Fluke 715 Manual

Fluke Måling 715

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718 Series

Pressure Calibrator

Users Manual

July 1998 Rev. 4, 3/06

All product names are trademarks of their respective companies.

718 Series

Users Manual

Replacing the Batteries............................................................................................. 21

Parts and Accessories ................................................................................................... 22

Specifications................................................................................................................. 25

Pressure Sensor Input .............................................................................................. 25

Pressure Module Input .............................................................................................. 25

DC mA Input ............................................................................................................. 25

Loop Supply .............................................................................................................. 25

General Specifications .............................................................................................. 26

How to Contact Fluke..................................................................................................... 27

iii

List of Tables

Table Title Page

1. Input Units ............................................................................................................................. 2

2. Safety Information ................................................................................................................. 3

3. International Electrical Symbols............................................................................................. 5

4. Pushbutton Functions............................................................................................................ 7

5. Pump Features...................................................................................................................... 10

6. Recommended Pressure Modules ........................................................................................ 14

7. Fluke Pressure Module Compatibility .................................................................................... 18

8. Replacement Parts ................................................................................................................ 22

718 Series

Users Manual

List of Figures

Figure Title Page

1. Connection Technique........................................................................................................... 5

2. Front Panel Features............................................................................................................. 6

3. Pump Features...................................................................................................................... 9

4. Internal Pressure Sensor with Internal Pump ........................................................................ 12

5. Pressure Module with Internal Pump..................................................................................... 13

6. Pressure Module with External Pump.................................................................................... 17

7. Sourcing Loop Voltage .......................................................................................................... 19

8. Battery Replacement ............................................................................................................. 21

9. Replacement Parts ................................................................................................................ 24

718 Series

Users Manual

718 Series

Users Manual

“How to Contact Fluke.” To order replacement parts or

spares, see “Parts and Accessories.”

Table 1. Input Units

Displayed Pressure Units

psi

inH2O at 4°C

inH2O at 20°C

cmH2O at 4°C

cmH2O at 20°C

bar

mbar

kPa

inHg

mmHg

kg/cm2

Safety Information

Use the Calibrator only as specified in this 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

Table 2. Safety Information

XW Warning

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.

• Do not use the Calibrator to make measurements in a CAT II, CAT III, or a CAT IV environment.

CAT I equipment is designed to protect against transient from high-voltage, low-energy sources, such

as electronic circuits or a copy machine

• 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 Series

Users Manual

Table 2. Safety Information (cont.)

XW Warning

• To avoid false readings, which could lead to possible electric shock or personal injury, replace the

battery as soon as the battery indicator B appears.

• 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 over pressure damages, do not apply pressure that exceeds the limits listed in the Pressure

Specifications table in the “Specifications” section.

• 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. Check test leads for

continuity before using. Inspect Calibrator for cracks or damage, do not use the probes if they are

damaged or show high resistance.

Pressure Calibrator

Safety Information

Hold in

fixed

position

wh001f.eps

Figure 1. Connection Technique

Table 3. International Electrical Symbols

Symbol Meaning

J Earth ground

I Fuse

M Battery

W Refer to this instruction sheet for

information about this feature.

X Hazardous voltage. Risk of electric

shock.

T Double insulated

) Conforms to relevant Canadian

Standards Association directives.

P Conforms to relevant European Union

directives

f Pressure

Pressure Calibrator

Getting Acquainted with the Calibrator

Table 4. Pushbutton Functions

Pushbutton Description

Press 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 O on while

pressing U to source loop voltage.

ENTER Turns pressure reading damping on and off. With damping on, the Calibrator averages several

measurements before displaying a reading. Press to c and 100% output parameters. onfirm selection of 0%

Z Press to zero the pressure display. Vent pressure to atmosphere before you press this pushbutton. With an

Absolute Pressure Module, see special instructions below.

Press to read the minimum pressure and current readings since power was turned on or the registers were

cleared. Press again to read the maximum pressure and current readings since power was turned on. Press

and hold for 3 seconds to clear the MIN/MAX registers.

S Press to perform switch test.

a Press to toggle the mA display mode between mA, mA Percent, and mA Percent Error.

W Press h to freeze the display. The gsymbol appears on the display. Press h again to resume

normal operation.

718 Series

Users Manual

Switch Test

To perform a switch test, do the following:

Note

This example uses a normally closed switch. The

procedure is the same for an open switch but the

display reads OPEN instead of CLOSE.

1. Connect the Calibrator mA and COM terminals to the

switch using the pressure switch terminals and

connect an external pump between the Calibrator and

the pressure switch. The polarity of the terminals does

not matter.

Note

If using an external pump, connect the pump to

the Calibrator and to the input of the switch using

a tee fitting.

2. Make sure the vent on the pump is open and zero the

Calibrator if necessary. Close the vent after zeroing

the Calibrator.

3. Press S to enter pressure switch test mode. The

Calibrator will display CLOSE instead of a mA

measurement.

4. Apply pressure with the pump slowly until the switch

opens.

