Computer Operations 4

Computer Interface Commands and Operation

MAX?

MCARD?

Table 4-5. Command and Query Reference (cont)

Channel’s Maximum Value

Returns the maximum value(s) measured since the review array was last cleared. Channel’s Maximum Value

MAX?

<channel>

 

 

<channel>

= 0, 1, 2, ...20, or leave blank

Returns maximum measurement values for either the indicated channel, or for all defined channels if the <channel> field is left blank. An Execution Error results if a request is made for a channel defined as OFF, the channel specified is invalid, the channel specified has been set up but not yet measured, or Review array values have been cleared by REVIEW_CLR, or by changing any parameter on any channel. The return is a signed number with decimal point and exponent. For slow scanning rate, 5 digits are returned (+/-XX.XXXE+/-N); for fast scanning rate, 4 digits are returned (+/-XX.XXE+/-N). The channel range setting determines placement of the decimal point. A return of +001.00E+9 indicates an overload (OL) condition; a return of +009.00E+9 indicates an open thermocouple (otc) condition. If no channel specification is made, all the maximum values of the scanned channels are returned, each separated by a comma.

Example: MAX? 1 returns +022.34E+0 [The maximum scanned value of channel 1 is 22.34.]

Example: MAX? returns +009.00E+9,+890.22E+0,+230.96E-3 [Three channels were scanned. The first channel shows an open thermocouple; the second channel had a maximum reading of 890.22; the third channel had a maximum reading of 0.230 (RATE 0 and FORMAT 1 are asserted).]

Memory Card Status

Returns the memory card status as an encoded integer number from a binary number using bits 0 to 4.

Bit 0 - Card changed; remaining bits differ from the last query

Bit 1 - A card is present in the unit

Bit 2 - Card is write protected

Bit 3, 4 - Battery status of last inserted card, as below:

BIT 4

BIT 3

MEMORY CARD BATTERY STATUS

0

0

Battery operational

0

1

Battery should be replaced; data is OK

1

0

Battery and data integrity not guaranteed

1

1

Battery and data integrity not guaranteed

Example: MCARD? returns 7 [The memory card status is 00111 (decimal 7), meaning the card changed since the last query, a card is in the unit, the card is write protected, and battery is operational.]

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Fluke 2635A user manual Max? Mcard?, BIT Memory Card Battery Status
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2635A specifications

The Fluke 2635A is a highly advanced multichannel data acquisition system designed for engineers and technicians requiring precision and versatility in their measurement tasks. This instrument excels in monitoring and capturing data from various sources, making it a valuable tool in laboratories, production environments, and field applications.

One of the standout features of the Fluke 2635A is its ability to support up to 20 measurement channels. Users can simultaneously monitor multiple signals, which is crucial for complex testing scenarios where numerous variables need to be tracked. The device is equipped with a 6.5-digit precision measurement capability that ensures high accuracy and resolution in readings. This level of precision is particularly beneficial in applications such as environmental monitoring, research and development, and industrial process control.

The unit incorporates a variety of measurement modes, including voltage, current, temperature, and resistance, making it exceptionally versatile. The Fluke 2635A not only handles standard signals but also integrates with various transducers, providing extensive compatibility for users engaged in diverse testing applications.

To enhance data management, the Fluke 2635A offers advanced data logging capabilities. Data can be stored internally or transferred to external devices for further analysis. The internal memory can accommodate extensive datasets, which can be crucial in long-term monitoring tasks. Integration with external software enables users to analyze and visualize data effectively, allowing for informed decision-making based on comprehensive results.

The user interface is designed for ease of use, featuring a large, bright LCD display that clearly presents measurements and status information. The device is also equipped with a simple navigation system, allowing users to switch between channels and measurement types without hassle.

In terms of construction, the Fluke 2635A is built to withstand rigorous environments. It features a robust design that ensures reliability and durability, making it suitable for both laboratory settings and field operations. Furthermore, the device supports a wide temperature range, thus enabling usage in diverse conditions.

Overall, the Fluke 2635A is a powerful and flexible instrument that provides precise measurements across multiple channels, supporting a wide range of applications. Its advanced technology, combined with user-friendly features, makes it an essential tool for professionals in various fields. The combination of accuracy, flexibility, and durability solidifies its standing as a trusted choice for data acquisition and monitoring tasks.
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