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6.1.2 In Circuit, LC-110H Loop Power

In “mA Measure with 24V” mode the LC-110H is in circuit and the

loop power is supplied by the LC-110H as shown below.

(+)

(–)

MARTEL ELECTRONICS

LC-110H

Precision Loop

Calibrator w/HART™

100%

25%

MENU

EXIT

Measure 24V

0.00%

4.000mA

250

Ω

Note:

In this situation the 250

Ω

HART resistor is enabled. If your loop

already has 250

Ω

, do not enable the HART resistor.

6.1.3 Across Circuit, Communicator Only

In “Communicator Only” mode the LC-110H is across the circuit and
the loop power is supplied externally as shown below.

MARTEL ELECTRONICS

LC-110H

Precision Loop

Calibrator w/HART™

100%

25%

MENU

EXIT

PT12234

Device Setup & Data
Write LRV & URV Value
Trim, Set, & Zero
Device Diagnostic
Data Log & Config Log

24V

SUPPLY

(+)

(–)

4 to 20mA

RL≥250Ω

Note:

In the Communicator Only Mode, there must be 250

Ω

resistance present in the loop.

www.

GlobalTestSupply

.com

Find Quality Products Online at:

[email protected]

Содержание LC-110

Страница 1: ...LC 110 H Reference Manual www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 2: ...Shutdown 14 4 8 HART Write Enable 14 5 Advanced Features 15 5 1 Step and Ramp Operation 15 5 2 Valve Test 16 5 3 HART 250 Resistor 16 6 HART Device Communications 17 6 1 HART Connection Diagrams 17 6...

Страница 3: ...r Output step and ramp The calibrator has the following features Large easy to read display for measurements and data entry Digital knob with selectable decade control for quick and easy data entry In...

Страница 4: ...lips and the other set with mini grabber style ends Owner s Manual NIST Certificate 1 3 Safety information Symbols Used The following table lists the International Electrical Symbols Some or all of th...

Страница 5: ...Do not apply more than the rated voltage See specifications for supported ranges Follow all equipment safety procedures Never touch the probe to a voltage source when the test leads are plugged into t...

Страница 6: ...librator around explosive gas vapor or dust Disconnect test leads before changing to another measure or source function When servicing the calibrator use only specified replacement parts To avoid fals...

Страница 7: ...shows the present measurement or output value The individual operating modes are described below Use the MENU EXIT key to display the main menu described in section 3 to select the primary operating...

Страница 8: ...E RECORDER INDICATOR SCADA SYSTEM ETC 4 to 20mA Figure 2 Press the knob to move the decade cursor Rotate the knob to increment or decrement the output in steps indicated by the selected decade Use the...

Страница 9: ...to test a loop with the transmitter removed Figure 3 shows the main display and typical connections for this mode MARTEL ELECTRONICS LC 110H Precision Loop Calibrator w HART 100 25 0 MENU EXIT Simulat...

Страница 10: ...on 4 4 2 3 Milliamp Measure without 24V power In the mA Measure mode the calibrator displays the loop current Figure 4 shows the main display and typical connections for this mode MARTEL ELECTRONICS L...

Страница 11: ...w HART 100 25 0 MENU EXIT Measure 24V 0 00 4 000mA Figure 5 Press MENU EXIT to enter the main menu described in section 3 The text 250 text is shown in the lower right corner when the HART resistor h...

Страница 12: ...mm Menu Rotate the knob to select an action by moving the reverse video highlight up and down Press the knob to perform the selected action Press MENU EXIT to return to the main display without perfor...

Страница 13: ...ed action Press MENU EXIT to return to the main display without performing an action Note The HART Write Enable menu item only appears on the LC 110H device 4 1 Setting Auto Ramp Time Auto Ramp Time 1...

Страница 14: ...U EXIT to restore the previous value and return to the main display 4 3 Enabling Valve Test Valve Test Enable OFF ON This function enables and disables the valve test feature described in more detail...

Страница 15: ...cent of span field on the main display and to set the value used by the 0 key Rotate the knob to move the reverse video highlight to the desired selection Press the knob to save the highlighted select...

Страница 16: ...LC 110H It protects all functions on the Modify Setup menu and the Device Diagnostic Trim 4mA Trim 20mA Set Fixed Output and PV Zero functions The default setting is ON but may be turned off if the u...

Страница 17: ...atures that are helpful aids when doing milliamp calibrations The percent keys allow the user to set the milliamp output to 0 of span 100 of span or step it by 25 of span The Step Ramp key allows hand...

Страница 18: ...uto step and ramp 5 2 Valve Test The calibrator has a valve test mode for verifying proper operation of valves In valve test the user can step the output to the following values 3 8 mA 4 0mA 4 2mA 8 0...

Страница 19: ...rite Enable selection on the Calibrator Setup Menu described in section 4 8 If any of these functions are required they must be enabled before entering the HART menus 6 1 HART Connection Diagrams 6 1...

Страница 20: ...nable the HART resistor 6 1 3 Across Circuit Communicator Only In Communicator Only mode the LC 110H is across the circuit and the loop power is supplied externally as shown below MARTEL ELECTRONICS L...