Note

In the switch test mode, the display update rate is

increased to help capture changing pressure

inputs. Even with the enhanced sample rate,

pressuring the device under test should be done

slowly to ensure accurate readings.

5. OPEN is displayed once the switch is open. Bleed the

pump slowly until the pressure switch closes. RCL

appears on the display.

6. Press S to read the pressure values for when the

swith opened, for when it closed, and for the

deadband

Hold S for 3 seconds to reset Switch Test mode; hold

any other key for 3 seconds to exit.

Pressure Calibrator

Zeroing with Absolute Pressure Modules

For zeroing, adjust the Calibrator to read a known

pressure. This can be barometric pressure, if it is

accurately known, for all but the 700PA3 module. An

accurate pressure standard can also apply a pressure

within range for any Absolute Pressure Module. Adjust the

Calibrator reading as follows:

1. Press and hold Z.

2. Press a(Z) to increase or h(Y) to decrease

the Calibrator reading to equal the applied pressure.

3. Release Z to exit the zeroing procedure.

Press the U button to convert to any convenient

measurement display unit.

Pressure/

Vacuum

Switch

Fine

Adjustment

Knob

Internal Pump

Pressure/Vacuum

Release

Control

COM

30V

MAX

0-30psi 0-206kPa

RANGE

ZERO

HOLD

BAR OMET

RIC

A DJ

MODE

RANGE O 1 PSI

MAX 5 PSI P

-7 O 7 kP

MIN

MAX

SWITCH

TEST

wh009f.eps

Figure 3. Pump Features

718 Series

Users Manual

Table 5. 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.

Calibrating a P/I Transmitter

To calibrate a P/I (pressure to current) transmitter, apply a

pressure to the transmitter and measure the transmitter’s

current loop output. You can apply pressure with the

Calibrator’s internal pump or with an external pump.

XW Warning

To avoid a violent release of pressure or vacuum,

always depressurize the system slowly using the

pressure/vacuum release control before detaching

any pressure line.

Using the Internal Pump

The internal pump can provide the rated pressure for all

Model 718 Calibrators.

The preferred use for the internal pump is shown in Figure

4, where the Calibrator displays pressure measured with

the internal sensor and provided by the internal pump.

The internal pump can also be used with certain Fluke 700

Series Pressure Modules. In this case, pressure measured

by the Pressure Module is displayed by the Calibrator.

Appropriate pressure modules for each Calibrator model

are identified in Table 6 . Figure 5 shows the internal pump

being used with a pressure module.

Pressure Calibrator

Calibrating a P/I Transmitter

XW Warning

If both a pressure module and the internal

sensor are connected, the Calibrator displays

ONLY the pressure module measurement.

To use the Calibrator’s internal pump, refer to Figure 3 and

perform the following steps:

1. Depressurize and drain the line before connecting the

Calibrator.

2. Connect the pressure transmitter to the Calibrator

internal sensor as shown in Figure 4 (for internal

pressure sensor measurements) or Figure 5 (for

pressure module measurements.)

Note

To avoid leaks, use Teflon tape or similar sealant

on all pressure connections.

3. Make sure the pressure/vacuum switch is in the

desired position. Forward (clockwise) is for pressure;

backward (counter-clockwise) is for vacuum.

4. Turn the pressure/vacuum release control backward

(counter-clockwise) to vent pressure/vacuum from the

pump.

5. Press Z to zero the pressure display.

6. Turn the fine adjustment knob to mid-range.

7. Turn the pressure/vacuum release control forward

(clockwise) to close the release valve.

8. Work the pump handle in and out to apply

incrementally larger pressure/vacuum changes.

Shorten the stroke to apply smaller increments of

pressure/vacuum change.

9. To make very small pressure/vacuum changes, use

the fine adjustment knob.

Note

This knob adjusts a small internal reservoir to

vary the total volume. With larger external

pressure/vacuum volumes, this control will adjust

pressure or vacuum within a smaller range.

10. Depressurize the system before disconnecting the

pressure line.

718 Series

Users Manual

MODE

RANGE O 1 PSI

MAX 5 PSI P

-7 O 7 kP

MIN

MAX

SWITCH

TEST

COM

30V

MAX

0-30psi 0-206kPa

RANGE

I G N AS L

T E S T

+–

Red

Black

718

PRESSURE

CALIBRAT OR

HOLD

UNITS

ZERO

DAMP

LDHO

LOOP

POWER

BAR OM

ETR ADIC J.

wh002f.eps

Figure 4. Internal Pressure Sensor with Internal Pump

Pressure Calibrator

Calibrating a P/I Transmitter

MODE

RANGE 1 PSIO

MAX5 PSI P

- O 7 kP7

MIN

MAX

SWITCH

TEST

OC M

3 V0

MAX

0-30psi 0-206kPa

RANGE

UNITS

ZERO

DAMP

HOLD

LOOP

POWER

BARO

METR

IC A

DJ.

