Brooks Instrument MT3810 User Manual

0 (0)

Installation and Operation Manual

X-VA-MT3810-eng

Part Number: 541B050AAG December, 2008

Model MT 3810

Brooks® Model MT 3810

Metal Tube Variable Area Flowmeter with Optional Electronics Based on Smart Meter ManagerTM Technology

Brooks® Model MT 3810

Model MT 3810

Installation and Operation Manual

X-VA-MT3810-eng Part Number: 541B050AAG December, 2008

Essential Instructions

Read this page before proceeding!

Brooks Instrument designs, manufactures and tests its products to meet many national and international standards. Because these instruments are sophisticated technical products, you must properly install, use and maintain them to ensure they continue to operate within their normal specifications. The following instructions must be adhered to and integrated into your safety program when installing, using and maintaining Brooks Products.

•Read all instructions prior to installing, operating and servicing the product. If this instruction manual is not the correct manual, please see back cover for local sales office contact information. Save this instruction manual for future reference.

•If you do not understand any of the instructions, contact your Brooks Instrument representative for clarification.

•Follow all warnings, cautions and instructions marked on and supplied with the product.

•Inform and educate your personnel in the proper installation, operation and maintenance of the product.

•Install your equipment as specified in the installation instructions of the appropriate instruction manual and per applicable local and national codes. Connect all products to the proper electrical and pressure sources.

•To ensure proper performance, use qualified personnel to install, operate, update, program and maintain the product.

•When replacement parts are required, ensure that qualified people use replacement parts specified by Brooks Instrument. Unauthorized parts and procedures can affect the product's performance and place the safe operation of your process at risk. Look-alike substitutions may result in fire, electrical hazards or improper operation.

•Ensure that all equipment doors are closed and protective covers are in place, except when maintenance is being performed by qualified persons, to prevent electrical shock and personal injury.

Pressure Equipment Directive (PED)

All pressure equipment with an internal pressure greater than 0.5 bar (g) and a size larger than 25mm or 1" (inch) falls under the Pressure Equipment Directive (PED). The Directive is applicable within the European Economic Area (EU plus Norway, Iceland and Liechtenstein). Pressure equipment can be traded freely within this area once the PED has been complied with.

•Section 1 of this manual contains important safety and operating instructions related to the PED directive.

•Meters described in this manual are in compliance with EN directive 97/23/EC module H Conformity Assessment.

•All Brooks Instrument Flowmeters fall under fluid group 1.

•Meters larger than 25mm or 1" (inch) are in compliance with category I, II, III of PED.

•Meters of 25mm or 1" (inch) or smaller are Sound Engineering Practice (SEP).

ESD (Electrostatic Discharge)

Handling Procedure:

1.Power to unit must be removed.

2.Personnel must be grounded, via a wrist strap or other safe, suitable means before any printed circuit card or other internal device is installed, removed or adjusted.

3.Printed circuit cards must be transported in a conductive container. Boards must not be removed from protective enclosure until immediately before installation. Removed boards must immediately be placed in protective container for transport,

storage or return to factory.

Comments

This instrument is not unique in its content of ESD (electrostatic discharge) sensitive components. Most modern electronic designs contain components that utilize metal oxide technology (NMOS, SMOS, etc.). Experience has proven that even small amounts of static electricity can damage or destroy these devices. Damaged components, even though they appear to function properly, exhibit early failure.

Installation and Operation Manual

X-VA-MT3810-eng

Part Number: 541B050AAG December, 2008

Dear Customer,

Model MT 3810

We appreciate this opportunity to service your flow measurement and control requirements with a Brooks Instrument device. Every day, flow customers all over the world turn to Brooks Instrument for solutions to their gas and liquid low-flow applications. Brooks provides an array of flow measurement and control products for various industries from biopharmaceuticals, oil and gas, fuel cell research and chemicals, to medical devices, analytical instrumentation, semiconductor manufacturing, and more.

The Brooks product you have just received is of the highest quality available, offering superior performance, reliability and value to the user. It is designed with the ever changing process conditions, accuracy requirements and hostile process environments in mind to provide you with a lifetime of dependable service.

