Rosemount 8714D (Calibration Standard) Magnetic Flowtube Simulator, Magnetic Flow Meter Simulator - 8712D, 8700 Series Quick Start Guide

Quick Start Guide

00825-0100-4764, Rev DA

Rosemount® 8714D (Calibration Standard)
Magnetic Flowtube Simulator

March 2014

Quick Start Guide

March 2014

NOTICE

This document provides basic guidelines for the Rosemount 8714D. It does not provide instructions for
detailed configuration, diagnostics, maintenance, service, troubleshooting. This QSG is also available
electronically on www.rosemount.com.

Explosions could result in death or serious injury.

Installation of this device in an explosive environment must be in accordance with the appropriate local,
national, and international standards, codes, and practices. Please review the Product Certifications section
for any restrictions associated with a safe installation.

 Before connecting a Field Communicator in an explosive atmosphere, ensure the instruments are installed

in accordance with intrinsically safe or non-incendive field wiring practices.

Electrical shock can result in death or serious injury.

Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical
shock.

Contents

8714D introduction . . . . . . . . . . . . . . . . . page 3

Step 1: Change transmitter parameters page 3

Step 2: Connect wiring and power-up . . page 3

2

Step 3: Perform electronics trim . . . . . . .page 4

Step 4: Verify Rosemount 8714D flowtube

simulator . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5

March 2014

Quick Start Guide

8714D introduction

The Rosemount 8714D is a high-precision instrument that can be used to
recalibrate the following transmitters 8712 C/D/E, 8732 C/E, and the 8742C. The
8714D supplies an exact voltage, precisely simulating flow rates of 0.00 ft/s, 3.00
ft/s, 10.00 ft/s, and 30.00 ft/s. The precise 30.00 ft/s voltage signal may be used
to recalibrate or verify operation of the transmitter. Perform this procedure only if

you believe that the transmitter is no longer accurate.

Step 1: Change transmitter parameters

1. Use a Field Communicator or Local Operator Interface (LOI) to change the
parameters of the transmitter to the following:

 Tube Calibration Number: 1000015010000000
 Units: ft/s
 Analog Output Range: 20mA = 30.00 ft/s
 Analog Output Zero: 4mA = 0 ft/s
 Coil Pulse Mode: 5 Hz (6Hz 8712C only)

2. Set the loop to manual (if necessary).

3. Power down the transmitter.

Step 2: Connect wiring and power-up

1. Insert the metal end of the wiring assembly into the 8714D Calibration
Standard.

2. Connect the transmitter.

 For 8712, see Figure 1.
 For 8732/8742, see Figure 2.

Rosemount 8712 (Figure 1)

Use the six contact pin terminal plug-style wiring assembly. Follow the numeric
convention for the 8712 so the plugs match the terminal block.

Figure 1. 8712 Terminal Block

3

Quick Start Guide

Rosemount 8732/8742 (Figure 2)

Use the two black connector-style wiring assembly (one connector has four
contacts, the other has three.) Remove the electronics side cover (furthest away
from the conduit plugs). If you do not have a LOI, the connectors will be clearly
visible on the bottom side of the board. If you have a LOI, remove the three
mounting screws from the LOI assembly and pull the display assembly away from
the connector assembly until the connector assembly on the back of the board is
fully released. Then, plug the calibrator connectors into the appropriate
receptacles.

Figure 2. Rosemount 8732E Electronics

March 2014

Attempting an electronics trim without a Rosemount 8714D may result in an inaccurate
transmitter. It may also generate a DIGITAL TRIM FAILURE message. If this message appears, no
values were changed in the transmitter. Simply power down the transmitter to clear the
message. If the trim was completed, or no error message was generated, correction requires a
Rosemount 8714D.

Step 3: Perform electronics trim

1. Set the Rosemount 8714D to simulate a flow rate of 30 ft/s.

2. Power up the transmitter with the Rosemount 8714D connected. Allow the
electronics 30 minutes to warm-up before reading the flow rate.

3. Read the flow rate. It should be between 29.97 and 30.03 ft/s. If the reading is
within this range, return the transmitter to the original configuration. If the
reading is not within this range, continue to

flowtube simulator page 5

.

4. Initiate an electronics trim with the LOI or Field communicator. The
electronics trim takes about six minutes to complete. No transmitter
adjustments are required.

