Honeywell STG800 User Manual

SmartLine

Technical Information

STG800 SmartLine Gauge Pressure

Specification 34-ST-03-83, Jan 2021

Introduction

Part of the SmartLine® family of products, the STG800 and STG80L are high performance gauge pressure transmitter featuring piezoresistive sensor technology combining pressure sensing with on chip temperature compensation capabilities providing high accuracy, stability and performance over a wide range of application pressures and temperatures. The SmartLine family is also fully tested and compliant with Experion® PKS providing the highest level of compatibility assurance and integration capabilities. SmartLine easily meets the most demanding application needs for pressure measurement applications.

Best in Class Features:

Accuracies up to 0.0375 % of span standard & 0.025% of span optional.

Stability up to 0.015% of URL per year for 15 years

Automatic temperature compensation

Rangeability up to 100:1

Response times as fast as 80ms

Multiple local display capabilities

External zero, span, & configuration capability

Polarity insensitive electrical connections

Comprehensive on-board diagnostic capabilities

Integral Dual Seal design for highest safety based on ANSI/NFPA 70-202 and ANSI/ISA 12.27.1

Full compliance to SIL 2/3 requirements.

Modular design characteristics

Available with additional 15-year warranty

Plugged Impulse Line Detection Option

Dual/Triple Calibration Option (HART & Fieldbus Only)

Figure 1 – STG800 Gauge Pressure Transmitters feature field-proven piezoresistive sensor technology

Communications/Output Options:

4-20mA dc

Honeywell Digitally Enhanced (DE)

HART ® (version 7.0)

FOUNDATION™ Fieldbus

All transmitters are available with the above listed communications protocols.

Span & Range Limits:

	Model			URL psi				LRL			Min
				(bar)				psi (bar)			Span
	STG830/STG83L		50 (3.5)				-14.7 (-1.0)			0.5 (.35)
	STG840/STG84L		500		(35)		-14.7 (-1.0)			5 (.35)
	STG870/STG87L		3000		(210)		-14.7 (-1.0)			30 (2.1)
	STG88L		6000		(420)		-14.7 (-1.0)			60 (4.2)
	STG89L		10000 (690)				-14.7 (-1.0)			100 (6.9)

2	STG800 Smart Pressure Transmitter

Description

The SmartLine family of gauge pressure, differential pressure, and absolute pressure transmitters is designed around a high performance piezo-resistive sensor. This one sensor actually integrates multiple sensors linking process pressure measurement with on-board static pressure (DP Models) and temperature compensation measurements resulting in the best total performance available. This level of performance allows the ST 800 to replace virtually any competitive transmitter available today.

Unique Indication/Display Options

The ST 800 modular design accommodates a basic alphanumeric LCD display or a unique advanced graphics LCD display with many unparalleled features.

Basic Alphanumeric LCD Display Features

Modular (may be added or removed in the field)

0, 90,180, & 270 degree position adjustments

Configurable (HART only) and standard (Pa, KPa, MPa, KGcm2, Torr, ATM, inH2O, mH2O, bar, mbar, inH2O, inHG, FTH2O, mmH2O, mm HG, & psi) measurement units

2 Lines 16 Characters (4.13H x 1.83W mm)

Square root output indication (√)

Advanced Graphics LCD Display Features

Modular (may be added or removed in the field)

0, 90, 180, & 270 degree position adjustments

Standard and custom measurement units available.

Up to eight display screens with 3 formats are possible

(Large PV with Bar Graph or PV with Trend Graph)

Configurable screen rotation timing (1 to 30 sec)

Display Square Root capabilities may be set separately from the 4-20mA dc output signal

Unique “Health Watch” indication provides instant visibility of diagnostics

Multiple language capability. (EN, DE, FR, IT, ES, RU, TR, CN, JP)

Diagnostics

SmartLine transmitters all offer digitally accessible diagnostics which aid in providing advanced warning of possible failure events minimizing unplanned shutdowns, providing lower overall operational costs

Configuration Tools

Integral Three Button Configuration Option

Suitable for all electrical and environmental requirements, SmartLine offer the ability to configure the transmitter and display via three externally accessible buttons when either display option is selected. Zero/span capabilities are also optionally available via these buttons with or without selection of a display option.

Hand Held Configuration

SmartLine transmitters feature two-way communication and configuration capability between the operator and the transmitter. All Honeywell transmitters are designed and tested for compliance with the offered communication protocols and are designed to operate with any Standards compliant handheld configuration device.

Personal Computer Configuration

Honeywell’s SCT 3000 Configuration Toolkit provides an easy way to configure Digitally Enhanced (DE) instruments using a personal computer as the configuration interface. Field Device Manager (FDM) Software and FDM Express are also available for managing HART & Fieldbus device configurations.

