Original Honeywell RTD STT170 series of programmable temperature
transmitters STT3000
The Honeywell STT170 series of programmable temperature
transmitters provides cost effective solutions for temperature
monitoring applications. Compared to direct-wired temperature
sensor monitoring points, the STT170 series of transmitters
delivers increased accuracy, safety and reliability while also
reducing wiring costs. These transmitters automatically linearize
the temperature output signal bounded by the upper range value and
lower range value established by the user. In addition, the user
can program high or low limit alarms to activate in the case of
sensor failure.
STT171 FEATURES
• Analog 4-20 mA output
• RTD or Ohm input
• DIN form B headmount
• NAMUR NE43 sensor error response
• Configurable using STT17C configuration tool and PC
STT170 is a measurement solution for temperature monitoring
applications. It helps end users and Original Equipment
Manufacturers (OEMs) achieve reliable and accurate temperature
measurement in a cost-effective manner.
The STT170 is Honeywell’s economy-tier family of temperature
transmitters to flank the existing mid-tier STT250 and high-tier
STT350 temperature transmitters. It helps convert low level signals
from temperature sensors such as RTDs and TCs into current signals
and is capable of transmitting long distances through noisy plant
environments. The STT170 line consists of four temperature
transmitters and one configuration tool:
STT171 – Analog output, RTD-only sensor input
STT173 – Analog output, RTD or thermocouple sensor input
STT17H – HART output, RTD & thermocouple sensor input
STT17F – FOUNDATION Fieldbus protocol, RTD & thermocouple sensor
input
STT17C – PC-based configuration tool for configuring the STT171,
STT173 and STT17H transmitters
Instructions
- Choose Availability column based on Key Number.
- A dot (.) denotes unrestricted availability.
- Select the desired Key Number based on the desired communications
protocol.
- Select options and approvals from Tables.
Key Number
| Description | Selection | Availability |
4-20mA Output, RTD input 4-20mA Output, universal input HART Protocol, 4-20mA output Digital output, Foundation Fieldbus protocol Configuration tool for STT171, 173 and 17H | STT171 STT173 STT17H STT17F STT17C |
|
| |
|
|
Table I - Safety Approvals
| Approval Body | Approval Type | Location or Classification | | | | | | |
| None | No approval body certifications included | 00 | ● | ● | ● | ● | ● |
| FM, CSA, ATEX | Intrinsically Safe ENTITY Non-Incendive | Class I, Div. 1, Groups A,B,C,D, T4 Class I, Zone 0/1; AEx ia IIC, T4 Class I, Div. 2, Groups A,B,C,D, T4 | BS | ● | ● | ● | ● | |
Intrinsically Safe ENTITY Non-Incendive | Class I, Div. 2, Groups A,B,C,D, T4 Class I, Zone 0/1; Ex ia IIC, T4 Class I, Div. 2, Groups A,B,C,D, T4 |
* Intrinsically Safe Zone 0/1 | Ex II 1 GD, EEx ia IIC, T4..T6 Ex II 2 (1) GD, T4..T6 |
Non-Incendive Zone 2 | Class I, Div. 2, Groups A,B,C,D, T4 Ex II 3 G, EEx nA [L] T4..T6 | BN | | | ● | ● | |
When installed in Field Mount Enclosure Table IV, E _ _, or T _ _
| FM Approval | Intrinsically Safe ENTITY Non-Incendive | Class I, Div. 1, Groups A,B,C,D, T4 Class I, Zone 0/1; AEx ia IIC, T4 Class I, Div. 2, Groups A,B,C,D, T4 | 1G | e | e | e | e | |
| CSA | Intrinsically Safe ENTITY Non-Incendive | Class I, Div. 2, Groups A,B,C,D, T4 Class I, Zone 0/1; Ex ia IIC, T4 Class I, Div. 2, Groups A,B,C,D, T4 | 2G | e | e | e | e | |
| ATEX | * Intrinsically Safe Zone 0/1 | Ex II 1 GD, EEx ia IIC, T4..T6 Ex II 2 (1) GD, T4..T6 | 3S | e | e | e | | |
Non-Incendive Zone 2 | Class I, Div. 2, Groups A,B,C,D, T4 Ex II 3 G, EEx nA [L] T4..T6 | 3N | | | | e | |
* Ex II GD or II 2 (1) GD allows for installation in potentially
explosive atmospheres caused by the presence of combustible dusts
only when mounted in a metal enclosure of form B according to DIN
43729 (Head-Mount enclosure) that provides a degree of protection
of at least IP 6X in accordance with EN 60529, that is suitable for
the application and is correctly installed.
TABLE II - No Option
TABLE III - Configuration & Certificates
| Configuration | None - Factory Default Configuration Supplied Custom Transmitter Configuration with Printed Report ** | 0 _ _ T _ _ | ● ● | ● ● | ● ● | ● ● | ●
|
| Calibration | Custom Transmitter Calibration with Printed Report ** | C _ _ | ● | ● | ● | | |
| Optional Certificates | No Option | _ 0 _ | ● | ● | ● | ● | ● |
No Certificate of Conformance/Origin Certificate of Conformance/Origin | _ _ 0 _ _ R | ● ● | ● ● | ● ● | ● ● | |
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