We recommend that you read this manual in its entirety. Should you require any additional information concerning Brooks products and services, please contact your local Brooks Sales and Service Office listed on the back cover of this manual or visit www.BrooksInstrument.com

Yours sincerely,

Brooks Instrument

Model MT 3810

Installation and Operation Manual

X-VA-MT3810-eng Part Number: 541B050AAG December, 2008

THIS PAGE WAS

INTENTIONALLY

LEFT BLANK

Installation and Operation Manual

X-VA-MT3810-eng

Part Number: 541B050AAG December, 2008

Contents

Model MT 3810

Section 1 Introduction
Paragraph		Page
Number		Number
1-1	Description .......................................................................................................................................	1-1
1-2	Design Features ...............................................................................................................................	1-1
1-3	Specifications - Meter .......................................................................................................................	1-1
1-4	Options .............................................................................................................................................	1-2
1-5	Optional Electronic Equipment .........................................................................................................	1-2
1-5a	Microprocessor Transmitter With or Without Alarms and Pulse Output
	Based on Brooks Smart Meter Management Technology ................................................................	1-5
1-5b Microprocessor Transmitter With Inductive Alarms .........................................................................		1-14
1-5c	Inductive Alarms Switches ...............................................................................................................	1-17
Section 2 Installation
2-1	General .............................................................................................................................................	2-1
2-2	Receipt of Equipment .......................................................................................................................	2-1
2-3	Recommended Storage Practice ......................................................................................................	2-1
2-4	Return Shipment ..............................................................................................................................	2-2
2-5	Transit Precautions ..........................................................................................................................	2-2
2-6	Removal from Storage......................................................................................................................	2-2
2-7	Installation of Flowmeter ..................................................................................................................	2-3
2-8	Installation of Model MT 3810 Flowmeter with a Smart Meter Manager
	Transmitter with or without Optional Alarms and Pulse Output ........................................................	2-4
2-9	Installation of Model MT 3810 Flowmeter with a Smart Meter Manager
	Transmitter with Inductive Alarms (1 or 2 Switches) ........................................................................	2-10
2-10 Installation of Models Model MT 3809 and MT 3819 Flowmeters with Inductive Alarms
	(1 or 2 Switches) .............................................................................................................................	2-10
Section 3 Operation
3-1	Pre-Start Check ................................................................................................................................	3-1
3-2	Start-Up and Operation of Flowmeter ...............................................................................................	3-1
3-3	Operation of Model MT 3810 Flowmeter with a Smart Meter Manager
	Transmitter with or without Optional Alarms and Pulse Output for Totalization ................................	3-1
3-4	Operation of Model MT 3810 Flowmeter with a Smart Meter Manager
	Transmitter with Inductive Alarms (1 or 2 Switches) ........................................................................	3-13
3-5	Operation of Model MT 3810 Flowmeter with Inductive Alarms (1 or 2 Switches) ..........................	3-13
Section 4 Maintenance
4-1	General Service Information .............................................................................................................	4-1
4-2	Meter Float Replacement and Cleaning ...........................................................................................	4-2
4-3	Meter Indicator Reference Mark (Zero) Adjustment .........................................................................	4-5
4-4	Smart Meter Manager Transmitter Replacement with or without Alarms and Pulse Output .............	4-5
4-5	Inductive Alarm Replacement ...........................................................................................................	4-5
Section A CE Certification
	CE Certification ................................................................................................................................	A-1
Warranty, Local Sales/Service Contact Information.......................................................................		Back Cover

