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
“H
2
O (mbar)
LRL
“H
2
O (mbar)
Min Span
“H
2
O (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
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
o SmartLine communications protocols all meet the most
current published standards for HART/DE/Fieldbus.
o Integration with Honeywell’s Experion PKS offers the
following unique advantages.
o Transmitter messaging
o Maintenance mode indication
o Tamper reporting
o FDM Plant Area Views with Health summaries
o All 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
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
Accuracy
1,2
(% of Span)
Combined Zero &
Span temperature
Effect
(% Span / 28
o
C (50
F))
Combined Zero &
Span Static Line
Pressure Effect4
(% Span/1000psi)3
Model
URL
Reference
Turndown
A
B
C
(see URL
units)
D E F
G
Standard
Accuracy
STD810
10 in H2O
(25mbar)
10:1
0.010
0.025
1 (2.5)
0.070
0.040
0.050
0.075
STD820
400 in H2O
(1000mbar)
16:1
0.005
0.0325
25 (62.5)
0.025
0.007
0.080
0.007
STD830
100 psi
(7.0 bar)
6.7:1
0.005
0.0325
15 (1.05)
0.025
0.010
0.075
0.075
STD870
3000 psi
(210 bar)
15:1
0.005
0.0325
200 (14)
0.025
0.006
0.075
0.075
High
Accuracy
Option
STD820
400 in H2O
(1000mbar)
16:1
0.005
0.020
25 (62.5)
0.025
0.0107
0.080
0.007
STD830
100 psi
(7 bar)
6.7:1
0.005
0.0275
15 (1.05)
0.025
0.010
0.075
0.075
STD870
3000 psi
(210 bar)
15:1
0.005
0.030
200 (14)
0.025
0.006
0.075
0.075
Turn Down Effect
Temp Effect
Static Effect
Model
URL
LRL
Min Span
Maximum
Turndown
Ratio
Stability
(% URL/ Yr
for 15 years)
Reference
Accuracy
1,2
(% Span) Std/Opt
STD810
10 in H2O (25mbar)
-10 in H2O (-25mbar)
0.1 in H2O
(0.25mbar)
100:1
0.015
0.035
STD820
400 in H2O
(1000mbar)
-400 in H2O
(-1000mbar)
1 in H2O (2.5mbar)
400:1
0.010
0.0375 / 0.025
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
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”H
2
O
0.505% of span
STD830 @ 20 psi
0.140% of span
STD820 @ 80” H
2
O
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
Condition
Rated Condition
Operative Limits
Transportation and
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
inH2O absolute
Atmospheric
Atmospheric
25
13
2 (short term ) 3
1 (short term ) 3
Supply Voltage
Load Resistance
10.8 to 42.4 Vdc at terminals (IS versions limited to 30 Vdc)
0 to 1,440 ohms (as shown in Figure 2)
Maximum Allowable
Working Pressure (MAWP)
4,5
(ST 800 products are rated to
Maximum Allowable Working
Pressure. MAWP depends on
Approval Agency and transmitter
materials of construction.)
Standard:
STD810 = 50 psi (3.45 bar)
STD820, STD830 and STD870 = 4,500 psi (310 bar)
Optional:
STD820, STD830, STD870 = 6,000 psi (420 bar)
Static Pressure Limit = Maximum Allowable Working Pressure (MAWP) = Overpressure
Limit for ST 800 Differential Pressure Transmitters
1
LCD Display operating temperature -20C to +70C . Storage temperature -30C to 80C.
2
Silicone 704 minimum temperature rating is 0
o
C (32oF). CTFE minimum temperature rating is -30C (-22F).
NEOBEE M-20 minimum temperature rating is -15oC (5oF). NEOBEE is a registered trademark of Stepan Company.
3
Short term equals 2 hours at 70C (158F).
4
MAWP applies for temperatures -40 to 125C. Static Pressure Limit is de-rated to 3,000 psi for -26C to -40C. 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
Digital Communications:
Two-wire, 4 to 20 mA (HART & DE Transmitters only)
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
Modes
(NAMUR for DE Units requires
selecting display and
configuration buttons or factory
configuration)
Honeywell Standard: NAMUR NE 43
Compliance:
Normal Limits: 3.8 – 20.8 mA 3.8 – 20.5
mA
Failure Mode: ≤ 3.6 mA and ≥ 21.0 mA ≤ 3.6 mA and ≥
21.0 mA
Supply Voltage Effect
0.005% span per volt.
Transmitter Turn on Time
(includes power up & test
algorithms)
HART or DE: 2.5 sec. Foundation Fieldbus: Host dependant
Response Time
(delay + time constant)
DE/HART Analog Output FOUNDATION Fieldbus
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
ST 820, ST 830, ST 870
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
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)
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