System Integration

SmartLine communications protocols all meet the most current published standards for HART/DE/Fieldbus.

Integration with Honeywell’s Experion PKS offers the following unique advantages.

o Transmitter messaging

o Maintenance mode indication

o Tamper reporting

oFDM Plant Area Views with Health summaries

oAll ST 800 units are Experion tested to provide the highest level of compatibility assurance

3	STG800 Smart Pressure Transmitter

Modular Design

To help contain maintenance & inventory costs, all ST 800 transmitters are modular in design supporting the user’s ability to replace meter bodies, add indicators or change electronic modules without affecting overall performance or approval body certifications. Each meter body is uniquely characterized to provide in-tolerance performance over a wide range of application variations in temperature and pressure and due to the Honeywell advanced interface, electronic modules may be swapped with any electronics module without losing intolerance performance characteristics.

Plugged Impulse Line Detection:

STG800 models are offered with a PILD option which provides indication of a plugged impulse line or process connection. When used in conjunction with a basic or advanced display, a non-critical diagnostic indication appears on the integral display. For units without an integral display, an indication can be seen via the host or hand held device when HART Protocol is utilized.

Dual/Triple Calibration:

Modular Features

o Meter body replacement

o Exchange/replace electronics/comms modules* o Add or remove integral indicators*

o Add or remove lightning protection (terminal connection)*

* Field replaceable in all electrical environments (including IS) except flameproof without violating agency approvals.

With no performance effects, Honeywell’s unique modularity results in lower inventory needs and lower overall operating costs.

STG800 models are optionally offered with multiple calibrations. In lieu of a standard factory calibration, units can be supplied with 1, 2, or 3 customer specified calibrations. These calibrations are stored in the meter body and provide users with factory calibrated performance at up to three different calibrated ranges. This increases application flexibility without requiring any costly recalibration or additional inventory.

4 STG800 Smart Pressure Transmitter

Performance Specifications

Reference Accuracy: (conformance to +/-3 Sigma)

Table 1

					Maximum	Stability	Reference
						(% URL/	Accuracy 1,2
	Model	URL	LRL	Min Span	Turndown
						Yr for 15	(% Span)
					Ratio
						years)	Std / Opt.
	STG830	50 psi (3.5 bar)	-14.7 psi (-1.0 bar)	0.5 psi (.035 bar)
	STG83L	50 psi (3.5 bar)	-14.7 psi (-1.0 bar)	0.5 psi (.035 bar)
	STG840	500 psi (35 bar)	-14.7 psi (-1.0 bar)	5 psi (.35 bar)
							0.0375 / 0.025
	STG84L	500 psi (35 bar)	-14.7 psi (-1.0 bar)	5 psi (.35 bar)	100:1	0.010
	STG870	3000 psi (210 bar)	-14.7 psi (-1.0 bar)	30 psi (2.1 bar)
	STG87L	3000 psi (210 bar)	-14.7 psi (-1.0 bar)	30 psi (2.1 bar)
	STG88L	6000 psi (420 bar)	-14.7 psi (-1.0 bar)	60 psi (4.2 bar)
	STG89L	10000 psi (690 bar)	-14.7 psi (-1.0 bar)	100 psi (6.9 bar)			0.055 / 0.04

Zero and span may be set anywhere within the listed (URL/LRL) range limits

Accuracy at Specified Span and Temperature: (Conformance to +/-3 Sigma)

Table 2

				Accuracy1,2							Combined Zero & Span
											Temperature Effect
				(% of Span)
											(% Span/ 28oC (50oF))
	Model	URL	Reference	A			B		C		D		E
			Turndown						(see URL units)
	STG830	50 psi (3.5 bar)	33.3:1						1.5 (0.105)		0.030		0.003
<![if ! IE]> <![endif]>Accuracy	STG83L	50 psi (3.5 bar)	16:1						3 (0.21)				0.006
	STG84L	500 psi (35 bar)	35:1	0.005			0.0325		14.5	(1.0)			0.007
	STG840	500 psi (35 bar)	35:1						14.5	(1.0)			0.004
<![if ! IE]> <![endif]>Standard
	STG870	3000 psi (210 bar)	10:1						300	(21)	0.025		0.005
	STG87L	3000 psi (210 bar)	10:1						300	(21)
	STG88L	6000 psi (420 bar)	12:1						600	(35)			0.010
	STG89L	10000 psi (690 bar)	10:1	0.015			0.0400		1000 (69)
	STG830	50 psi (3.5 bar)							1.5 (0.105)		0.030		0.003
<![if ! IE]> <![endif]>Option	STG840	500 psi (35 bar)	16:1						3 (0.21)				0.006
			24:1						14.5	(1.0)			0.004
	STG83L	50 psi (3.5 bar)
<![if ! IE]> <![endif]>Accuracy				0.005			0.0200				0.025
	STG84L	500 psi (35 bar)							14.5	(1.0)			0.007
	STG870	3000 psi (210 bar)	6.7:1						300	(21)			0.005
<![if ! IE]> <![endif]>High	STG87L	3000 psi (210 bar)							300	(21)
	STG88L	6000 psi (420 bar)							600	(35)			0.010
	STG89L	10000 psi (690 bar)	15:1	0.015			0.0250		1000 (69)
				Turn Down Effect							Temp Effect
				±[ + ]			≥				± [ + (			)]
			± [ + (				)] <