Contents

Model MT 3810

Installation and Operation Manual

X-VA-MT3810-eng Part Number: 541B050AAG December, 2008

Figures
Figure		Page
Number		Number
1-1	Model MT 3810 Meter Dimensions...................................................................................................	1-4
1-2	Transmitter Only Wiring Diagram .....................................................................................................	1-7
1-3	Transmitter Only Wiring Notes .........................................................................................................	1-8
1-4	Transmitter with Alarm and Pulse Outputs Wiring Diagram .............................................................	1-9
1-5	Transmitter with Alarm and Pulse Outputs Wiring Notes ................................................................	1-10
1-6	Power Supply vs. Maximum Load resistance ..................................................................................	1-11
1-7	Model MT 3810 Explosion-proof Housing Wiring Diagram..............................................................	1-13
1-8	Transmitter with Inductive Alarms Wiring Diagram..........................................................................	1-15
1-9	Transmitter with Inductive Alarms Wiring Notes ..............................................................................	1-16
1-10 Inductive Alarms Only Wiring Notes ................................................................................................		1-19
1-11	Inductive Alarms Only Wiring Notes ................................................................................................	1-20
2-1	Typical Bypass Installation................................................................................................................	2-3
2-2	Smart Meter Manager Electrical Configuration.................................................................................	2-5
2-3	Typical SMM Transmitter Analog Output and Power Wiring .............................................................	2-5
2-4	Alternate SMM Transmitter Analog Output and Power Wiring (Where 4-20 mA is not required) .....	2-6
2-5	Multi-drop SMM Transmitter Analog Output and Power Wiring ........................................................	2-6
2-6	Typical SMM Transmitter with Alarms and Pulse Digital Output and Power Wiring..........................	2-8
3-1	Model MT 3810 SMM Electronics Device Description Tree (Basic Setup) .......................................	3-3
3-2	Model MT 3810 SMM Electronics Device Description Tree (Detailed Setup) ...................................	3-4
3-3	HART Communicator .......................................................................................................................	3-5
3-4	Typical HART Communicator Interface ............................................................................................	3-5
3-5	HART Communicator Action / Hot Keys ...........................................................................................	3-6
3-6	HART LCD .......................................................................................................................................	3-6
4-1	Meter Float Replacement & Cleaning...............................................................................................	4-6
Tables
Table		Page
Number		Number
1-1	Model MT 3810 Capacities, Pressure Drop and Viscosity Immunity Ceiling ....................................	1-3
1-2	Model MT 3810 Pressure Ratings ....................................................................................................	1-3
1-3	Maximum Fluid Temperatures at 104oF (40oC) Ambient ..................................................................	1-3

Installation and Operation Manual

X-VA-MT3810-eng

Part Number: 541B050AAG December, 2008

Section 1 Introduction

Model MT 3810

1-1 Description

The Brooks® Model MT 3810 Variable Area Flowmeter is a rugged, all metal flowmeter offering 5% full scale accuracy. The Model MT 3810 is constructed with stainless steel components for measuring a variety of liquid and gas applications.

Flow rate indication is provided by means of magnetic coupling where a magnet, encapsulated in the float, is coupled to a rotatable magnet located in the rear of the indicator, thus turning the dial indicator mounted on the meter.

Optional accessories available include 4-20 mA output with HART® microprocessor transmitter with or without configurable alarms and pulse output for totalization. The microprocessor electronics are based on the proprietary Smart Meter ManagerTM technology utilized as the basis for an array of Brooks products. Also available are front adjustable inductive alarms.

1-2 Design Features

•Broad range of flow capacities

•5% Full scale accuracy

•Versatile construction for all gas and liquid applications

•No back pressure required for operation

•Flanged or female NPT connections

•Optional 4-20 mA and HART programmable microprocessor transmitter with or without alarms and pulse output for totalization

•Electronics designed with either intrinsically safe or explosion proof construction to meet UL (US & Canada) ATEX certifications and CE requirements

1-3 Specifications - Meter

WARNING

Do not operate this instrument in excess of the specifications listed below. Failure to heed this warning can result in serious personal injury and/or damage to the equipment.

Capacities, Pressure Drop and Viscosity Immunity Ceilings

Refer to Table 1-1

Accuracy

Standard Flow Accuracy: ± 5% Full Scale

Repeatability

0.25% Full Scale

Pressure Ratings

Refer to Table 1-2 for maximum non-shock pressure

Pressure Equipment Directive (PED) 97/23/EC

Flow meter complies under Sound Engineering

Practices (SEP) or Catagories I, II or III

1-1

Section 1 Introduction

Model MT 3810

Installation and Operation Manual

X-VA-MT3810-eng Part Number: 541B050AAG December, 2008

Scales

Standard: Detachable aluminum plate single or dual scales Graduations: Choice of direct reading units, millimeter or percentage of maximum flow.