Страница 21: ...leads are hooked up before connecting or simulating a modem HART Comm Menu 4 123 mA Mode mA 250 Resistor ON HART CONNECT SIMULATE HART MODEM Rotate the knob to select an action by moving the reverse...

Страница 22: ...and the loop power is supplied by the LC 110H as shown in 6 1 2 In Communicator Only mode the LC 110H is across the circuit and the loop power is supplied externally as shown in 6 1 3 The 250 Resisto...

Страница 23: ...s read from the device and the operations described in sections 6 5 through 6 10 become available 6 3 1 Polling The polling starts immediately and the display changes to the following where the string...

Страница 24: ...Tag 1 on two lines Long Tag 2 Long Tag 3 Long Tag 4 on two lines Rotate the knob to move the reverse video highlight to the desired tag Press the knob to select the highlighted tag and proceed to the...

Страница 25: ...if necessary The symbol in the upper right corner flashes to indicate a working HART connection Rotate the knob to move the reverse video highlight to the desired action Press the knob to select the...

Страница 26: ...s the symbol when additional screens follow the present one the symbol when additional screens precede the present one and both when additional screens follow and precede the present one Rotate the kn...

Страница 27: ...symbol in the upper right corner flashes to indicate a working HART connection Press the knob to move the decade cursor Rotate the knob to increment or decrement the value in steps indicated by the s...

Страница 28: ...Modify Setup menu in section 6 7 A reminder to change the loop to AUTOMATIC is displayed first 6 7 3 Write PV Unit A warning to change the loop to MANUAL before proceeding is displayed Press the knob...

Страница 29: ...first 6 7 4 Modify Tags Msg Descr Select the item to be modified from the following menu Tag Name Write Short Tag Write Long Tag Write Descriptor Write Message The tag name is truncated to fit on one...

Страница 30: ...to move the cursor one character to the right Press the 25 key to move the cursor one character to the left Press the 0 key to delete the selected character Press the 100 key to insert a space in fro...

Страница 31: ...change command for any reason Once the mode change is successful the following is displayed Tag Name Trim D A at 4 mA LC110H 4 065 mA Press knob to trim The tag name is truncated to fit on one line if...

Страница 32: ...aiting for the output to settle at 20 mA the screen indicates the LC 110H measurement The measurement is updated once a second Press the knob to trim the HART device remaining on this display to evalu...

Страница 33: ...ecrement the value in steps indicated by the selected decade Press and hold the knob to send the new value to the HART device remaining on this display An error is displayed if the HART device rejects...

Страница 34: ...et Zero menu in section 6 8 A reminder to restore the PV process input signal to normal operating configuration and change the loop to AUTOMATIC is displayed first 6 9 Device Diagnostic If the HART wr...

Страница 35: ...rors follow and precede the present one If there is no error or only one error there is no symbol Rotate the knob to step between errors Press MENU EXIT to return to the Function Select menu in sectio...

Страница 36: ...ore than one screen and shows a list of the tags contained in storage Tag names span two lines if they exceed the length of a single line If a storage position is not used the tag name area displays e...

Страница 37: ...indicate a working HART connection The number and contents of the storage position are shown at the top The tag number is empty if the storage position is empty Rotate the knob to move the reverse vi...

Страница 38: ...le sessions but all sessions must be from the same HART device as determined by the long tag name A different logging interval may be selected for each session Each data sample contains the LC 110H me...

Страница 39: ...ore doing so Select the logging interval Select Interval 1 second 2 seconds 5 seconds 10 seconds 30 seconds 60 seconds The symbol in the upper right corner flashes to indicate a working HART connectio...

Страница 40: ...sible PV mA is the last HART device measurement updated as often as possible 6 11 HART Modem Simulation Simulate HART Modem 4 123 mA The LEMO communications port is set to 1200 baud 8 data bits plus o...

Страница 41: ...d is not allowed by this loop device The command was ignored by the loop device HART response code 2 2 Value too large The data value sent with the HART command is greater than the range allowed by th...

Страница 42: ...invalid The command was ignored by the loop device HART response code 9 10 LRV too high The LRV value received is greater than the Upper Transducer Limit of this loop device or some other physical dev...

Страница 43: ...ignored by the loop device HART response code 13 18 Span too small The span of the LRV and URV values received is less than the Minimum Span allowed by this loop device The command was ignored by the...

Страница 44: ...the power and connections to the loop device HART response code 160 hex A0 26 Character framing The loop device detected a character framing error in one or more characters received The command was i...

Страница 45: ...oop device Try the command again b Character parity The response received from the loop device contained one or more characters with an invalid parity check Try the command again If the error persists...

Страница 46: ...er the HART protocol definition Try the command again If the error persists check the power and connections to the loop device h Invalid address The response received from the loop device contained a...

Страница 47: ...se only the specified replacement parts and do not allow water into the case Caution To avoid damaging the plastic lens and case do not use solvents or abrasive cleaners Clean the calibrator with a so...

Страница 48: ...LCD Graphic w backlight 34 high digits Power 6AAA alkaline lithium or NiMH batteries Battery Life 40 hours continuous use measure mode Loop Compliance Voltage 24VDC 20mA Loop Drive Capability 1200 wi...

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