HART Fast Keys 1.5

LOI Auxiliary Function

4

Step 4: Verify Rosemount 8714D

March 2014

Test setup for method 1

Front panel connections

Quick Start Guide

Step 4: Verify Rosemount 8714D flowtube simulator

Procedure for verifying the Model 8714D flowtube simulator

The Rosemount model 8714D Flowtube Simulator is a “Calibration Standard”
made to operate specifically with the Rosemount models 8712 C/D/E, 8732 C/E,
and the 8742C Magnetic Flowmeter Transmitters. The 8714D simulates a sensor
coil load. It accurately produces a simulated flow signal for the purpose of
transmitter calibration.

Note

Rosemount strongly encourages the 8714D be sent back to the factory to be calibrated. Typically
on a yearly basis.

Method 1 verification: required equipment

 NIST* traceable DC current source capable of sourcing 500mA. Accuracy

should be +/- 0.1%.

 NIST traceable DMM (voltmeter). For example the Agilent 34401A or

equivalent.

*NIST stands for “National Institute of Standards and Technology”

Limitations

 Current thru terminals 1 and 2 should not exceed 600mA.
 Limit the output voltage on the current source to 12 VDC max. This is to

protect the 8714D input at pins 1 and 2 and also for operator safety.

 Calibration shall occur with the 8714D standard set at 30 per feet per second.

Figure 3. Test setup for method 1 and the front panel connection

5

Quick Start Guide

Tes t se tup for met ho d 1

March 2014

Method 1 - verification procedure

1. Set the output voltage limit on the current source to 12VDC max.

2. Set the current source output to 500mA dc.

3. Connect the current source to the 8714D input terminals 1 and 2 as shown in
the test setup diagram.

4. Allow the 8714D to stabilize for 30 minutes.

5. Measure and record the average voltage at pins 18 and 19 over a 5 minute
span.

6. The value should equate to 1.078mV ±.05%.

Note

If your device does not operate within this specification, return the Rosemount 8714D to the
Rosemount factory for calibration.

Method 2 verification: required equipment

 DC voltage source. Set current limit to ≤ 600mA
 NIST traceable 1 ohm, 1 watt precision resistor; 10ppm, measurable to 5 digits

(for example the Tegam SR1-1)

 NIST traceable DMM(s) (voltmeter); (for example, the Agilent 33401A or

equivalent)

Limitations

 Current through terminals 1 and 2 should not exceed 600mA.
 Calibration shall occur with the 8714D standard set at 30 per feet per second.

Figure 4. Test setup for method 2

Method 2 - verification procedure:

1. Verify the DC power supply is at 0 volts.

2. Connect the supply as shown in the above diagram.

3. Gradually increase the DC power supply voltage until 0.5V is measured across
the 1 ohm sense resistor (R

6

).

in

March 2014

Quick Start Guide

4. Allow the 8714D to stabilize for 30 minutes.

5. Re-verify the voltage across R

= 0.5V.

in

6. Measure and record the average voltage at pins 18 and 19 over a 5 minute
span. Also, measure and record the average voltage across Rin over the same 5
minute span. This will be VRin.

7. Calculate IRin as (VRin / 1Ω).

8. Due to the possible variation of IR

over the 5 minute time period, the

in

expected value at pins 18 and 19 can be calculated as:

/0.500)*1.078mV] = expected value across pins 18 and 19 ± 0.05%.

[(IR

in

9. For example:

 If the measured current through R

is 499mA, then:

in

[(0.499)/(0.500)]*1.078mV=1.075mV ± 0.05% at pins 18 and 19

 If the measured current through R

is 501mA, then:

in

[(0.501)/(0.500)]*1.078mV=1.080mV ± 0.05% at pins 18 and 19

 If the measured current through R

is 500mA, then:

in

[(0.500)/(0.500)]*1.078mV=1.078mV ± 0.05% at pins 18 and 19

Note

If your device does not operate within this specification, return the Rosemount 8714D to the
Rosemount factory for calibration.

Within the United States, Rosemount Inc. has two toll-free assistance numbers.

Tel (USA) 800 522 6277

Customer Support Center:

North American Response Center:

(7:00 a.m. to 7:00 p.m. CST)
Technical support, quoting, and order-related questions.

1-800-654-7768
(24 hours a day - Includes Canada) Equipment service
needs.

7

?00825-0100-4764I?

Quick Start Guide

00825-0100-4764, Rev DA

March 2014

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