Honeywell STD800 Technical Information

SmartLine

Technical Information

STD800 SmartLine Differential Pressure

Specification 34-ST-03-82, Jan 2021

Introduction

Part of the SmartLine® family of products, the STD800 is a high performance differential pressure transmitter featuring piezoresistive sensor technology. By combining differential pressure sensing with on chip static pressure and temperature compensation the STD800 offers high accuracy and stability 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 0.035% of span standard & 0.025% of span optional

Stability up to 0.01% of URL per year for 15 years

Automatic static pressure & temperature compensation

Rangeability up to 400:1

Response times as fast as 90ms

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 12.27.0

World class overpressure protection

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 – STD800 Differential 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	LRL	Min Span
	“H2O (mbar)	“H2O (mbar)	“H2O (mbar)
STD810	10 (25)	-10 (-25)	0.1 (0.25)
STD820	400 (1000)	-400 (-1000)	1.0 (2.5)
Model	psi (bar)	psi (bar)	psi (bar)
STD830	100 (7.0)	-100 (-7.0)	1 (0.07)
STD870	3000 (210)	-100 (-7.0)	30 (2.1)

2	STD800 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 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

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

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

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

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

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

o Transmitter messaging

o Maintenance mode indication

Unique “Health Watch” indication provides instant visibility of diagnostics

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

o Tamper reporting

o FDM Plant Area Views with Health summaries

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

STD800 Smart Pressure Transmitter	3

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 in-tolerance performance characteristics.

Modular Features:

Meter body replacement

Exchange/replace electronics/comms modules*

Add or remove integral indicators*

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.

Plugged Impulse Line Detection:

STD800 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:

STD800 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	STD800 Smart Pressure Transmitter

Performance Specifications

Reference Accuracy (conformance to +/-3 Sigma)

Table 1

					Maximum	Stability	Reference
	Model	URL	LRL	Min Span	Turndown	(% URL/ Yr	Accuracy1,2
					Ratio	for 15 years)	(% Span) Std/Opt
	STD810	10 in H2O (25mbar)	-10 in H2O (-25mbar)	0.1 in H2O	100:1	0.015	0.035
				(0.25mbar)
	STD820	400 in H2O	-400 in H2O	1 in H2O (2.5mbar)	400:1	0.010	0.0375 / 0.025
		(1000mbar)	(-1000mbar)
	STD830	100 psi (7.0 bar)	-100 psi (-7.0 bar)	1 psi (0.07 bar)	100:1	0.020	0.0375 / 0.0325
	STD870	3000 psi (210 bar)	-100 psi (-7.0 bar)	30 psi (2.1 bar)	100:1	0.010	0.0375 / 0.0350

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

Accuracy at Specified Span, Temperature and Static Pressure Effects: (conformance to +/-3)

Table 2

								Combined Zero &			Combined Zero &
					Accuracy1,2			Span temperature			Span Static Line
								Effect			Pressure Effect4
					(% of Span)
								(% Span / 28oC (50			(% Span/1000psi)3
									F))
			Reference				C
	Model	URL			A	B	(see URL	D		E	F	G
			Turndown
							units)
	STD810	10 in H2O	10:1		0.010	0.025	1 (2.5)	0.070		0.040	0.050	0.075
		(25mbar)
<![if ! IE]> <![endif]>Standard Accuracy	STD820	400 in H2O	16:1		0.005	0.0325	25 (62.5)	0.025		0.007	0.080	0.007
		(1000mbar)
	STD830	100 psi	6.7:1		0.005	0.0325	15 (1.05)	0.025		0.010	0.075	0.075
		(7.0 bar)
	STD870	3000 psi	15:1		0.005	0.0325	200 (14)	0.025		0.006	0.075	0.075
		(210 bar)
	STD820	400 in H2O	16:1		0.005	0.020	25 (62.5)	0.025		0.0107	0.080	0.007
<![if ! IE]> <![endif]>High Accuracy Option		(1000mbar)
	STD830	100 psi	6.7:1		0.005	0.0275	15 (1.05)	0.025		0.010	0.075	0.075
		(7 bar)
	STD870	3000 psi	15:1		0.005	0.030	200 (14)	0.025		0.006	0.075	0.075
		(210 bar)
				Turn Down Effect				Temp Effect			Static Effect

STD800 Smart Pressure Transmitter	5

Total Performance = +/- √(Accuracy)2 + (Temp Effect)2+ (Static Line Pressure Effect)2

Total Performance Examples: (standard accuracy 5:1 Turndown, up to 50 oF shift & up to 1000 psi Static Pressure3)

Model	Total Performance	Model	Total Performance
STD810 @ 2”H2O	0.505% of span	STD830 @ 20 psi	0.140% of span
STD820 @ 80” H2O	0.135% of span	STD870 @ 600 psi	0.131% of span

Typical Calibration Frequency: Calibration verification is recommended every four (4) years

Notes:

1.Terminal based Accuracy – Incudes combined effects of linearity, hysteresis and repeatability. Analog output adds 0.005% of span

2.For zero based spans and reference conditions of 25 C (77 F). 0 psig static pressure. 10 to55% RH, and 316 Stainless Steel barrier diaphragm.

3.STD810 includes only zero shift with static pressure. Results ar % of span/25 psig.

Operating Conditions – All Models

Parameter

Reference

Rated Condition

Operative Limits

Transportation and

Condition

Storage

C

F

C

F

C

F

C

F

Ambient Temperature1

STD800

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

STD810, 820, 830, 870

25±1

77±2

-40 to 1101

-40 to 2301

-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

All Models Except STD810

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 (IS versions limited to 30 Vdc)

Load Resistance

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

Maximum Allowable

Standard:

Working Pressure (MAWP)4,5

STD810 = 50 psi (3.45 bar)

(ST 800 products are rated to

STD820, STD830 and STD870 = 4,500 psi (310 bar)

Maximum Allowable Working

Optional:

Pressure. MAWP depends on

Approval Agency and transmitter

STD820, STD830, STD870 = 6,000 psi (420 bar)

materials of construction.)

Static Pressure Limit = Maximum Allowable Working Pressure (MAWP) = Overpressure

Limit for ST 800 Differential Pressure Transmitters

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).

4MAWP applies for temperatures -40 to 125 C. Static Pressure Limit is de-rated to 3,000 psi for -26 C to -40 C. for all models except STD810. Use of

graphite. o-rings de-rates transmitter to 3,625 psi. Use of 1/2:” process adaptors with graphite o	-rings de-rates transmitter to 3,000 psi.
5 Consult factory for MAWP of ST 800 transmitters with CRN approval.

6	STD800 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
	(includes power up & test		HART or DE: 2.5 sec.		Foundation Fieldbus: Host dependant
	algorithms)
	Response Time		DE/HART Analog Output		FOUNDATION Fieldbus
	(delay + time constant)		90mS		150mS (Host Dependant)
	Damping Time Constant		HART: Adjustable from 0 to 32 seconds in 0.1 increments. Default: 0.50 seconds
			DE: Discrete values 0, .16, .32, .48, 1, 2, 4, 8, 16, 32 seconds. Default: 0.48 seconds
	Vibration Effect		Less than +/- 0.1% of URL w/o damping
	ST 820, ST 830, ST 870		Per IEC60770-1 field or pipeline, high vibration level (10-2000Hz: 0.21
			displacement/3g max acceleration)
	Electromagnetic Compatibility		IEC 61326-3-1
	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)