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STT850 Honeywell Pressure Transmitter , Pressure Indicator Transmitter 4-20 MA Dc

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STT850 Honeywell Pressure Transmitter , Pressure Indicator Transmitter 4-20 MA Dc

Large Image :  STT850 Honeywell Pressure Transmitter , Pressure Indicator Transmitter 4-20 MA Dc

Product Details:

Place of Origin: America
Brand Name: Honeywell
Model Number: STT850

Payment & Shipping Terms:

Minimum Order Quantity: 1
Price: negotiable
Packaging Details: New in original box
Delivery Time: 5-8 work days
Payment Terms: T/T
Supply Ability: 100
Detailed Product Description
Brand: Honeywell Model: STT850
Origin: America Output: 4-20 MA Dc
Version: HART ® (version 7.0) Digital Accuracy: Up To +/- 0.10 Deg C For RTD
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Pressure Temperature Transmitter STT850 SmartLine Digital Accuracy up to +/- 0.10 Deg C for RTD 4-20 mA dc
Part of the SmartLine® family of products, the SmartLine STT850 is a high-performance temperature transmitter offering high accuracy and stability over a wide range of process and ambient 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 needs for temperature measurement applications.
Best in Class Features:
Industry leading performance
    oDigital Accuracy up to +/- 0.10 Deg C for RTD
    o Stability up to +/- 0.01% of URL per year for ten years
    o 125 mSec update time for single input models
    o 250 mSec update time for dual input models
Reliable measurement
    o Built in Galvanic Isolation
    o Differential/Averaging/Redundant/Split Range measurements
    o Dual Compartment Housing
    o Sensor Break detection
    o Comprehensive on-board diagnostic capabilities
    o Full compliance to SIL 2/3 requirements.
    o Available with 15 year warranty
    o Supports Namur 107 Extended Diagnostics
    o Supports Namur 89 Wire break
    o Direct entry of Callendar-Van Dusen coefficients R0, α, δ and β for calibrated RTD sensors (not       
       available on DE units)
Lower Cost of Ownership
    o Universal input
    o Dual sensor option
    o Multiple local display capabilities
    o Modular construction
    o External zero, span, & configuration capability
    o Polarity insensitive loop wiring
    o Digital Output Option (only available with HART)
Communications/Output Options:
    o 4-20 mA dc
    o Honeywell Digitally Enhanced (DE)
    o HART ® (version 7.0)
    o FOUNDATION™ Fieldbus compliant to ITK 6.1.2 All transmitters are available with the above listed
      communications protocols.
Make selections from all Tables Key through XIII using column below the proper arrow. Asterisk indicates availability. Letter (a) refer to restrictions highlighted in the restrictions table. Tables delimited w ith dashes.

Performance under Rated Conditions – All Models

Parameter Description
Input Span Adjustment Range No limits to adjustments within the maximum range except minimum span limit of 1 engineering unit
Analog Output Digital Communications:

Two-wire, 4 to 20 mA (HART & DE Transmitters only)
Honeywell DE, HART 7 protocol or FOUNDATION Fieldbus ITK 6.1.2 compliant All transmitters, irrespective of protocol have polarity insensitive connections.

Output Failure Modes (HART/DE only)

                     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

Output Accuracy (HART/DE only) ±0.005 % span
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
Analog Input

Stability: 0.01% of URL per Year for 10 years
Maximum Lead Wire Resistance:
Thermocouples: 50 ohms per leg
RTD (all except Pt15) and Ohms: 50 ohms per leg
RTD Pt25: 10 ohms per leg

Response Time
(delay + time constant)

                        DE/HART Analog Output     FOUNDATION Fieldbus
Single Input:     130 - 230 mSec                      Host Dependant
Dual Input:        305 - 455 mSec                      Host Dependant

Update time

125 mSec for single input units
250 mSec for dual input units

Damping Time Constant

HART: Adjustable from 0 to 102 seconds in 0.1 increments. Default: 0.50 seconds
DE: Discrete values 0.0, 0.3, 0.7, 1.5, 3.1, 6.3, 12.7, 25.5, 51.1, 102.3 seconds.
Default: 0.3 seconds

Ambient Temperature Effect

Digital Accuracy
For RTD Inputs: 0.0015 °C/°C
For T/C Inputs: 0.005 °C/°C
Output D/A: 0.0005 % of span/°C

Cold Junction Accuracy ±0.25 °C
Total Reference Accuracy

Digital Mode
Digital Accuracy + C/J Accuracy (T/C input types only)
Analog Mode (HART/DE only)
Digital Accuracy + Output D/A Accuracy + C/J Accuracy (T/C input types only) Example: Transmitter in Analog Mode with Pt100 sensor and 0 to 200°C range Total Reference Accuracy = 0.10°C + (200 °C / 100 %) * 0.005 % = 0.11 °C

Sensor Burnout Burnout detection is user selectable. Upscale or down scale with critical status message. For RTD or ohm type inputs; broken wire/wires will be indicated
Digital Output

Contact Rating
Voltage: +12 to +30 Vdc.
Current: 40mA maximum (controlled by load resistance)
Low Level: 0 to 2 Vdc

Vibration Effect Per IEC60770-1 field or pipeline, high vibration level (10-2000Hz: 0.21 displacement/3g max acceleration)
Electromagnetic Compatibility IEC 61326-3-1
Isolation 2000 Vdc (1400Vrms) Galvanic isolation between inputs and output.
Stray Rejection

Common Mode
AC (50 or 60 Hz): 120 dB (with maximum source impedance of 100 ohms) or ± 1 LSB (least significant bit) whichever is greater with line voltage applied.
DC: 120 dB (with maximum source impedance of 50 ohms) or a ±1 LSB whichever is greater with 120 Vdc applied.
DC (to 1 KHz): 50 dB (with maximum source of impedance of 50 ohms) or ±1 LSB whichever is greater with 50 Vac applied. Norma l Mode
AC (50 or 60 Hz): 60 dB (with 100% span peak-to-peak maximum)

EMC Compliance EN 61326-1 and EN 61326-3-1 (SIL)
Lightning Protection Option

Leakage Current: 10 uA max @ 42.4 VDC 85 °C
Impulse rating:   8/20 uS    5000 A (>10 strikes)  10000 A (1 strike min.)
                        10/1000 uS   200 A (> 300 strikes)


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Tel: +86 14787509512

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