S I G N A L

E ST T

+–

Pressure Module

Red

Black

718

PRESSURE

CALIBRAT OR

HOLD

wh010f.eps

Figure 5. Pressure Module with Internal Pump

718 Series

Users Manual

Table 6. Recommended Pressure Modules

External

Pump

Internal

Pump

Pressure

Module 718

all models

718

30G

718

100G

718

300G

700 P00 X X

700 P01 X X

700 P02 X X X X X

700 P22 X X X X X

700 P03 X X X X

700 P23 X X X X

700 P04 X X X X

700 P24 X X X X

700 P05 X X X X

700 P06 X X X

700 P27 X X

700 P07 X

700 P08 X

700 P09 X

External

pump Internal Pump

Pressure

Module All 718

models

718

30G

718

100G

718

300G

700 PA3 X X X X

700 PA4 X X X X

700 PA5 X X X X

700 PA6 X X X

700 PV3 X X X X

700 PV4 X X X X

700 PD2 X X X X X

700 PD3 X X X X

700 PD4 X X X X

700 PD5 X X X X

700 PD6 X X X

700 PD7 X X

700 D29 X

700 P30 X

700 P31 X

Pressure Calibrator

Pump Valve Assembly Cleaning Instructions

Pump Valve Assembly Cleaning

Instructions

1. Using a small screwdriver, remove the two valve

retention caps located in the oval shaped opening on

the underside of the Calibrator.

2. After the caps have been removed, gently remove the

spring and o-ring assembly.

3. Set aside the valve assemblies in a safe area and

clean out the valve body using a cotton swab soaked

in IPA (isopropyl alcohol).

4. Repeat this process several times using a new cotton

swab each time until there is no remaining sign of

residue.

5. Pump the unit several times and check again for

residue.

6. Clean the o-ring assembly and o-ring on the retention

caps with IPA and inspect the o-rings closely for any

cuts, nicks, or wear. Replace if needed.

7. Inspect the springs for wear or loss of tension. They

should be approximately 8.6 mm long in the relaxed

state. If they are shorter than this, they may not allow

the o-ring to seat properly. Replace if needed.

8. Once all parts have been cleaned and inspected,

reinstall the o-ring and spring assemblies into the

valve body.

9. Reinstall the retention caps and gently tighten the

cap.

10. Seal the output of the Calibrator and pump up the unit

to at least 50 % its rated pressure.

11. Release the pressure and repeat several times to

ensure that the o-rings seat properly.

The Calibrator is now ready for use.

718 Series

Users Manual

Using an External Pump

XW Warning

To avoid damage to the Calibrator and possible

release of pressure, do not connect the internal

sensor to an external pressure source that

exceeds the maximum rated pressure.

To develop higher pressure or vacuum, use an external

pump (such as the Fluke Model 700PTP). Use a Fluke

Pressure Module connected to the pressure module input

on the Calibrator. Pressure modules are listed in Table .

Make overall connections as shown in Figure 6.

Refer to setup and operating instructions included with the

pressure module and pump.

Pressure Calibrator

Using an External Pump

MODE

RANGE O PSI 1

PSI 5P

O 7 kP

MIN

MAX

SWITCH

TEST

OC M

30V

MAX

0-30psi 0-206kPa

RANGE

S I G N A L

E ST T

+–

Pressure Module

Red

Black

718

PRESSURE

CAL IBRAT O R

HOLD

UNITS

ZERO

DAMP

HOLD

LOOP

POWER

ROMETRIC

ADJ.

MAX

wh006f.eps

Figure 6. Pressure Module with External Pump

718 Series

Users Manual

External Fluke Pressure Module

Compatibility

If inappropriate units are selected, the output of Fluke

700P Pressure Modules can cause the Calibrator display

to overflow (OL), or displays values that are too low to be

read. Refer to Table 7 for appropriate unit and range

compatibility.

Table 7. Fluke Pressure Module Compatibility

Pressure Unit Module Compatibility

psi Available on all pressure ranges

inH2 0 All ranges through 3000 psi

cmH2 0 All ranges through 1000 psi

bar 15 psi and above

mbar All ranges through 1000 psi

kPa Available on all pressure ranges

inHg Available on all pressure ranges

mmHg All ranges through 1000 psi

kg/cm2 15 psi and above

Produkt Specifikationer

Mærke:	Fluke
Kategori:	Måling
Model:	715
Bredde:	87 mm
Dybde:	32 mm
Højde:	187 mm
Vægt:	330 g
Brugervejledning:	Ja
Batterispænding:	9 V
Skærmtype:	LCD
Batteriteknologi:	Alkaline
Opbevaringstemperatur (T-T):	-40 - 60 °C
Relativ luftfugtighed ved drift (H-H):	0 - 95 %
Driftstemperatur (T-T):	-10 - 55 °C
Batterier inkluderet:	Ja
Driftshøjde:	0 - 3000 m
Display-cifre:	5 cifre
Driftsvibrationer:	2 G
Tabsikker op til:	1 m
Hylster inkluderet:	Ja
Krokodille clips:	Ja