Operating Fluid Temperature Limits/Meter only

Minimum: -58°F (-50°C)

Maximum: 420°F (215°C)

Meter with Valve: 392oF (200oC)

Refer to Table 1-3 for temperature limitations for meters with electronics.

Materials of Construction:

Metering Tube

316L stainless steel

Flanges and End Fittings

Flanges: 316/316L dual certified stainless steel

NPT: 316L stainless steel

Connections

150 lbs or 300 lbs RF ANSI B 16.5 flanges or PN 40 DIN 2527/2635 or Female NPT

125/175 Ra flange finish Vertical inlet and outlet

Floats

Standard: 316L stainless steel

O-rings (NPT only)

Standard: Viton® fluoroelastomers

Optional: Teflon®

Indicator Housing and Cover

Enclosure NEMA 4X construction

Die cast aluminum, polyurethane paint with glass window

Meter Dimensions

Refer to Figure 1-1, Sizes 7-13

1-4 Options

Needle Valves and Sight Flow Indicators

For flowrate control, needle valves may be externally piped into the inlet or outlet side of the instrument. Needle valves can be supplied up to size 10 (1") maximum 6.6 gpm (1,500 l/hr) water equivalent. Sight flow indicators are available for all flanged meters and to size 13 (2") NPT meters.

1-5 Optional Electronic Equipment

	Electronic equipment available with the Model MT 3810 includes the
	Microprocessor Transmitter, Microprocessor Transmitter/Alarm/Pulse
	Output for totalization, Inductive Alarms, and Transmitter with Inductive
	Alarms, refer to the following sections for additional information. All models
1-2	are designed to be either Intrinsically Safe or Explosion Proof.
1-2

Installation and Operation Manual

X-VA-MT3810-eng

Part Number: 541B050AAG December, 2008

Section 1 Introduction

Model MT 3810

Table 1-1 Model MT 3810 Capacities, Pressure Drop and Viscosity Immunity Ceiling

		CONNECTION SIZE						FLOAT MATERIAL STAINLESS STEEL 316L
METER		DIN	ANSI		FLOAT	WATER		AIR 1,2			Press Drop	Press Drop	VIC (cSt)		Max. Visc	PED
SIZE		DN mm	inches		CODE	l/h	gpm	scfm	nm3/h		mbar	inches WC		(cSt)	(cSt)	Category
		15	1/2"		A	25	0.11	0.49	0.78		30	13	1		40	SEP
7					B*	65	0.28	1.2	2		30	13	1		20	SEP
7					C	130	0.59	2.4	3.7		30	13	1		120	SEP
					C	130	0.59	2.4	3.7		30	13	1		120	SEP
					D*	200	0.88	3.7	5.8		35	15	1		20	SEP
		15	1/2"		A	250	1.1	5.2	8.2		45	19	2		250	SEP
8					B	400	1.7	7.7	12		55	23	1		180	SEP
8					C	650	2.8	11	18		60	25	2		475	SEP
					C	650	2.8	11	18		60	25	2		475	SEP
					D	1000	4.4	21	33		130	53	1.5		250	SEP
		25	1"		A	1200	5.2	19	30		60	25	5		475	CAT I, II or III
10					B	1500	6.6	31	49		70	29	1.5		400	CAT I, II or III
10					C	2400	10	41	65		85	35	7		475	CAT I, II or III
					C	2400	10	41	65		85	35	7		475	CAT I, II or III
					D	3500	15	65	100		155	63	4		475	CAT I, II or III
		40	1 1/2"		A	4000	17	67	100		50	21	50		475	CAT I, II or III
12					B	6000	26	94	140		60	25	30		475	CAT I, II or III
12					C	8000	35	150	230		150	61	2		475	CAT I, II or III
					C	8000	35	150	230		150	61	2		475	CAT I, II or III
					D	10000	46	210	330		300	121	2		475	CAT I, II or III
		50	2"		A	6500	28	100	160		50	21	50		475	CAT I, II or III
13					B	9500	41	160	250		60	25	50		475	CAT I, II or III
13					C	12000	55	200	310		100	41	2.5		475	CAT I, II or III
					C	12000	55	200	310		100	41	2.5		475	CAT I, II or III
					D	20000	88	390	620		300	121	1		475	CAT I, II or III
1. Air flows in scfm are given at 70°F and 14.7 psia							2. Air flows in nm3/h are given at 0°C and 1.013 bar (a)
3. *Minimum operating pressure required 7 psig / 0.48 bar
Table 1-2 Model MT 3810 Pressure Ratings
							316/316L Stainless Steel (psig at indicated temperature)
Flange Rating*
Flange Rating*				-20°F to 100°F			200°F	300°F		400°F		500°F		600°F		617°F
	150 lb.			275			240	215		195		170		140		134
	300 lb.			720			620	560		515		480		450		448


