CASR 6-NP LEM USA Inc, CASR 6-NP Datasheet - Page 14

• Manufacturer Part Number: CASR 6-NP
• Description: SENSOR CURRENT 6A 5V MOD
• Manufacturer: LEM USA Inc
• Series: CASRr

Specifications of CASR 6-NP

• Current - Sensing: 6A
• Accuracy: ±0.8%
• Sensitivity: 104.2mV/A
• Current - Supply: -
• Sensor Type: Flux Gate
• Voltage - Supply: 4.75 V ~ 5.25 V
• Output: 0 ~ 5 VDC
• Frequency: 300kHz
• Response Time: 300ns
• Polarization: Bidirectional
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 398-1091-5

External reference voltage
If the Ref pin of the transducer is not used it could be either left unconnected or filtered according to the previous paragraph
“Reference V
The Ref pin has two modes Ref IN and Ref OUT:
●
●
The following graphs show how the measuring range of each transducer version depends on the external reference voltage
value Vref.
100527/4
Upper limit : I
Lower limit : I
In the Ref OUT mode the 2.5 V internal precision reference is used by the transducer as the reference point for bipolar
measurements; this internal reference is connected to the Ref pin of the transducer through a 680 Ohms resistor. it tolerates
sink or source currents up to ± 5 mA, but the 680 Ohms resistor prevents this current to exceed these limits.
In the Ref IN mode, an external reference voltage is connected to the Ref pin; this voltage is specified in the range 0 to 4 V
and is directly used by the transducer as the reference point for measurements.
The external reference voltage Vref must be able:
- either to source a typical current of
- or to sink a typical current of
-10
-20
-30
-40
-50
50
40
30
20
10
0
0
REF
P
P
CASR 6
”.
= -9.6 * Vref + 44.4 (Vref = 0 .. 4 V)
= -9.6 * Vref + 3.6
1
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
V
REF
Application information (continued)
2
2
(V)
5 .
(Vref = 0 .. 4 V)
680
−
Vref
Vref
680
3
−
, the maximum value will be 3.68 mA typ. when Vref = 0 V.
2
5 .
,
the maximum value will be 2.2 mA typ. when Vref = 4 V.
4
Upper limit : I
Upper limit : I
Lower limit : I
Lower limit : I
-100
100
-20
-40
-60
-80
80
60
40
20
0
0
CASR 15
P
P
P
P
= -24 * Vref + 111 (Vref = 1.29 .. 4 V)
= 80
= -24 * Vref + 9
= -80
1
V
REF
2
(V)
(Vref = 0 .. 1.29 V)
(Vref = 0 .. 3.7 V)
(Vref = 3.7 .. 4 V)
CASR series
3
www.lem.com
Page 14/17
4