2O at
20°C-845.2 to 2113.0
cmH2O-845.2 to 7043.0
cmH2O
bar -0.8274 to 2.0685 bar -0.8274 to 6.8950 bar
mbar -827.4 to 2068.5 mbar -827.4 to 6895.0 mbar
kPa -82.74 to 206.85 kPa -82.74 to 689.50 kPa
inHg -24.432 to 61.080 inHg -24.43 to 203.60 inHg
mmHg -620.6 to 1551.4
mmHg -620.6 to 5171.5
mmHg
kg/cm2-0.8437 to 2.1090
kg/cm2-0.8437 to 7.0306
kg/cm2
Standard Equipment
The items listed below are included with your calibrator. If
the calibrator is damaged or something is missing, contact
the place of purchase immediately. To order replacement
parts or spares, see the user-replaceable parts list near
the end of this manual.
•TL75 test leads (one set)
•AC70A Alligator clips (one set)
•Holster
•718 Product Overview Manual
•718 CD-ROM (contains Users Manual)
•Fluke-700ILF In-Line Filter
Safety Information
Use the Calibrator only as specified in the Users Manual,
otherwise the protection provided by the Calibrator may be
impaired.
A Warning identifies conditions and actions that pose
hazard(s) to the user; a Caution identifies conditions and
actions that may damage the Calibrator or the equipment
under test.
Pressure Calibrator
Safety Information
3
WWarning
To avoid possible electric shock or personal injury:
•Never apply more than 30 V between the mA terminals, or between either of the mA terminals and earth
ground.
•Remove the test leads from the Calibrator before you open the battery door.
•Make sure the battery door is closed and latched before you operate the Calibrator.
•Do not operate the Calibrator if it is damaged.
•Do not operate the Calibrator around explosive gas, vapor, or dust.
•When using probes, keep fingers behind the finger guards on the probes.
•Use only two 9 V batteries, properly installed in the calibrator case, to power the calibrator.
•Follow all equipment safety procedures.
•Turn off circuit power before connecting the calibrator mA and COM terminals in the circuit. Place
calibrator in series with the circuit.
•When servicing the Calibrator, use only specified replacement parts.
•Do not allow water inside the case.
718 30G/100G
Product Overview
4
WWarning
To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery
as soon as the battery indicator Bappears.
To avoid a violent release of pressure in a pressurized system, shut off the valve and slowly bleed off the
pressure before you attach or detach the internal pressure sensor or Pressure Module fitting to the
pressure line.
To avoid overpressure damage, do not apply pressure to the internal pressure sensor input that exceeds
the following:
•Model 718 30G: 30.000 psi, 206.85 kPa, or 2.0685 bar. “OL” appears at 33 psi.
•Model 718 100G: 100.00 psi, 689.5 kPa, or 6.895 bar. “OL” appears at 120 psi.
To avoid mechanically damaging the Calibrator:
•Do not apply torque between the pressure fitting and the Calibrator case. See Figure 1 for the proper
use of tools.
To avoid misleading readings, disconnect the Pressure Module connector at the Calibrator.
To avoid damage to the Pressure Module, refer to the related Instruction Sheet.
To avoid damage to the pump, use with dry air and non-corrosive gases only. Use of the included Fluke
700-ILF In-Line Filter will help isolate the pump from contaminates. Failure to use the provided filter may
void the pump Warranty if contamination occurs.
Pressure Calibrator
Safety Information
5
Hold in
fixed
position
wh001f.eps
Figure 1. Connection Technique
Table 2. International Electrical Symbols
Symbol Meaning
JEarth ground
IFuse
MBattery
WRefer to the manual for information
about this feature.
TDouble insulated
Conforms to relevant Canadian
Standards Association directives.
PConforms to relevant European Union
directives
fPressure
718 30G/100G
Product Overview
6
Getting Aquainted with the Calibrator
Press Oto turn the Calibrator on and off. The Calibrator
displays pressure and current measurements
simultaneously. See Figure 2.
The upper part of the display shows the applied pressure
or vacuum. (Vacuum is shown as a negative value.) Press
Uto select a different unit. When you cycle the power
off and on, the Calibrator retains the unit you last used.
The lower part of the display shows the current (up to 24
mA) applied to the current (mA) inputs. The current inputs
are fused with a 0.125 A, 250 V fast fuse (Littelfusetype
2AG).
To source loop voltage, press Uwhile pressing Oon.
Current mA
measurement
Pressure
measurement
Pressure
module input
Pressure
sensor input
(Install filter here)
Current
input
On/Off Button
718
PRESSURE
CALIBRATOR
HOLD
COM
mA
30V
MAX
0-30psi 0-206kPa
RANGE
90psi 620kPa
MAX
UNITS
ZERO
DAMP
MIN CLR
MAX HOLD
LOOP
POWER
BAROMETRIC ADJ.
wh005f.eps
Figure 2. Front Panel Features
Pressure Calibrator
Pushbuttons
7
Pushbuttons
Pushbutton operation is described in Table 3.
Table 3. Pushbutton Functions
Pushbutton Description
UPress to select a different pressure unit. All units are available when the pressure sensor input is used. For
higher pressure module inputs, inappropriate (out-of-range) units are not available. Press Oon while
pressing Uto source loop voltage.
DTurns pressure reading damping on and off. With damping on, the Calibrator averages several
measurements before displaying a reading.
ZPress to zero the pressure display. Vent pressure to atmosphere before you press this pushbutton. With an
Absolute Pressure Module, see special instructions below.
mPress and hold to read the minimum pressure and current readings since power was turned on or cwas
pressed.
cPress to clear the MIN and MAX memories.
MPress and hold to read the maximum pressure and current readings since power was turned on or c
was pressed.
hPress hto freeze the display. The gsymbol appears on the display. Press hagain to resume
normal operation.
718 30G/100G
Product Overview
8
Pump Features
Refer to Table 4 and Figure 3.
Table 4. Pump Features
Item Description
Pressure
Vacuum
Switch
Rotate forward (clockwise) for pressure,
backward (counter-clockwise) for
vacuum.
Pressure
Vacuum
Release
Valve
Rotate fully backward (counter-
clockwise) to release all pressure or
vacuum. (Rotate slightly for partial
release.) Rotate fully forward (clockwise)
to close valve.
Fine
Adjustment
Knob
Rotate either direction for precise
adjustment of applied pressure or
vacuum. Full rotation is about 30 turns.
Internal
Pump Increase pressure on the inward stroke.
In vacuum mode, decrease pressure on
the outward stroke.
Pressure/
Vacuum
Switch
Fine
Adjustment
Knob Internal Pump
Pressure/Vacuum
Release
Control
COM
mA
30V
MAX
0-30psi 0-206kPa
RANGE
90psi 620kPa
MAX
ZERO
MIN CLR
MAX HOLD
BAROMETRIC ADJ.
wh009f.eps
Figure 3. Pump Features
Autres manuels pour 718 30G
1
Ce manuel convient aux modèles suivants
1
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