							316L Stainless Steel (psig at indicated temperature)
Threaded NPT
Threaded NPT				-20°F to 100°F			200°F	300°F		400°F		500°F		600°F		617°F
	7 & 8			1500			1500	1400		1400		1300		1200		1200
	10			1500			1500	1400		1400		1300		1200		1200
	12			1500			1500	1400		1400		1300		1200		1200
	13			1300			1300	1200		1200		1100		1000		1000

*Flanges are dual certified 316/316L Stainless Steel

Table 1-3 Maximum and Minmum Fluid Temperature at 104oF (40oC) Ambient

Size	Indicator Only	Indicator with Alarm		Indicator with Transmitter
7 thru 13	-58° thru 420° F	-22° thru 320° F		-22° thru 195° F
7 thru 13	-50° thru 215° C	-30° thru 160° C		-30° thru 90° C
	-50° thru 215° C	-30° thru 160° C		-30° thru 90° C
3810 Minimum and Maximum Ambient Temperature

	Indicator Only	Indicator with Alarm or Transmitter
	-22° thru 150° F	-22° thru 150° F
	-30° thru 65° C		-30° thru 65° C

1-3

Section 1 Introduction

Model MT 3810

Installation and Operation Manual

X-VA-MT3810-eng Part Number: 541B050AAG December, 2008

Model MT 3810 NPT-F Connection mm (inches)*

























Meter Size	Connection		A		B		C		D		E	WEIGHT (Approx.)
7 & 8	1/2" NPT-F	225 (8.85)		88 (3.46)		72 (2.83)		53 (2.09)		59 (2.32)		1.3 kg (3 lbs.)
10	1" NPT-F	300 (11.81)		95 (3.78)		80 (3.15)		59 (2.32)		96 (3.78)		2.8 kg (7 lbs.)
12	1-1/2" NPT-F	300 (11.81)		105 (4.13)		89 (3.50)		65 (2.56)		96 (3.78)		5 kg. (12 lbs.)
13	2" NPT-F	300 (11.81)		111 (4.37)		95 (3.74)		77 ( 3.63)		96 (3.78)		6.3 kg (14 lbs.)

Model MT 3810 Flanged Connections mm (inches)*

























Meter Size	Connection		A		B		C		D		E	WEIGHT (Approx.)
7 & 8	1/2" Flange	250 (9.84)		88 (3.46)		72 (2.83)		53 (2.09)		71 (2.78)		2.5 kg (6 lbs.)
10	1" Flange	250 (9.84)		96 (3.78)		80 (3.15)		59 (2.32)		71 (2.78)		4.2 kg (10 lbs.)
12	1-1/2" Flange	250 (9.84)		105 (4.13)		89 (3.50)		65 (2.56)		71 (2.78)		6.8 kg (15 lbs.)
13	2" Flange	250 (9.84)		111 (4.37)		95 (3.74)		77 (3.03)		71 (2.78)		8.7 kg (20 lbs.)

*Dimensions shown are for standard indicator units as well as units with the Smart Meter Manager transmitter or stand-alone inductive alarms.

Consult factory for dimensions of units with transmitters plus alarms or transmitters with inductive alarms.

Figure 1-1 Model MT 3810 Meter Dimensions

1-4

Installation and Operation Manual

X-VA-MT3810-eng

Part Number: 541B050AAG December, 2008

Section 1 Introduction

Model MT 3810

1-5a Microprocessor Transmitter with or without Alarms and Pulse Output Based on Brooks Smart Meter Manager Technology

Design Features

•A 2-wire, loop-powered device for ease of wiring and installation

•4-20 mA analog output for flowrate, with Bell-202 modulated HART communication channel

•User selectable 0% and 100% analog output ranges with optional smoothing

•Flexible (mix & match) units of measure for flowrates, totals, temperatures, densities, etc.

