Honeywell STR93D Performance Under Rated Conditions General for all Models, Parameter Description

Models: STR94G STR93D

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Performance Under Rated Conditions * - Models STR94G (0 to 500 psi/35 bar)

Parameter

 

Description

Upper Range Limit

psi

500

 

bar

35

Minimum Span

psi

20

 

bar

1.4

Turndown Ratio

 

25 to 1

 

 

Zero Elevation and Suppression

No limit except minimum span from absolute 0 (zero) to +100% URL.

 

 

Accuracy (Reference – Includes

In Analog Mode: ±0.10% of calibrated span or upper range value (URV), whichever is

combined effects of linearity,

 

greater, terminal based.

hysteresis, and repeatability)

 

In Digital Mode: ±0.075% of calibrated span or upper range value (URV), whichever

 

 

Accuracy includes residual error

is greater, terminal based.

after averaging successive

 

 

readings.

 

 

For FOUNDATION Fieldbus use

 

Digital Mode specifications. For

 

HART use Analog Mode

 

 

specifications.

 

 

 

 

 

*Performance specifications are based on reference conditions of 25°C (77°F), zero (0) static pressure, 10 to 55% RH, and 316L Stainless Steel barrier diaphragm.

Transmitter Minimum Span and Maximum Capillary Length

Minimum recommended span for STR93D DP Transmitter with two Remote Seals

Diaphragm

 

 

 

Capillary

 

 

 

Capillary Length

Size

5'

10'

15'

20'

25'

30'

35'

maximum

2.0

15 psig

20 psig

25 psig

-

-

-

-

15'

2.4

150 iwc

200 iwc

250 iwc

300 iwc

350 iwc

400 iwc

450 iwc

35'

2.9

50 iwc

75 iwc

100 iwc

125 iwc

150 iwc

175 iwc

200 iwc

35'

3.5

25 iwc

25 iwc

25 iwc

28 iwc

32 iwc

36 iwc

40 iwc

35'

4.1

25 iwc

25 iwc

25 iwc

25 iwc

25 iwc

27 iwc

30 iwc

35'

Minimum recommended span for STR94G or STR93D DP Transmitter with one Remote Seal

Diaphragm

Direct

 

 

Capillary

 

 

Capillary Length

Size

Mount

5'

10'

15'

20'

30'

35'

maximum

2.0

25 psi

30 psi

40 psi

50 psi

-

-

-

15'

2.4

10 psi

15 psi

20 psi

25 psi

30 psi

40 psi

50 psi

35'

2.9

8 psi

9 psi

10 psi

11 psi

12 psi

14 psi

15 psi

35'

3.5

2 psi

2 psi

3 psi

4 psi

5 psi

7 psi

8 psi

35'

4.1

0.9 psi

0.9 psi

1 psi

2 psi

3 psi

4 psi

5 psi

35'

Minimum span is the higher of the value from the table above or the value defined under Performance Conditions for the range transmitter

Figure 15— Maximum capillary length and diaphragm size chart.

Performance Under Rated Conditions - General for all Models

Parameter

Description

Output (two-wire)

Analog 4 to 20 mA or DE digital communications mode. Options available for

 

FOUNDATION Fieldbus and HART protocols.

 

 

Supply Voltage Effect

0.005% of span per volt.

 

 

Damping Time Constant

Adjustable from 0 to 32 seconds digital damping.

 

 

CE Conformity (Europe)

89/336/EEC, Electromagnetic Compatibility (EMC) Directive.

 

 

NAMUR NE 43 Compliance

Transmitter failure information is generated when the measuring information is invalid or

Option

no longer present. Failure information is transmitted as a current signal but outside the

 

normal 4-20 mA measurement signal level. Transmitter failure values are:

 

≤ 3.6 mA and ≥ 21.0 mA. The normal signal range is ≥ 3.8 mA and ≤ 20.5 mA.

 

 

SIL 2/3 Compliance

SIL certified to IEC 61508 for non-redundant use in SIL 2 related Safety Systems

 

(single use) and for redundant (multiple) use in SIL 3 Safety Systems through

 

TÜV Nord Sys Tec GmbH & Co. KG under the following standards: IEC61508-1: 1998;

 

IEC 61508-2: 2000; IEC61508-3: 1998.

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Honeywell STR93D, STR94G manual Performance Under Rated Conditions General for all Models, Parameter Description

STR94G, STR93D specifications

The Honeywell STR93D and STR94G are advanced temperature controllers designed for precision temperature management in a variety of applications, from industrial processes to HVAC systems. These intelligent devices are engineered to enhance efficiency, reliability, and user flexibility, catering to both simple and complex control scenarios.

The STR93D is characterized by its dual-channel capability, making it ideal for processes requiring simultaneous temperature monitoring and control. Its robust design ensures stable performance even in demanding environments. The controller features a user-friendly interface that includes a large, backlit display, allowing operators to easily navigate through menus and settings. The intuitive design simplifies the setup process, reducing installation time and minimizing user error.

On the other hand, the STR94G takes automation a step further with its advanced features and connectivity options. This model is equipped with a comprehensive set of control algorithms, including PID, on-off, and fuzzy logic controls, ensuring precise temperature regulation. The STR94G also supports multiple input types, such as thermocouples and RTDs, providing versatility across various applications.

Both models incorporate Honeywell's proprietary Smart Control technology, which optimizes energy consumption and enhances operational efficiency. This technology not only ensures accurate temperature management but also contributes to reduced operational costs by minimizing energy waste. Additionally, the controllers support communication protocols such as Modbus and BACnet, facilitating easy integration into existing systems and enabling remote monitoring capabilities.

Both controllers are built with durability in mind, featuring a rugged housing that protects against environmental factors, including dust and moisture. This makes them suitable for use in harsh industrial settings as well as in less demanding environments. Their adaptability and advanced technology provide users with solutions that not only meet but exceed industry standards.

In summary, the Honeywell STR93D and STR94G are exemplary temperature controllers that stand out in their field. They combine advanced control features, robust design, and exceptional connectivity, making them suitable for a wide range of applications. Whether for industrial use or commercial HVAC installations, these controllers deliver reliability and efficiency, setting a benchmark in temperature control solutions.