5	STG800 Smart Pressure Transmitter

Total Performance (% of Span):

Total Performance Calculation: = +/- √ (Accuracy)2 + (Temperature Effect)2

Total Performance Examples (for comparison): Standard accuracy 5:1 Turndown, +/-50 oF (28oC) shift

STG830 @ 10 psi	0.059% of span	STG840 @ 100 psi	0.059% of span	STG870 @ 600 psi	0.063% of span
STG83L @ 10 psi	0.071% of span	STG84L @ 100 psi	0.071% of span	STG87L @ 600 psi	0.084% of span
STG88L @ 1200 psi	0.084% of span	STG89L @ 2000 psi	0.093% of span

Typical Calibration Frequency:

Calibration verification is recommended every four (4) years

Notes:

1.Terminal Based Accuracy - Includes combined effects of linearity, hysteresis, and repeatability. Analog output adds 0 .005% of span.

2.For zero based spans and reference conditions of: 25 oC (77oF) for LRV>= 0 psia, 10 to 55% RH, and 316 Stainless Steel barrier diaphragm.

3.STG830 and STG83L, for LRV<0 and / or URV<0, B = 1.25 and E = 0.25.

Operating Conditions – All Models

Parameter

Reference

Rated Condition

Operative Limits

Transportation and

Condition

Storage

C

F

C

F

C

F

C

F

Ambient Temperature1

25±1

77±2

-40 to 85

-40 to 185

-40 to 85

-40 to 185

-55 to 120

-67 to 248

Meter Body Temperature2

25±1

77±2

-40 to 110

1

-40 to 230

1

-40 to 125

-40 to 257

-55 to 120

-67 to 248

Humidity

%RH

10 to 55

0 to 100

0 to 100

0 to 100

Vac. Region – Min. Pressure

mmHg absolute

Atmospheric

25

2 (short term)3

inH2O absolute

Atmospheric

13

1 (short term)3

Supply Voltage

10.8 to 42.4 Vdc at terminals

Load Resistance

0 to 1,440 ohms (as shown in Figure 2)

Maximum Allowable

Working Pressure (MAWP)4

STG830:

50 psi (3.5 bar)

STG83L:

50 psi (3.5 bar)

(Maximum allowable working

STG840:

500 psi (35 bar)

STG84L:

500 psi (35 bar)

pressure is the maximum pressure

STG870: 3000 psi (210 bar )

STG87L:

3000 psi (210 bar)

allowed for the normal transmitter

STG88L:

6000 psi (420 bar)

operation. MAWP depends on

Approval agencies and transmitter

STG89L: 10000 psi (690 bar)

material of construction. MAWP are

same as URL for gauge and

absolute pressure transmitters)

Over pressure

STG830: 75 psi (5.25 bar) STG83L: 75 psi (5.25 bar)

These are the pressure limits

STG840: 1500 psi (103 bar) STG84L: 1500 psi (103 bar)

the transmitters can

withstand without damage

STG870: 4500 psi (310 bar) STG87L: 4500 psi (310 bar)

STG88L: 9000 psi (620 bar)

STG89L: 15000 psi (1035 bar)

1LCD Display operating temperature -20 C to +70 C . Storage temperature -30 C to 80 C.

2Silicone 704 minimum temperature rating is 0oC (32oF). CTFE minimum temperature rating is -30 C (-22 F). NEOBEE M-20 minimum temperature rating is -15oC (5oF). NEOBEE is a registered trademark of Stepan Company.

3Short term equals 2 hours at 70 C (158 F).

4Consult factory for MAWP of ST 800 transmitters with CRN approval.