•Two flow totalizers: Resettable and inventory totalization

•User configurable, scaleable pulse output for various engineering units

•Comprehensive alarms for both process flow and internal diagnostic checks

•Easily configured and compatible with other plant equipment

•Patented magnetic sensor which is resistant to external magnetic fields

Description

“Smart Inside” best defines the Brooks transmitter with optional alarms and pulse output for totalization. The transmitter (with or without the alarms and pulse output) is a compact microprocessor device designed to interface directly with the Model MT 3810 flowmeter. The microprocessor electronics are based on the Brooks Smart Meter Manager (SMMTM) technology common to other Brooks flowmeters.

The transmitter is HART-programmable for numerous variables such as flow rate, totalization, calibration factors, and high-low alarm parameters. It is programmable with easy-to-use hand held configurators such as the EmersonTM HART 275 Communicator. Prior to shipment, commonly used default values are programmed by Brooks to ensure ease of operation and quick startup. However, parameters may be reprogrammed by the user if needed. The 2-wire electronics system is easy to install and inface with other existing equipment such as process management systems or maintenance control packages.

In operation the microprocessor transmitter converts the measured process flow into a 4-20 mA output with HART protocol. The signal originates when the float magnet inside the metering tube passes a magnetic sensor mounted on the transmitter. Flow rate information may be viewed locally at the meter scale or displayed remotely (along with other flow data) as a function of external support systems through analog/pulse outputs or multiple digital communications.

In addition to transmitter features, this unit can also be ordered with optional alarms and pulse output provided by open collector switches. One or two alarms may be programmed prior to shipment of the unit or at the customer site with a hand-held communicator.

1-5

Section 1 Introduction

Model MT 3810

Installation and Operation Manual

X-VA-MT3810-eng Part Number: 541B050AAG December, 2008

Specifications - SMM Microprocessor Transmitter with or without Alarm and Pulse Output

EMC Directive 89/336/EEC: EN 50081, EN 50082 and EN 61326-1

Hazardous Location Classification

Enclosure: Type 4X/ IP65

Ambient Temperature: -22°F> Tamb < 150°F (-30°C > Tamb < 65°C)

Intrinsically Safe

United States and Canada UL Listed, E73889, Vol. 1, Sect. 15 Class I, II and III, Division 1, Groups A, B, C, D, E, F, and G; T4

Europe – KEMA 01ATEX1235 X

II 2 G EEx ia IIC T4

II 2 D T135oC

Entity Parameters (Transmitter):

Ui=Vmax=30 Vdc; Ii=Imax=140 mA; Ci= 15 nF; Li= 0 mH

Entity Parameters (Integral Alarms):

Ui=Vmax=30 Vdc; Ii=Imax=45 mA; Ci= 0 nF; Li= 0 mH

Non-Incendive

United States and Canada UL Listed, E73889, Vol. 1, Sect. 15 Class I, II, III, Division 2, Groups A, B, C,D F, and G; T4

Europe – KEMA 01ATEX1236

II 3 G EEx nA II T4

II 3 D T135o C

1-6

Installation and Operation Manual

X-VA-MT3810-eng

Part Number: 541B050AAG December, 2008

Section 1 Introduction

Model MT 3810

Ref. No.981Y006 - Rev. D Sheet 1 of 2

Figure 1-2 Transmitter Only Wiring Diagram

1-7

Section 1 Introduction

Model MT 3810

Installation and Operation Manual

X-VA-MT3810-eng Part Number: 541B050AAG December, 2008

Ref. No.981Y006 - Rev. D Sheet 2 of 2

Figure 1-3 Transmitter Only Wiring Notes

1-8

Installation and Operation Manual

X-VA-MT3810-eng

Part Number: 541B050AAG December, 2008

Section 1 Introduction

Model MT 3810

Ref. No.981Y005 - Rev. F Sheet 1 of 2

Figure 1-4 Transmitter with Alarm and Pulse Outputs Wiring Diagram

1-9

Section 1 Introduction

Model MT 3810

Installation and Operation Manual

X-VA-MT3810-eng Part Number: 541B050AAG December, 2008

Ref. No.981Y005 - Rev. F Sheet 2 of 2

Figure 1-5 Transmitter with Alarm and Pulse Outputs Wiring Notes

1-10

Installation and Operation Manual

X-VA-MT3810-eng

Part Number: 541B050AAG December, 2008

Section 1 Introduction

Model MT 3810

Explosionproof/ Flame-proof

United States and Canada UL Listed, E73889, Vol. 1, Sect. 14 Class I, Division 1, Groups C, D;

