OPERATION MANUAL

ALARM PROGRAMMING INFORMATION

9. ALARM PROGRAMMING INFORMATION

9.1 Alarm ‘ENABLE’ Word Definition

The ALARM ‘ENABLE’ WORD (16 bit word) is divided into two 8 bit bytes. The lower order byte (bits 1 –

8)is used to enable and disable the alarm functions. The higher order byte (bits 9 – 16) is used to control how the alarm is displayed and/or output to the user interface. Some bits are currently undefined and reserved for future use.

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32768

16384

8192

4096

2048

1024

512

256

128

64

32

16

8

4

2

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9.2 Low Byte ‘BIT’ Definitions

A.Under-range:Enabling the un der-range alarm bit will cause the under-range alarm to become ac- tive when the 4-20 milliamp output cur rent reaches 3.9 milliamps.

B.Over-range:Enabling the over-range alarm bit will cause the over-range alarm to become active when the 4-20 milliamp output current reaches 20.5 milliamps.

C.RTD Fault: Enabling the RTD fault alarm bit will cause the RTD fault alarm to become active if an open circuit or short circuit is sensed in the 4-wire RTD loop connection. See Section 9.3 G

D.ISO Comm error: Enabling the ISO Comm er ror alarm bit will cause the ISO Comm er ror alarm(s) to become active if any communication er rors or hard ware faults are de tected from any of the ex ter- nal 4-20 milliamp input boards. (ISO = Iso lated Out put Mod ule). See Sec tion 9.3 G.

E.Hardware Fault: Enabling the Hardware Fault error alarm bit will cause the Hardware Fault error alarm to become active if any internal hardware circuit faults (including microprocessor watchdog timer faults) are detected from the MST2000 internal circuitry.

þNote: For each alarm fault bit above, in di vid ual alarm sta tus bit(s) are pro vided in the ALARM STATUS word to iden tify which alarm is ac tive. Each alarm sta tus bit and the as so ci ated bi nary val ues are de scribed later in this section.

9.3High Byte ‘BIT’ Definitions

A.Fail-low:Enabling the Fail-low bit will cause the 4-20 milliamp output to change to the fault current value of 3.8 milliamps if any alarm is active.

B.Fail-high:Enabling the Fail-high bit will cause the 4-20 milliamp output to change to the fault current value of 21.0 milliamps if any alarm is active.

C.Last-val:Enabling the Last-val bit will cause the 4-20 milliamp output to hold at the last value if any alarm is active.

þNote:

&The user must insure that only one of the 3 fault current control bits is set for proper operation.

&When entering PROGRAM mode, the 4-20 milliamp output current will change to the fault current as set by the fault current control bits.

D.LCD Icon: Enabling the LCD Icon bit will cause the LCD ‘Alarm’ icon to be turned on if any alarm is active.

Brandt Instruments, Inc.

MST2000 Multivariable SMARTFLOW ® Transmitter

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Tamron MST2000 operation manual Alarm Programming Information, Alarm ‘ENABLE’ Word Definition, Low Byte ‘BIT’ Definitions
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MST2000 specifications

The Tamron MST2000 is a groundbreaking optical device that showcases the company's commitment to innovation and quality in the world of photography and imaging. Designed for both professional photographers and enthusiastic hobbyists, the MST2000 delivers exceptional image quality, versatility, and ease of use.

One of the standout features of the Tamron MST2000 is its superior optical design. It incorporates advanced lens element configurations that minimize aberrations and distortion, ensuring sharp and vibrant images across the entire frame. The lens construction includes high-grade glass elements that enhance light transmission, resulting in crystal-clear images even in low-light conditions. This is particularly beneficial for night photography or indoor settings where lighting may be challenging.

The MST2000 also boasts an impressive zoom range, allowing photographers to capture a wide variety of subjects with ease, from breathtaking landscapes to intimate close-ups. Its robust zoom mechanism enables seamless transitions between focal lengths, helping users to adapt to different shooting environments quickly. The zoom is complemented by a fast and accurate autofocus system that ensures subjects are sharply focused, allowing photographers to capture fleeting moments with confidence.

In terms of build quality, the Tamron MST2000 is constructed with durability in mind. The lens features a weather-sealed body, making it resistant to moisture and dust. This design consideration allows photographers to shoot in diverse conditions without fear of damage, ensuring that the MST2000 is a reliable companion in any situation.

Another notable technology featured in the MST2000 is the vibration compensation system, which helps to reduce the effects of camera shake. This is particularly beneficial when shooting at slower shutter speeds or using longer focal lengths, allowing for clearer images without the need for a tripod.

For those who appreciate creative control, the MST2000 includes various customizable settings that enhance the user experience. Photographers can fine-tune parameters such as focus and aperture easily, providing them with the flexibility to achieve their desired artistic effects.

In summary, the Tamron MST2000 offers a sophisticated combination of advanced optical technologies, versatility, and user-friendly features. Whether capturing sweeping panoramas or intricate details, this lens is designed to meet the demands of today's photographers while inspiring creativity and exploration in every shot.
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