6	STG800 Smart Pressure Transmitter

Figure 2 - Supply voltage and loop resistance chart & calculations

Performance Under Rated Conditions – All Models

	Parameter		Description
	Analog Output		Two-wire, 4 to 20 mA (HART & DE Transmitters only)
	Digital Communications:		Honeywell DE, HART 7 protocol or FOUNDATION Fieldbus ITK 6.0.1 compliant
			All transmitters, irrespective of protocol have polarity insensitive connection.
	HART & DE Output Failure			Honeywell Standard:		NAMUR NE 43
	Modes		Compliance:
	(NAMUR for DE Units requires		Normal Limits:	3.8 – 20.8 mA		3.8 – 20.5
	selecting display and		mA
	configuration buttons or factory		Failure Mode:	≤ 3.6 mA and ≥ 21.0 mA		≤ 3.6 mA and ≥
	configuration)		21.0 mA
	Supply Voltage Effect		0.005% span per volt.
	Transmitter Turn on Time		HART or DE: 2.5 sec
	(includes power up & test
			Foundation Fieldbus: Host dependent
	algorithms)
	Response Time		DE/HART Protocol	FOUNDATION Fieldbus
	(delay + time constant)		80ms	150ms (Host Dependent)
	Damping Time Constant		HART: Adjustable from 0 to 32 seconds in 0.1 increments.			Default Value: 0.5
			seconds
			DE: Discrete values 0, 0.16, 0.32, 0.48, 1, 2, 4, 8, 16, 32 seconds. Default Value:
			0.48 seconds
	Vibration Effect		Less than +/- 0.1% of URL w/o damping
			Per IEC60770-1 field or pipeline, high vibration level (10-2000Hz: 0.21
			displacement/3g max acceleration)
	Electromagnetic Compatibility		Complies with EMC directive 2004/108/EC per IEC 61326-3-1 (HART/ DE Units) IEC
			61326-1 (FF Units)
	Lightning Protection Option		Leakage Current: 10uA max @ 42.4VDC 93C
			Impulse rating:
			8/20uS	5000A (>10 strikes)	10000A (1 strike min.)
			10/1000uS 200A (> 300 strikes)

7				STG800 Smart Pressure Transmitter
Materials Specifications (see model selection guide for availability/restrictions with various models)
	Parameter		Description
	Barrier Diaphragms Material		STG800: 316L SS, Hastelloy® C-2762, Monel® 4003, Tantalum, Gold-plated 316L SS,
			Gold-plated Hastelloy® C-276, Gold-plated Monel® 400
			STG80L: 316L SS, Hastelloy C-276
	Process Head Material		STG800: Carbon Steel (Zinc Plated), 316 SS4, Hastelloy® C-2766, Monel® 4007
			STG80L: 316L SS, Hastelloy C-2766
	Vent/Drain Valves & Plugs 1		STG800:316 SS4, Hastelloy C-2762, Monel 4007
			STG80L: N/A
	Head Gaskets		STG800: Glass-filled PTFE standard. Viton® and graphite are optional. STG80L: N/A
	Meter Body Bolting		STG800: Carbon Steel (Zinc plated) standard. Options include 316 SS, NACE A286
			SS bolts and nuts or NACE A286 SS bolts and 304 SS nuts STG80L: N/A
	Mounting Bracket		Carbon Steel (Zinc-plated) or 304 SS or 316SS angle bracket or Carbon Steel or
			304SS or 316SS flat bracket available with 2” pipe bracket. See Figure 3.
	Fill Fluid		Silicone 200, CTFE, NEOBEE M-20 or Silicone 704
	Electronic Housing		Pure Polyester Powder Coated Low Copper (<0.4%)-Aluminum. Meets NEMA 4X,
			IP66, IP67 and NEMA 7 (explosion proof). All stainless steel housing is optional.
	Process Connections		STG800: ½ -inch NPT female, DIN 19213 (standard)
			STG80L: ½ -inch NPT female, ½ -inch NPT male, 9/16 Aminco, DIN19213 (except
				STG89L),
				G ½ -B Male threaded
	Wiring		Accepts up to 16 AWG (1.5 mm diameter).
	Dimensions		See Figure 4 and 5
	Net Weight		STG800: 8.3 pounds (3.8 Kg). STG80L: 3.6 pounds (1.6 Kg) with Aluminum Housing
1	Vent/Drains are sealed with Teflon®	2		Hastelloy® C-276 or UNS N10276
3	Monel® 400 or UNS N04400	4		Supplied as 316 SS or as Grade CF8M, the casting equivalent of 316 SS.

5Carbon Steel heads are zinc-plated and not recommended for water service due to hydrogen migration. For that service, use 316 stainless steel wetted Process Heads.

6Hastelloy® C-276 or UNS N10276. Supplied as indicated or as Grade CW12MW, the casting equivalent of Hastelloy® C-276

7Monel® 400 or UNS N04400. Supplied as indicated or as Grade M30C, the casting equivalent of Monel® 400