MR8740T_Quick guide_eng_20191016H.pdf - 第51页

45 Attaching Connection Cords By using Model CT9920 Conversion Cable (optional), you can connect a current sensor of Model CT7000 series with Model U8977 3CH Current Unit. The instrument cannot recognize any sensor with …

Attaching Connection Cords

Connecting a current sensor with Model U8977 3CH Current Unit

You can directly connect a current sensor with the sub model-number “-05,” which has a metal

connector (ME15W).

Hold the metal

sleeve.

Point the widest key upward.

Align the connector guides of the cable with

those of the module connector.

Straightly insert the connector until it locks.

Hold the part other than metal to insert the

connector.

The instrument automatically recognizes the

model of the current sensor.

How to disconnect the current sensor

Hold and pull the metal collar, which releases

the lock.

Pull the connector.

Using Model CT9900 Conversion Cable, you can connect a current sensor without the sub model-

number “-05,” which has a plastic connector (PL23), with Model U8977 3CH Current Unit.

Model CT9900

Conversion Cable

When Model CT9900 Conversion Cable is used, the instrument recognizes Model CT6846 or

CT6865 (1000 A rating) as a 500-A AC/DC sensor. Set the conversion ratio to 2.00.

Attaching Connection Cords

By using Model CT9920 Conversion Cable (optional), you can connect a current sensor of Model

CT7000 series with Model U8977 3CH Current Unit. The instrument cannot recognize any sensor

with Model CT9920 connected.

Select a mode in the setting screen.

Supported models Model CT7631, Model CT7636, Model CT7642, Model CT7731, Model CT7736,

Model CT7742, Model CT7044, Model CT7045,

Model CT7046

Model CT9920

Conversion Cable

For current sensor

Connecting a current sensor with Model 8971 Current Unit

By using Model 9318 Conversion Cable*, you can connect a current sensor without the sub model-

number “-05,” which has a plastic connector (PL23), with Model 8971 Current Unit..

*: Model 9318 Conversion Cable is an accessory of Model 8971 Current Unit.

Model 9318

Conversion Cable

Model 8971 Current Unit

Align the guides of the conversion cable with

those of the sensor connector on the module,

and straightly insert the plug until it locks.

Align the guides of the current sensor to

be used with those of the conversion cable

connector, and straightly insert the plug until it

locks.

The instrument automatically recognizes the

model of the current sensor.

Clamp the current sensor around a line of a

measuring object.

How to connect the cable and a sensor

Hold and pull the plastic collar of the

conversion cable, which releases the lock, and

the remove the connector.

Hold and pull the plastic collar of the current

sensor, which releases the lock, and the

remove the connector.

When measuring currents with a voltage module

Using Model 9018-50 Clamp on Probe, you can measure a current using a voltage measurement

module such as Model 8966 Analog Unit.

Conguring the scaling settings allows measured waveforms to be displayed as current values. For

the setup procedure, refer to “Converting Input Values (Scaling Function)” of the Instruction Manual.

Preparing for Measurement

Attaching Connection Cords

Acceleration sensor

Connect a acceleration sensor to Model U8979 Charge Unit

Familiarize yourself with “Operation Precautions” (p. 8) before connecting a current sensor.

Acceleration sensor connectable with Model U8979

CAUTION

Use an acceleration sensor with a built-in pre-amplier that conforms to the specication

of Model U8979 Charge Unit. Using an inapplicable sensor may cause damaging itself.

Acceleration sensor type Terminal the sensor is connected to Note

With a built-in pre-amplier BNC connector Drive power: 3.5 mA, 22 V

Charge output Miniature connector (#10-32) –

Connecting an acceleration sensor with a built-in pre-amplier

Connecting a BNC-output acceleration sensor with a built-in pre-amplier

U8979 Charge Unit

BNC connector slots

Locking studs of

module connector

Locking studs

Lock

Align the slots in the BNC connector of an

acceleration sensor with the locking studs of a

BNC connector on the module, and insert the

connector.

Turn the BNC connector of the acceleration

sensor clockwise until it locks.

Attach the acceleration sensor with the built-in

pre-amplier to a measuring object.

How to connect the cable and a sensor

Turn the BNC connector of the acceleration

sensor counter-clockwise to release the lock

and remove the connector.

Connecting an acceleration sensor other than a sensor with a built-in pre-amplier

Convert the output connector into the BNC connector using a commercially available conversion

connector or conversion cable to connect the sensor.