Dust Ignition-proof, Class II, Division 1, Groups E, F, G; Class III; T4

Europe – KEMA 01ATEX2207 X
II 2	G EEx d IIB T4
II 2	D T135o C

Note: Load resistance should also include I.S. barrier resistance. When using Model 275 HART Communicator the minimum load resistance is 250 ohms.

Figure 1-6 Power Supply vs. Maximum Load Resistance

Output Signals

Transmitter: 4-20 mA analog output with HART

Update Rate: 4 times per sec.

Range: 3.8 to 22.0 mA

Two Alarm Outputs (open collector)

Optically isolated outputs assignable to alarms, reverse flow indicator, or manual valve.

Maximum off-state voltage: 30 Vdc Maximum off-state current: 0.05 mA Maximum on-state voltage: 1.2 Vdc Maximum on-state current: 20 mA

One Pulse Output (open collector)

Optically isolated. Scaleable to a variety of engineering unit systems (pulses per liter, gallons, etc.)

Range: 1 Hz to 1 kHz

Maximum off-state voltage: 30 Vdc Maximum off-state current: 0.05 mA Maximum on-state voltage: 1.2 Vdc Maximum on-state current: 20 mA

1-11

Section 1 Introduction

Model MT 3810

Installation and Operation Manual

X-VA-MT3810-eng Part Number: 541B050AAG December, 2008

Linearity

Less than 1% at I maximum

Temperature Influence

Less than 0.04% per °C

Voltage Influence

Less than 0.002%/Vdc

Load Resistance Influence

± 0.1% full scale

Transmitter, Alarm and Pulse Output Wiring Diagrams

Refer to Figures 1-2, 1-3, 1-4, 1-5 and 1-7

For Division 1 explosion proof installations, the optional explosion proof enclosure must be used. This enclosure does not use the auxiliary terminal box, as shown on some of the installation diagrams. All connections are made directly within the housing. Cable entry device shall be certified as Flameproof type, suitable per the conditions of use and correctly installed. If used with conduit, refer to Figure 1-7, a sealing device shall be provided in accordance with Figure 1-7.

For Division 2 non-incendive installations, either the standard enclosure or the explosion proof enclosure may be used.

For both Division 1 explosion proof and Division 2 non-incendive installations, the barriers shown in the installation drawings are unnecessary. However, NEC Class 2 circuits are required.

The circuits shall be wired separately or using a Multicore Cable Type B, in accordance with EN 60079-14. Also wiring must be done in accordance with the applicable electrical codes, ie., NEC Chapter 5, CEC Section 18 and any local codes.

TRANSMITTER ACCESSORIES

General purpose and intrinsically safe HART compatible power supplies are available in 110V, 24V and 220V.

1-12

Installation and Operation Manual

X-VA-MT3810-eng

Part Number: 541B050AAG December, 2008

Section 1 Introduction

Model MT 3810

Ref. No.981Y008 - Rev. D Sheet 1 of 1

Figure 1-7 Model MT3810 Explosion-Proof Housing Wiring Diagram

1-13

Section 1 Introduction

Model MT 3810

Installation and Operation Manual

X-VA-MT3810-eng Part Number: 541B050AAG December, 2008

1-5b Microprocessor Transmitter with Inductive Alarms

This combined system provides both the sophistication of the microprocessor along with the simplicity of one or two switch inductive alarms. Specifications for the transmitter are as stated previously and specifications for the front adjustable inductive alarms are as follows.

Wiring Diagrams

Refer to Figures 1-7, 1-8 and 1-9

1-14

+ 46 hidden pages