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Atec Chroma-12061 User Manual

Page 2

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Built-in usB (usBtmc supported)

Different from the traditional interface, Chroma 12061 uses USB as its standard feature that not only improves the transmission speed but
also makes the connection more easier with the plug and play function.

The USB interface fully supports USBTMC (USB Test & Measurement Class). As long as the instrument is equipped with USB interface that
supports USBTMC, it can communicate with PC in real time via VISA driver without the restrictions of platform and environment. USBTMC is
a communication protocol built on top of the USB and uses GPIB-like methodology to communicate with USB. Therefore, from user’s point
of view using USB should be as simple as using GPIB.

temperature measurement

Chroma 12061 has temperature measurement function that supports 7 kinds of Thermocouples:E, J, K, N, R, S, and T type. It also
supports RTDs 4-wire measurement. The built-in ITS-90, IEC751 and Callendar-Van Dusen temperature conversion can satisfy the diverse
measurement requirements of yours.

multi-point scanner card

A120000 Multi-point Scanner Card

HI

Channel 1

Scanner Card Configuration

LO

HI

Channel 2

LO

HI

LO

HI

LO

HI

Channel 3

LO

HI

Channel 4

OUT A

OUT B

LO

HI

Channel 5

4-Pole

2-Pole

LO

HI

Channel 6

LO

HI

Channel 7

LO

HI

Channel 8

LO

HI

Channel 9

LO

HI

Channel 10

LO

A120000 Scanner Card Configuration

SPECIFICATION
Model

A120000

Maximum AC Voltage

125V rms or 175V peak, 100kHz,

1A switched, 62.5VA (resistive load)

Maximum DC Voltage

110V, 1A switched, 30VA (resistive load)

Contact Life

>100000 operations at maximum signal level;

>100000000 operations cold switching.

Contact Resistance

<1ohm at end of contact life

Actuation Time

5ms maximum on/off

Contact Potential

<±500nV typical per contact, 1μV max

<±500nV typical per contact pair, 1μV max

Connector Type

Screw terminal, #22 AWG wire size

Isolation btw Any
Two terminals

>10 Gohm, < 75pF

Isolation btw Any
Terminal and Earth

>10 Gohm, < 150pF

Common Mode Voltage

350V peak btw any terminal and earth

Max. Voltage btw Any
Two Terminals

200V peak

Max. Voltage btw Any
Terminal and M3500A
Input LO

200V peak

Environmental

Meets all 12061 Environmental Spec.

Chroma 12061 can provide PASS/FAIL signal
to system by USB port (either communication or
PASS/FAIL signal) with high/low limit set. USB
type B female connect to system with signal (1
floating/ 2 PSS/ 3 FAIL/ 4 GND) in 2ms low and
please disable USB interface. If result over the
high/low limit, the beeper will alarm and signal
output. (Beeper can be off)

pass/fail signal output

Pin 1

(floating)

1

2

4

3

Pin 4

(GND)

Pin 2

(pass)

Pin 3

(fail)

Chroma 6½ Digital Multimeter supports Multi-point Scanner Card
which is a scanning measurement tool not supported by most of the
6½ Digital Multimeters in the field.

Multi-point Scanner Card offers multiplexing ten two poles (ACV,
ACI, DCV, DCI, Resistance, Period, Frequency) that can be installed
to the extension card option directly on the rear panel.